摘要
为降低地线损耗,寻找合理的架空地线接地方式,结合贵州安八500 kV输电线研究了架空地线降耗接线方式。在分析地线损耗计算原理的基础上,通过电磁暂态计算软件ATPDraws建立计算模型,采用分段π型等值电路级联的方式,并借助ATP仿真模型,对安八500 kV输电线路架空地线的感应电流和感应电压进行分析,进而计算出在各种接线方式下的电能损耗。最后给出以降低超高压输电线路地线损耗为目的,同时综合考虑线路融冰和安全运行要求的架空地线最优接线方式。
For reducing loss of ground wire and looking for reasonable grounding way of overhead ground wire, this paper studies consumption reduction connection way of overhead ground wire by combining Guizhou Anba 501） kV transmission lines. On the basis of analyzing principles for ground wire consumption reduction calculation, it establishes calculation model by using electromagnetic transient calculation software ATPDraws. By using section n typed equivalent circuit cascade way and by means of ATP simulation model, it analyzes induced current and induced voltage of overhead ground wires of Anba 500 kV transmission lines and calculates electric energy loss under different connection ways. It proposes the optimal connec- tion way of the overhead ground wire which is to reduce ground loss of EHV transmission lines and consider requirements for melting ice and safe operation.
出处
《广东电力》
2013年第3期26-31,共6页
Guangdong Electric Power
关键词
500KV输电线路
架空地线
地线降耗
最优方案
500 kV transmission line
overhead ground wire
consumption reduction of ground wire
optimal scheme
