中国电机工程学报2024，Vol.44Issue(14)：5736-5746,中插25,12.DOI:10.13334/j.0258-8013.pcsee.230766
双三相同步磁阻电机单相开路故障下的容错控制策略
Fault-tolerant Control Strategy for Dual Three-phase Synchronous Reluctance Motor Under One-phase Open-circuit Fault
邹继斌 1李炳均 1张文韬 1徐永向 1郑博元2
作者信息
- 1. 哈尔滨工业大学电气工程及自动化学院,黑龙江省 哈尔滨市 150006
- 2. 哈尔滨工程大学智能科学与工程学院,黑龙江省 哈尔滨市 150009
- 折叠
摘要
Abstract
Dual three-phase synchronous reluctance motor(DTP-SynRM)has good fault tolerance performance due to its high degree of system freedom and strong redundancy.Since the rotor does not contain permanent magnets,there is no risk of high-temperature demagnetization.Open-circuit fault is one of the most common types of faults in dual three-phase synchronous reluctance motor systems.Aiming at the one-phase open-circuit fault of a DTP-SynRM with two sets of three-phase windings with independent neutral points,this paper establishes a vector space decoupling model to achieve complete decoupling of voltage,current,and flux equations.It is still regarded as a normal dual three-phase motor under the open-circuit fault condition,and the influence of the fault state on the current constraint and signal transmission of the motor is analyzed.It is also pointed out that under the open-circuit fault,the z2 axis current and the β axis current are no longer independent,and the motor is downgraded from the fourth-order system during normal operation to the third-order system,and the inaccurate voltage signal transmission caused by the open-circuit fault will introduce the second harmonic current in the dq coordinate system and generate the second and fourth torque fluctuations.This paper proposes a fault-tolerant control strategy that considers both current constraint and signal transmission error,and the motor is in a three-loop operation state to compensate for the voltage signal transmission error,suppressing the torque fluctuation during the open circuit fault and reduce the current harmonics.An experimental platform is built for experimentation,which verifies the effectiveness and feasibility of the proposed fault-tolerant control strategy.关键词
双三相同步磁阻电机/容错控制/开路故障/电流约束/电压信号传递误差/转矩脉动抑制Key words
dual three-phase synchronous reluctance motor/fault-tolerant control/open-phase fault/current constraint/voltage signal transmission error/torque fluctuation suppression分类
信息技术与安全科学引用本文复制引用
邹继斌,李炳均,张文韬,徐永向,郑博元..双三相同步磁阻电机单相开路故障下的容错控制策略[J].中国电机工程学报,2024,44(14):5736-5746,中插25,12.
