基于半经验法±800 kV高压直流输电线路合成场强计算研究  

Research on the Calculation of Electric Field Strength for±800 kV HVDC Transmission Lines Based on the Semi-empirical Method

作　　者：张鹏 ZHANG Peng(Jin Control Power Tonghua Shanxi Power Generation Co.,LTD,Shanxi Xinzhou 034114,China)

机构地区：[1]晋控电力同华山西发电有限公司,山西忻州034114

出　　处：《广西电力》2023年第1期32-37,共6页Guangxi Electric Power

摘　　要：针对直流线路合成场强现有计算方法半经验法展开分析,通过具体的计算过程来验证半经验法的计算结果的有效性和正确性。进而通过半经验公式计算方法,对锦屏到苏南特高压直流输电线路进行研究,这条特高压直流线路是从锦屏到苏南,这两座是建设的±800 kV换流站,是标准的输送容量为720万千瓦、最大的不间断输送容量为760万千瓦的换流站,具有代表性,对在没有产生饱和电晕情况下的合成场强进行计算。证明锦屏到苏南直流线路的合成场强符合我国制定的相应标准。The semi-empirical method,which is the current calculation method of DC line synthetic field strength,is analyzed to verify the validity and correctness of the calculation results of the semi-empirical method through the specific calculation process.Further,the UHV DC transmission line from Jinping to southern Jiangsu is studied through the semi-empirical formula calculation method.This UHV DC line is from Jinping to southern Jiangsu.These two are constructed ±800 kV converter stations,which are representative of the standard transmission capacity of 7.2 million kilowatts and the maximum uninterrupted transmission capacity of 7.6 million kilowatts.The composite field strength without saturation corona is calculated.It is proved that the synthetic field strength of the DC line from Jinping to southern Jiangsu meets the corresponding standards formulated by China.

关 键 词：特高压直流输电 电晕 半经验法 合成场强 环保性 

分 类 号：TM75[电气工程—电力系统及自动化]