南方电网技术Issue(2)：96-98,3.
一种三相非对称输电线路工频阻抗参数测试方法
A New Measurement Method for Power Frequency Impedance Parameters of Three Phase Asymmetric Transmission Lines
尹建华 1赵艳军 2陈晓科 2赵进全 3李贺龙3
作者信息
- 1. 南方电网科学研究院，广州510080
- 2. 广东电网公司 电力科学研究院，广州510080
- 3. 西安交通大学，西安710049
- 折叠
摘要
Abstract
For the measurement of the power frequency parameters of the three phase asymmetric transmission lines, a new method of anti-high inductive interference voltage is proposed in this paper. Based on the assumption that inductive interference voltage is constant in a short time, and with application of a single-phase test power to the three-phase transmission lines, the mathematical model of the new method is built up. With the model, the calculation formulas for sequence impedance and sequence mutual impedance are deduced and the quantitative evaluation of the line asymmetry is given. The method reduces the influence of high inductive interference voltage greatly on the power frequency impedance measurement of transmission lines, and has features of simple measurement, low capacity of test power, and high precision. The measurement and calculation results of a case show the validity of the proposed method.关键词
非平衡输电线路/工频阻抗参数/抗高感应干扰电压/测试方法Key words
asymmetric transmission lines/power frequency impedance parameters/anti-high inductive interference voltage/measurement method分类
信息技术与安全科学引用本文复制引用
尹建华,赵艳军,陈晓科,赵进全,李贺龙..一种三相非对称输电线路工频阻抗参数测试方法[J].南方电网技术,2013,(2):96-98,3.
