全清洁能源特高压青豫直流初期打捆外送模式

doi:10.11930/j.issn.1004-9649.202007220

中国电力 ›› 2021, Vol. 54 ›› Issue (7): 83-92.DOI: 10.11930/j.issn.1004-9649.202007220

全清洁能源特高压青豫直流初期打捆外送模式

贺元康^1,2, 刘瑞丰¹, 陈天恩¹, 别朝红²

1. 国家电网公司西北分部，陕西西安 710048;
2. 西安交通大学电气工程学院，陕西西安 710049

收稿日期:2020-08-07 修回日期:2021-02-03 发布日期:2021-07-12
作者简介:魏明奎(1970-),男,高级工程师,从事电力系统运行与控制、电力系统规划等研究,E-mail:wmk1666@163.com;宋雨妍(1994-),女,通信作者,博士研究生,从事高压直流输电、电力系统稳定与控制、新能源接入等研究,E-mail:yuyan_syy@163.com;王渝红(1971-),女,博士,教授,从事高压直流输电、电力系统稳定与控制、新能源接入等研究,E-mail:yuhongwang@scu.edu.cn
基金资助:
国家重点研发计划资助项目(2016YFB0901900)；国家自然科学基金资助项目(51977166)；国家电网有限公司管理咨询项目(SGNW0000DKWT2000176)，国家电网有限公司科技项目(SGNW0000DKJS2000167)

Exploration of Bundled Transaction Model for All Clean Energy Transmission of Qing-Yu UHV DC Project

HE Yuankang^1,2, LIU Ruifeng¹, CHEN Tian'en¹, BIE Zhaohong²

1. Northwest China Branch of State Grid Corporation of China, Xi'an 710048, China;
2. School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received:2020-08-07 Revised:2021-02-03 Published:2021-07-12
Supported by:
This work is supported by National Key R&D Program of China (No.2016YFB0901900), National Natural Science Foundation of China (No.51977166), Management Consulting Project of SGCC (No.SGNW0000DKWT2000176), Science and Technology Project of SGCC (No.SGNW0000DKJS2000167)

摘要/Abstract

摘要： 全清洁能源特高压青豫直流工程顺利投产初期，由于配套电源尚未全部投运，青海水电峰枯季节出力差异较大，新能源出力随机性、间歇性和波动性问题突出，仅依托青海难以满足直流大功率稳定输电要求。在深入分析青豫直流送端青海电网的负荷特性和发电特性的基础上，开展青豫直流外送电力平衡分析，针对存在的峰盈谷缺和汛富枯贫问题，提出发挥西北电网整体合力，实现西北多省份清洁能源打捆外送的模式，在新能源大发、新能源小发、黄河丰水期、黄河枯水期4种场景下开展模拟测算，结果表明，通过清洁能源打捆外送可有效提升特高压青豫直流稳定外送水平。

关键词: 打捆交易, 全清洁能源, 曲线匹配, 电力平衡

Abstract: At present, the Qing (Qinghai)-Yu(Henan) UHV DC Project for all-clean energy transmission has been put into operation, but the supporting power sources have not been fully put into production yet. Due to the big output difference of hydropower between flood and dry seasons, and the stochastic, intermittent and fluctuating characteristics of wind and photovoltaic power output, it is hard to meet the requirements for large-power and stable transmission of Qing-Yu UHV DC Project by Qinghai Grid alone. Based on an investigation of the load and generation characteristics of the sending-end Qinghai Grid, a power balance analysis is carried out for the outbound transmission of the Qing-Yu DC Project. Aiming at the problems of surplus in peak time while shortage in valley time, and rich in flood season while poor in dry season for power output in the Qinghai Grid, the paper proposes a bundled clean energy transaction model for multiple provinces in the northwest region, so as to give a full play of the overall dispatching role of the Northwest Power Grid. Simulations are carried out under four scenarios, including the new energy enrichment and barren periods, the flood season and the dry season of the Yellow River. The results show that the bundled transaction of clean energy can significantly improve the stable outbound transmission level of the Qing-Yu UHV DC Project.

Key words: bundled transaction, all-clean energy, curve matching, power balance

贺元康, 刘瑞丰, 陈天恩, 别朝红. 全清洁能源特高压青豫直流初期打捆外送模式[J]. 中国电力, 2021, 54(7): 83-92.

HE Yuankang, LIU Ruifeng, CHEN Tian'en, BIE Zhaohong. Exploration of Bundled Transaction Model for All Clean Energy Transmission of Qing-Yu UHV DC Project[J]. Electric Power, 2021, 54(7): 83-92.

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全清洁能源特高压青豫直流初期打捆外送模式

Exploration of Bundled Transaction Model for All Clean Energy Transmission of Qing-Yu UHV DC Project

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全清洁能源特高压青豫直流初期打捆外送模式

Exploration of Bundled Transaction Model for All Clean Energy Transmission of Qing-Yu UHV DC Project

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