Salehifar Mehdi, Moreno-Equilaz Manuel
Electronic Engineering Department, UPC, Rambla Sant Nebridi, s/n, 08222 Terrassa, Spain.
ISA Trans. 2016 Jan;60:143-155. doi: 10.1016/j.isatra.2015.10.007. Epub 2015 Nov 6.
Due to its fault tolerance, a multiphase brushless direct current (BLDC) motor can meet high reliability demand for application in electric vehicles. The voltage-source inverter (VSI) supplying the motor is subjected to open circuit faults. Therefore, it is necessary to design a fault-tolerant (FT) control algorithm with an embedded fault diagnosis (FD) block. In this paper, finite control set-model predictive control (FCS-MPC) is developed to implement the fault-tolerant control algorithm of a five-phase BLDC motor. The developed control method is fast, simple, and flexible. A FD method based on available information from the control block is proposed; this method is simple, robust to common transients in motor and able to localize multiple open circuit faults. The proposed FD and FT control algorithm are embedded in a five-phase BLDC motor drive. In order to validate the theory presented, simulation and experimental results are conducted on a five-phase two-level VSI supplying a five-phase BLDC motor.
由于其容错能力，多相无刷直流（BLDC）电机能够满足电动汽车应用中对高可靠性的要求。为电机供电的电压源逆变器（VSI）会出现开路故障。因此，有必要设计一种带有嵌入式故障诊断（FD）模块的容错（FT）控制算法。本文提出了有限控制集模型预测控制（FCS-MPC）来实现五相BLDC电机的容错控制算法。所开发的控制方法快速、简单且灵活。提出了一种基于控制模块可用信息的故障诊断方法；该方法简单，对电机中的常见瞬态具有鲁棒性，并且能够定位多个开路故障。所提出的故障诊断和容错控制算法被嵌入到五相BLDC电机驱动器中。为了验证所提出的理论，在为五相BLDC电机供电的五相两电平VSI上进行了仿真和实验结果。
