煤矿源网荷储一体化建设模式研究

Integrated construction mode of source network,load and storage for coal mine

煤矿源网荷储一体化系统的运行目标为绿电作为煤矿生产支持性电源,力求最大限度的减小煤矿生产对电网的调峰需求。文章首先总结归纳了不同工作制下煤矿负荷的运行特性,结合该特性分析了风光发电与之在电力、电量上的匹配关系,得出了瞬时发电电力盈余较大、整体用电电量缺额较大的矛盾情况。针对此矛盾情况,分析了储能充放电流程以及其削峰填谷、平衡消纳电量的支持性作用。提出了微电网“源荷互动”的控制策略。

The operational goal of the integrated system of power grid,load and storage for coal mine is to use green electricity as a supportive power source for coal mine production,striving to minimize the peak shaving demand of coal mine production on the power grid.Firstly,the operating characteristic of coal mine loads under different working systems is summarized,and the matching relationship between wind and solar power generation is analyzed in terms of electricity and quantity based on this characteristic.It is concluded that there is a contradiction between the large surplus of instantaneous power generation and the large shortage of overall electricity consumption.Then,in response to this contradictory situation,the energy storage charging and discharging process and its supportive role in peak shaving,valley filling,and balanced consumption of electricity are analyzed.Finally,a control strategy of source load interaction in microgrids is proposed.