计及配电网阻抗和无功补偿的完整综合负荷模型的参数辨识  

Parameter Identification of the Synthesis Load Model Considering Distribution Impedance and Compensation Capacitor

作　　者：陈谦[1] 汤涌[2] 鞠平[1] 张孝[1] 

机构地区：[1]河海大学能源与电气学院,江苏省南京市210098 [2]中国电力科学研究院,北京市海淀区100192

出　　处：《中国电机工程学报》2010年第22期44-50,共7页Proceedings of the CSEE

基　　金：国家杰出青年科学基金(50725723);"十一五"国家科技支撑计划重大项目(2008BAA13B02)~~

摘　　要：为了直接描述配电网的作用,中国电力科学研究院提出了综合负荷模型(synthetic load model,SLM)。其中需要辨识的参数较多,所以往往将电容补偿并入恒定阻抗,经常采用的是电动机并联恒定阻抗的简化SLM模型。然而,通过辨识获得的简化SLM模型可能会引起分析和计算中的一些不合理问题。针对计及配电网阻抗、电动机、静态负荷(ZIP)方程,提出参数辨识方法,包括辨识策略、初始化计算过程和无功补偿的完整SLM模型,给出考虑频率影响的模型以及辨识过程。通过仿真算例和应用实例,验证该方法的有效性。To describe the effect of distribution network directly, a synthetic load model （SLM） has been developed. The number of parameters to be identified in the model is increased, that the compensation capacitor is integrated in the constant impedance and the synthetic load model is simplified as a motor paralleled with a constant impedance. However, the identified model might raise some unreasonable problems in computation and analysis. The complete SLM, which consists of distribution impedance, motor, ZIP static load and compensation capacitor, was considered. A parameter identification method was proposed for the model, which includes strategies, process as well as initialization. Meanwhile, the frequency characteristics of load were taken into account. BPA simulation example and practical applications validated the method.

关 键 词：综合负荷模型 参数辨识 系统频率 配电网 无功补偿 

分 类 号：TM74[电气工程—电力系统及自动化]