WO2023279747A1 - 一种电机控制器及应用其的电机 - Google Patents

一种电机控制器及应用其的电机 Download PDF

Info

Publication number
WO2023279747A1
WO2023279747A1 PCT/CN2022/079848 CN2022079848W WO2023279747A1 WO 2023279747 A1 WO2023279747 A1 WO 2023279747A1 CN 2022079848 W CN2022079848 W CN 2022079848W WO 2023279747 A1 WO2023279747 A1 WO 2023279747A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
power supply
motor controller
capacitor
switch tube
Prior art date
Application number
PCT/CN2022/079848
Other languages
English (en)
French (fr)
Inventor
韦荣星
孙海荣
陈云生
Original Assignee
中山大洋电机股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Publication of WO2023279747A1 publication Critical patent/WO2023279747A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation

Definitions

  • the utility model relates to a motor controller and a motor using the controller.
  • the motor controller includes a power supply circuit, a microprocessor MCU, an inverter circuit and a drive circuit, and the power supply circuit supplies power for the microprocessor MCU, the inverter circuit and the drive circuit.
  • the power supply circuit outputs a variety of power supplies with different voltages, they are all non-isolated single-channel power supplies. Instantaneous overcurrent or voltage fluctuations will directly affect the drive circuit, resulting in control failure. unstable.
  • the inverter circuit consists of a bridge arm composed of IGBT/MOS and other switching tubes, which requires working power.
  • the commonly used method is to obtain the required working power by stepping down the BUCK circuit, and the high-voltage side of the driving circuit is isolated.
  • Drive generally use the bootstrap circuit to complete the electric energy storage to supply power to the switch tube of the upper bridge, and complete the power supply for the entire motor drive.
  • this power supply method has the following disadvantages:
  • the bootstrap circuit shown in Figure 3 has a simple structure and poor stability.
  • the driving power of the upper bridge switching tube Q2 is turned on by releasing the capacitor C3.
  • the duty cycle of the switching tube Q3 will directly affect the charging of the capacitor C3.
  • the switching tube will Q2 cannot be turned on, or in the low-voltage turned-on state, the driving capability of the switch tube Q2 will be insufficient and the voltage drop will be large, the power consumption will increase sharply, and there is a risk of failure.
  • the purpose of this utility model is to provide a motor controller and a motor using it, which can solve the problem that the motor controller in the prior art uses a single power supply non-isolated power supply, and instantaneous overcurrent or voltage fluctuations will directly affect IGBT/MOS.
  • the operation of the driving circuit of the switch tube causes the technical problem of unstable control of the IGBT/MOS switch tube.
  • a motor controller comprising a power supply circuit, a microprocessor MCU, an inverter circuit and a drive circuit
  • the power supply circuit supplies power to the microprocessor MCU, the inverter circuit and the drive circuit
  • the power supply circuit includes a rectifier circuit And single-ended flyback DC-DC conversion circuit
  • the mains AC input is connected to the input end of the rectification circuit
  • the output end of the rectification circuit is connected to the single-ended flyback DC-DC conversion circuit
  • the single-ended flyback DC-DC conversion The circuit outputs multiple isolated power supplies to supply power to the subsequent microprocessor MCU, inverter circuit and drive circuit.
  • the above-mentioned single-ended flyback DC-DC conversion circuit includes a transformer T2, an electronic switching tube Q6 and a pulse generator.
  • the primary coil L1 of the transformer T2 is connected in series with the electronic switching tube Q6, and one end is grounded, and the other end is connected to the input DC power supply VDC , the control end of the electronic switch tube Q6 is connected to the output end of the pulse generator, and the transformer T2 contains multiple secondary coils L2 to form a multi-channel isolated power supply.
  • Each isolated power supply described above includes a secondary coil L2, diode D3, Zener diode ZD1 and capacitor C4, one end of the secondary coil L2 is grounded to GND, the other end of the secondary coil L2 is connected to the positive end of the diode D3, and the diode The negative end of D3 is connected to one end of capacitor C4, the other end of capacitor C4 is grounded, and the two ends of capacitor C4 are connected in parallel with Zener diode ZD1.
  • a discharge resistor R1 is also connected in parallel to both ends of the capacitor C4.
  • a voltage clamping circuit is connected in parallel to both ends of the above-mentioned primary coil L1.
  • the voltage clamping circuit includes a resistor R0, a capacitor C0 and a diode D0.
  • the resistor R0 and the capacitor C0 are connected in parallel and then the diode D0 is connected in series.
  • the magnitude of the output voltage of each isolated power supply mentioned above is set by adjusting the ratio of the number of turns of the primary coil L1 and the secondary coil L2 of the transformer T2.
  • the above-mentioned inverter circuit contains a plurality of bridge arms, and each bridge arm includes an upper bridge switch tube Q4 and a lower bridge switch tube Q5, and the output signal of the microprocessor MCU controls a driving circuit to drive the upper bridge switch tube Q4 and the lower bridge switch tube Q5, one of the isolated power supplies outputs a DC voltage VCC to supply power to the driving circuit, and the upper bridge switching tube Q4 of each bridge arm is driven by an independent isolated power supply outputting a DC voltage VCC1.
  • connection point A between the upper bridge switch tube Q4 and the lower bridge switch tube Q5 is drawn out and connected to the ground GND1, the DC voltage VCC1 is connected to one end of the capacitor C6, the other end of the capacitor C6 is grounded to GND1, and the two inputs of the drive circuit
  • the pins are connected to both ends of the capacitor C6, and the output terminal of the drive circuit controls the upper bridge switch tube Q4.
  • the above-mentioned inverter circuit contains 3 bridge arms, and there are 5 isolated power supplies in total, of which 1 isolated power supply outputs DC voltage VCC to supply power to the drive circuit, and 3 isolated power supplies output DC voltage VCC1 to supply power to the 3 bridge arms respectively.
  • One isolated power supply outputs power supply VCC2, and the power supply VCC2 supplies power to the microprocessor MCU after passing through a step-down regulator circuit.
  • a motor including a stator, a rotor, a casing and a motor controller, is characterized in that: the motor controller adopts the above-mentioned motor controller.
  • the motor controller of the present utility model includes a power supply circuit, a microprocessor MCU, an inverter circuit and a drive circuit, and the power supply circuit supplies power for the microprocessor MCU, the inverter circuit and the drive circuit, and is characterized in that: the power supply circuit It includes a rectifier circuit and a single-ended flyback DC-DC conversion circuit. The mains AC input is connected to the input end of the rectification circuit. -DC conversion circuit generates multiple isolated power supplies to supply power for the subsequent microprocessor MCU, inverter circuit and drive circuit. Instantaneous overcurrent or voltage fluctuation has little effect on multiple isolated power supplies, ensuring the stability of IGBT/MOS switch tube control and reliability.
  • Fig. 1 is the circuit block diagram of the motor controller in the prior art
  • Fig. 2 is the block diagram of the power supply circuit of the motor controller in the prior art
  • Fig. 3 is the power drive block diagram of the bridge arm of inverter circuit in the prior art
  • Fig. 4 is the circuit block diagram of the utility model embodiment one;
  • Fig. 5 is a circuit diagram of a single-ended flyback DC-DC conversion circuit in Embodiment 1 of the utility model
  • Fig. 6 is a circuit diagram of the power supply of the bridge arm of the inverter circuit according to the first embodiment of the present invention.
  • a motor controller including a power supply circuit, a microprocessor MCU, an inverter circuit and a drive circuit
  • the power supply circuit is a microprocessor MCU
  • the inverter circuit and the driving circuit supply power
  • the feature is that: the power supply circuit includes a rectification circuit and a single-ended flyback DC-DC conversion circuit, the AC input of the mains is connected to the input end of the rectification circuit, and the output end of the rectification circuit is connected to the single-end
  • the flyback DC-DC conversion circuit, the single-ended flyback DC-DC conversion circuit generates a multi-channel isolated power supply 200 to supply power for the subsequent microprocessor MCU, inverter circuit and drive circuit.
  • a surge protection circuit is also set between the mains AC input and the rectification circuit.
  • the motor represented by M in Figure 4 includes a stator, a rotor and a casing.
  • the Hall element HAll is used to sense the rotor position, and the signal is input through the rotor position measurement circuit.
  • to the microprocessor MCU and the microprocessor MCU outputs signals to the driving circuit to control the inverter circuit to work.
  • the inverter circuit has only three bridge arms used to drive the motor with three-phase windings.
  • the single-ended flyback DC-DC conversion circuit is referred to as the Flyback circuit.
  • the single-ended flyback DC-DC conversion circuit generates multiple isolated power supplies to supply power for the subsequent microprocessor MCU, inverter circuit and drive circuit. Instantaneous overcurrent or voltage fluctuations have little effect on the multi-channel isolated power supplies, ensuring IGBT/MOS The stability and reliability of the switch tube control.
  • the single-ended flyback DC-DC conversion circuit includes a transformer T2, an electronic switch tube Q6 and a pulse generator, the primary coil L1 of the transformer T2 is connected in series with the electronic switch tube Q6, and one end is grounded, and the other end is connected to the input DC power supply VDC, The control end of the electronic switch tube Q6 is connected to the output end of the pulse generator, and the transformer T2 includes multiple secondary coils L2 to form a multi-channel isolated power supply.
  • the output pulse of the pulse generator controls the operation of the electronic switch tube Q6.
  • Each isolated power supply includes a secondary coil L2, a diode D3, a Zener diode ZD1 and a capacitor C4, one end of the secondary coil L2 is grounded to GND, the other end of the secondary coil L2 is connected to the positive end of the diode D3, and the diode D3
  • the negative end of the capacitor C4 is connected to one end of the capacitor C4, the other end of the capacitor C4 is grounded, and the two ends of the capacitor C4 are connected in parallel with the Zener diode ZD1.
  • Zener diode ZD1 limits overvoltage, capacitor C4 outputs voltage and power;
  • a discharge resistor R1 is connected in parallel with both ends of the capacitor C4.
  • the two ends of the primary coil L1 are connected in parallel with a voltage clamping circuit.
  • the voltage clamping circuit includes a resistor R0, a capacitor C0 and a diode D0.
  • the resistor R0 and the capacitor C0 are connected in parallel and then the diode D0 is connected in series to limit the voltage of the primary coil L1. voltage across.
  • the output voltage of each isolated power supply is set by adjusting the ratio of turns between the primary coil L1 and the secondary coil L2 of the transformer T2, and the voltage regulation is simple and easy.
  • the inverter circuit includes a plurality of bridge arms 100, each bridge arm 100 includes an upper bridge switch tube Q4 and a lower bridge switch tube Q5, and the output signal of the microprocessor MCU controls a driving circuit to drive the upper bridge switch tube Q4 and the lower bridge switch tube Q4.
  • Simultaneously outputting the multi-channel isolated power supply 200 can provide continuous and stable power supply to the downstream microprocessor MCU, the switch tube of the bridge arm of the inverter circuit and the drive circuit independently, and the load fluctuation of any one way does not affect the work of other ways.
  • the multiple isolated power supplies 200 do not share a common ground.
  • connection point A between the upper bridge switch tube Q4 and the lower bridge switch tube Q5 is drawn out and connected to the ground GND1, the DC voltage VCC1 is connected to one end of the capacitor C6, the other end of the capacitor C6 is grounded to GND1, and the two inputs of the drive circuit
  • the pins are connected to both ends of the capacitor C6, and the output terminal of the drive circuit controls the upper bridge switch tube Q4.
  • the power supply directly charges C6 continuously, and the duty cycle of the lower bridge switch tube Q5 has no effect on capacitor C6, which solves the inevitable charging defect problem of the bootstrap circuit.
  • the lower bridge switching tube Q5 is driven by one of the isolated power sources 200 outputting a DC voltage VCC.
  • the above inverter circuit contains 3 bridge arms 100, and there are 5 isolated power supplies 200 in total, 1 of which outputs DC voltage VCC to supply power for the drive circuit, and 3 isolated power supplies 200 output DC voltage VCC1 respectively for 3 bridges
  • the arm 100 supplies power, and one isolated power supply 200 outputs a power supply VCC2, and the power supply VCC2 supplies power to the microprocessor MCU alone after passing through a step-down regulator circuit.
  • the step-down voltage regulator circuit can be completed by using a 78 series step-down chip, and VCC2 outputs +3.3V after passing through a step-down voltage regulator circuit to supply power to the microprocessor MCU alone.
  • a motor including a stator, a rotor, a casing, and a motor controller, characterized in that: the motor controller adopts the motor controller described in Embodiment 1, and a single-ended flyback DC-DC conversion circuit is used to generate multiple isolated power supplies It supplies power for the post-stage microprocessor MCU, inverter circuit and drive circuit. Instantaneous overcurrent or voltage fluctuation has little effect on multi-channel isolated power supply, ensuring the stability and reliability of IGBT/MOS switch tube control.

Abstract

提供了一种电机控制器及应用其的电机，包括电源供电电路、微处理器MCU、逆变电路和驱动电路,电源供电电路为微处理器MCU、逆变电路和驱动电路供电，电源供电电路包括整流电路和单端反激式DC-DC变换电路，市电交流输入连接到整流电路的输入端，整流电路的输出端连接单端反激式DC-DC变换电路，单端反激式DC-DC变换电路输出多路隔离电源(200)为后级微处理器MCU、逆变电路和驱动电路供电；瞬间过流或者电压波动对多路隔离电源影响不大，保证IGBT/MOS开关管控制的稳定性和可靠性。

Description

一种电机控制器及应用其的电机 技术领域：
本实用新型涉及一种电机控制器及应用其的电机。
背景技术：
目前电机控制器包括电源供电电路、微处理器MCU、逆变电路和驱动电路,电源供电电路为微处理器MCU、逆变电路和驱动电路供电。如图1、图2所示，而电源供电电路虽然输出多种不同电压的供电电源，但都是非隔离式的单路电源供应，瞬间过流或者电压波动时候会直接影响驱动电路，造成控制的不稳定。
另外，见图3所示，逆变电路由IGBT/MOS等开关管组成的桥臂，需要工作电源，常用的是BUCK电路降压方式取得所需要的工作电源，驱动电路应用高压侧都加隔离驱动，一般采用自举电路完成电能存储给上桥开关管供电，完成整个电机驱动电源供电。但这种电源供电方式存在如下缺点：
(1)图3的BUCK电路中，当VCC电路瞬间过流或者电压波动时候会直接影响驱动电路开关管Q1、开关管Q2等正常工作，单路电源都存在的缺陷。
(2)图3自举电路结构简单稳定性差，上桥开关管Q2的驱动电能靠电容C3释放来开通，开关管Q3占空比大小会直接影响电容C3充电，电压过低时会导致开关管Q2打不开,或者在低电压打开状态会形成开关管Q2驱动能力不足压降大，功耗急增，存在失效风险。
发明内容：
本实用新型的目的是提供一种电机控制器及应用其的电机，能解决现有技术中电机控制器中采用单路电源非隔离式供电，瞬间过流或者电压波动时候会直接影响IGBT/MOS开关管的驱动电路工作，造成IGBT/MOS开关管控制的不稳定的技术问题。
本实用新型的目的是通过下述技术方案予以实现的。
一种电机控制器，包括电源供电电路、微处理器MCU、逆变电路和驱动电路,电源供电电路为微处理器MCU、逆变电路和驱动电路供电，其特征在于：电 源供电电路包括整流电路和单端反激式DC-DC变换电路，市电交流输入连接到整流电路的输入端，整流电路的输出端连接单端反激式DC-DC变换电路，单端反激式DC-DC变换电路出多路隔离电源为后级微处理器MCU、逆变电路和驱动电路供电。
上述所述的单端反激式DC-DC变换电路包括变压器T2、电子开关管Q6和脉冲发生器，变压器T2的初级线圈L1与电子开关管Q6串联后一端接地，另一端接输入直流电源VDC，电子开关管Q6的控制端连接脉冲发生器的输出端，变压器T2含有多个次级线圈L2形成多路隔离电源。
上述所述的每路隔离电源包括一个次级线圈L2、二极管D3、稳压二极管ZD1和电容C4，次级线圈L2的一端接地GND，次级线圈L2的另一端接二极管D3的正极端，二极管D3的负极端接电容C4的一端，电容C4的另一端接地，电容C4的两端并联稳压二极管ZD1。
上述的电容C4的两端还并联一个放电电阻R1。
上述的初级线圈L1的两端并联一个电压钳位电路，所述的电压钳位电路包括电阻R0、电容C0和二极管D0，电阻R0和电容C0并联后再串联二极管D0。
上述的每路隔离电源的输出电压的大小通过调整变压器T2的初级线圈L1和次级线圈L2的匝数比例来设置。
上述的逆变电路含有多个桥臂，每个桥臂包括上桥开关管Q4和下桥开关管Q5，微处理器MCU输出信号控制一个驱动电路来驱动上桥开关管Q4和下桥开关管Q5，其中一路隔离电源输出直流电压VCC为驱动电路供电，每个桥臂的上桥开关管Q4由独立的一路隔离电源输出直流电压VCC1来驱动。
上述的上桥开关管Q4和下桥开关管Q5之间的连接点A引出并连接地GND1，直流电压VCC1连接到电容C6的一端，电容C6的另一端接地GND1，驱动电路的两个个输入引脚连接在电容C6的两端，驱动电路的输出端控制上桥开关管Q4。
上述的逆变电路含有3个桥臂，共有5路的隔离电源，其中1路隔离电源输出直流电压VCC为驱动电路供电，其中3路隔离电源输出直流电压VCC1分别 为3个桥臂供电，其中1路隔离电源输出电源VCC2，电源VCC2经过一个降压稳压电路后为微处理器MCU单独供电。
一种电机，包括定子、转子、机壳和电机控制器，其特征在于：电机控制器采用上述所述的电机控制器。
本实用新型与现有技术相比，具有如下效果：
1、本实用新型电机控制器，包括电源供电电路、微处理器MCU、逆变电路和驱动电路,电源供电电路为微处理器MCU、逆变电路和驱动电路供电，其特征在于：电源供电电路包括整流电路和单端反激式DC-DC变换电路，市电交流输入连接到整流电路的输入端，整流电路的输出端连接单端反激式DC-DC变换电路，单端反激式DC-DC变换电路出多路隔离电源为后级微处理器MCU、逆变电路和驱动电路供电，瞬间过流或者电压波动对多路隔离电源影响不大，保证IGBT/MOS开关管控制的稳定性和可靠性。
2、本实用新型的其它优点在实施例部分展开详细描述。
附图说明：
图1是现有技术中的电机控制器的电路方框图；
图2是现有技术中的电机控制器的电源供电电路的方框图；
图3是现有技术中逆变电路的桥臂的电源驱动方框图；
图4是本实用新型实施例一的电路方框图；
图5是本实用新型实施例一的单端反激式DC-DC变换电路的电路图；
图6是本实用新型实施例一的逆变电路的桥臂的电源供应的电路图。
具体实施方式：
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一:
如图4、图5和图6所示，本实施例提供的是一种电机控制器，包括电源供电电路、微处理器MCU、逆变电路和驱动电路,电源供电电路为微处理器MCU、逆变电路和驱动电路供电，其特征在于：电源供电电路包括整流电路和单端反 激式DC-DC变换电路，市电交流输入连接到整流电路的输入端，整流电路的输出端连接单端反激式DC-DC变换电路，单端反激式DC-DC变换电路出多路隔离电源200为后级微处理器MCU、逆变电路和驱动电路供电。在市电交流输入与整流电路之间还设置浪涌保护电路，图4中M表示的电机，电机包括定子、转子和外壳，利用霍尔元件HAll感应转子位置，通过转子位置测量电路将信号输入到微处理器MCU，微处理器MCU输出信号到驱动电路控制逆变电路工作。图4中逆变电路只有3个桥臂用来驱动三相绕组的电机。单端反激式DC-DC变换电路简称Flyback电路。单端反激式DC-DC变换电路出多路隔离电源为后级微处理器MCU、逆变电路和驱动电路供电，瞬间过流或者电压波动对多路隔离电源影响不大，保证IGBT/MOS开关管控制的稳定性和可靠性。
所述的单端反激式DC-DC变换电路包括变压器T2、电子开关管Q6和脉冲发生器，变压器T2的初级线圈L1与电子开关管Q6串联后一端接地，另一端接输入直流电源VDC，电子开关管Q6的控制端连接脉冲发生器的输出端，变压器T2含有多个次级线圈L2形成多路隔离电源。脉冲发生器的输出脉冲控制电子开关管Q6工作。
所述的每路隔离电源包括一个次级线圈L2、二极管D3、稳压二极管ZD1和电容C4，次级线圈L2的一端接地GND，次级线圈L2的另一端接二极管D3的正极端，二极管D3的负极端接电容C4的一端，电容C4的另一端接地，电容C4的两端并联稳压二极管ZD1。稳压二极管ZD1限制过压，电容C4输出电压与功率；
所述的电容C4的两端还并联一个放电电阻R1。
所述的初级线圈L1的两端并联一个电压钳位电路，所述的电压钳位电路包括电阻R0、电容C0和二极管D0，电阻R0和电容C0并联后再串联二极管D0，限制初级线圈L1的两端电压。
所述的每路隔离电源的输出电压的大小通过调整变压器T2的初级线圈L1和次级线圈L2的匝数比例来设置，调压简单容易。
所述的逆变电路含有多个桥臂100，每个桥臂100包括上桥开关管Q4和下桥开关管Q5，微处理器MCU输出信号控制一个驱动电路来驱动上桥开关管Q4和下桥开关管Q5，其中一路隔离电源200输出直流电压VCC为驱动电路供电，每个桥臂100的上桥开关管Q4由独立的一路隔离电源200输出直流电压VCC1来驱动。同时输出多路隔离电源200可以单独给后级微处理器MCU、逆变电路的桥臂的开关管和驱动电路持续稳定提供电源，任意一路负载波动不影响其它路工作。多路隔离电源200是不共地的。
上述的上桥开关管Q4和下桥开关管Q5之间的连接点A引出并连接地GND1，直流电压VCC1连接到电容C6的一端，电容C6的另一端接地GND1，驱动电路的两个个输入引脚连接在电容C6的两端，驱动电路的输出端控制上桥开关管Q4。无需自举电路，电源直接给C6持续充电，下桥开关管Q5占空比大小对电容C6无影响，解决了自举电路出现不可避免的充电缺陷问题。下桥开关管Q5由其中一路隔离电源200输出直流电压VCC来驱动。
上述的逆变电路含有3个桥臂100，共有5路的隔离电源200，其中1路隔离电源200输出直流电压VCC为驱动电路供电，其中3路隔离电源200输出直流电压VCC1分别为3个桥臂100供电，其中1路隔离电源200输出电源VCC2，电源VCC2经过一个降压稳压电路后为微处理器MCU单独供电。降压稳压电路可以采用78系列的降压芯片来完成，VCC2经过一个降压稳压电路后输出+3.3V给微处理器MCU单独供电。
实施例二：
一种电机，包括定子、转子、机壳和电机控制器，其特征在于：电机控制器采用实施例一所述的电机控制器，采用单端反激式DC-DC变换电路出多路隔离电源为后级微处理器MCU、逆变电路和驱动电路供电，瞬间过流或者电压波动对多路隔离电源影响不大，保证IGBT/MOS开关管控制的稳定性和可靠性。
以上实施例为本实用新型的较佳实施方式，但本实用新型的实施方式不限于此，其他任何未背离本实用新型的精神实质与原理下所作的改变、修饰、替代、组合、简化，均为等效的置换方式，都包含在本实用新型的保护范围之内。

Claims (10)

  1. 一种电机控制器，包括电源供电电路、微处理器MCU、逆变电路和驱动电路,电源供电电路为微处理器MCU、逆变电路和驱动电路供电，其特征在于：电源供电电路包括整流电路和单端反激式DC-DC变换电路，市电交流输入连接到整流电路的输入端，整流电路的输出端连接单端反激式DC-DC变换电路，单端反激式DC-DC变换电路出多路隔离电源(200)为后级微处理器MCU、逆变电路和驱动电路供电。
  2. 根据权利要求1所述的一种电机控制器，其特征在于：所述的单端反激式DC-DC变换电路包括变压器T2、电子开关管Q6和脉冲发生器，变压器T2的初级线圈L1与电子开关管Q6串联后一端接地，另一端接输入直流电源VDC，电子开关管Q6的控制端连接脉冲发生器的输出端，变压器T2含有多个次级线圈L2形成多路隔离电源。
  3. 根据权利要求2所述的一种电机控制器，其特征在于：每路隔离电源包括一个次级线圈L2、二极管D3、稳压二极管ZD1和电容C4，次级线圈L2的一端接地GND，次级线圈L2的另一端接二极管D3的正极端，二极管D3的负极端接电容C4的一端，电容C4的另一端接地，电容C4的两端并联稳压二极管ZD1。
  4. 根据权利要求3所述的一种电机控制器，其特征在于：电容C4的两端还并联一个放电电阻R1。
  5. 根据权利要求4所述的一种电机控制器，其特征在于：初级线圈L1的两端并联一个电压钳位电路，所述的电压钳位电路包括电阻R0、电容C0和二极管D0，电阻R0和电容C0并联后再串联二极管D0。
  6. 根据权利要求1或2或3或4或5所述的一种电机控制器，其特征在于：每路隔离电源的输出电压的大小通过调整变压器T2的初级线圈L1和次级线圈L2的匝数比例来设置。
  7. 根据权利要求6所述的一种电机控制器，其特征在于：逆变电路含有多个桥臂(100)，每个桥臂(100)包括上桥开关管Q4和下桥开关管Q5，微处理 器MCU输出信号控制一个驱动电路来驱动上桥开关管Q4和下桥开关管Q5，其中一路隔离电源(200)输出直流电压VCC为驱动电路供电，每个桥臂(100)的上桥开关管Q4由独立的一路隔离电源(200)输出直流电压VCC1来驱动。
  8. 根据权利要求7所述的一种电机控制器，其特征在于：上桥开关管Q4和下桥开关管Q5之间的连接点A引出并连接地GND1，直流电压VCC1连接到电容C6的一端，电容C6的另一端接地GND1，驱动电路的两个个输入引脚连接在电容C6的两端，驱动电路的输出端控制上桥开关管Q4。
  9. 根据权利要求8所述的一种电机控制器，其特征在于：逆变电路含有3个桥臂(100)，共有5路的隔离电源(200)，其中1路隔离电源(200)输出直流电压VCC为驱动电路供电，其中3路隔离电源(200)输出直流电压VCC1分别为3个桥臂(100)供电，其中1路隔离电源(200)输出电源VCC2，电源VCC2经过一个降压稳压电路后为微处理器MCU单独供电。
  10. 一种电机，包括定子、转子、机壳和电机控制器，其特征在于：电机控制器采用权利要求1至9任意一项所述的电机控制器。
PCT/CN2022/079848 2021-07-06 2022-03-09 一种电机控制器及应用其的电机 WO2023279747A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202121519974.2U CN215186536U (zh) 2021-07-06 2021-07-06 一种电机控制器及应用其的电机
CN202121519974.2 2021-07-06

Publications (1)

Publication Number Publication Date
WO2023279747A1 true WO2023279747A1 (zh) 2023-01-12

Family

ID=79401105

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/079848 WO2023279747A1 (zh) 2021-07-06 2022-03-09 一种电机控制器及应用其的电机

Country Status (2)

Country Link
CN (1) CN215186536U (zh)
WO (1) WO2023279747A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215186536U (zh) * 2021-07-06 2021-12-14 中山大洋电机股份有限公司 一种电机控制器及应用其的电机
CN115792419B (zh) * 2023-02-13 2023-05-09 中山大洋电机股份有限公司 一种三相电源缺相检测电路及bldc电机控制器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101295933A (zh) * 2007-04-25 2008-10-29 中国科学院自动化研究所 一种基于数字信号处理器控制的变频电源
JP2011036000A (ja) * 2009-07-30 2011-02-17 Mitsubishi Electric Corp インバータ装置
CN102130644A (zh) * 2011-04-21 2011-07-20 阳光电源股份有限公司 一种直流无刷同步风力发电机的励磁方法、装置及系统
CN202004714U (zh) * 2011-04-21 2011-10-05 阳光电源股份有限公司 一种直流无刷同步风力发电机的励磁装置及风力发电系统
CN205249112U (zh) * 2015-12-14 2016-05-18 甘肃机电职业技术学院 新型低压配电降压节能装置
KR20170143324A (ko) * 2016-06-21 2017-12-29 현대일렉트릭앤에너지시스템(주) 절연형 다출력 전력공급장치 및 이를 갖는 전동기 구동 장치
CN107769568A (zh) * 2017-09-15 2018-03-06 珠海格力节能环保制冷技术研究中心有限公司 隔离电源电路、设置方法、功率驱动电源及设备
CN215186536U (zh) * 2021-07-06 2021-12-14 中山大洋电机股份有限公司 一种电机控制器及应用其的电机

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101295933A (zh) * 2007-04-25 2008-10-29 中国科学院自动化研究所 一种基于数字信号处理器控制的变频电源
JP2011036000A (ja) * 2009-07-30 2011-02-17 Mitsubishi Electric Corp インバータ装置
CN102130644A (zh) * 2011-04-21 2011-07-20 阳光电源股份有限公司 一种直流无刷同步风力发电机的励磁方法、装置及系统
CN202004714U (zh) * 2011-04-21 2011-10-05 阳光电源股份有限公司 一种直流无刷同步风力发电机的励磁装置及风力发电系统
CN205249112U (zh) * 2015-12-14 2016-05-18 甘肃机电职业技术学院 新型低压配电降压节能装置
KR20170143324A (ko) * 2016-06-21 2017-12-29 현대일렉트릭앤에너지시스템(주) 절연형 다출력 전력공급장치 및 이를 갖는 전동기 구동 장치
CN107769568A (zh) * 2017-09-15 2018-03-06 珠海格力节能环保制冷技术研究中心有限公司 隔离电源电路、设置方法、功率驱动电源及设备
CN215186536U (zh) * 2021-07-06 2021-12-14 中山大洋电机股份有限公司 一种电机控制器及应用其的电机

Also Published As

Publication number Publication date
CN215186536U (zh) 2021-12-14

Similar Documents

Publication Publication Date Title
WO2023279747A1 (zh) 一种电机控制器及应用其的电机
CN101588135B (zh) 谐振功率因数校正转换器
KR101921793B1 (ko) 다수의 출력 전압을 위한 탭핑된 권선 플라이백 컨버터
US8638575B2 (en) High voltage startup circuit
CN104836419B (zh) 带欠压检测功能的开关电源驱动芯片供电电路
CN102523650A (zh) 一种led电流检测和控制电路
WO2016115998A1 (zh) 一种数字化双激不间断开关电源
CN1874133A (zh) 全波桥式同步整流电路
CN103647448A (zh) 集成降压-反激式高功率因数恒流电路及装置
CN100561816C (zh) 突波电流抑制电路及使用其的电源供应装置
US11356029B2 (en) Rectifying circuit and switched-mode power supply incorporating rectifying circuit
EP2120320B1 (en) Dc power supply device
TW201629662A (zh) 動態電壓恢復器與其瞬變電壓控制機制
WO2014030104A1 (en) Rectifying circuit and method for an unbalanced two phase dc grid
WO2022179564A1 (zh) 无桥降压功率因素校正电路
US20160079870A1 (en) Switching power supply circuit
CN105406711B (zh) 双路电压转换控制芯片、双路电压转换器和电子式电能表
CN209105035U (zh) 一种dc-dc降压隔离电路
CN207910691U (zh) 一种新型大功率半桥式输出可调开关电源
CN103078529A (zh) 大功率高频高压串联叠加整流变压器
CN208337414U (zh) 多通道可编程电源
CN103607110B (zh) 一种辅助绕组供电的快速开启开关电源
CN207200283U (zh) 一种基于低压潮流串补法的配电网电压跌落补偿电路
JP6800098B2 (ja) 三相交流用絶縁型スイッチング電源
JP6840030B2 (ja) 三相交流用絶縁型スイッチング電源

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22836507

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE