新型电力系统稳定器研究初探  

Preliminary Study on Stabilizer for New Power Systems

作　　者：谢小荣[1,2] 李浩志 张丹 王晰[1,2] XIE Xiaorong;LI Haozhi;ZHANG Dan;WANG Xi(Department of Electrical Engineering,Tsinghua University,Beijing 100084,China;State Key Laboratory of Power System Operation and Control(Tsinghua University),Beijing 100084,China)

机构地区：[1]清华大学电机工程与应用电子技术系,北京市100084 [2]新型电力系统运行与控制全国重点实验室(清华大学),北京市100084

出　　处：《电力系统自动化》2024年第23期156-166,共11页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(U22B20100,51925701,52321004);台达电力电子科教发展计划资助项目(DREN2023001)。

摘　　要：新型电力系统中“机-电-磁-控”多时间尺度相互作用会引发频率从数赫兹到数千赫兹的宽频振荡,正成为制约其发展的关键稳定性问题和重大技术挑战。文中首先回顾了针对同步机动态主导的低频振荡的电力系统稳定器技术,归纳了宽频振荡抑制的已有方法和面临难题;然后,提出了针对宽频振荡抑制的新型电力系统稳定器的基本原理,设计了“即测-即辨-即控”的控制结构;继而分析了新型电力系统稳定器的关键技术难点,展望了未来研究方向和解决问题的基本思路;最后,给出了针对双馈风电机组-串补交流系统场景而设计的新型电力系统稳定器样机及其硬件在环测试结果,表明所提出的新型电力系统稳定器概念、理论和方法具有可行性。The multi-timescale interaction of“mechanic-electricity-magnetism-control”in the new power system will trigger wideband oscillations from several hertz to several kilohertz,which is becoming a key stability issue and major technical challenge that restricts the development of power systems.The paper first reviews the power system stabilizer technology for low-frequency oscillations dominated by synchronous machines,and summarizes the existing methods and challenges faced in suppressing wideband oscillations.Then,the basic concept of a new power system stabilizer(NPSS)for wideband oscillation suppression is proposed,and a control structure of“instant measurement-instant identification-instant control”is designed.The key technical challenges in NPSS are analyzed.The future research directions and basic approach to addressing these issues are further given.Finally,a prototype of NPSS designed for the scenario of doubly-fed wind turbines connected to the series compensated AC system and its hardware-in-the-loop test results are presented,indicating the feasibility of the proposed concept,theory,and method of the NPSS.

关 键 词：新型电力系统 电力系统稳定器 宽频振荡 低频振荡 稳定控制 

分 类 号：TM712[电气工程—电力系统及自动化]