A Data-Driven Predictive Control Method for Modeling Doubly-Fed Variable-Speed Pumped Storage Units

Peiyu Zhao, Haipeng Nan (), Qingsen Cai, Chunyang Gao and Luochang Wu
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Peiyu Zhao: School of Water Resources and Hydropower, Xi’an University of Technology, Xi’an 710065, China
Haipeng Nan: School of Water Resources and Hydropower, Xi’an University of Technology, Xi’an 710065, China
Qingsen Cai: Northwest Engineering Corporation Limited, Power China, Xi’an 710065, China
Chunyang Gao: School of Water Resources and Hydropower, Xi’an University of Technology, Xi’an 710065, China
Luochang Wu: School of Water Resources and Hydropower, Xi’an University of Technology, Xi’an 710065, China

Energies, 2024, vol. 17, issue 19, 1-20

Abstract: In this study, a data-driven model predictive control (MPC) method is proposed for the optimal control of a doubly-fed variable-speed pumped storage unit. This method combines modern control theory with the dynamic characteristics of the pumped storage unit to establish an accurate dynamic model based on actual operating data. In each control cycle, the MPC uses the system model to predict future system behavior and determines the optimal control input sequence by solving the constrained optimization problem, thereby effectively dealing with the nonlinearity, time-varying characteristics, and multivariable coupling problems of the system. When compared with a traditional PID control, this method significantly improves control accuracy, response speed, and system stability. The simulation results show that the proposed MPC method exhibits better steady-state error, overshoot, adjustment time, and control energy under various operating conditions, demonstrating its advantages in complex multivariable systems. This study provides an innovative solution for the efficient control of doubly-fed variable-speed pumped storage units and lays a solid foundation for the efficient utilization of new energy sources.

Keywords: integrated energy system; modeling method; optimized control; data-driven; DFIG; MPC (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: 2024
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