计及特高压直流输电特性的沙戈荒基地输-储协同规划方法  

Transmission-Storage Collaborative Planning Method for the Bases in the Gobi and Desertification Land Accounting for UHVDC Transmission Characteristics

作　　者：孙一丁 王千辰 谢忱峥 郭国栋 刘栋 孙英云[1] SUN Yiding;WANG Qianchen;XIE Chenzheng;GUO Guodong;LIU Dong;SUN Yingyun(School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China;State Grid Economic Research Institute Co.,Ltd.,Beijing 102209,China)

机构地区：[1]华北电力大学电气与电子工程学院,北京市102206 [2]国网经济技术研究院有限公司,北京市102209

出　　处：《电力建设》2025年第3期72-84,共13页Electric Power Construction

基　　金：国家重点研发计划项目(2023YFB2405900)。

摘　　要：在“双碳”目标背景下,我国正在大力建设沙漠、戈壁、荒漠(简称“沙戈荒”)等地区大型风光发电基地,由于风光出力具有强随机性和波动性,沙戈荒基地外送系统存在运行不确定性与失负荷风险,传统的特高压直流输电功率曲线拟定方法与输-储协同规划方法难以用于沙戈荒基地的电力外送。首先针对风光出力具有不确定性的特点,提出典型特高压直流输电功率曲线集构建方法;其次,结合场景距离,提出基于条件风险价值理论的系统失负荷风险量化指标,并建立沙戈荒基地配套输-储协同规划模型;最后,选取沙戈荒风光火储一体化发电基地进行算例分析,结果表明所提方法能够适应多种风光出力场景,实现了沙戈荒基地新能源消纳最大化,验证了所提方法的有效性。Under the"Dual Carbon"goals,China is accelerating the construction of large-scale wind and solar power generation bases in the Gobi and desertification land.The inherent randomness and volatility of wind and solar power outputs introduce significant uncertainties and the risk of load shedding for the operation of the bases in the Gobi and desertification land and their external transmission systems.Traditional ultra-high voltage direct current(UHVDC)power curve formulation and transmission-storage collaborative planning methods are inadequate for the power delivery from the bases in the Gobi and desertification land.Therefore,this paper proposes a typical UHVDC transmission power curve set construction method firstly,addressing the uncertainty of wind and solar power output.Furthermore,this paper introduces a system load shedding risk quantification index that based on conditional value-at-risk(CVaR)theory and develops a transmission-storage collaborative planning model tailored to the bases in the Gobi and desertification regions.Finally,a case study is conducted on the wind-solar-thermal-storage integrated power generation base in the Gobi and desertification land.The results demonstrate that the proposed method effectively accommodates diverse wind-solar output scenarios and maximizes the renewable energy utilization,thereby validates the feasibility and effectiveness the proposed approach.

关 键 词：沙戈荒基地 特高压直流 输电功率曲线 条件风险价值理论 输-储协同规划 

分 类 号：TM715[电气工程—电力系统及自动化]