面向短时过载及长期轻载的配变侧储能配置与调度双层优化  

Dual-Layer Optimization of Distribution Transformer Side Energy Storage Configuration and Dispatching for Short-Term Overload and Long-Term Light Load

作　　者：张旭 王淳[1] 胡奕涛[1] 陈锐凯 刘昆 郭志东 钟俊勋 ZHANG Xu;WANG Chun;HU Yitao;CHEN Ruikai;LIU Kun;GUO Zhidong;ZHONG Junxun(School of Information Engineering,Nanchang University,Nanchang 330031,China)

机构地区：[1]南昌大学信息工程学院,江西南昌330031

出　　处：《中国电力》2025年第1期174-184,共11页Electric Power

基　　金：国家自然科学基金资助项目(51967013)。

摘　　要：针对农村配电变压器短时过载、长期轻载运行的问题,提出了一种基于经济效益评价的配变侧储能配置和调度双层优化方法。上层模型以系统经济效益最优为目标,决策储能系统的额定功率和额定容量,采用莱维飞行粒子群算法求解;下层模型嵌入储能寿命消耗的简化计算模型,以配变低压侧有功波动最小,储能寿命削减最小以及调度经济效益最优为目标,决策储能系统调度策略,采用商业求解器Gurobi求解。在构建配变侧储能系统经济效益评价模型时,计及电池寿命消耗以及配变动态负载率对经济效益的影响,搭建了基于等效全循环次数折算的磷酸铁锂储能系统投资成本模型以及考虑动态负载率对故障发生概率影响的配变故障风险收益模型。算例结果表明,该方法在确保配电网安全运行下能够提高配变侧接入储能系统的经济性。Aiming at the problem of short-term overload and long-term light-load operation of rural distribution transformers,a bi-layer optimization method for optimizing energy storage configuration and scheduling on distribution transformer side based on economic benefit evaluation is proposed in this paper.The upper model aims at the optimal economic benefit of the system,and decides the rated power and capacity of the energy storage system by Levy flying particle swarm optimization.The lower layer model,embedded in a simple calculation model of energy storage life consumption,aims at minimizing active power fluctuation on the low voltage side of distribution transformer,minimizing energy storage life consumption and optimizing dispatching economic benefits,and decides the scheduling strategy of energy storage system by commercial solver Gurobi.When constructing the economic benefit evaluation model of energy storage system on the side of distribution transformer,taking into account the influence of battery life consumption and dynamic load rate of distribution transformer on economic benefit,the investment cost model of lithium iron phosphate energy storage system based on equivalent total cycle number and the fault risk-return model of distribution transformer considering the effect of dynamic load rate on fault probability are established.The results of numerical examples show that the proposed method can improve the economy of the distribution transformer side connected to the energy storage system while ensuring the safe and stable operation of the distribution network.

关 键 词：储能 农村配电变压器 经济效益评价 寿命消耗模型 双层优化 

分 类 号：TM421[电气工程—电器]