分布式发电对可用输电能力的影响  

Effect of Distributed Generation on Available Transfer Capability

作　　者：王俊[1,2] 蔡兴国[1] 季峰[1] 

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,哈尔滨150001 [2]沈阳农业大学信息与电气工程学院,沈阳110866

出　　处：《高电压技术》2011年第12期3151-3156,共6页High Voltage Engineering

基　　金：高等学校博士学科点专项科研基金(20050213006);黑龙江省科技攻关项目(GD07A304)~~

摘　　要：可用输电能力(available transfer capability,ATC)的大小不仅能够衡量电力系统安全和可靠性,同时在一定程度上能够反映电力市场交易双方获得利润的多少。随着分布式发电(distributed generation,DG)的广泛开展,其对ATC的影响不容忽视。为此,首先基于ATC的定义,阐述了DG对ATC的影响机理;提出了考量DG对ATC影响的分析方法,利用交流潮流法建立了DG输出功率对线路潮流和节点电压影响的数学模型。采用MAT-LAB6.5编写相关的计算程序,通过6节点和30节点测试系统的算例分析,证明了分析方法和数学模型能够有效考量DG对ATC产生的影响。且方法可应用于含有DG设备的配电网规划及电力市场的交易决策中。The available transfer capability（ATC） can not only measure safety and reliability of power system,but also reflect the number of profit of both trade in electric power market to certain extent.With development of distributed generation（DG）,its effect on the ATC can not be ignored.On the basis of definition of ATC,we analyzed the influence mechanism of DG on ATC,proposed an analysis method for measuring the effect of DG on ATC,and established a mathematical model for representing the effect of power output of DG on line power flow and bus voltage by using AC power flow,moreover,we developed an algorithm by MATLAB 6.5.By the analysis in the 6-node and 30-node test system,we verified that the analysis method and mathematical model could measure the effect of DG on ATC effectively.The proposed method can be used in the distribution network which contains DG and operation strategy of electric power market in the future.

关 键 词：可用输电能力 分布式发电 影响因子 交流潮流 节点电压 评估 

分 类 号：TM73[电气工程—电力系统及自动化]