计及发电成本和收益的微电网规模确定方法

摘要

According to the policy implementation of energy-saving and emission-reduction,and the situation of renewable energy merged into the power grids,the number of micro-grids is getting more and more.But the report about the scale of micro-grid can not been seen.And so the power grid is getting more and more difficult to be analyzed,dispatched and managed,and the development and construct of the smart grid is influenced.According to the problem,based on the traditional generation cost and benefits,the cost model of micro-grid is built and the number that the power grid is divided into how many micro-grids is clear.And it is contributing to the management of power gird and the micro-grids,and then can supply a basis for simplifying power grid dispatch.Taking the IEEE118 buses system as an example,the experimental results verify the effectiveness of the proposed method.%随着节能减排政策的不断实施,可再生能源发电不断涌入电网,使各种形式的微电网越来越多,从而增加了对含有微电网的大电网分析、调度和管理的困难.为了提高电网调度和管理的效率,在传统发电成本和收益的基础上,建立了微电网的成本模型.从电网的整体范围内确定微电网的规模,并以此可知将电网划分为微电网的数量,有助于实现电网整体的管理以及微电网内部的管理,进而可以为简化电网调度提供基础.通过IEEE 118母线系统的仿真测试,表明了所提方法的有效性.