摘要
Abstract
In order to improve the capacity of large-scale clean energy bases to absorb new energy and realize the economical and efficient grid connection of new energy,based on the output characteristics of wind power,photovoltaic,thermal power and battery energy storage,a multi-energy complementary capacity optimization model of wind-photovoltaic-thermal-battery system is established.The results of case analysis show that under the optimal configuration of wind power 14 702 MW,photovoltaic 19 886 MW and energy storage 1 805 MW,the absorption ratio of clean energy is 92.5%and the source-load deviation is 5.15%.When the energy storage capacity is increased from 1 805 MW to 5 000 MW and 10 000 MW,respectively,the source-load deviation will decreased from 6.7%to 5.8%and 5.0%on the typical day of the spring equinox,respectively.The sensitivity analysis shows that,(a)the carbon emissions increase with the increase of energy storage capacity,and decrease with the increase of wind power capacity and photovoltaic capacity;(b)the source-load deviation decreases with the increase of energy storage capacity,and increases with the increase of wind power capacity and photovoltaic capacity;and(c)the cost increases with the increase of energy storage capacity,wind power capacity and photovoltaic capacity.When the capacity of wind power,photovoltaic and energy storage increases by 33%respectively,its impact on the cost from larger to smaller is photovoltaic,energy storage and wind power,and the impacts on source-load deviation and carbon emission are same with a order from larger to smaller of photovoltaic,wind power and energy storage.关键词
多能互补/容量配置/储能容量/源荷偏差/碳排放/清洁能源消纳Key words
multi-energy complementation/capacity allocation/energy storage capacity/source-load deviation/carbon emissions/clean energy consumption分类
信息技术与安全科学
