基于虚拟绕组和全阶观测器的五相感应电机无速度传感器容错控制策略

doi:10.19595/j.cnki.1000-6753.tces.171347

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Abstract Multiphase machines have the advantages of high reliability, high fault-tolerant ability, and the additional degrees of freedom. A virtual winding algorithm is firstly proposed and the machine in fault can be dealt as a normal machine with some virtual windings instead of the faulty windings, so a unified control frame can be adopted in the healthy and the faulty conditions. The phase failure condition is transformed into the control constraint of phase current at the spatial scale, and the harmonic suppression algorithm is also added at the time scale. At the same time, a full-order adaptive observer is adopted to observe the rotor flux and rotor speed. Therefore, the sensorless fault-tolerant control of multiphase induction machine can be achieved. Finally, Experimental results on the five-phase induction machine demonstrate that the proposed control algorithm can observe the rotor flux and rotor speed accurately, eliminate the torque ripple significantly in phase failure conditions, and also achieve the smooth transition from pre- to post-fault situation.

Key words： Multiphase induction machine phase failure conditions virtual winding full-order observer fault-tolerant control

Received: 21 September 2017 Published: 12 November 2018

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TM301.2

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	Peng Zhong
	Zheng Zedong
	Liu Zicheng
	Wang Kui
	Li Yongdong

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Peng Zhong,Zheng Zedong,Liu Zicheng等. A Novel Sensorless Fault-Tolerant Control of Five-Phase Induction Machine Using Virtual Winding and Full-Order Observer[J]. Transactions of China Electrotechnical Society, 2018, 33(21): 4949-4961.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.171347 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I21/4949

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