Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Linear active disturbance rejection control with torque compensation for electric load simulator

  • Liu, Haitao (Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University) ;
  • Liu, Huarong (Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University) ;
  • Shan, Xianlei (Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University)
  • Received : 2020.06.20
  • Accepted : 2020.10.08
  • Published : 2021.01.20
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Abstract

This study proposes a design of an inner control loop for the load torque control of an electric load simulator (ELS), which is specifically designed to simulate load torque (i.e., load) for mechanical equipment. By mainly drawing on linear active disturbance rejection control, a mechatronic model-based inner loop controller of ELS is designed using measured torque to reduce the complexity of the estimator. A phase-locked loop observer is introduced to suppress the negative effects of the measurement error, thereby resulting in good performance for surplus torque suppression and the dynamic behavior of the control system. Simulations and experiments on a prototype machine are performed to verify the effectiveness of the proposed control method.

Keywords

Acknowledgement

The research is partially supported by the National Key R&D Program of China (Grant No. 2017YFB1301800), National Natural Science Foundation of China (Grant No. 51805361), Natural Science Foundation of Tianjin (Grant No. 18JCQNJC04900), and China Postdoctoral Science Foundation (Grant No. 2018M640233).

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