多机系统复转矩系数分析及PSS参数计算  

Analysis of Complex Torque Coefficient in Multi-Machines System and PSS Parameters Assignment

作　　者：姜齐荣[1] 陈湘[1] 王天 于同伟[1] 陆超[1] 

机构地区：[1]清华大学电机系电力系统国家重点实验室,北京100084 [2]东北电力科学研究院有限公司系统所,沈阳110003

出　　处：《电力系统及其自动化学报》2010年第1期20-25,共6页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金重大项目(50595413);国家重点基础研究发展计划(2004CB217907)

摘　　要：针对电力系统稳定器(PSS)抑制低频振荡所基于的阻尼转矩概念,为将阻尼转矩的概念推广应用到多机系统中,提出一个把多机系统中的区域间振荡简化为一个两机系统模型,在两机模型中应用复转矩系数法的研究方法,说明基于单机无穷大系统的复转矩系数法推广应用到多机系统中的意义和合理性,推导基于两机模型的PSS补偿角度计算方法,并且通过比较说明该方法的计算结果与基于单机无穷大模型的计算结果存在差异。For the concept of damping torque which is the power system stabilizer （PSS） to damp low frequency oscillation based on, this paper extended the concept of damping torque into multi-generators system, and proposed a method that simplified the wide-area oscillation to a two-generators model and used the complex torque coefficient approach in this model. The connotation and rationality of using the complex torque coefficient approach is showed based on single generator tie line system in multi-generators system. The calculation approach of PSS offset angle in two generators model is deduced. Comparing the result of this approach with one based on single generator tie line system shows there are differences between two results.

关 键 词：低频振荡 多机系统 复转矩系数法 电力系统稳定器补偿角度 电力系统稳定器参数配置 

分 类 号：TM712[电气工程—电力系统及自动化]