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A Fault-Tolerant Direct Controlled PMSG Drive for Wind Energy Conversion Systems

机译：用于风能转换系统的容错直接控制PMSG驱动器

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Reliability and availability levels are crucial aspects for assessing the economic viability of wind energy conversion systems. Therefore, fault-tolerant systems can make a valuable contribution. This paper presents a fault-tolerant permanent-magnet synchronous generator (PMSG) drive employing new direct control techniques. For postfault operation, a direct power control (DPC) of a four-switch three-phase converter and a direct torque control of a three-switch three-phase rectifier are proposed. Switching tables are theoretically formulated for both control techniques. Two alternative tables are obtained for the DPC of the grid-side converter, permitting the choice between implementation simplicity and enhanced performance. All necessary reconfigurations to handle open-circuit faults are triggered by a reliable fault diagnostic method, which has a low computational demand, without requiring additional measurements. Experimental results are presented, demonstrating the feasibility of the proposed fault-tolerant PMSG drive.
机译：可靠性和可用性水平是评估风能转换系统经济可行性的关键方面。因此，容错系统可以做出宝贵的贡献。本文介绍了采用新的直接控制技术的容错永磁同步发电机（PMSG）驱动器。对于故障后操作，提出了四开关三相变换器的直接功率控制（DPC）和三开关三相整流器的直接转矩控制。理论上为两种控制技术制定了切换表。对于电网侧转换器的DPC，获得了两个替代表，从而可以在实现简单性和增强性能之间进行选择。处理开路故障的所有必要重新配置均由可靠的故障诊断方法触发，该方法具有较低的计算需求，而无需进行额外的测量。给出了实验结果，证明了所提出的容错PMSG驱动器的可行性。

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