阅读说明：本技术 一种双凸极永磁电机相电流驱动开关控制方法及系统 (control method and system for doubly salient permanent magnet motor phase current driving switch ) 是由 周智庆 叶树林 田英 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种双凸极永磁电机相电流驱动开关控制方法及系统,首先给出理想磁链分布和电流开关状态,得出驱动开关电路开关通断模态的四状态控制法,通过非线性模型分析和测试,其反电动势得到验证,并通过动态模型分析,结果显示所提出针对两相FMDSPM相绕组电流开关通断控制方法的有效性,延长了驱动开关导通时间,从而延长了使用寿命较短,有效地对两相FMDSPM电机执行驱动控制,既可以两相绕组连续单相工作的方式形成两相电机,也可以两相同时工作形成两相电机,取决于应用场合对输出品质的要求,为开关角度控制、调速理论和驱动电路以及输出扭矩优化等发展提供了有效基础支撑。(The invention discloses a method and a system for controlling a doubly salient permanent magnet motor phase current driving switch, which firstly give ideal flux linkage distribution and current switching state, obtain a four-state control method for driving the on-off mode of a switching circuit, analyze and test through a nonlinear model, the back electromotive force is verified, and the result shows the effectiveness of the on-off control method for the two-phase FMDSPM phase winding current switch through dynamic model analysis, the conduction time of the driving switch is prolonged, therefore, the service life is prolonged to be short, the two-phase FMDSPM motor is effectively driven and controlled, the two-phase motor can be formed in a mode that two-phase windings work continuously in a single phase, the two phases can also work simultaneously to form the two-phase motor, and effective basic support is provided for the development of switch angle control, speed regulation theory, driving circuit, output torque optimization and the like depending on the requirements of application occasions on output quality.)

1. A method for controlling a double-salient pole permanent magnet motor phase current driving switch is characterized by comprising the following steps:

Step 1, constructing a torque generation model;

Step 2, generating torque output through a torque generation model;

step 3, obtaining a phase current conducting state according to the torque output;

And 4, controlling the on-off of the switch according to the on-state of the phase current.

2. The method for controlling a doubly salient permanent-magnet machine phase current driven switch of claim 1, wherein in step 1, the method for constructing the torque generation model comprises the following steps:

The torque production model of the FMDSPM motor was thus constructed as follows:

Wherein v is the voltage across the phase winding, R is the phase winding resistance, i is the phase winding current, e is the phase winding back EMF, λ is the phase winding flux linkage, λ is the phase winding current, and_mis a permanent magnet flux linkage, L is a phase winding inductance, P_eFor input power, W_CThe phase winding stores energy, is determined by inductance and current, is generally very small and can be ignored; t is time, ω_rIs the angular speed, theta, of the rotor_rFor rotor position angle, T_eIs the output torque.

3. the method for controlling a doubly salient permanent-magnet machine phase current driven switch of claim 1, wherein in step 2, the method for generating the torque output by the torque generation model comprises the following steps:

Output torque T neglecting slot torque_eComposed of two parts, the first term in the formula (6) represents the reluctance torque generated by the inductance change of a phase winding, obviously, the reluctance torque shows periodic change as the prior DSPM motor, and the second term is permanent magnet torque due to the torque generationthe stator poles are in high saturation, so the first term in the formula (6) is very small, and the output torque is mainly permanent magnet torque;

wherein R ═ R_A,r_B]For each phase resistance of A and B, Λ ═ λ_A,λ_B]is a two-phase winding flux linkage of A and B,the inductor is an A-phase inductor and a B-phase inductor, and the condition of single-phase operation is mainly considered, so that no common inductance exists; lambda_mIs a permanent magnet flux linkage, I ═ I_A.i_B]Is two-phase current of A and B, t is time, V ═ U_A,U_B]The voltage of the A and B two-phase windings is unidirectional, and the voltage of the U phase winding is.

4. The method for controlling a phase current driven switch of a doubly salient permanent magnet motor of claim 1, wherein in step 3, the phase current on-state is obtained according to the torque output by:

When the rotor of the FMDSPM motor is at a position of 0 degrees, in a 90 mechanical angle, the flux linkage of a phase winding changes for a period, the flux linkage is almost unipolar, a motor driving switching circuit of the FMDSPM motor is a double H-bridge driving circuit of a torque generation model, and each H-bridge drives a phase winding; according to the principle of torque generation, torque output is generated in the rising phase and the falling phase of the flux linkage, and corresponding winding current is positive or negative, so that the ideal switch on-off curve of the phase current is obtained, and the phase current on-state exists in two large areas, namely m1 and m2, wherein each area has two states, m1-1 or m1-2 and m1-3, and m2-1 or m2-2 and m 2-3;

5. The method for controlling the phase current driving switch of the doubly salient permanent magnet motor according to the claim 1, wherein in the step 4, the method for controlling the on-off of the switch according to the phase current on-state is as follows:

The resulting switching on and off of the switches according to the large regions m1, m2 of the phase current conducting states and the two states m1-1 or m1-2 and m1-3 present in each region, and m2-1 or m2-2 and m2-3, constitutes a four-state switch on and off control method with the switching on and off in each mode with only 30 ° and 12 ° and 30 ° and 18 °, respectively.

6. The method as claimed in claim 1, wherein the two-phase FMDSPM motor has a large adjustable space for the on/off angle position of the switch for each phase current, so that the speed range of the steady torque output can be significantly extended, and the two-phase motor can be formed by two-phase continuous single-phase operation or two-phase motor can be formed by two-phase simultaneous operation.

7. A doubly salient permanent magnet machine phase current drive switch control system, the system comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to run in the units of the following system:

A torque model construction unit for constructing a torque generation model;

A torque output unit for generating a torque output through the torque generation model;

The phase current on-state unit is used for obtaining a phase current on-state according to the torque output;

And the on-state control unit is used for controlling the on-off of the switch according to the on-state of the phase current.

Technical Field

The disclosure relates to the field of medical equipment and the field of navigation, in particular to a method and a system for controlling a double-salient-pole permanent magnet motor phase current driving switch.

Background

double salient permanent magnet motors (DSPM) are proposed in the 90 s [1], and the DSPM is easy to obtain application advantages in industry due to the characteristics of simple and firm structure, high efficiency and energy density and the like, and various scholars conduct extensive research on the DSPM, provide various double salient permanent magnet motors and powerfully promote the further development of the DSPM; the method mainly comprises two aspects: the research of a motor body and a switch driving control circuit, a document [2] introduces a doubly salient permanent magnet motor with an 8/6 pole structure, documents [3-5] carry out extensive research on the motor, a document [6] introduces an electro-magnetic doubly salient permanent magnet motor and discloses the basic characteristics of the motor, in documents [7-8], the control and application of the switch angle of the motor are researched to obtain higher torque output quality, a transposition idea is utilized in document [9], a novel doubly salient permanent magnet motor is provided, a designed special structure is favorable for obtaining higher-quality output torque, however, the force index is also reduced, a document [10] introduces a three-phase oblique-pole rotor DSPM motor, a 6-state control logic is provided, and the effectiveness is verified; document [11] proposes a single-phase 4/6-pole doubly salient permanent magnet motor, and discloses that the use of a full-pitch winding has higher winding and space utilization.

in document [12], a two-phase space-aligned winding doubly salient permanent magnet motor (FMDSPM) is proposed, a 12/8 pole structure, the flux linkage is almost unipolar, however, each phase of winding flux linkage has twice the rate of change of concentrated windings, and therefore each phase of winding has higher back electromotive force, and analysis shows that the phase of winding has higher power density under the same condition.

reference to the literature

[1]Liao Y,Liang F,Lipo T A.A novel permanent magnet motor with doubly salient structure[J].IEEE Trans.on Industry Applications,1995,31(5):1059～1078.

[2]Chau K T,Cheng Ming,Chan C C.Performance analysis of 8/6-pole doubly salient permanent magnet motor[J].Electric machines and power systems.1999,27(10):1055-1067.

[3] chengming, Zhou Hui province, analysis and control of novel split winding doubly salient variable speed permanent magnet motor [ J ]. China science E edition, 2001,31(3):228-237.

[4] The design, control and operation of double salient pole motor (I) [ J ]. micro special motor (2003, 31(2): 7-9).

[5] the design, control and operation of the double salient pole motor (II) [ J ] micro special motor (2003, 31(4): 8-10).

[6] Simulation study of coherent, cyclic and doubly salient motor torque ripple [ J ]. Mingjing university of aerospace, 2001,33(4):366-371.

[7] design and analysis of a double-salient-pole electric excitation starting motor [ J ] a micro motor, 2016,44 (7): 26-30.

[8] Current tail [ J ] in single-chopping current hysteresis controlled doubly salient permanent magnet motor three-phase bridge power converter, chinese electrical and technical bulletin, 2005,25 (20): 124-131.

[9] Gong Yu, Wei, and Octagon, etc. the new double salient pole permanent magnet motor with transposition design is adopted [ J ]. the Chinese institute of electrical engineering, 2009,29(36):42-48.

[10] The design of the skewed-pole rotor of the double-salient-pole permanent magnet motor and the winding commutation mode are researched by Neng bin, Gong Yu and Jiang, J, the Proc of electrotechnics, 2005,20(7):70-75.

[11] A new double salient pole single-term permanent-magnet motor features that its working principle and parameters are calculated (J, 2000,20(10): 14-18).

[12] zhouzhiqing, late shongbin, he jiaying a novel high energy density and low cost two-phase doubly salient permanent magnet machine [ J ] the report on electrical technology, 2013,28 (9): 310-320.

The above prior art methods have the technical problem that the service life of the drive switch is short due to short conduction time of the drive switch, and the drive control of the two-phase FMDSPM motor cannot be effectively executed.

Disclosure of Invention

the present disclosure aims to solve the above problems, and provides a method and a system for controlling a phase current driving switch of a doubly salient permanent magnet motor, according to an FMDSPM motor proposed in the background art [12], taking a certain 6/4-pole two-phase FMDSPM motor as an example, a flux linkage distribution and current on-off method of the FMDSPM motor is analyzed to obtain a four-state switch control method, a counter electromotive force output by a nonlinear model is verified through an experiment, and the effectiveness of the four-state switch control method is verified through nonlinear dynamic analysis, specifically including the following steps:

Step 1, constructing a torque generation model;

Step 2, generating torque output through a torque generation model;

Step 3, obtaining a phase current conducting state according to the torque output;

and 4, controlling the on-off of the switch according to the on-state of the phase current.

Further, in step 1, the method for constructing the torque generation model is as follows:

For an FMDSPM motor, of three stator poles on both sides of a phase winding in the direction of motor rotor rotation, the stator pole where a magnetic field slides in or out is in a state of generating torque, and therefore, all stator poles in the FMDSPM motor are in a state of outputting torque, while for a DSPM motor, there is always one stator pole without outputting torque, and despite the above-mentioned differences, the basic principle of FMDSPM motor torque generation is substantially the same as that of the DSPM motor, and thus, a torque generation model is constructed as follows:

Wherein v is the voltage across the phase winding, R is the phase winding resistance, i is the phase winding current, e is the phase winding back EMF, λ is the phase winding flux linkage, λ is the phase winding current, and_mIs a permanent magnet flux linkage, L is a phase winding inductance, P_efor input power, W_Cthe phase winding stores energy, is determined by inductance and current, is generally very small and can be ignored; t is time, ω_rIs the angular speed, theta, of the rotor_rFor rotor position angle, T_eis the output torque.

Further, in step 2, the method for generating the torque output by the torque generation model is as follows:

It can be seen from equation (6) that the output torque T is negligible when the groove torque is ignored_eComposed of two parts, the first term in the formula (6) represents the reluctance torque generated by the inductance change of a phase winding, obviously, the reluctance torque shows periodic change as the prior DSPM motor, and the second term is permanent magnet torque because the stator pole generating the torqueIn high saturation, therefore, the first term in equation (6) is small, and the permanent magnet torque is mainly used in the output torque.

Wherein R ═ R_A,r_B]For each phase resistance, lambda ═ lambda_A,λ_B]Is a two-phase winding flux linkage of A and B,The inductor is a two-phase inductor, and the condition of single-phase operation is mainly considered, so that no common inductance exists; lambda_mIs a permanent magnet flux linkage, I ═ I_A.i_B]Is a two-phase current, t is time, V ═ U_A,U_B]The voltage of the A and B two-phase windings is unidirectional, and the voltage of the U phase winding is. For the type (8) decoupling, the type (9) can be obtained. The analytical model calculation method for each modality is omitted here, please refer to documents 7-8 in the background of the invention]。

Further, in step 3, the method for obtaining the phase current on-state according to the torque output comprises the following steps:

when the rotor of the FMDSPM motor is at a position of 0 degrees, in a 90 mechanical angle, the flux linkage of a phase winding changes for a period, the flux linkage is almost unipolar, a motor driving switching circuit of the FMDSPM motor is a double H-bridge driving circuit of a torque generation model, and each H-bridge drives a phase winding; according to the torque generation principle, torque output is generated in the rising stage and the falling stage of a flux linkage, and the corresponding winding current is a positive value or a negative value at the moment, so that an ideal switch on-off curve of the phase current is obtained.

It can be seen that the phase current on-state exists in two large regions, m1 and m2, respectively, where each region has two states, m1-1 or m1-2 and m1-3, and m2-1 or m2-2 and m 2-3;

further, in step 4, the method for controlling the on/off of the switch according to the phase current on-state includes:

the switching on and off are obtained according to large areas m1 and m2 of phase current conducting states, two states m1-1 or m1-2 and m1-3 existing in each area, and m2-1 or m2-2 and m2-3, as shown in table 1, wherein table 1 is a switching on and off table in each mode, the switching on and off in each mode form the four-state switching on and off control method provided by the disclosure, and the conducting angles of the four-state switching on and off control method are only 30 degrees and 12 degrees and 30 degrees and 18 degrees respectively;

TABLE 1 on-off switch in each mode

It can be further observed that the adjustable space of the switch on-off angle position of each phase current of the two-phase FMDSPM motor is larger, so that the speed range of steady-state torque output can be obviously expanded, and meanwhile, the two-phase FMDSPM motor can be formed by two-phase continuous single-phase work and can also be formed by two-phase simultaneous work according to application occasions.

The invention also provides a double salient pole permanent magnet motor phase current driving switch control system, which comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to run in the units of the following system:

A torque model construction unit for constructing a torque generation model;

A torque output unit for generating a torque output through the torque generation model;

The phase current on-state unit is used for obtaining a phase current on-state according to the torque output;

And the on-state control unit is used for controlling the on-off of the switch according to the on-state of the phase current.

The beneficial effect of this disclosure does: the invention discloses a method for controlling a phase current driving switch of a doubly salient permanent magnet motor, which prolongs the conduction time of the driving switch, thereby prolonging the service life of the motor, effectively executing driving control on a two-phase FMDSPM motor, forming the two-phase motor in a mode that two-phase windings work continuously and in a single phase, forming the two-phase motor in a mode that the two-phase windings work simultaneously, and providing effective basic support for the development of switch angle control, speed regulation theory, driving circuit, output torque optimization and the like depending on the requirement of an application occasion on the output quality.

drawings

The foregoing and other features of the present disclosure will become more apparent from the detailed description of the embodiments shown in conjunction with the drawings in which like reference characters designate the same or similar elements throughout the several views, and it is apparent that the drawings in the following description are merely some examples of the present disclosure and that other drawings may be derived therefrom by those skilled in the art without the benefit of any inventive faculty, and in which:

FIG. 1 is a view showing a structure of a motor;

FIG. 2 shows flux linkage and current on-off diagrams;

FIG. 3 is a circuit diagram of a motor drive switch;

FIG. 4 is a diagram of a finite element solution model of a motor;

FIG. 5 is a graph of flux linkage and back EMF for a two phase winding;

FIG. 6 is a diagram showing the measured back EMF waveforms of the two-phase winding;

FIG. 7 is a graph showing phase current make-and-break and torque output for a four-state control method.

Detailed Description

The conception, specific structure and technical effects of the present disclosure will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, aspects and effects of the present disclosure. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The invention provides a method for controlling a double-salient-pole permanent magnet motor phase current driving switch, which specifically comprises the following steps:

step 1, constructing a torque generation model;

Step 2, generating torque output through a torque generation model;

Step 3, obtaining a phase current conducting state according to the torque output;

And 4, controlling the on-off of the switch according to the on-state of the phase current.

Further, in step 1, the method for constructing the torque generation model is as follows:

For an FMDSPM motor, of three stator poles on both sides of a phase winding in the direction of motor rotor rotation, the stator pole where a magnetic field slides in or out is in a state of generating torque, and therefore, all stator poles in the FMDSPM motor are in a state of outputting torque, while for a DSPM motor, there is always one stator pole without outputting torque, and despite the above-mentioned differences, the basic principle of FMDSPM motor torque generation is substantially the same as that of the DSPM motor, and thus, a torque generation model is constructed as follows:

Wherein v is the voltage across the phase winding, R is the phase winding resistance, i is the phase winding current, e is the phase winding back EMF, λ is the phase winding flux linkage, λ is the phase winding current, and_mIs a permanent magnet flux linkage, L is a phase winding inductance, P_eFor input power, W_Cthe phase winding stores energy, is determined by inductance and current, is generally very small and can be ignored; t is time, ω_rIs the angular speed, theta, of the rotor_rFor rotor position angle, T_eIs the output torque.

further, in step 2, the method for generating the torque output by the torque generation model is as follows:

It can be seen from equation (6) that the output torque T is negligible when the groove torque is ignored_eThe motor consists of two parts, wherein the first term in the formula (6) represents reluctance torque generated by inductance change of a phase winding, obviously, the reluctance torque is periodically changed like the traditional DSPM motor, the second term is permanent magnet torque, and the first term in the formula (6) is small because the stator pole generating the torque is highly saturated, and the permanent magnet torque is mainly used in the output torque.

Wherein R ═ R_A,r_B]for each phase resistance, lambda ═ lambda_A,λ_B]Is a two-phase winding flux linkage of A and B,The inductor is a two-phase inductor, and the condition of single-phase operation is mainly considered, so that no common inductance exists; lambda_mIs a permanent magnet flux linkage, I ═ I_A.i_B]Is a two-phase current, t is time, V ═ U_A,U_B]The voltage of the A and B two-phase windings is unidirectional, and the voltage of the U phase winding is. For the type (8) decoupling, the type (9) can be obtained. The analytical model calculation method for each modality is omitted here, please refer to documents 7-8 in the background of the invention]。

further, in step 3, the method for obtaining the phase current on-state according to the torque output comprises the following steps:

Fig. 1 is a motor configuration diagram, in fig. 1, when a rotor of an FMDSPM motor is positioned at 0 ° from a position, a phase winding flux linkage is changed by one cycle within a 90 mechanical angle, as shown in fig. 2, which is a flux linkage and current on-off diagram, the flux linkage being almost unipolar, fig. 3 is a motor driving switching circuit diagram, which is a double H-bridge driving circuit of a torque generation model, each H-bridge driving a phase winding; according to the torque generation principle, torque output is generated in the rising stage and the falling stage of the flux linkage, and the corresponding winding current is a positive value or a negative value, so that the ideal switch on-off curve of the phase current is obtained as shown in fig. 2.

It can be seen that the phase current on-state exists in two large regions, m1 and m2, respectively, where each region has two states, m1-1 or m1-2 and m1-3, and m2-1 or m2-2 and m 2-3;

Further, in step 4, the method for controlling the on/off of the switch according to the phase current on-state includes:

The switching on and off are obtained according to large areas m1 and m2 of phase current conducting states, two states m1-1 or m1-2 and m1-3 existing in each area, and m2-1 or m2-2 and m2-3, as shown in table 1, wherein table 1 is a switching on and off table in each mode, the switching on and off in each mode form the four-state switching on and off control method provided by the disclosure, and the conducting angles of the four-state switching on and off control method are only 30 degrees and 12 degrees and 30 degrees and 18 degrees respectively;

TABLE 1 on-off switch in each mode

m1

m2

m1-1

m1-2

m1-3

m2-1

m2-2

m2-3

S1

opening device

opening device

Closing device

Closing device

closing device

closing device

S2

closing device

closing device

Closing device

opening device

opening device

Closing device

S3

Closing device

Closing device

Closing device

Opening device

Opening device

Closing device

S4

Opening device

opening device

Closing device

Closing device

closing device

Closing device

S5

closing device

Closing device

Opening device

Closing device

Closing device

Closing device

S6

Closing device

Closing device

closing device

Closing device

Closing device

opening device

S7

closing device

Closing device

Closing device

Closing device

closing device

opening device

S8

Closing device

Closing device

opening device

Closing device

Closing device

closing device

It can be further observed that the adjustable space of the switch on-off angle position of each phase current of the two-phase FMDSPM motor is larger, so that the speed range of steady-state torque output can be obviously expanded, and meanwhile, the two-phase FMDSPM motor can be formed by two-phase continuous single-phase work and can also be formed by two-phase simultaneous work according to application occasions.

Calculation result and verification thereof

The finite element solving model of the 6/4 pole FMDSPM motor designed by the disclosure is shown in fig. 4, after calculation, the distribution of flux linkages of a phase winding is obtained and shown in fig. 5, the counter electromotive force waveform obtained by differentiating the flux linkages is also included in fig. 5, the counter electromotive force waveform obtained by experimental verification is shown in fig. 6, and the results and the demonstration of finite element solving have good consistency.

3 analysis of results

the results of the analysis are shown in FIG. 7, where m1-1 and m1-2 and m1-3 are identified in the m1 large zone in FIG. 7, three sub-zones (dotted and line boxes) are similar, and the m2 large zone is similar, and as can be seen in FIG. 7, the torque output maintains good continuity and stability, the current peak value is 4A, the single chopping control, and the average output torque is equal to about 1.4 N.m; the rationality and effectiveness of the four-state phase current on-off switch control method is demonstrated.

It has to be noted that the phase current switching angle should be adjusted due to non-linearity caused by non-uniform magnetic field spatial distribution and the quality requirement for the output torque, as indicated by a and B in fig. 7, while the switching angle between the phase currents also has a significant influence on the output, as indicated by the ellipse in fig. 7, which results in significant phase current switching torque ripple due to mishandling of the phase current switching angle.

4 conclusion

The disclosure provides a method for controlling on and off of a four-state switch driven by phase current of a two-phase FMDSPM motor, which is obtained by analyzing a torque generation principle of the two-phase FMDSPM motor:

1. The effectiveness of the on-off control method of the four-state phase current switch is verified, and the driving control can be effectively executed on the two-phase FMDSPM motor.

2. the drive switch has short conduction time, can effectively prolong the service life of the drive switch, but also brings another problem, and the utilization rate of the drive switch is not high.

3. the two-phase FMDSPM motor can form a two-phase motor in a mode that two-phase windings work continuously in a single phase, and can also form a two-phase motor in a mode that two phases work simultaneously, and the requirements of application occasions on output quality are met.

the work of the present disclosure provides an effective foundation support for the development of subsequent switch angle control, speed regulation theory and drive circuit, output torque optimization, etc.

the embodiment of the present disclosure provides a double salient pole permanent magnet motor phase current drive switch control system, and the double salient pole permanent magnet motor phase current drive switch control system of the embodiment includes: a processor, a memory and a computer program stored in the memory and executable on the processor, the processor implementing the steps in an embodiment of a phase current driven switch control system for a doubly salient permanent magnet machine as described above when executing the computer program.

The system comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to run in the units of the following system:

a torque model construction unit for constructing a torque generation model;

a torque output unit for generating a torque output through the torque generation model;

The phase current on-state unit is used for obtaining a phase current on-state according to the torque output;

And the on-state control unit is used for controlling the on-off of the switch according to the on-state of the phase current.

The double salient pole permanent magnet motor phase current driving switch control system can be operated in computing equipment such as desktop computers, notebooks, palm computers and cloud servers. The system which can be operated by the double salient pole permanent magnet motor phase current drive switch control system can comprise but is not limited to a processor and a memory. It will be appreciated by those skilled in the art that the example is merely an example of a doubly salient permanent magnet machine phase current drive switch control system and does not constitute a limitation of a doubly salient permanent magnet machine phase current drive switch control system, and may include more or less components than a proportional, or some components in combination, or different components, for example, a doubly salient permanent magnet machine phase current drive switch control system may also include input-output devices, network access devices, buses, and the like. The processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor is a control center of the double salient permanent magnet motor phase current driven switch control system operation system, and various interfaces and lines are used for connecting various parts of the whole double salient permanent magnet motor phase current driven switch control system operable system.

The memory may be configured to store the computer programs and/or modules, and the processor may implement the various functions of the double salient permanent magnet motor phase current driving switch control system by executing or executing the computer programs and/or modules stored in the memory and calling the data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.

While the present disclosure has been described in considerable detail and with particular reference to a few illustrative embodiments thereof, it is not intended to be limited to any such details or embodiments or any particular embodiments, but it is to be construed as effectively covering the intended scope of the disclosure by providing a broad, potential interpretation of such claims in view of the prior art with reference to the appended claims. Furthermore, the foregoing describes the disclosure in terms of embodiments foreseen by the inventor for which an enabling description was available, notwithstanding that insubstantial modifications of the disclosure, not presently foreseen, may nonetheless represent equivalent modifications thereto.