考虑运行调度策略的工商业用户侧光储联合系统协同规划

Coordinated planning of photovoltaic-BESS hybrid system for industrial and commercial users considering scheduling strategy

现有分布式用户侧光伏储能优化规划方法多以光伏发电功率的聚类中心为出发点,忽略了某些光伏出力较大的时段,此类方法在对光伏安装面积较小的商业用户进行规划时成效较为显著。但在对光伏安装面积较大的工业园区进行规划时,其光伏容量规划结果往往偏大,在实际运行过程中可能导致源荷功率不平衡结果,有影响系统安全稳定运行的隐患。对此,本文在充分考虑较长时段内光伏发电随机性和波动性的基础上,立足于负荷用户年度源荷电力数据,同时考虑多元用户特性和电力市场交易政策等方面因素,以光伏储能系统年综合运行成本最低为目标,建立了用户侧分布式光伏储能优化规划模型。算例分析表明,本模型能够在各类典型工商业用户的光伏储能优化规划中取得满意效果。

The existing distributed user side photovoltaic-battery energy storage system(BESS)optimization planning methods only consider the cluster center of photovoltaic power generation and ignore some scenarios when photovoltaic generation is high.These methods are effective for users with small photovoltaic installation area such as office buildings,but for industrial parks with large photovoltaic installation area,the resulted photovoltaic capacity are often too large,thus leading to power imbalance in practice.To address this,based on the one year length of photovoltaic power generation data,this paper comprehensively considers the randomness and diversity of photovoltaic power generation,thereby taking into account the characteristics of different users and power market trading policies.By doing so,a new user side distributed photovoltaic-BESS capacity planning strategy is established.With the proposed model,the annually operation cost of photovoltaic-BESS hybrid system can be minimized.Simulation results show that the proposed model is effective for both industrial and commercial users.