阅读说明：本技术 一种电容直升压自充电励磁的开关磁阻发电机变流系统 (A kind of capacitor goes straight up to the switch reluctance generator converter system of pressure self-charging excitation ) 是由 孙冠群 陶俊 李梅 于 2019-08-20 设计创作，主要内容包括：一种电容直升压自充电励磁的开关磁阻发电机变流系统,由蓄电池、五个开关管、三相绕组、七个二极管、六个电容器、直流隔离变压器、两个电感组成,依靠仅有的五个可控开关管的调控,实现了输出端发电电压的直接抬升,解决了蓄电池的自动可调充电,简化了结构,可靠性高,适应性强,仅有第五开关管为高频PWM模式,总体损耗低；适合于各类中小功率的开关磁阻发电机系统领域应用。(A kind of capacitor goes straight up to the switch reluctance generator converter system of pressure self-charging excitation, it is made of battery, five switching tubes, three-phase windings, seven diodes, six capacitors, DC isolation transformer, two inductance, by the regulation of only five controlled tr tubes, the direct lifting for realizing output end generating voltage solves the automatic adjustable charging of battery, simplifies structure, high reliablity, adaptable, only the 5th switching tube is high-frequency PWM mode, and overall loss is low；It is suitable for the switch reluctance generator system field application of all kinds of middle low powers.)

1. a kind of capacitor go straight up to pressure self-charging excitation switch reluctance generator converter system, characterized in that include: battery, First switch tube, second switch, third switching tube, the 4th switching tube, the 5th switching tube, the first phase winding, the second phase winding, Third phase winding, first diode, the second diode, third diode, the 4th diode, the 5th diode, the 6th diode, 7th diode, first capacitor device, the second capacitor, third capacitor, the 4th capacitor, the 5th capacitor, the 6th capacitor, DC isolation transformer, the first inductance, the second inductance, the battery positive voltage connect the first switch tube anode, described the Two switch tube anodes, the third switch tube anode, the 7th diode cathode, battery terminal negative connection the 4th switch Tube cathode, first capacitor device one end, second diode cathode, second inductance one end, first switch tube cathode First phase winding one end is connected, second switch tube cathode connects second phase winding one end, and third switchs tube cathode and connects Third phase winding one end is connect, the first phase winding other end connects the second phase winding other end, the third phase winding other end, institute First diode anode, second capacitor one end, the 4th switch tube anode are stated, first diode cathode connects first capacitor The device other end, the third diode anode, third capacitor one end, third diode cathode connect the four or two pole Tube anode, described 4th capacitor one end, described 5th capacitor one end, the third capacitor other end connect the 4th diode yin Pole, the 5th diode anode, it is defeated that the 5th diode cathode connects the 4th capacitor other end, the DC isolation transformer Enter positive terminal, it is defeated that the 5th capacitor other end connects the second diode anode, the second capacitor other end, DC isolation transformer Entering negative pole end, DC isolation transformer output cathode end connects the 6th diode cathode, first inductance one end, and the 6th Diode anode connects the second inductance other end, described 6th capacitor one end, and the first inductance other end connects the 6th capacitor The other end, the 5th switch tube anode, DC isolation transformer output negative pole end connect the 7th diode anode, the 5th switch Tube cathode；

First capacitor device, the second capacitor, third capacitor, the 4th condenser capacity are equal, and are equal to the 5th capacitor electricity The half of capacity；DC isolation transformer fixes no-load voltage ratio, and its output end voltage is less than input terminal voltage.

2. the control that a kind of capacitor according to claim 1 goes straight up to the switch reluctance generator converter system of pressure self-charging excitation Method processed, characterized in that in switch reluctance generator operation, according to rotor position information, when the first phase winding need to devote oneself to work When, first switch tube and the 4th switching tube are closed at, and into the excitation stage, are terminated according to the rotor position information excitation stage When, disconnect the 4th switching tube, into power generating stage, according to rotor position information power generating stage at the end of disconnect first switch tube, The work of first phase winding terminates；When second phase winding, third phase winding need to devote oneself to work, operating mode and the first phase winding phase Together, second switch, third switching tube correspond to first switch tube；

When detecting accumulator electric-quantity lower than lower limit value, the 5th switching tube works according to PWM mode, the specific big rootlet of duty ratio It is determined according to charging voltage needed for battery and electric current, when accumulator electric-quantity reaches upper limit value, is fully disconnected the 5th switching tube.

Technical field

The present invention relates to switched reluctance motor system fields, and in particular to a kind of capacitive direct boosting of few switching tube, from The switch reluctance generator converter system and its control method of dynamic charging excitation.

Background technique

Switched reluctance machines structure simple rigid is at low cost, and rotor is without winding without conducting bar no current, and heat dissipation is convenient, as hair Motor application also has broad application prospects, and still, be unable to do without high performance converter system, converter system is its operation hair The heart of electricity.

Structure, complexity, reliability, the adaptability of switch reluctance generator converter system are the key that its performances, for The dosage of switching tube, the more few then relative reliability of switching tube quantity is higher, easier, and convertor circuit structure is simpler, then reliably Property it is higher, especially most of occasions need to be lifted after unsteady flow the demand of voltage, as can integration is realized, then certainly will have preferable Adaptability.

The field power supply advantage that battery serves as switch reluctance generator is obvious, and excitation voltage and electric current are relatively stable, right The torque pulsation of switched reluctance machines also has certain inhibiting effect, but accumulator electric-quantity is limited, as can have automatic charging function, Its adaptability and reliability certainly will then be promoted.

Summary of the invention

According to above background technique, present invention proposes a kind of to go straight up to that pressure, switching tube quantity are few, store by capacitor Battery automatic charging and the switch reluctance generator converter system and its control method for only needing a switching tube regulation charging, are fitted It is applied in switch reluctance generator system for all kinds of middle low powers.

The technical solution of the present invention is as follows:

A kind of capacitor goes straight up to the switch reluctance generator converter system of pressure self-charging excitation, characterized in that includes: electric power storage Pond, first switch tube, second switch, third switching tube, the 4th switching tube, the 5th switching tube, the first phase winding, the second phase around Group, third phase winding, first diode, the second diode, third diode, the 4th diode, the 5th diode, the six or two pole Pipe, the 7th diode, first capacitor device, the second capacitor, third capacitor, the 4th capacitor, the 5th capacitor, the 6th capacitor Device, DC isolation transformer, the first inductance, the second inductance, the battery positive voltage connect the first switch tube anode, described Second switch tube anode, the third switch tube anode, the 7th diode cathode, and battery terminal negative connection the described 4th is opened Close tube cathode, first capacitor device one end, second diode cathode, second inductance one end, first switch tube yin Pole connects first phase winding one end, and second switch tube cathode connects second phase winding one end, and third switchs tube cathode Connect third phase winding one end, the first phase winding other end connect the second phase winding other end, the third phase winding other end, The first diode anode, second capacitor one end, the 4th switch tube anode, the first electricity of first diode cathode connection The container other end, the third diode anode, third capacitor one end, third diode cathode connection the described 4th 2 Pole pipe anode, described 4th capacitor one end, described 5th capacitor one end, the third capacitor other end connect the 4th diode Cathode, the 5th diode anode, the 5th diode cathode connect the 4th capacitor other end, the DC isolation transformer Positive terminal is inputted, the 5th capacitor other end connects the second diode anode, the second capacitor other end, DC isolation transformer Negative pole end is inputted, DC isolation transformer output cathode end connects the 6th diode cathode, first inductance one end, the Six diode anodes connect the second inductance other end, described 6th capacitor one end, and the first inductance other end connects the 6th capacitor The device other end, the 5th switch tube anode, the 7th diode anode of DC isolation transformer output negative pole end connection, the 5th open Close tube cathode；

First capacitor device, the second capacitor, third capacitor, the 4th condenser capacity are equal, and are equal to the 5th capacitor The half of device capacitance；DC isolation transformer fixes no-load voltage ratio, and its output end voltage is less than input terminal voltage.

A kind of capacitor goes straight up to the control method of the switch reluctance generator converter system of pressure self-charging excitation, characterized in that In switch reluctance generator operation, according to rotor position information, when the first phase winding need to devote oneself to work, first switch tube and the Four switching tubes are closed at, and into the excitation stage, at the end of the rotor position information excitation stage, disconnect the 4th switching tube, Into power generating stage, according to rotor position information power generating stage at the end of disconnect first switch tube, the work of the first phase winding terminates； When second phase winding, third phase winding need to devote oneself to work, operating mode is identical as the first phase winding, and second switch, third are opened It closes pipe and corresponds to first switch tube；

When detecting accumulator electric-quantity lower than lower limit value, the 5th switching tube works according to PWM mode, and specific duty ratio is big The small charging voltage according to needed for battery and electric current determine, when accumulator electric-quantity reaches upper limit value, are fully disconnected the 5th switch Pipe.

Technical effect of the invention mainly has:

(1) it after generator issues electric energy, in most of applications, generally requires first to be lifted voltage, that is, needs special Booster system boosting, is then available to power load or is incorporated to electric power networks, switch reluctance generator unsteady flow system of the invention Structure of uniting directly will switch under the action of the 4th switching tube and first capacitor device, the second capacitor, third capacitor etc. The output DC voltage of reluctance generator is raised, and eliminates intermediate link, while required switching tube quantity is few, lower than tradition The structure of average every at least two switching tube of phase winding under structure；Battery serves as field power supply, and charging excitation is relatively stable.

(2) in battery short of electricity automatic charging, it is thus only necessary to which the high-frequency PWM regulation of the 5th switching tube can be completed Charging, adjusts its duty ratio to adapt to battery needs, so, based under the above structure, it is equivalent to and relies solely on five switches The high performance switch reluctance generator converter system that pipe can be completed automatic charging excitation, directly boost, simplifies structure and control Complexity processed, improves reliability；Due to the high-frequency work of charging system, DC isolation volume of transformer weight cost compared with It is low.

Detailed description of the invention

Fig. 1 show the switch reluctance generator converter system circuit that a kind of capacitor of the invention goes straight up to pressure self-charging excitation Structure chart.

Specific embodiment

A kind of capacitor of the present embodiment goes straight up to the switch reluctance generator converter system of pressure self-charging excitation, converter system electricity Line structure is as shown in Fig. 1, by battery X, first switch tube V1, second switch V2, third switching tube V3, the 4th switch Pipe V4, the 5th switching tube V5, the first phase winding M, the second phase winding N, third phase winding P, first diode D1, the second diode D2, third diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6, the 7th diode D7, first capacitor Device C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, direct current every From transformer, the first inductance L1, the second inductance L2, battery X anode connects first switch tube V1 anode, second switch V2 sun Pole, third switching tube V3 anode, the 7th diode D7 cathode, battery X cathode connect the 4th switching tube V4 cathode, first capacitor The one end device C1, the second diode D2 cathode, second one end inductance L2, first switch tube V1 cathode connect first one end phase winding M, Second one end phase winding N of second switch V2 cathode connection, third switching tube V3 cathode connection one end third phase winding P, first The phase winding M other end connects the second phase winding N other end, the third phase winding P other end, first diode D1 anode, the second electricity The one end container C2, the 4th switching tube V4 anode, first diode D1 cathode connect the first capacitor device C1 other end, third diode D3 anode, the one end third capacitor C3, third diode D3 cathode connect the 4th diode D4 anode, the 4th capacitor C4 mono- End, the 5th one end capacitor C5, the third capacitor C3 other end connect the 4th diode D4 cathode, the 5th diode D5 anode, 5th diode D5 cathode connects the 4th capacitor C4 other end, DC isolation transformer inputs positive terminal, the 5th capacitor C5 The other end connect the second diode D2 anode, the second capacitor C2 other end, DC isolation transformer input negative pole end, direct current every The 6th diode D6 cathode, first one end inductance L1, the 6th diode D6 anode connection the are connected from transformer output cathode end The two inductance L2 other ends, the 6th one end capacitor C6, the 6th capacitor C6 other end of first inductance L1 other end connection, the 5th open Pipe V5 anode is closed, DC isolation transformer output negative pole end connects the 7th diode D7 anode, the 5th switching tube V5 cathode；Series connection The 4th capacitor C4 and the 5th both ends capacitor C5 be switch reluctance generator of the present invention power generation output both ends, as generate electricity Voltage output end.

First capacitor device C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4 capacitance are equal, and are equal to The half of 5th capacitor C5 capacitance；DC isolation transformer has electromagnetic isolation and transformation function, fixed no-load voltage ratio when transformation, And its output end voltage is 1/5th of its input terminal voltage；Each switching tube is full-control type power electronic derailing switch Part.

A kind of capacitor of the present embodiment goes straight up to the control method of the switch reluctance generator converter system of pressure self-charging excitation, opens Close reluctance generator operation in, according to rotor position information, when the first phase winding M need to devote oneself to work, first switch tube V1 and 4th switching tube V4 is closed at conducting, and into the excitation stage, battery X is through first switch tube V1 and the 4th switching tube V4 to One phase winding M for electrical excitation, meanwhile, the energy storage (power generating stage of first capacitor device C1, the second capacitor C2, third capacitor C3 By energy storage) it connects to the 4th capacitor C4 and the 5th capacitor C5 release i.e. external power generation output (first diode D1, the two or two Pole pipe D2, the 4th diode D4 cut-off), specific circuit has: C2-V4-C1-C3-D5-C4-C5-C2, C2-V4-C1-D3-C5- C2；At the end of the rotor position information excitation stage, the 4th switching tube V4 (first switch tube V1 maintains closure) is disconnected, is entered Power generating stage, the energy storage of the first phase winding M at this time, together to first capacitor device C1, the second capacitor C2 after connecting with battery X Equal charge storages, specific circuit have: the aforementioned circuit (C1/C2/ of X-V1-M-D1-C1-X, X-V1-M-C2-D2-X, C5-D4-C3- D1/D2)-C5；Disconnect first switch tube V1 at the end of according to rotor position information power generating stage again, the first phase winding M work immediately Work terminates；According to rotor position information, when the second phase winding N, third phase winding P need to devote oneself to work, operating mode and first Phase winding M is identical, in which: and second switch V2, third switching tube V3 correspond to first switch tube V1, remaining device shares, Function is identical.

When detecting battery X electricity lower than lower limit value, the 5th switching tube V5 starts to work according to high-frequency PWM mode, Specific duty ratio size charging voltage according to needed for battery X and electric current determine, when the 5th switching tube V5 closure, the 6th capacitor The first inductance L1 and the second inductance L2 is electrically charged simultaneously for device C6 electric discharge, the 6th diode D6 cut-off, when the 5th switching tube V5 is disconnected 6th capacitor C6 is electrically charged and the first inductance L1 and the second inductance L2 electric discharge, and the 7th diode D7 conducting provides anti-in overall process Polar continuous output current gives battery X, when battery X electricity reaches upper limit value, then is fully disconnected the 5th switching tube V5.

From structure of the invention as it can be seen that switch reluctance generator for different phase winding numbers, only increase and decrease phase winding and with Its concatenated switching tube branch, control model is identical, so the present invention should send out the switching magnetic-resistance of any number of phases Motor all has protection qualification.