电力系统自动化2017，Vol.41Issue(10)：58-65,8.DOI:10.7500/AEPS20160706008
双馈抽水蓄能机组参与电网调频的改进虚拟惯性控制策略
Improved Virtual Inertia Control Strategy of Doubly Fed Pumped Storage Unit for Power Network Frequency Modulation
摘要
Abstract
Aiming at enhancing the capability of the network frequency modulation supported by the doubly fed pumped storage unit (DFPSU), a kind of improved proportional-differential (PD) loop virtual inertia control strategy of DFPSU is proposed.First, based on the operation characteristics of DFPSU, the models of reversible pump turbine, doubly fed induction machine and control system of DFPSU are established.Then, according to the relationship between the virtual inertia, the rotational speed adjustment and the network frequency variation, a kind of improved PD loop virtual inertial control strategy of DFPSU is proposed.In addition, a control parameter calculating method in the improved PD virtual inertia control is also provided.Finally, a three-machine system with DFPSU is used to validate the proposed control strategy.The simulation results show that the proposed control strategy could effectively improve the frequency response ability of DFPSU in both the generator and motor mode and the frequency stability of the power system at the same time.关键词
双馈抽水蓄能机组/虚拟惯量/惯性控制/频率调节/参数整定Key words
doubly fed pumped storage unit (DFPSU)/virtual inertia/inertia control/frequency modulation/parameters calculation引用本文复制引用
李辉,刘海涛,宋二兵,肖洪伟,骆林,黄智欣..双馈抽水蓄能机组参与电网调频的改进虚拟惯性控制策略[J].电力系统自动化,2017,41(10):58-65,8.基金项目
国家自然科学基金资助项目(51377184) （51377184）
中央高校基本科研业务费专项资金资助项目(106112016CDJZR158802).This work is supported by National Natural Science Foundation of China (No.51377184) and Fundamental Research Funds for the Central Universities (No.106112016CDJZR158802). （106112016CDJZR158802）
