中国电机工程学报2012，Vol.32Issue(15)：74-83,10.
H桥驱动下的单绕组无轴承薄片电机功率系统故障分析及容错控制
Power Inverter Fault Analysis and Fault-tolerant Control of a Single Winding Bearingless Slice Motor Driven by H-bridge
摘要
Abstract
Aiming at the problem that single winding bearingless slice motor driven by H-bridge cannot run normally due to fault of power switches in power inverter system. Taking a six-phase single winding slice motor for example, this paper analyses H-bridge work mode and the influence caused by fault of the power inverter when the switch tube is at open-circuit and short-circuit state. Based on the analysis, a mathematical model of short-circuit current was derived and a general fault-tolerant control strategy has been proposed. The method, using the reconstruction of healthy phases, compensates the impact to the system caused by the fault power module, and meets the stable operation of motor required levitation force and torque. The fault-tolerant control strategy was verified by finite element simulation. Finally, taking the experiments of the first and second phases＇ power switches working at open-circuit and short-circuit fault state for example, the validity of the theoretical analysis and simulation conclusions referred in the paper are fully proved.关键词
无轴承/薄片电机/单绕组/H桥/功率逆变器故/障/容错控制/短路/开路Key words
bearingless motor/slice motor/single-winding/H-bridge/power inverter fault/fault-tolerantcontrol/short circuit/open circuit分类
信息技术与安全科学引用本文复制引用
任新宇,王晓琳..H桥驱动下的单绕组无轴承薄片电机功率系统故障分析及容错控制[J].中国电机工程学报,2012,32(15):74-83,10.基金项目
国家自然科学基金项目（50977043）. （）
