A fault-tolerant permanent magnet synchronous motor drive with integrated voltage source inverter open-circuit faults diagnosis
A fault-tolerant permanent magnet synchronous motor drive with integrated voltage source inverter open-circuit faults diagnosis
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发表时间：
2011-09
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通讯作者：
J. Estima;A. Cardoso
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作者：
J. Estima;A. Cardoso
本文提出了一种基于永磁同步电机的变速交流驱动器，由三相容错电力转换器供电。为了实现这一目标，除了主程序之外，控制系统还集成了可靠且简单的算法，用于实时诊断逆变器开路故障。该算法发挥着重要作用，因为它能够检测逆变器故障并提供有关其故障相的信息。然后，控制系统首先隔离故障，然后进行硬件和软件重新配置。通过这样做，可以实现全自动容错变速驱动器。仿真和实验结果显示了所提出的系统在多种操作条件下的有效性。
This paper presents a variable speed ac drive based on a permanent magnet synchronous motor, supplied by a three-phase fault-tolerant power converter. In order to achieve this, beyond the main routines, the control system integrates a reliable and simple algorithm for real-time diagnostics of inverter open-circuit faults. This algorithm performs an important role since it is able to detect an inverter malfunction and gives the information about its faulty phase. Then, the control system acts in order to first isolate the fault and then to proceed to a hardware and software reconfiguration. By doing this, a fully automated fault-tolerant variable speed drive can be achieved. Simulation and experimental results are presented showing the effectiveness of the proposed system under several operating conditions.