电力负荷的电压动态稳定性的数值仿真方法

The Numerical Simulation Method of Voltage Dynamic Stability of Electric Load

电压稳定问题是电力系统的重要研究课题,利用仿真技术可实现电压稳定问题分析。对电力负荷的电压特性进行研究,在电力负荷动态模型及其小扰动分析的基础上,构建系统动态电压稳定的微分-代数方程组,利用Matlab软件编程求解,绘制负荷的电压动态稳定曲线,实现了电力负荷的电压动态稳定过程的数值仿真,为研究电压稳定特性及电压失稳过程提供了一种有效的仿真方法。

The voltage dynamic stability problemis an important subject for the power system. The use of simulation techndogy can realize the problem analysis of the votage stability. The voltage characteristic of toad electric loads is studied in the paper. On the basis of the dynamic model of the electric load and its small disturbance analysis,structure the system dynamic voltage stability differential-algebra equation. Use matlab software to make program,draw the load voltage dynamic stability curves soas to realize the numerizal simulation of the voltage dynamic stability procedure of the power load. It provides an effective simulation method for studying voltage stability and voltage unstability process.