阅读说明：本技术 稳压永磁发电机组 (Voltage-stabilizing permanent magnet generator set ) 是由 孙昊 于 2019-10-25 设计创作，主要内容包括：本发明公开一种稳压永磁发电机组,包括测量电路、主电源电路、控制电路、步进电机以及发电机装置；所述测量电路用于在所述发电机组的输出电压波动达到预定范围,向所述控制电路输出电压波动信号,使控制电路输出控制信号,控制所述发电机装置的转子的转速。所述的稳压永磁发电机组通过控制转子的转速来调整其输出电压,从而使发电机装置能够给负载提供稳定的电压。(The invention discloses a voltage-stabilizing permanent magnet generator set, which comprises a measuring circuit, a main power supply circuit, a control circuit, a stepping motor and a generator device, wherein the measuring circuit is connected with the main power supply circuit; the measuring circuit is used for outputting a voltage fluctuation signal to the control circuit when the output voltage fluctuation of the generator set reaches a preset range, so that the control circuit outputs a control signal to control the rotating speed of a rotor of the generator device. The voltage-stabilizing permanent magnet generator set adjusts the output voltage of the generator set by controlling the rotating speed of the rotor, so that the generator set can provide stable voltage for a load.)

1. A voltage stabilization permanent magnet generator set is characterized in that: the device comprises a measuring circuit, a main power circuit, a control circuit, a stepping motor and a generator device;

the control circuit comprises a control input end, a main power supply input end and a control output end, the measuring circuit comprises a main power supply input end, a detection input end and an output end, and the main power supply circuit comprises a first output end and a second output end; the control input end of the control circuit is connected with the output end of the measuring circuit, the main power supply input end of the control circuit is connected with the second output end of the main power supply circuit, the control output end of the control circuit is connected with the stepping motor, the output end of the stepping motor is connected with the generator device, the stepping motor is connected with the generator device through a coupler or a speed reducer, the first output end of the main power supply circuit is connected with the main power supply input end of the measuring circuit, and the detection input end of the measuring circuit is connected with the voltage output end of the generator device;

the measuring circuit is used for outputting a voltage fluctuation signal to the control circuit when the output voltage fluctuation of the generator set reaches a preset range, so that the control circuit outputs a control signal to control the rotating speed of the rotor of the generator device.

2. The voltage-stabilizing permanent magnet generator set according to claim 1, wherein: the control circuit includes microcontroller, microcontroller includes first output, second output, third output and fourth output, control circuit still includes first triode, second triode, third triode and fourth triode, microcontroller's first output is connected to the base of first triode, and microcontroller's second output is connected to the base of second triode, and microcontroller's second output is connected to the base of third triode, and microcontroller's fourth output is connected to the base of fourth triode, the collecting electrode of first triode, second triode, third triode and fourth triode all is connected step motor, the equal ground connection of projecting pole.

3. The voltage-stabilizing permanent magnet generator set according to claim 1, wherein: the rotating speed of a rotor on the generator device is increased according to a certain proportion along with the increase of the load;

the rotor of the generator device has a rotation speed of 50.5% at no load and 52.5% at full load.

4. The voltage-stabilizing permanent magnet generator set according to claim 1, wherein: the stepping motor comprises four working modes, specifically high-speed forward rotation, low-speed reverse rotation and high-speed reverse rotation.

5. The voltage-stabilizing permanent magnet generator set according to claim 1, wherein: the generator device also comprises a compensation capacitor.

Technical Field

The invention relates to a circuit, in particular to a voltage-stabilizing permanent magnet generator set.

Background

The generator is widely used in various industries of society as a standby power supply, generally comprises a nail at the periphery and a rotor rotating in a stator, wherein the rotor is provided with an excitation device coil or a permanent magnet material, when a power source rotates the rotor, the coil on the stator cuts a rotor magnetic field, so that the coil on the stator generates voltage, a driving power source on the rotor is changed, and the output voltage of the stator, namely the generator, can be changed.

The magnetism of an excitation device or a permanent magnet material on the rotor is generally unchanged, the magnetic field cannot be adjusted, and when the generator is loaded, the output voltage of the generator is at the maximum under the condition of no load; when the load is increased and is fully loaded, the output voltage of the load is reduced, the output voltage fluctuates due to the change of the load, and the situation that the load cannot normally run due to the voltage fluctuation influences the work of people.

Disclosure of Invention

The invention mainly solves the technical problem of providing a voltage-stabilizing permanent magnet generator set which can adjust the output voltage of the generator set, improve the voltage output efficiency and reduce the energy consumption.

In order to solve the technical problems, the invention adopts a technical scheme that: the voltage-stabilizing permanent magnet generator set comprises a measuring circuit, a main power supply circuit, a control circuit, a stepping motor and a generator device; the control circuit comprises a control input end, a main power supply input end and a control output end, the measuring circuit comprises a main power supply input end, a detection input end and an output end, and the main power supply circuit comprises a first output end and a second output end; the control input end of the control circuit is connected with the output end of the measuring circuit, the main power supply input end of the control circuit is connected with the second output end of the main power supply circuit, the control output end of the control circuit is connected with the stepping motor, the output end of the stepping motor is connected with the generator device, the first output end of the main power supply circuit is connected with the main power supply input end of the measuring circuit, and the detection input end of the measuring circuit is connected with the voltage output end of the generator device; the measuring circuit is used for outputting a voltage fluctuation signal to the control circuit when the output voltage fluctuation of the generator set exceeds a preset range, so that the control circuit outputs a control signal to control the rotating speed of the rotor of the generator device.

The invention has the beneficial effects that: different from the generator device in the prior art, when the load on the generator device changes, the rotating speed of the rotor on the generator device is the fastest when the generator device is unloaded, and the rotating speed of the rotor on the generator device is reduced when the generator device is fully loaded, which causes the output voltage of the generator device to be unstable, thereby affecting the normal use of the load. In the invention, the measuring circuit is used for measuring whether the output voltage of the generator device fluctuates or not, and if the fluctuation of the output voltage exceeds a preset range, the control circuit controls the stepping motor, so that the rotating speed of a rotor on the generator device is controlled, the output voltage of the generator device can be kept in a relatively stable range, the normal work of a load is ensured, the working efficiency of the load is improved, and the energy consumption of the load is reduced.

In the invention, the control circuit comprises a microcontroller, the microcontroller comprises a first output end, a second output end, a third output end and a fourth output end, the control circuit further comprises a first triode, a second triode, a third triode and a fourth triode, the base of the first triode is connected with the first output end of the microcontroller, the base of the second triode is connected with the second output end of the microcontroller, the base of the third triode is connected with the second output end of the microcontroller, the base of the fourth triode is connected with the fourth output end of the microcontroller, the collecting electrodes of the first triode, the second triode, the third triode and the fourth triode are all connected with the stepping motor, and the emitting electrodes are all grounded. The circuit structure of the control circuit controls the forward rotation and the reverse rotation of the stepping motor, thereby achieving the purpose of controlling the rotating speed of the rotor of the generator device, keeping the output voltage of the generator device relatively stable and enabling the load to be in a stable working state.

Specifically, the rotating speed of a rotor on the generator device is increased according to a certain proportion along with the increase of the load; the rotor of the generator device has a rotation speed of 50.5% at no load and 52.5% at full load.

Specifically, the stepping motor comprises four working modes, specifically, high-speed forward rotation, low-speed reverse rotation and high-speed reverse rotation

In a modified embodiment of the present invention, the generator device further includes a compensation capacitor. Inductive loads are generally used in the prior art, but the inductive loads are demagnetized seriously, so that compensation capacitance compensation needs to be applied, and a tap compensation mode is also used in the prior art for compensation, and the compensation mode is relatively high in requirement and is generally used in military design.

Drawings

Fig. 1 is a system structure block diagram of the voltage-stabilizing permanent magnet generator set of the invention;

generator device 1 measuring circuit 2 main power circuit 3 control circuit 4 stepping motor 5

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1, a system structure diagram of a voltage stabilization permanent magnet generator set according to the present invention is shown, where the voltage stabilization permanent magnet generator set includes a measurement circuit 2, a main power circuit 3, a control circuit 4, a stepping motor 5, and a generator device 1; the control circuit 4 comprises a control input end, a main power input end and a control output end, the measuring circuit 2 comprises a power input end, a detection input end and an output end, and the main power circuit 3 comprises a first output end and a second output end; the control input end of the control circuit 4 is connected with the output end of the measuring circuit 2, the main power input end of the control circuit 4 is connected with the second output end of the main power circuit 3, the control output end of the control circuit 4 is connected with the stepping motor 5, the output end of the stepping motor 5 is connected with the generator device 1, the first output end of the main power circuit 3 is connected with the main power input end of the measuring circuit 2, and the detection input end of the measuring circuit 2 is connected with the voltage output end of the generator device 1; the power input end of the measuring circuit 2 is connected with the first output end of the main power circuit 3, and the measuring circuit 2 is used for outputting a voltage fluctuation signal to the control circuit 4 when the output voltage fluctuation of the generator set exceeds a preset range, so that the control circuit 4 outputs a control signal to control the rotating speed of the rotor of the generator device 1.

Different from the situation that the output voltage is unstable due to the fact that the rotating speed of the rotor of the generator device 1 changes when the load changes in the prior art, the voltage-stabilizing permanent magnet generator set measures the output voltage of the generator device 1 through the measuring circuit 2, and when the measuring circuit 2 detects that the output voltage fluctuation of the generator set exceeds a preset range, a voltage fluctuation signal is output to the control circuit 4, so that the control circuit 4 outputs a control signal to control the rotating speed of the rotor of the generator device 1. Specifically, the control circuit 4 controls the stepping motor 5 in such a way that the control circuit 4 receives the voltage detection signal of the measurement circuit 2 and compares the voltage detection signal with a preset range preset in the control circuit 4, when the output voltage of the generator device 1 exceeds the preset range to a large extent, the control circuit 4 controls the stepping motor 5 to rotate reversely at a high speed so as to enable the output voltage to be stabilized within the preset range, when the output voltage of the generator device 1 exceeds the preset range to a small extent, the control circuit 4 controls the stepping motor 5 to rotate reversely at a low speed, and when the output voltage of the generator device 1 is lower than the preset range to a large extent, the control circuit 4 controls the stepping motor 5 to rotate forwardly at a high speed so as to enable the output voltage to be restored to the preset range as soon as possible, when the output voltage of the generator device 1 is lower than the predetermined range, the control circuit 4 controls the stepping motor 5 to rotate reversely at a slow speed, so that the output voltage of the generator device 1 is restored to the predetermined range.

A circuit diagram of an embodiment of the control circuit 4 according to the present invention, wherein the control circuit 4 comprises a microcontroller, the microcontroller comprises a first output terminal OUT1, a second output terminal OUT2, a third output terminal OUT3 and a fourth output terminal OUT4, the control circuit 4 further comprises a first triode Q2, a second triode Q3, a third triode Q4 and a fourth triode Q5, the base of the first triode Q2 is connected to the first output terminal OUT1 of the microcontroller, the base of the second triode Q3 is connected to the second output terminal OUT2 of the microcontroller, the base of the third triode Q4 is connected to the third output terminal OUT3 of the microcontroller, the base of the fourth triode Q5 is connected to the fourth output terminal OUT4 of the microcontroller, the collectors of the first triode Q2, the second triode Q3, the third triode Q4 and the fourth triode Q5 are connected to the stepper motor 5, the emitters are all grounded. The control circuit 4 controls the stepping motor 5 to rotate in the forward and reverse directions, so as to control the rotation speed of the rotor of the generator device 1, keep the output voltage of the generator device 1 relatively stable, and enable the load to be in a stable working state.

In the technical scheme of the invention, the control circuit 4 is used for controlling the on and off of the first triode Q2, the second triode Q3, the third triode Q4 and the fourth triode Q5, so that the rotating speed of the rotor on the generator device 1 is increased according to a certain proportion along with the increase of the load; the rotor of the generator device 1 has a rotational speed of 50.5% at no load and 52.5% at full load. In the conventional technical solution, the rotation speed of the rotor of the generator device 1 is reduced along with the increase of the load, so that the output voltage is reduced, and in the technical solution of the present invention, contrary to the conventional technical solution, the rotation speed is 50.5% at the time of no load and 52.5% at the time of full load, and the rotation speed of the rotor is increased along with the increase of the load, so that the output voltage is increased, the output voltage can be kept in a stable range, and the load can be kept in a stable working range.

In one embodiment of the present invention, the measuring circuit 2 includes a current limiting resistor R4, a transformer T1 and a triode Q1, a base of the triode Q1 is connected to a positive terminal of a secondary coil of the transformer, an emitter of the transformer is connected to a negative terminal of the secondary coil of the transformer, a collector of a triode Q1 is connected to a control input terminal of the control circuit 4, an output voltage of the generator apparatus 1 is current-limited after passing through the current limiting resistor R4 and then converted into a voltage through the transformer T1, after the voltage passing through the transformer T1 passes through the triode Q1, since the output voltage of the generator apparatus 1 is changed, the triode Q1 is turned on and off, the control circuit 4 detects the change of the voltage and compares the change with a predetermined voltage range in a microcontroller of the control circuit 4, therefore, the change of the output voltage of the generator device 1 is detected, in the present technical solution, only the circuit structure diagram of the measuring circuit 2 is described, and the circuit structure diagrams of other forms are not described herein again.

In a modified embodiment of the present invention, the generator device 1 further comprises a compensation capacitor. Inductive loads are generally used in the prior art, but the inductive loads are demagnetized more, so that compensation capacitance compensation is applied to reduce the defect of demagnetization, so that the generator device 1 can provide a stable power supply. In the prior art, a tap compensation mode is also used for compensation, and the compensation mode has relatively high requirements and is generally used in military design.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.