Research on control strategy of f ull‐ s ize converter‐based variable speed pumped storage unit in power generation condition

作者：Guopeng Zhao, Yongxin Zhang, Zheng Li, Jiyun Ren · 发表于：International Transactions on Electrical Energy Systems · 年份：2021 · DOI：10.1002/2050-7038.13114 · 被引用次数：9 · 研究领域：Microgrid Control and Optimization、Cavitation Phenomena in Pumps、Wind Turbine Control Systems

In this paper, the mathematical models of each part of the direct-drive variable speed pumped storage unit are established, including the model of the pump turbine and its regulating system, the model of direct-drive motor, and its excitation control system. Then we introduce two control methods of variable speed pumped storage unit, namely power priority control method, and speed priority control method. And then, the influence of the value of the internal parameters of the unit on the control characteristics of the unit is analyzed, and the control system of the unit is designed according to the value of the internal parameters of the unit, and the control parameters with the optimal control effect are obtained. Finally, the obtained optimal control parameters are verified using simulation software.