中国电机工程学报2015，Vol.35Issue(20)：5375-5383,后插28,10.DOI:10.13334/j.0258-8013.pcsee.2015.20.032
高压直流输电线路分布参数测量新方法
A Novel Distributed Parameters Measurement Method of HVDC Transmission Line
肖遥 1邓军 1夏谷林 1杨晓峰 1张晋寅1
作者信息
- 1. 中国南方电网超高压输电公司检修试验中心,广东省广州市 510620
- 折叠
摘要
Abstract
In order to measure the distributed parameters such as the resistance, self-inductance, capacitance to ground, mutual inductance and coupling capacitance of a bipolar HVDC transmission line, the differential equations have been firstly established based on an improved circuit of the line,and further decomposed into the positive and zero sequence components of a two-phases AC circuit. Under the condition of the receiving terminals in the status of open circuit or short circuit, the positive sequence open circuit impedance and short circuit impedance have been measured respectively when a positive voltage has been applied on the sending terminals of the transmission line. Again the zero sequence open circuit impedance and short circuit impedances have been measured in the condition of the line in parallel connected while receiving terminals are in the status of open circuit or grounded short circuit. Then formulas to calculate distributed parameters have been deduced from the open circuit and short circuit impedances measured at both positive sequence and zero sequence modes. The measurement method has been tested on an±800kV UHVDC transmission line, and the measured results are highly consistent with the calculated theoretical data based on the designed geometrical dimensions of the line. Therefore, the measurement results can be used for protective setting, the RTDS and EMTDC simulation, and line fault location.关键词
HVDC输电线路/阻抗测量/IEEE标准/电力系统测量/测量标准/输电线路理论/线路参数测量Key words
HVDC transmission line/Impedance measurement/IEEE standards/Measurement/Measurement standards/Power system measurement/Power Transmission line measurement/Transmission line theory分类
信息技术与安全科学引用本文复制引用
肖遥,邓军,夏谷林,杨晓峰,张晋寅..高压直流输电线路分布参数测量新方法[J].中国电机工程学报,2015,35(20):5375-5383,后插28,10.
