电力市场环境下分布式电源与储能协同规划

Collaborative Planning of Distributed Generation and Energy Storage Systems under Power Market Environment

主动配电网参与电力市场将对其运行策略产生影响,进而影响配电网内分布式资源的规划。针对电力市场环境下的分布式资源规划问题,该文建立了配置主动配电网内部分布式资源的双层规划模型,其中上层模型以配电网年综合收益最大为目标,优化规划分布式资源的容量;下层模型以社会效益最大为目标,完成日前电力市场的出清。接着,通过强对偶理论和KKT条件将该双层规划模型转化为单层的均衡约束数学规划问题,并将目标函数中的双线性项线性化,进而转化为混合整数二阶锥规划模型以便于求解。最后,通过算例分析验证了该文所提模型的正确性,结果表明配电网运营商参与电力市场可提升主动配电网对分布式电源的承载力。

The power market has influence on the operation of active distribution networks,further affecting the planning of distributed resources.To address this issue,first,this paper proposes a bilevel programming model to allocate distributed resources in the active distribution network where the upper level aims at maximizing the overall income of the whole year and serves to optimize planning of the capacity of the distributed resources,while the lower model aims at maximizing social benefit and completes the clearance of the day-ahead electricity market.Second,by applying strong duality theory and KKT conditions,the bilevel programming model is transformed into a single level mathematical programming with equilibrium constraints.The model is further turned into a mixed integer second order cone programming problem after the bilinear terms in the objective function is linearized.Finally,the validity of proposed model is verified by a case study.The test results show that the participation of power market can boost the hosting capacity of distributed generation.