考虑间歇性电源的微电网经济调度模型与算法  

Model and Strategy of Microgrid Dispatch Considering Intermittent Energy

作　　者：赵耀[1] 董开松[1] 沈渭程[1] 马喜平[1] 李臻[1] 杨俊[1] 郑翔宇[1] 赵炜[1] 

机构地区：[1]国网甘肃省电力公司电力科学研究院,甘肃兰州730050

出　　处：《水电能源科学》2015年第8期199-202,143,共5页Water Resources and Power

基　　金：国网公司本部项目(52272214002Z);国网甘肃省电力公司本部项目(5227221350BR);国网公司科技项目(52272214002Y)

摘　　要：微网系统的有功调度是具有重大经济效益的复杂问题,关键问题是要正确处理好微网有功调度过程中的不确定性因素。基于微网经济调度模型,采用场景法描述间歇性电源的出力,并简化了调度模型,采用原对偶内点算法对模型进行求解。实例应用结果表明,当风电波动较大时,传统调度方式下微网系统在某些时段可能出现功率缺额,鲁棒调度方式则能通过调整可控机组的出力使微网系统保持功率平衡;传统调度方式更具有经济性,鲁棒调度方式则是以损失经济性为代价换取微网系统对风电不确定性的适应能力。The optimal active power dispatch of microgrid system is a complex problem with significant economic benefits.How to deal with the uncertainty factors of microgrid scheduling is the key problem.Based on microgrid economic scheduling model,this paper simplifies the model by the scene description intermittent power output.Finally,the primal dual interior point algorithm is used to solve the model.The example results show that for the traditional scheduling mode,microgrid system may appear power shortage in certain periods when the fluctuation of wind power is larger;but the robust dispatch method can adjust the output power of controlled unit so that microgrid system power restores balance quickly;the traditional scheduling approach is more economic;at the condition of robust dispatch mode,microgrid system exchanges loss of economic index for wind power adaptability of uncertainty.

关 键 词：微网系统 经济调度 间歇性电源 功率缺额 

分 类 号：TM73[电气工程—电力系统及自动化]