基于混合编程技术的电力系统低频振荡辨识软件设计  

Design on Low-frequency Oscillation Identification Software for Power System Based on Hybrid Programming

作　　者：孙景涛 SUN Jingtao(Foshan Power Supply Bureau of Guangdong Power Grid Co. , Ltd. , Foshan, Guangdong 528000,Chin)

机构地区：[1]广东电网有限责任公司佛山供电局,广东佛山528000

出　　处：《广东电力》2018年第4期90-94,共5页Guangdong Electric Power

摘　　要：开发了一种基于总体最小二乘法-旋转不变技术算法的电力系统低频振荡模式参数辨识的应用软件,该软件利用MATLAB与Visual C++混合编程技术,实现了对电力系统低频振荡模式参数的识别,为低频振荡的分析计算提供便利的技术支持。软件采用VC++构建系统框架和实现界面绘制,应用MATLAB实现矩阵计算和绘图,发挥了MATLAB计算和绘图方便的优点,克服了M文件运行过于依赖MATLAB环境的缺陷;通过"四机两区"和实际电网系统的振荡数据验证本软件的有效性和实用性。结果表明本软件计算速度快,能在相对较短的时间内给出辨识结果。The paper develops a kind of application software for identifying parameters of low-frequency oscillation mode of the power system based on total least squares-estimating signal parameters via rotational invariance techniques（TLS-ESPRIT）.This software uses MATLAB and Visual C＋＋ hybrid programming technology to realize identification for parameters of low-frequency oscillation mode of the power system and provide convenient technical support for analyzing low-frequency oscillation.The software adopts VC＋＋ to construct the system framework and realize interface drawing and uses MATLAB for matrix calculation and drawing.The software has developed advantages of MATLAB in calculation and drawing and overcome the defect of M document operation excessively depending on MATLAB environment.Oscillation data of the 4-machines and 2-areas system and the actual power grid system verifies effectiveness and practicability of the software.Corresponding results indicate this software can provide identification results in a comparatively short time.

关 键 词：低频振荡 模式辨识 VC++ 混合编程 电力系统 四机两区 

分 类 号：TM712[电气工程—电力系统及自动化]