电工技术学报2016,Vol.31Issue(21):1-11,11.
微电网互联运行的分时优化与实时控制方法
Hour-Ahead Optimization and Real-Time Control Method for Micro-Grid Interconnection
摘要
Abstract
It is conducive for operation optimization and resource complementation in space and time to intercon-nect the neighboring autonomous micro-grids. An operation method combining hour-ahead optimization with real-time control is put forward in this paper, aimed at reducing generation cost and improving operation stability. From the as-pect of hour-ahead optimization, a dispatching method of global optimization is proposed, which takes resource com-plementarity in space and time into consioderation. It is based on ultra-short term forecasting results and aims at a mini-mum generation cost. From the aspect of real-time coordination control, in view of the power fluctuation problem caused by randomness of wind resource, solar resource and load, a method of constant power control for the tie-line based on dynamic droop control strategy is proposed. It makes the power fluctuations distributed reasonably and econom-ically. Finally in this paper, an example is executed in order to verify that the dispatching method of short-term optimi-zation can promote resource complementation and reduce operation cost. The result of the real-time simulation confirms the validity of the dynamic droop control strategy for constant power control of the tie-line.关键词
互联微电网/分时优化/实时控制/动态下垂Key words
Micro-gird interconnection/hour-ahead optimization/real-time control/dynamic droop control分类
信息技术与安全科学引用本文复制引用
刘念,李岩松,张建华,雷金勇..微电网互联运行的分时优化与实时控制方法[J].电工技术学报,2016,31(21):1-11,11.基金项目
国家高技术研究发展计划项目(863计划)(2014AA052001)资助。 (863计划)