非线性系统的多项式近似表示及电力系统应用(Ⅱ)——应用篇  

Polynomial approximation of a nonlinear system and its application to power system (Ⅱ):Applications

作　　者：孙玉娇[1] 刘锋[1] 梅生伟[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

出　　处：《电机与控制学报》2010年第9期7-12,共6页Electric Machines and Control

基　　金：国家自然科学基金资助项目(50823001;50977047)

摘　　要：利用半张量积方法对电力系统非线性模型的多项式近似系统进行表达,根据电力系统非线性模型的多项式近似系统的特点,利用多项式近似系统分析原系统平衡点及稳定性。以一个单机无穷大系统及一个三机系统为例进行了测试,验证了利用多项式近似系统研究原系统平衡点及稳定域边界近似方法的有效性。The polynomial approximate system of a general nonlinear power system model is expressed by using the semi-tensor product method.And based on the characteristics of the polynomial approximate system for the general nonlinear power system model,the equilibrium points （EPs） and the stability region of the original system are analyzed.A single-machine infinite-bus system and a three-machine system are tested to verify the validity of the studying of the EPs and the approximate boundary of the stability region of the original system by using its polynomial approximate system.

关 键 词：半张量积 电力系统 多项式系统 平衡点 稳定域 

分 类 号：TM711[电气工程—电力系统及自动化] TM712