Model Reference Adaptive Sensorless Control of Variable-Speed Pumped Storage Doubly Fed Induction Machine Under Reversible Operations

Zhi Zheng, Ziqiang Man, Shuxin Tan, Wei Yan, Yu Lu, Jie Tian, Weiqun Liu and Xu Wang ()
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Zhi Zheng: Construction and Management Branch of China Southern Power Grid Energy Storage Co., Ltd., Guangzhou 511400, China
Ziqiang Man: NR Electric Co., Ltd., Nanjing 211102, China
Shuxin Tan: Construction and Management Branch of China Southern Power Grid Energy Storage Co., Ltd., Guangzhou 511400, China
Wei Yan: NR Electric Co., Ltd., Nanjing 211102, China
Yu Lu: NR Electric Co., Ltd., Nanjing 211102, China
Jie Tian: NR Electric Co., Ltd., Nanjing 211102, China
Weiqun Liu: NR Electric Co., Ltd., Nanjing 211102, China
Xu Wang: School of Electrical and Power Engineering, Hohai University, Nanjing 211100, China

Energies, 2025, vol. 18, issue 11, 1-18

Abstract: The sensorless control of doubly fed induction machine (DFIM) rotor magnetic flux based on a model reference adaptive system (MRAS) is proposed to improve the reliability of a large-scale variable-speed pumped storage (VSPS) system and reduce operation and maintenance costs. The existing sensorless control of doubly fed induction machines (DFIMs) is mostly focused on generator operation, making it difficult to apply to the VSPS system. The proposed strategy realizes the reversible operations of the VSPS through the design of an adaptive law under variable operating conditions, eliminating mechanical sensors, and possessing the characteristics of simple implementation and accurate identification. The mathematical model of the DFIM in a VSPS system is constructed, and an MRAS vector control strategy based on stator voltage orientation is established. The rotor angle and speed under reversible operating conditions are effectively identified by dynamically adjusting the angle error between the rotor flux reference model and the adaptive model to approach zero. Subsequently, comparative analysis with the closed-loop direct detection method verifies the advantages of the proposed strategy. The proposed control method can accurately identify rotor position and speed in the pumping and power generation conditions of the VSPS system and it demonstrates robust adaptability.

Keywords: variable-speed pumped storage; sensorless control; doubly fed induction machine; model reference adaptive system; reversible operating conditions (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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