Applying Synchronous Condenser for Damping Provision in Converter-dominated Power System  

作　　者：Ha Thi Nguyen Guangya Yang Arne Hejde Nielsen Peter HΦjgaard Jensen Bikash Pal 

机构地区：[1]the Department of Electrical Engineering,Danmarks Tekniske Universitet,Roskilde,Denmark [2]the Electrical Engineering,Technical University of Denmark,Lyngby,Denmark [3]Siemens AG Sektor Energie,Ballerup,Denmark [4]the Department of Electrical and Electronic Engineering,Imperial College London,London,UK

出　　处：《Journal of Modern Power Systems and Clean Energy》2021年第3期639-647,共9页现代电力系统与清洁能源学报（英文）

基　　金：This work was supported by Synchronous Condenser Application(SCAPP)project funded by ForskEL program(No.12196)administrated by Energinet.dk.

摘　　要：The dynamic characteristics of converter-dominated systems are governed by controlling power converters and the interactions between converter systems and conventional alternators.Frequency oscillations can appear under dynamic operation conditions caused by the phase-locked loop dynamics and interactions among the converter control systems.The oscillations may be poorly damped,which can result in reduced power generation,longer settling time,or disconnections of sensitive components.It is foreseeable that damping services will be critical for power grid stabilization in the future with high penetration of renewable generation.In this work,synchronous condensers(SCs)are evaluated and applied to provide damping services to the power grid under post-event conditions.An innovative supplementary controller for the automatic voltage regulator of SCs is proposed to improve the frequency stabilization in a converter-dominated system after disturbances.Using local and remote measurements,SCs are able to modulate the reactive power output and hence,the terminal bus voltage,which further impacts the power flow in the system;therefore,damping can be provided to the frequency oscillations.The control is implemented on an industrial-level hardware platform,and the performance is verified by the hardware-in-the-loop simulation.

关 键 词：Power oscillation Prony analysis low-inertia system supplementary controller synchronous condenser(SC) 

分 类 号：TM53[电气工程—电器] TM46