基于回路分析的回路类型转换与支路潮流越限处理  

Loop type conversion and regulation of line flow violation based on loop analysis

作　　者：王承民[1] 蒋传文[1] 黄锐 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200030 [2]广西钦州供电局,广西钦州530021

出　　处：《电工电能新技术》2005年第3期35-39,共5页Advanced Technology of Electrical Engineering and Energy

摘　　要：在π型等值的基础上,将负荷等值为电压源,而以阻抗支路为链支、接地支路为树支,建立网络的节点电压方程及回路电流方程,从而将潮流计算中的雅可比矩阵元素表示成以节点电压和回路电流为状态变量的函数的形式;并且定义了回路类型和Qθ节点类型,当支路潮流越限时,通过回路类型和节点类型的变换、调整相应节点的注入有功功率对越限支路潮流进行调整。在IEEE30节点系统上的检验证明这种方法是非常有效的。Node voltage and loop current functions of electric power network are established on the base of equivalent π-model network, with loads equivalent to a voltage source and impedance branches to the link branches and grounding branches to the tree branches, in order to expand the power flow equations as node voltage formulas with loop current formulas and to express the Jacob matrix as function with node voltage and loop current variables; in addition, the loop type and Qθ node type are defined. The loop and node types are transformed so as to regulate the injected nodal active powers and to control the line flow which limit is violated. The case study is made at IEEE-30 system and the better effect is proved.

关 键 词：节点电压 回路电流 潮流计算 

分 类 号：TM732[电气工程—电力系统及自动化]