摘要
提出了一种非线性差分方程形式的负荷模型与电力系统仿真计算程序接口的新方法,它同时适用于线性和非线性差分方程形式的负荷模型的时步转化问题。该方法利用差分方程结构简单、易于辨识的特点,将其辨识算法嵌入电力系统仿真计算程序中,解决了非线性差分方程的步长调整问题,使差分方程的计算步长可自动跟踪电力系统仿真计算步长的变化。利用实测的负荷动态响应数据验证了该方法的有效性。
A new method to interface the load model with the form of nonlinear difference equation with power system simulation programs is proposed. It is simultaneously suited to the synchronization of step length transform of load models in linear and nonlinear difference equation form. Using such features of difference equation as simple structure and easy to identify, the proposed method embeds its identification algorithm into power system simulation programs, so the adjustment of step length of nonlinear difference equation is solved and the calculation step length of difference equation is able to automatically trace the step length variation of power system simulation. The effectiveness of the proposed method is verified by the measured dynamic response data of the load.
出处
《电网技术》
EI
CSCD
北大核心
2005年第10期57-60,共4页
Power System Technology
基金
北京市自然科学基金项目(2003-8686)
国家电力公司重大科研项目~~
关键词
电力系统
暂态稳定仿真
负荷模型
差分方程
内嵌辨识算法
Algorithms
Computer simulation
Data acquisition
Difference equations
Electric load management
Mathematical models
