电力系统稳定器设计的广义相位补偿法  

Generalized phase compensation method for power system stabilizer design

作　　者：王冠楠[1] 孙黎滢[2] 甘德强[1] 王彬彬[3] 辛焕海[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027 [2]国网浙江省电力公司经济技术研究院,浙江杭州310008 [3]南京理工大学紫金学院电子工程与光电子技术系,江苏南京210023

出　　处：《浙江大学学报（工学版）》2014年第7期1295-1303,共9页Journal of Zhejiang University：Engineering Science

基　　金：国家自然科学基金资助项目(51177146);国家电网浙江省电力公司资助项目(浙江海上风电场选型;落点及其对电网稳定运行的影响研究)

摘　　要：针对经典相位补偿法理论背景不完善、无法应用于多机系统的问题,从代数学的角度提出简单的特征值实部表达式,应用该式从新的角度分析单机无穷大系统中出现负阻尼现象的原因,解释了电力系统稳定器抑制振荡的机理.将该式推广至多机系统,导出适用于多机系统的稳定判据,该判据可以用于稳定器相位补偿参数设计和PSS选址.稳定器增益整定问题被转化为一个只包含少数变量和约束条件的多项式优化问题,介绍2种不同的方法进行求解.通过4个典型系统的算例分析,验证了该方法的可行性和正确性.A simple eigenvalue representation was introduced from algebraic point of view in order to remedy the deficiencies of traditional phase compensation method which is lack of theoretical background and inapplicable to multi-machine systems.Then the celebrated phase compensation principle in the single-machine infinite bus system was justified and the mechanism how PSS suppresses system oscillation was explained.A stability criterion of multi-machine systems was presented,which can be used to find compensation angle for machines and solve the PSS siting problem.The problem of gain coordination was reduced to a polynomial optimization problem with only several variables and constraints,and it was solved by two different methods.Simulations of four different systems were described.Results show that the suggested method is both feasible and correct.

关 键 词：低频振荡 特征根实部表达式 广义相位补偿法 电力系统稳定器设计 

分 类 号：TM712[电气工程—电力系统及自动化]