一种适用于分布式发电系统的显式—隐式混合积分算法  

An Explicit-implicit Hybrid Integration Algorithm for Distributed Generation Systems

作　　者：王成山[1] 彭克[1] 李琰[1] 武震[1] 孙充勃[1] 

机构地区：[1]智能电网教育部重点实验室,天津大学,天津市300072

出　　处：《电力系统自动化》2011年第19期28-32,共5页Automation of Electric Power Systems

基　　金：国家重点基础研究发展计划(973计划)资助项目~~

摘　　要：针对分布式发电系统的典型特征,提出了一种适用于分布式发电系统的显式—隐式混合积分算法。分布式发电系统中电力电子元件具有较快的动态特性,而分布式电源本身如燃料电池、风机、微型燃气轮机、蓄电池等动态响应较慢,根据这一特性设计了算法的划分原则,针对快动态电力电子元件采用隐式积分算法,针对慢动态分布式电源采用显式积分算法,同时兼顾了显式积分算法计算速度快,隐式积分算法数值稳定性好的优点,且对微电网变结构操作具有较好的适应性。最后,在仿真平台上验证了所提出算法的正确性与有效性。Aimed at the typical characteristic of distributed generation system, an explicit-implicit hybrid integration algorithm suitable for distributed generation system is proposed. Power electronic components in the distributed generation system have relatively fast dynamics, while distributed sources such as fuel cell, wind turbine, micro gas turbine, batteries etc, possess relatively slow dynamics. Based on this characteristic, a division principle for stiff bystem is designed. For power electronic components with fast dynamics, implicit integration algorithm is used and for distributed sources with slow dynamics, explicit integration algorithm is adopted. The advantages of fast calculation speed of explicit integration algorithm, numerical stability of implicit integration algorithm, and the adaptability to the variable structure operation of mierogrid are all considered. Finally, the correctness and effectiveness of the proposed algorithm is verified by simulation.

关 键 词：分布式电源 刚性系统 积分算法 暂态仿真 显式积分 隐式积分 

分 类 号：TM744[电气工程—电力系统及自动化]