基于综合需求响应的海岛式多能微网优化调度

Optimal Dispatch of Multi Energy Island-microgrid Based on Integrated Demand Response

为保障海岛式多能微网的高效运行,提出一种基于综合需求响应的海岛式多能微网优化调度模型。该模型利用多能网络的需求侧替代作用,配合激励型和价格型用户建立综合需求响应模型,结合电、氢、热多能网络的全可再生能源利用模式,建立了对外供能的开放式氢储能与热储能系统、光热发电系统、电网主动管理措施和可逆高温固态氧化物燃料电池等可控单元的数学模型,并将模型线性化处理为二阶锥优化模型,提高求解效率。通过算例验证了该模型的有效性,得出氢热混合储能不但可最大化发挥源侧的风、光、热互补特性,还可改善用户侧的综合需求响应效果,提高综合能源利用效率,使综合运行成本大幅降低。

In order to ensure the efficient operation of multi energy island-microgrid, an optimal scheduling model based on integrated demand response(IDR) is proposed. The model uses the demand side substitution function of multi-functional network to establish a comprehensive demand response model with incentive and price users. Combined with the full renewable energy utilization mode of electricity, hydrogen and heat multi energy network, the mathematical models of open hydrogen energy storage and heat energy storage system, photothermal power generation system, power grid active management measures and reversible high temperature solid oxide fuel cell for external energy supply are established. The model is linearized into a second-order cone optimization model to improve the efficiency of solution. The effectiveness of the model is verified by an example. It is concluded that hydrogen heat hybrid energy storage can not only maximize the complementary characteristics of wind, light and heat at the source side, but also improve the comprehensive demand response effect at the user side, improve the comprehensive energy utilization efficiency, and greatly reduce the comprehensive operation cost.