变阶多步Taylor级数法暂态稳定并行计算  

Parallel transient stability calculation by multi-step dynamic-order Taylor method

作　　者：夏世威[1] 郭志忠[1] 陈士麟[2] 徐英[3] 

机构地区：[1]哈尔滨工业大学电气工程系,黑龙江哈尔滨150001 [2]台湾中原大学电机系,台湾30013 [3]华北电网有限公司,华北电力调度通信中心,北京100053

出　　处：《电力系统保护与控制》2012年第22期25-31,共7页Power System Protection and Control

摘　　要：多步高阶Taylor级数法是电力系统暂态稳定分析的有效工具,但其尚未实现灵活阶数控制和并行计算技术相结合,因此Taylor级数法有待于进一步改进。基于数值稳定域理论,构造了具有较好稳定域的多步变阶Taylor级数法,并结合电力系统暂态稳定仿真计算特点,根据计算精度要求实现Taylor级数阶数的灵活控制;同时提出了结合并行技术的高阶Taylor级数的空间并行暂态稳定分析方法。New England 10机39节点算例验证了所提方法数值稳定性好,能消除固定阶数多步Taylor级数法计算冗余,和并行计算结合能有效提高暂态稳定分析效率。Though multi-step high order Taylor method is an effective tool for power system transient stability analysis, it needs further improvement by dynamic order control and parallel calculation strategy. Based on the numeric stable domain theory, this paper proposes a novel multi-step dynamic-order Taylor method. With the characteristics of transient stability analysis, the paper adopts different derivative order for Taylor expansion according to the simulation accuracy. Furthermore, based on parallel calculation technology, a high order Taylor parallel transient stability analysis strategy is proposed. Finally, the result of New England 10-machine 39-bus system shows the proposed parallel dynamic-order Taylor is a good transient stability analysis tool with a stable numerical region and could eliminate the calculating redundancy of fixed-order Taylor method; and it efficiently improves the transient stability analysis efficiency when combined with parallel calculation technology.

关 键 词：电力系统 暂态稳定分析 TAYLOR级数 稳定域 动态变阶 并行计算 

分 类 号：TM712[电气工程—电力系统及自动化]