规模化新能源接入下受端电网调峰方式综合评估研究  

Comprehensive evaluation of receiving end grid peak shaving modes under background of large-scale new energy

作　　者：孙蓉[1,2] 张诚之 陈兵 廖星星 孙国强 臧海祥[1] 卫志农[1] SUN Rong;ZHANG Chengzhi;CHEN Bing;LIAO Xingxing;SUN Guoqiang;ZANG Haixiang;WEI Zhinong(College of Energy and Electrical Engineering,Hohai University,Nanjing 211100,China;Electric Power Research Institute of State Grid Jiangsu Electric Power Company,Nanjing 211103,China)

机构地区：[1]河海大学能源与电气学院,江苏南京211100 [2]国网江苏省电力公司电力科学研究院,江苏南京211103

出　　处：《电力自动化设备》2021年第6期149-155,163,共8页Electric Power Automation Equipment

基　　金：国家电网有限公司总部科技项目(新能源主动支撑电网工程实用化控制技术及并网适应性研究和应用)(52010118000N)。

摘　　要：规模化新能源接入下受端电网调峰问题逐渐暴露,有必要对其调峰手段和效果进行综合评估研究。为此提出了规模化新能源接入下受端电网多种调峰方式组合的综合评估方法。首先根据风电、光伏场站实际数据,采用截断通用分布模型拟合新能源出力;接着建立了受端电网调峰方式以及调峰能力评估指标体系,提出了多种调峰组合方式参与调峰的能力评估模型,运用随机规划和启发式算法对模型进行求解;最后采用客观熵权法对各种调峰组合方式进行综合评估,得到不同新能源渗透率场景下的最优调峰组合策略建议。以IEEE 57节点系统为例,验证了所提方法的有效性和实用性。The problem of peak shaving of the receiving end grid is gradually exposed under the connection of large-scale new energy,and it is necessary to comprehensively evaluate and study its peak shaving means and effects.So a comprehensive evaluation method for the combination of multiple peak shaving modes of the receiving end grid under the connection of large-scale new energy is proposed.Firstly,according to the actual data of wind power and photovoltaic farms,a truncated versatile distribution model is used to fit the output of new energy.Secondly,the peak shaving mode and peak shaving capacity evaluation index system of the receiving end grid are established,and the ability evaluation model for multiple combination modes participating in peak shaving is proposed and solved by stochastic programming and heuristic algorithms.Finally,the objective entropy weight method is used to comprehensively evaluate various combination modes of peak shaving,and the recommendations of optimal combination mode under different new energy penetra⁃tion rate scenarios are obtained.The IEEE 57-bus system is taken as an example to verify the effectiveness and practicability of the proposed method.

关 键 词：受端电网 规模化新能源 截断通用分布模型 调峰组合方式 综合评估 

分 类 号：TM73[电气工程—电力系统及自动化]