电网技术2012，Vol.36Issue(1)：39-44,6.
采用传输矩阵方法的多回超／特高压交流输电线路的电气不平衡度计算
Calculation on Electrical Unbalance of Multi-circuit EHV/UHV Transmission Lines by Transmission Matrix
摘要
Abstract
Unsymmetric electric paramters oJ non-transposed EHV/UHV transmission lines lead to unbalanc~ of voltage and current and it affects normal operation of load,~ located at the end of tranmsission lines, thus the degree of lin~ unbanlance have to be restricted within a certain range, and it i,, especially important for the design and operation oJ transmisssion line to accurately calculate the unbalance. Basec on multi-conductor transmission line （MTL） model a simpk and analytic method to calcualte the degree of transmission lin~ unbalance by transmission matrix is proposed and th~ correctness of the proposed method is verified by calculatior results with phase-mode method and 17 model. Calculatior errors of the proposed method, phase-mode method and Iq model method under different line lengths are analyzed Applying the proposed method to the calculation of electrical unbalance in transmission lines the accuracy of unbalanc~ calculation can be effectively imporved. Finally, the electrica unbalance of double-circuit transmission line is calculated b3 the proposed method.关键词
线路不平衡度/传输矩阵/多导体传输线/相模变换/n模型Key words
degree of unbalance/transmission matrix/multi-conductor transmission line/phase-mode transformation/FI model分类
信息技术与安全科学引用本文复制引用
施春华,芦洵,邹军,袁建生..采用传输矩阵方法的多回超／特高压交流输电线路的电气不平衡度计算[J].电网技术,2012,36(1):39-44,6.基金项目
2011年铁道部.清华大学科技研究基金资助项目.ProjectSupportedbytheMinistryofRailways-TsinghuaResearchFundsofScienceandTechnology,2011. （）
