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Open winding motor system and drive circuit

A motor drive circuit and drive circuit technology, applied in control systems, AC motor control, electrical components, etc., can solve problems such as low reliability, and achieve the effect of fault-tolerant control, simple structure, safe and reliable control

Inactive Publication Date: 2019-03-05
HENAN SENYUAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an open-winding motor system and drive circuit to solve the problem of low reliability of the fault-tolerant system of the existing open-winding motor

Method used

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  • Open winding motor system and drive circuit
  • Open winding motor system and drive circuit
  • Open winding motor system and drive circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Open Winding Motor System Embodiment

[0025] This embodiment provides an open-winding motor system, including an open-winding motor and a drive circuit. The open-winding motor is an open-winding three-phase motor, and the control object of the drive circuit is an open-winding three-phase motor. In this embodiment, the open-winding three-phase The three-phase motor is specifically an open-winding permanent magnet synchronous motor. The three-phase motor windings of the open-winding permanent magnet synchronous motor are independent of each other, which are respectively the first phase winding, the second phase winding and the third phase winding, corresponding to figure 1 Winding C, Winding B, and Winding A in

[0026] The drive circuit includes a DC power interface, a first inverter circuit (hereinafter referred to as inverter 1) and a second inverter circuit (hereinafter referred to as inverter 2), and the DC power interface is used to connect a DC power source (such ...

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PUM

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Abstract

The invention relates to an open winding motor system and a drive circuit and belongs to the technical field of opening winding motor control. Redundant bridge arms and redundant inductors are set inthe drive circuit. When an open circuit fault occurs in certain phase of winding or certain bridge arm, the fault winding or bridge arm stops working, the redundant inductors and the redundant bridgearms are put into operation, and fault-tolerant control is realized. Even under fault condition, a connection method of motor windings is not limited, and a switching drive signal originally sent to the fault bridge arm is forwarded to the redundant bridge arms, so the control is simple, secure and reliable. Even if the fault occurs in certain phase, the circuit still can be operated normally, normal drive is realized, and reliability of an inverter circuit is improved.

Description

technical field [0001] The invention relates to an open-winding motor system and a driving circuit, belonging to the technical field of open-winding motor control. Background technique [0002] The inverter is the weak link in the drive system of the electric vehicle. The power tube of the inverter is prone to failure, and the failure of the inverter will affect the normal driving of the electric vehicle. Therefore, in order to solve this situation, researchers at home and abroad have proposed various fault-tolerant technologies to maintain the stability of the system. However, most of these technologies are based on a single fault-tolerant structure, which lacks certain reliability, or reduces the performance of the system, and cannot meet the high reliability and high stability requirements of the electric vehicle drive system to a certain extent. Contents of the invention [0003] The object of the present invention is to provide an open-winding motor system and a driv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/06H02P25/18H02M7/5387
CPCH02M7/5387H02P25/18H02P27/06
Inventor 苏亚辉常乐楚金甫陈西山汪世伟古伟鹏王勇王键珲刘向阳
Owner HENAN SENYUAN HEAVY IND
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