实测冲击负荷分析与建模  

Analysis and Modeling of Shock Load via Measurement

作　　者：贺仁睦[1] 王吉利[1] 史可琴 范越 万筱钟 杨文宇 

机构地区：[1]华北电力大学电气与电子工程学院,北京市昌平区102206 [2]西北电网有限责任公司,陕西省西安市710048

出　　处：《中国电机工程学报》2010年第25期59-65,共7页Proceedings of the CSEE

基　　金：国家重点基础研究发展计划项目(973项目)(2004CB217901);国家自然科学基金项目(50595410)~~

摘　　要：建立适合于电力系统稳定计算分析的冲击负荷模型至关重要。该文以最常见的硅铁和电解铝冲击负荷为例,分析冲击负荷的特点,依据建模策略,提出冲击负荷测量时的功率突变量启动录波判据。在此基础上,以中国西北电网实测的硅铁和电解铝冲击负荷数据,结合生产实际分析这2类典型冲击负荷对电力系统造成功率冲击的原因。考虑冲击负荷特点及负荷建模理论,建立一种合适的冲击负荷模型,并进行模型参数辨识。实测数据结果表明,所提出的冲击负荷模型能够反映冲击负荷的冲击特性和负荷特性。最后讨论建立的冲击负荷模型在复杂电网中的应用。To establish the accurate shock load model is very important for power system stability simulation and analysis. This paper analyzes the characteristics of two typical shock loads： electrolytic aluminium and silicoferrite, and puts forward the criterion of start-up recording data using power tripping criterion for the equipment of shock load characteristic Then the strategy of shock load modeling based on measurement data is presented. Furthermore, this paper analyzes the reason of the effect of shock load on the power system. In light of the characteristics of shock load and the theory on load modeling, a new shock load model is proposed. This model is suitable for power system stability analysis. The test results show the shock load model can reflect the shock load characteristics more accurately. The application of the shock load model in the complex power grid is also discussed.

关 键 词：电力系统稳定分析 冲击负荷 负荷的主动性 功率启动判据 

分 类 号：TM74[电气工程—电力系统及自动化]