中国电力2024，Vol.57Issue(4)：68-76,9.DOI:10.11930/j.issn.1004-9649.202312027
基于虚拟惯量控制的新型电力系统功率差前馈振荡抑制方法
Power Difference Feed-forward Oscillation Suppression Method for New Power System Based on Virtual Inertial Control
摘要
Abstract
To solve the problem of low inertia and weak damping in the new power system,virtual synchronous generator technology has attracted much attention.However,while the virtual synchronous generator provides inertia and damping for the system,it also causes the system to generate active oscillation when affected by disturbance,and it is easy to produce steady-state errors.Therefore,this paper proposes a power difference feedforward oscillation suppression method for a new power system based on virtual inertial control to optimize the control of a virtual synchronous generator.This effectively reduces the influence of active power and frequency generated under disturbance and improves the dynamic stability of the system.Meanwhile,the active closed-loop small-signal models of conventional control,differential feedforward control,and power difference feedforward control are built respectively,and the relevant parameter design methods are given.The effectiveness and superiority of the proposed strategy in solving dynamic oscillation and steady-state error problems are verified through simulation.关键词
新型电力系统/有功振荡/频率超调/根轨迹分析/参数整定Key words
new power system/active oscillation/frequency overshoot/root locus analysis/parameter tuning引用本文复制引用
王雪,刘林,卓庆东,张海鹏,杨苓,许方园,曹雨晨..基于虚拟惯量控制的新型电力系统功率差前馈振荡抑制方法[J].中国电力,2024,57(4):68-76,9.基金项目
国家电网有限公司科技项目(新型电力系统下系统惯量计量、商业模式及关键技术研究,1400-202357351A-1-1-ZN). This work is supported by the Science and Technology Project of SGCC(Research on Key Technologies of System Inertia Metering and Commerical Modes under New Power System,No.1400-202357351A-1-1-ZN). （新型电力系统下系统惯量计量、商业模式及关键技术研究,1400-202357351A-1-1-ZN）
