2020 年以前我国电网出现更高一级交流电压等级的系统技术问题研究——全国联网和更高一级交流电压等级技术问题研究之二

TECHNICAL INVESTIGATION OF THE FUTURE CHINESE INTERCONNECTED POWER SYSTEMS AND HIGHER AC VOLTAGE (PART 2)——PROSPECTIVE APPLICATION OF HIGHER AC VOLTAGE OVER 500kV IN THE FUTURE CHINESE POWER SYSTEMS

文章结合目前规划的中、长距离输电项目，从系统的角度分析研究了２０２０年以前我国电网采用８００ｋＶ或１２００ｋＶ作为更高一级交流输电电压等级在系统中所起的作用和可能存在的系统技术问题，并对这两个交流输电电压等级进行了技术经济分析研究。

With regard to the middle and long distance power transmission line being planned and in the view of power system this paper studies the affects of applying higher voltage classes, i.e., 800kV and 1200kV, in future Chinese power system and the possible existing technical problems before the year of 2020, and analyses the economy and feasibility of applying these two higher voltage classes.