广东电网风电出力特性分析及其经济性评价
- 格式:pdf
- 大小:907.49 KB
- 文档页数:5
2012年第6卷第1期南方电网技术特约专稿
2012,V ol. 6,No. 1 SOUTHERN POWER SYSTEM TECHNOLOGY Featured
Articles 文章编号:1674-0629(2012)01-0008-05 中图分类号:TM614 文献标志码:A 广东电网风电出力特性分析及其经济性评价
樊扬1,林勇1,徐乾耀2,张宁2,陈新宇2
(1. 广东电网公司电网规划研究中心,广州510600;2. 清华大学电机系,北京100084)
摘要:风电出力特性的研究对于低碳经济发展大背景下含规模风电接入的电力系统规划运行至关重要。基于风电场群的
分区分片划分和多风电场运行模拟技术,定量分析了广东规模风电的出力特性和容量效益。研究表明,规模风电接入将
增大系统调峰需求,需要在电网规划建设和风电配套政策制订方面引起足够重视。从系统运行成本、煤耗、污染物排放
等多个角度进行的经济性评价显示,尽管规模风电接入对常规机组替代作用相对有限,但对于广东节能减排与低碳发展
具有重要意义。
关键词:规模风电;运行模拟;风电出力特性;容量效益
Analysis on the Characteristics of Wind Power Output in Guangdong Power
Grid and Its Economic Evaluation
FAN Yang1, LIN Yong1, XU Qianyao2, ZHANG Ning2, CHEN Xinyu2
(1. Grid Planning & Research Center of Guangdong Power Grid Corporation, Guangzhou 510600, China;
2. Department of Electrical Engineering, Tsinghua University, Beijing 100084, China)
Abstract: To study the characteristics of wind power output is very important for the planning and operation of a power system
integrated with a large scale of wind power under the background of low-carbon development. Based on the simulation of the
operation of a wind farm group integrated with district wind farms, this paper analyzes quantitatively the characteristics of wind
power output and its economic evaluation in Guangdong Power Grid (GPG). The results show that to integrate a large scale of wind
power in a power system increases the requirement of peak load regulation of the system so greatly that it must be considered
carefully in the system planning and wind power policy making. The economic evaluation in terms of the system operation cost, coal consumption, pollutant discharge, etc. indicates that a large scale of wind power is of great significance to energy saving, emission
reduction and low carbon development for Guangdong province though its effect of replacing the traditional units is relatively limited.
Key words: a large scale of wind power; operation simulation; wind power output characteristics; capacity benefit
随着电力系统中风电装机规模和占总装机比例的逐步增加,风电出力的间歇性、波动性和反调峰特性将会进一步影响电力系统的安全稳定和经济运行[1-2]。分析区域电网规模风电的出力特性,加强风电相关基础研究,对规模风电发展下的电力系统规划建设至关重要。
本文结合广东远景风电发展规划,采用多风电场运行模拟技术,对广东规模风电的出力特性、容量效益以及技术经济特性进行了定量分析。
1广东风电发展潜力及规划
广东属于亚热带海洋性季风气候,冬季盛行东北季风、夏季盛行西南季风。全省可开发利用的风能资源主要分布在沿海地区、近海海上和内陆的高山一带,其中以沿海地区和近海海上风能资源最为丰富。
广东全省先后开展了4次陆上风能资源普查工作。根据2004年省政府组织开展的全省风电资源评价结果,广东省陆上(含海岛)风能资源理论储量75 GW,其中资源丰富区的可装机容量约为17 GW。
广东是我国海上风能资源最为丰富的省份。根据国家能源局组织开展的《广东省海上风电场工程规划》的近海风电场选址原则,剔除与海洋功能区划、生态环境保护、军事、港航通行等相冲突的海域后,广东近海水深30 m以下可开发海上风电装机容量超过10 GW,具备规模开发的资源条件[3]。