全功率小型变速抽水蓄能机组双层MPC虚拟惯量控制策略  

Two-Layer MPC Virtual Inertia Control Strategy for Small-Scale Variable-Speed Pumped Storage Unit with Full-Size Converter

作　　者：许常昊 关伟东 王越[1] 张金帅 王鹏 周宁 尚博文 XU Changhao;GUAN Weidong;WANG Yue;ZHANG Jinshuai;WANG Peng;ZHOU Ning;SHANG Bowen(College of Information and Electrical Engineering,China Agriculture University,Beijing 100083,China;State Grid Henan Electric Power Co.,Ltd.Electric Power Research Institute,Zhengzhou 450052,China)

机构地区：[1]中国农业大学信息与电气工程学院,北京100083 [2]国网河南省电力公司电力科学研究院,河南郑州450052

出　　处：《中国电力》2025年第2期216-226,共11页Electric Power

基　　金：国家电网有限公司科技项目(面向配电网分布式新能源消纳的微型抽水蓄能关键技术研究及装备研制,5400-202324196A-1-1-ZN)。

摘　　要：在配电侧发展微型可变速抽水蓄能,有利于以更为环保的方式提升配网消纳新能源的能力。提出一种全功率变速抽水蓄能机组双层模型预测控制(two layer model predictive control,TLMPC)虚拟惯量控制策略。该策略包含一个标准层模型预测控制(model predictive control,MPC)和辅助层MPC,标准层MPC基于确定的系统预测模型,产生最小化的频率偏差信号,传递给辅助层MPC,而辅助层MPC考虑光伏的随机性,以跟踪标准层MPC预测的频率偏差为目标,同时产生功率和导叶控制信号。通过对含有全功率抽水蓄能机组的系统进行仿真分析,表明了所提的控制策略具有良好的频率调节性能,有助于提升配电网的光伏消纳能力。The development of miniature variable-speed pumped storage on the distribution side is conducive to enhancing the ability of the distribution network to accomodate renewable energies in a more environmentally friendly way.In this paper,a two-layer model predictive control(MPC)virtual inertia control strategy for variable-speed pumped storage unit with full-size converter is proposed.The strategy contains a standard-layer MPC and an auxiliary-layer MPC.The standard-layer MPC generates minimized frequency deviation signals based on a determined system prediction model and passes them to the auxiliary-layer MPC,which considers the stochastic nature of the PV generation with the goal of tracking the frequency deviation predicted by the standard-layer MPC and generates both the power and the guide vane control signals.The simulation of a test system containing a pumped storage unit with full-size converter shows that the proposed control strategy has good frequency-regulating performance,which is helpful to enhancing the PV accomodation capability of the distribution networks.

关 键 词：变速抽水蓄能机组 全功率变流器 虚拟惯量控制 调频控制 模型预测控制 

分 类 号：TV743[水利工程—水利水电工程] TV734