中国电力 ›› 2013, Vol. 46 ›› Issue (12): 144-150.DOI: 10.11930/j.issn.1004-9649.2013.12.144.6

• 电力规划 • 上一篇    下一篇

四川电网季节性电能外送曲线优化

陈汉雄   

  1. 中国电建四川电力设计咨询有限责任公司,四川 成都 610016
  • 收稿日期:2013-09-05 出版日期:2013-12-23 发布日期:2015-12-10
  • 作者简介:陈汉雄(1971—),男,四川成都人,硕士,高级工程师,从事电力系统规划设计及直流输电系统控制研究工作。

Transmission Curves Optimization of Sichuan Grid’s Seasonal Electric Energy

CHEN Han-Xiong   

  1. PCCC Sichuan Electric Power Design & Consulting Co., Ltd., Chengdu 610016, China
  • Received:2013-09-05 Online:2013-12-23 Published:2015-12-10

摘要: 为实现四川水电丰期更多季节性电能外送,减少四川电网丰水期弃水电量,发挥国网公司川西3回±800 kV特高压直流强大的送电能力、提高工程建设的经济效益和实现更大范围内的节能减排,在川西3回±800 kV特高压直流常规送电方式基础上,通过分析四川电网丰期弃水问题特征、送端水电站水文出力特性,提出了优化丰水期四川电网外送华东电网3回特高压直流7—10月的送电协议曲线,增加“丰小、丰腰”方式下川电外送华东电网的电力电量。研究表明:优化国网公司川西3回±800 kV直流送电协议曲线后,2015年平水年四川电网丰期可实现向华东电网增送约55亿kW·h季节性电能,增加国网公司川西3回±800 kV特高压直流输电工程利用小时数约100~350 h,经济效益显著。

关键词: 电力系统, ±, 800kV特高压直流输电, 弃水, 送电曲线

Abstract: In order to take advantage of the strong transmission capability of the SGCC’s three ±800 kV UHVDC transmission lines to increase the outbound delivery of Sichuan’s seasonal electric energy in flood season and reduce water abandon-related power loss of Sichuan power grid, based on an analysis of the water abandon characteristics of Sichuan grid in flood season and the hydrological output features of hydropower stations, it is proposed in this paper to optimize the transmission curves of three ±800 kV UHVDC power transmission lines and increase the delivery power of Sichuan grid to East China Grid in high flow period. The study shows that it can be realized to increase the delivery output of the Sichuan grid’s seasonal electric energy by 5 500 GW·h through optimizing the 3-circuit UHVDC transmission curves in 2015.

Key words: power system, ±800 kV UHVDC, water abandon, power transmission curve

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