SVC抑制SSR的机理及控制器设计  

The Principle and Design of SVC Controller for SSR Mitigation

作　　者：张静[1] 徐政[1] 郑翔[1] 裘鹏[1] 

机构地区：[1]浙江大学电机系,杭州310027

出　　处：《南方电网技术》2010年第3期57-61,共5页Southern Power System Technology

基　　金："十一五"国家科技支撑计划重大项目资助(2006BAA02A17)~~

摘　　要：为了能同时有效地消除发电机组的多个不稳定次同步谐振模式,提出了基于SVC的多通道SSR阻尼控制器(MSSRDC)的结构、设计原则和方法。基于相位补偿原理,MSSRDC利用多个独立模式控制通道分别处理发电机组各扭振模式,使SVC能够在发电机组各危险扭振模式附近都能提供正的电气阻尼,从而达到抑制次同步谐振的目的。基于IEEESSR第一标准测试系统的频域和时域仿真表明,根据上述方法设计的MSSRDC能够提高发电机组所需要的正向电气阻尼,达到有效地抑制SSR的目的。To suppress the multiple unstable torsional modes of the turbine-generator system, a Mutli-channel Subsynchronous Resonance Damping Controller （MSSRDC） is proposed, including its structure, design principle and method. Based on the phase compensation technique, MSSRDC treats torsional modes of generators separately with multiple independent channels and provides positive damping near torsional frequencies that are critical to the turbine-generator system. The simulations with modified IEEE SSR first benchmark model both in frequency domain and time domain show that the proposed MSSRDC can increase the positive electrical damping for generators and eliminate torsional instability effectively.

关 键 词：静止无功补偿器(SVC) 次同步谐振(SSR) 阻尼控制器 相位补偿 

分 类 号：TM714.3[电气工程—电力系统及自动化]