典型架空输电线路地线电磁取能等效电路的分析Analysis of Equivalent Circuit for Tapping Electromagnetic Power From Overhead Ground Wires of Typical Transmission Lines
蒋兴良;谢彦斌;胡建林;曹永兴;范松海;刘益岑;
摘要(Abstract):
地线取能是输电线路在线监测装置较为理想的供电方式,其关键技术问题之一是如何获得足够的功率。取能功率的最大化必须以其等效电路为基础进行阻抗匹配设计。同时,取能电路输出电压的稳定性、可靠性也必须以其等效电路参数为基础。为此,以四川电力公司所辖的某220k V架空输电线路为例,对地线取能等效电路进行推导,并对其参数进行简化,在此基础上对地线最大取能功率进行计算与评估。此外,结合EMTP-ATP仿真对相关因素对等效电路的影响进行分析,供取能设计参考。最后,根据现场测量结果验证等效电路参数的理论计算结果。
关键词(KeyWords): 输电线路;地线取能;在线监测;等效电路
基金项目(Foundation): 国家创新研究群体基金项目(51321063)~~
作者(Author): 蒋兴良;谢彦斌;胡建林;曹永兴;范松海;刘益岑;
Email:
DOI: 10.13335/j.1000-3673.pst.2015.07.044
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