Independent Phase Current Reconstruction Strategy for IPMSM Sensorless Control Without Using Null Switching States

• Published in: IEEE transactions on industrial electronics (1982) Vol. 65; no. 6; pp. 4492 - 4502
• Main Authors: Lu, Jiadong, Zhang, Xiaokang, Hu, Yihua, Liu, Jinglin, Gan, Chun, Wang, Zheng
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.06.2018; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Electric potential; Electrical equipment; Estimation; Fault tolerance; high frequency (HF) voltage injection; Integrated circuits; interior permanent magnet synchronous motor (IPMSM); Modularity; Permanent magnet motors; Permanent magnets; Phase current; phase current reconstruction; Pulse width modulation; Reconstruction; Sensorless control; Switches; Switching; Synchronous motors; Voltage pulses

This paper proposes a new phase current reconstruction scheme without using null switching states for interior permanent magnet synchronous motor (IPMSM) sensorless control. The phase currents are independently reconstructed and no additional test voltage pulses are required. First, the principle of...