摘要
特高压直流(UHVDC)风火联合外送可实现西部、北部风电跨区远距离输送,扩大风电消纳范围。提出了优化特高压直流风火打捆外送配套电源规模的研究方法,首先研究了UHVDC输送火电、风电的技术性约束,包括UHVDC输电运行方式,以及对风电、火电配套规模的影响,提出了配套电源的研究原则及思路;其次,建立了特高压直流风电、火电联合外送配套电源规模的优化方法;最后,以酒泉—湖南±800 k V特高压直流输电工程为例,给出了酒泉—湖南特高压直流风电、火电配套规模,验证了方法的科学性。提出的研究方法对扩大我国北部风电消纳范围,提高特高压直流通道输送效率具有重要意义。
UHVDC combined wind-thermal power transmission can resolve the long-distance transmission of wind power from western and north,and expand the accommodation range of wind power. This paper presented research method for the auxiliary power supply scale optimization of UHVDC wind-thermal power bundled transmission. First of all,this paper studied the technical constraints of wind-thermal power transmission through UHVDC,including the operation mode of UHVDC transmission and its influence on the scale of wind-thermal power,as well as proposed the research principles and ideas of auxiliary power supply. Secondly,the optimization method for auxiliary power supply scale of UHVDC combined wind-thermal power transmission was studied. Finally,taking the Jiuquan-Hunan ± 800 k V UHVDC project as an example,this paper presented the wind-thermal power scale in Jiuquan-Hunan UHVDC,and verified the scientificity of the proposed method. The proposed method has great significance for expanding the accommodation range of wind power in the north of our country and improving the transmission efficiency of UHVDC transmission.
出处
《电力建设》
北大核心
2015年第10期60-66,共7页
Electric Power Construction
基金
国家电网公司科技项目(促进新能源消纳和提升电网综合效益的电力系统规划技术研究)
关键词
特高压直流
风电
火电
打捆外送
UHVDC
wind power
thermal power
bundled transmission
