基于能量管理的产消者与配电系统运营商互惠互动方法

Abstract The advent of dynamic tariffs motivates prosumers to optimally schedule the operation of their energy storage systems, electric vehicles and flexible devices to minimize their electricity costs. On one hand, this optimal schedule may affect the distribution network (DN) by increasing the energy losses and/or violating its operational limits. On the other hand, the management of prosumers’ flexibility to support the DN operation could lower the prosumers’ electricity cost savings, since the scheduling now is determined based on a different goal. In this paper, a methodology is proposed to offer a mutually beneficial solution for both parties by ensuring: (a) the minimum electricity cost of all prosumers, the (b) minimum operational cost of the distribution system operator (DSO), while (c) preserving the DN operational constraints. A compensation scheme is also presented to incentivize the prosumers’ compliance to the energy management system’s (EMS) schedule, and counterbalance their potential loss in cost savings. The effectiveness of this EMS is verified on a low voltage DN and is compared with two other approaches, thus highlighting its efficiency in minimizing prosumers’ cost, while simultaneously reducing the DN losses and improving its voltage profile. The results indicate that the DSO could be benefited by the power loss reduction, voltage profile improvement and DN operation preservation resulted by the prosumers support to the DN operation, and the prosumers could still enjoy the lowest electricity cost, thus providing a Win-Win situation for all.