孙鹤旭,张厚升.电动汽车驱动一体化系统牵引模式下逆变器的开路容错控制策略[J].电测与仪表,2016,53(17):. Sun Hexu,Zhang Housheng.A Novel Tolerant Control Strategy for the Inverter of the EV Integrated Traction System[J].Electrical Measurement & Instrumentation,2016,53(17):.
电动汽车驱动一体化系统牵引模式下逆变器的开路容错控制策略
A Novel Tolerant Control Strategy for the Inverter of the EV Integrated Traction System
An integrated topology of electric vehicle (EV) traction system and battery charging system is proposed. The integrated traction mode topology is equivalent to a DC/DC converter and a three phase 3H bridge inverter with open-end windings of PMSM. In order to improve the high reliability of the motor drive system, on the basis of analyzing PMSM mathematical model, the control strategy with fault tolerant capabilities for the three phase 3H bridge inverter is studied in this paper, the three phase 3H bridge inverter’s fault type is introduced. A kind of two phase hysteresis PWM control strategy is also introduced for open arm fault of the two phase 2H bridge inverter. Experimental results show that, in traction mode of the integrated topology, if the three phase 3H bridge inverter fails, a good operating performance of PMSM system can be achieved by the reconstruction of the inverter topology.
