摘要
电力系统动态行为可归结为非线性微分-代数方程组,其中微分方程描述控制过程,而非线性代数方程是电力系统的潮流方程描述控制过程的运行点。潮流可行域的分析关键在于如何获取潮流解的临界边界,它涉及全面求解高维非线性代数方程所面临的数学难题,但非线性代数方程是稳态交流电路方程,是电网的综合描述,满足电路运行规律。从简单交流电路支路特性分析入手,提出了用电路理论确定电力系统潮流可行域的方法,以IEEE5节点系统作为潮流可行域的算例,并在RP﹡ORQ﹡平面上对算例电阻不为零的支路进行了潮流可行域的初步描述。
Dynamic behavior of electric power system is generalized a set of nonlinear differential and algebraic equations. The former presents the course of control. The later presents the controlling course of running node and discusses the problem for power flow. The key to analysis of power flow feasible region is how to gain the critical boundary for power flow solves, but it refers to the difficulties in mathematics to solve the high dimension nonlinear equations. Being a steady-state operating alternating current circuit （ACC） and a synthetic description about power network, the nonlinear equation satisfies ACC rules. By analyzing the simple alternating-current circuit, a determination of power flow feasible region method is given. It takes the IEEE5 node system as arithmetic example and describes power flow feasible region on the Rp. ORQ. plane for the branches whose resistance is not equal to zero.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第15期5-9,共5页
Power System Protection and Control
关键词
电力系统
交流电路
电路特性
潮流
可行域
electrical power system
alternating current circuit
electric circuit characteristics
power flow
feasible region
