Research on the Economy of UHVDC Transmission under the Background of Global Energy Interconnect

2018 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

材料科学;无线电电子学;计算机科学

Zhao, Zhi Qiang^1,4 ; Dai, Yong Min^1 ; Song, Xin Fu^2 ; Sun, Li Cheng^1 ; Nie, Hong Zhan^3

State Grid Xinjiang Electric Power CO., LTD, Urumchi

830002, China^1

State Grid Xinjiang Electric Power Economic Research Institute, Urumchi

830016, China^2

School of Electrical Engineering of Northeast Electric Power University, Jilin, 132012, China^3

School of Electrical Engineering of North China Electric Power University, Beijing

102206, China^4

关键词: Development trends;    Economic transmission;    Renewable energy development;    Scientific planning;    Transmission loss;    Transmission mode;    UHVDC transmission;    Ultra high voltage DC;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/439/5/052022/pdf
DOI  :  10.1088/1757-899X/439/5/052022

来源: IOP

【 摘 要 】

As the main transmission modes of global energy interconnect, studies on the application scope of economic transmission of ultra-high voltage DC (UHVDC) is of great significance to the scientific planning of power grids. This paper analyses the development trend of global energy interconnect in light of the trend of renewable energy development. Based on the study of the calculation method of annual cost per unit capacity of UHVDC transmission, a calculation method for the application scope of economic transmission is proposed. The UHVDC transmission configuration scheme is studied, the factors that affect the transmission loss of UHVDC project is analysed. On the basis of the unit-capacity annual cost method, taking into account changes in the different distance and power price of the UHVDC project, the economic transmission scope of ±800kV and ±1100kV voltage levels are also analysed.