考虑需求侧响应的微网混合储能优化配置

在微网中配置混合储能并引入需求侧响应机制,有利于提高电网运行时的灵活性,降低分布式电源对电网带来的冲击。针对含风力发电机、光伏、储能的并网型微电网,引入需求侧响应机制,建立了以混合储能全寿命周期净现值、微网购电成本和需求侧响应成本为目标函数的微网混合储能优化配置模型,对混合储能容量进行优化配置,采用改进差分算法求解该模型。结合某地实际微网进行验证,结果表明,混合储能可有效改善分布式电源对微电网的影响,需求侧响应可显著降低混合储能成本,提高微网运行的经济效益,为类似微网混合储能优化配置提供了参考。

Hybrid Energy Storage Optimization Allocation in Microgrid Based on Demand Response

Hybrid energy storage and the demand side response mechanism in microgrid is advantageous to improve the flexibility of grid operation and reduce the impact of distributed generation. This paper introduces demand side response to microgrid, which includes wind turbines, photovoltaic and energy storage. It builds hybrid storage optimal allocation model, whose objective is storage life cycle net present value, cost of energy purchase from distributed grid, and cost of subsidy to demand response. The model is solved by the improved differential algorithm. An actual place of microgrid is used as an example. Results show that the hybrid energy storage can effectively improve the distributed power supply of micro grid; demand side response can effectively reduce the hybrid energy storage capacity and improve the microgrid economic net benefits. Thus, it provides a reference for the similar hybrid energy storage optimization allocation in microgrid.