中文摘要：

针对分布式电源（distributed energy resource,DER）在配电网的并网运行,文章研究了利用峰谷分时电价改善其运行特性的优化运营策略。首先基于负荷转移率研究了用户负荷需求对峰谷分时电价的响应模型。接着通过研究负荷峰谷时段划分方法,建立反映供电侧消纳分布式电源不确定并网功率的运营成本效益模型,结合模糊机会约束理论,提出了考虑分布式电源并网不确定性的分时电价优化策略。在此基础上,进一步基于粒子群优化算法研究了分时电价优化模型的求解方法。最后利用仿真论证了所提电价运营优化模型的可行性,仿真结果表明需求侧的分时电价运营不仅能够提高配电网的分布式电源消纳能力,而且有益于提高配电网的运营综合效益。

英文摘要：

Aim to the integration of distributed energy resource（ DER） to distribution network,this paper studies the optimal operation strategy of time-of-use electricity-price to improve the operation characteristics of distribution network connected with DERs. Firstly,we study the user load demand response model to time-of-use electricity-price based on load transfer rate. Then,through studying the division method of load peak valley time,we establish the operating cost benefit model for distribution network consuming the uncertain output power by DERs. Combining with the fuzzy chance constrained theory,we propose the optimal strategy of time-of-use electricity-price with considering the uncertainty of gridconnected DERs. On this basis,we further study the solving method for the time-of-use electricity-price optimal model based on particle swarm optimization algorithm. Finally,we verify the feasibility of the proposed operation optimization model for electricity price by simulation. The simulation results show that the demand-side time-of-use electricity-price operation can not only improve the DER consumption ability of distribution network,but also is beneficial to improve the comprehensive operation benefits of distribution network operation.