基于SCADA和WAMS的线路参数辨识研究  

Identification Study of Transmission Line Parameters Based on SCADA and WAMS

作　　者：王启龙 吴衍达 慈文斌 曹建梅 张亚萍[4] 

机构地区：[1]国网山东省电力公司菏泽供电公司,山东菏泽274012 [2]国网山东省电力公司,济南250001 [3]国网技术学院,济南250002 [4]山东大学电气工程学院,济南250061

出　　处：《山东电力技术》2017年第3期42-46,共5页Shandong Electric Power

摘　　要：线路参数是电力系统运行控制的基础,其准确性直接影响电力系统自动化的决策水平。在分析SCADA量测数据与WAMS量测数据特点的基础上,提出基于不同类型量测数据的参数辨识模型。应用实测数据对500kV线路的参数进行辨识,验证了文中所提方法的工程实用性。从辨识模型、辨识方法、辨识结果等方面分析了使用不同类型量测数据进行参数辨识的异同点。为电力系统调度人员更新数据库中线路参数提供依据。Transmission line parameter is the fundament for power system operation and control. The accuracy of the transmission line parameters directly affects the decision making level of power system automation.Based on analysis of the characteristic of SCADA measurement data and WAMS measurement data, the parameter estimation model based on different measurement data is proposed.Parameters of a 500 kV transmission line are estimated with different type of field measurement data to check the practicability of the proposed method. Differences and similarities of parameter estimation based on the different type measurement data are analyzed in respect of estimation model, estimation method and estimation parameter result. The estimation parameters provide a basis for updating the database parameters for engineers.

关 键 词：电力系统 监视控制与数据采集 广域测量系统 线路参数 

分 类 号：TM744[电气工程—电力系统及自动化]