Jiajiang Sun

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Lisi Tian 1,†, Jin Zhao 2,*,† and Jiajiang Sun 2 1 School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China; tianlisi@hust.edu.cn 2 School of Automation, Huazhong University of Science and Technology, Wuhan 430074, China; sunjiajiang@hust.edu.cn * Correspondence: jinzhao617@163.com; Tel.:(More)
This paper proposes a novel maximum torque per ampere (MTPA) control strategy based on the extremum seeking control (ESC) for interior permanent magnet synchronous machine (IPMSM) drives. The insights of the MTPA characteristics are analyzed as the research foundation. Unlike the common signal injection scheme, the high-frequency current in the proposed(More)
The fundamental excitation methods are commonly used to implement the sensorless control of the interior permanent-magnet synchronous motors (IPMSM) in the medium to high speed regions. This paper utilizes the sliding-mode observer (SMO) to extract the extended back electromotive force (EMF) components of the IPMSM which contains the position related(More)
  • Jihua Ma, Jin Zhao, Jiajiang Sun, Caizhong Yan
  • IECON 2017 - 43rd Annual Conference of the IEEE…
  • 2017
In this paper, a sliding mode speed control scheme associated with an original fuzzy disturbance observer (FDO) is presented for the permanent-magnet synchronous motor (PMSM) control system with various disturbances. In order to overcome the main drawback of traditional sliding mode control, that is, large control effort and chattering, and meanwhile,(More)
In this paper, predictive speed control (PSC) of interior permanent magnet sychonous motor (IPMSM) which is based on finite control set model predictive control (FCS-MPC) is investigated. The predictive speed controller with a cascade-free structure has a excellent dynamic performance. A prediction model with speed compensation is used to predict the future(More)
This paper presents an investigative work about the direct speed control (DSC) of interior permanent magnet synchronous motor (IPMSM) based on finite control set model predictive control (FCS-MPC). A compensation is applied to the speed prediction model because of the unknown load torque and varied rotary inertia. And a multi-constrained cost function with(More)
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