考虑风火联合外送的互联系统随机生产模拟  

Probabilistic Production Simulation of Interconnected System by Considering the Joint Delivery of Wind Power and Thermal Power Generation

作　　者：姚力[1] 黄镔[2] 王秀丽[1] 印永华[2] 侯孚睿 

机构地区：[1]西安交通大学电气工程学院,陕西省西安市710049 [2]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2015年第5期1219-1225,共7页Power System Technology

基　　金：国家863高技术研究发展计划资助项目(2011AA05A103);国家电网公司科技项目(XT71-11-022)~~

摘　　要：西北地区可再生能源资源与电力需求不平衡的现状,使得发展风火联合外送成为促进新能源消纳的重要举措。而风电出力的不确定性给风火联合外送的经济性、可靠性效益评估造成了困难。针对该问题,文章采用风电多状态模型,引入机组剩余容量的概念,提出了联合外送概率模型以模拟送端电网对受端电网的电力支援过程。结合各类型电源特点,设计了考虑风火联合外送的互联系统随机生产模拟算法框架。通过EPRI 36算例验证了所提方法的有效性,并且通过对酒泉—湖南±800 k V直流输电工程进行随机生产模拟,研究了酒泉直流对受端电网充裕度的改善、酒泉直流的环保效益以及直流输电利用小时数对酒泉直流经济性的影响。Due to the unbalance of renewable energy sources and electricity demand, the development of joint delivery has been an important measure to accommodate new energy in the northwest China grid. The uncertainty nature of wind power produce difficulty for the evaluation of economic and reliability benefits of joint delivery. To solve this problem, by means of establishing multistate wind power model, this paper introduces the concept of residual capacity and propose a probabilistic model for joint delivery to simulate the process of electric power support from sending-end to receiving-end. Moreover, combined with specific characteristics of different generators, a probabilistic production simulation algorithm flame, which considers joint delivery of wind and thermal power generation, has been developed. Taking EPRI 36-bus testing system as the case, the validity of the proposed method is verified. More importantly, with probabilistic production simulation of Jiuquan-Hunan ＋800 kV HVDC project, adequacy benefits of receiving-end, environment benefits as well as effect of utilization hours of HVDC on the economic benefits of Jiuquan HVDC has been studied.

关 键 词：随机生产模拟 联合外送 概率模型 互联效益 

分 类 号：TM712[电气工程—电力系统及自动化]