特高压与超高压交流输电技术节能降耗比较研究

Comparison Study on Energy Saving and Consumption Reduction of UHV AC and EHV AC Transmission Technology

随着特高压交流技术的成熟应用,在面对主网架加强优化问题时,1000 kV与500 kV交流方案的综合比选显得尤为重要。为了获得经济最优,需对比特高压与超高压交流输电技术的节能降耗水平,因此针对1000 kV和500 kV交流输电技术,分析了交流输电损耗的构成、基本原理和计算方法,然后分别计算特高压交流与超高压交流的线路损耗、变压器损耗和站用电并折算成损耗率,从而分析1000 kV和500 kV交流输电技术节能降耗水平。

With the mature application of UHV AC technology,the comprehensive comparison and selection of 1000 kV and 500 kV AC solutions is particularly important when facing the problem of strengthening the optimization of the main grid.In order to obtain the economic optimum,the energy saving and consumption reduction level of bit high voltage and ultra high voltage AC transmission technology is required.Therefore,for 1000 kV and 500 kV AC transmission technologies,the composition,basic principles and calculation methods of AC transmission losses are analyzed.Then,the line loss,transformer loss and station power consumption of UHV AC and UHV AC are calculated and converted into loss rate,so as to analyze the energy saving and consumption reduction level of 1000 kV and 500 kV AC transmission technology.