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Power generating control system and control method of permanent magnet brushless direct current starting motor/ generator

A permanent magnet brushless DC, power generation control technology, applied in the control system, control generator, electrical components, etc., can solve the problems of increasing vehicle cost, high power consumption, easy to burn out, etc., to achieve stable voltage output and small voltage pulsation , to achieve simple and reliable results

Inactive Publication Date: 2013-04-24
奇瑞新能源汽车股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of excitation coils, it is easy to burn out, disconnect and consume a lot of power, which reduces the reliability of the generator and increases the cost of the car

Method used

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  • Power generating control system and control method of permanent magnet brushless direct current starting motor/ generator
  • Power generating control system and control method of permanent magnet brushless direct current starting motor/ generator
  • Power generating control system and control method of permanent magnet brushless direct current starting motor/ generator

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Embodiment 1

[0050] Embodiment 1: as figure 1As shown, the present invention provides a power generation control system of a permanent magnet brushless DC motor used as a starter motor and a generator in a hybrid electric vehicle. Bridge, output voltage detection circuit, output current detection circuit, DSP controller and Hall sensor; such as figure 1 as shown,

[0051] The three-phase rectifier bridge is arranged on the three-phase output end of the permanent magnet brushless DC motor, and the output terminal of the three-phase rectifier bridge is connected to the load; in the present embodiment, the three-phase rectifier bridge is as follows figure 2 As shown, it includes six switch tubes V1, V2, V3, V4, V5 and V6.

[0052] Wherein: V1 is set between the a-phase output of the permanent magnet brushless DC motor and the output anode of the three-phase rectifier bridge, and V4 is set between the a-phase output of the permanent magnet brushless DC motor and the output cathode of the th...

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Abstract

The invention discloses a power generating control system and a control method of a permanent magnet brushless direct current starting motor / generator. The control system controls the permanent magnet brushless direct current motor driven by foreign force to generate electricity for load, and comprises a three-phase rectifier bridge, an output voltage detection circuit, an output current detection circuit, a digital signal processor (DSP) controller and a hall sensor. The control method provides a control process for the DSP controller. Original hardware conditions can be directly utilized, and a hardware circuit does not need modifying. The control method does not need extra investment, and reversible operation can be realized. A two-two breakover way is adopted, and extra dead area time does not need adding to control the permanent magnet brushless direct current motor to generate electricity. Generated voltage ripple is small, and stable voltage output can obtained with only a few filter waves, and the power generating control system and the control method are easy and reliable to realize.

Description

technical field [0001] The invention relates to a control method of an automobile motor, in particular to a power generation control method and a control system when a permanent magnet brushless DC motor acts as a starter motor and a generator of an automobile engine. Background technique [0002] At present, most domestic automobiles design starter motors and generators separately, and silicon rectifier generators are mainly used for power generation. This kind of silicon rectifier generator uses electric excitation to generate magnetic flux, it needs to increase the excitation coil, and use the battery to provide the excitation current. Due to the use of the excitation coil, it is easy to be burned, disconnected, and consumes a lot of electric energy, which reduces the reliability of the generator and increases the cost of the car. The permanent magnet brushless DC starter / generator system combines the two motors into one, which reduces the size of the motor. At the same ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/48
Inventor 蔡交明罗晓王瑛陈立冲王金磊黄彬
Owner 奇瑞新能源汽车股份有限公司
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