Sliding mode decoupling for IPM machine

Seung Kyu Park; Tae Won Kim; Tae Sung Yoon; Kun Pyoung Kwak; Ho Kyun Ahn

doi:10.1117/12.664600

2 May 2006 Sliding mode decoupling for IPM machine

Seung Kyu Park, Tae Won Kim, Tae Sung Yoon, Kun Pyoung Kwak, Ho Kyun Ahn

Proceedings Volume 6042, ICMIT 2005: Control Systems and Robotics; 60421B (2006) https://doi.org/10.1117/12.664600
Event: ICMIT 2005: Merchatronics, MEMS, and Smart Materials, 2005, Chongqing, China

Abstract

The current control for interior permanent magnet(IPM) machines is more complicate than surface permanent magnet (SPM) machine because of its torque characteristic depending on the reluctance. For high performance torque control, it requires state decoupling between the d-current and q-current dynamics. However the variation of the inductances, which couples the state dynamics of the currents, makes the state decoupling difficult. So some decoupling methods have developed to cope this variations and each current can be regulated independently. This paper presents a novel approach for the decoupling of the states cross-coupling using sliding mode control. The sliding mode control method is based on the error between reference currents and the actual currents. The proposed method has the advantages of PI control performance and the sliding mode control robustness. Its first design step is to design PI controller, then the sliding mode control input term is added to it. This makes actual implementation of the controller easier.

Citation Download Citation

Seung Kyu Park, Tae Won Kim, Tae Sung Yoon, Kun Pyoung Kwak, and Ho Kyun Ahn "Sliding mode decoupling for IPM machine", Proc. SPIE 6042, ICMIT 2005: Control Systems and Robotics, 60421B (2 May 2006); https://doi.org/10.1117/12.664600

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