基于数值微分法求导的分布式发电系统仿真算法  

A Stability Simulation Method of Distributed Generation System Based on Numerical Differentiation Method

作　　者：王丹[1] 王成山[1] 

机构地区：[1]天津大学电力系统仿真控制教育部重点实验室,天津市300072

出　　处：《电力系统自动化》2009年第17期81-85,共5页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(50625722);国家重点基础研究发展计划(973计划)资助项目(2009CB219700)~~

摘　　要：针对分布式发电系统模型结构灵活多变的特点,采用数值微分求导方法计算隐式积分迭代算法中的雅可比矩阵,进而构造了一种适用于分布式发电系统稳定性仿真的数值积分算法。该算法简化了雅可比矩阵的获取过程且具有并行特征,特别适用于具有变结构特征的系统模型的仿真。算例分析证明了所提出算法的优越性。Considering the flexibility and variety of the distributed generation system structure, the numerical differentiation method is adopted to get the Jacobian matrix for implicit integration algorithm. Then a numerical integration scheme suitable for stability simulation of the distributed generation system is constructed subsequently. Through this algorithm, Jacobian matrix acquisition process can be simplified and the procedure exhibits parallel characteristics. Moreover, the proposed method is especially suitable for stability simulation involving variable-structure models. Simulation results are given to validate the accuracy and efficiency of presented algorithm.

关 键 词：分布式发电系统 稳定性仿真 数值微分法 变结构仿真 

分 类 号：TM744[电气工程—电力系统及自动化]