电力建设2024，Vol.45Issue(11)：89-101,13.DOI:10.12204/j.issn.1000-7229.2024.11.008
兼顾经济效益与寿命损失的含储能配电网多时间尺度协调调度
Multi-Time Scale Optimal Dispatching Method of Active Distribution Network Considering the Influence of Cycle Life for Energy Storage System
摘要
Abstract
As a high-quality,fast-regulating resource,electric energy storage plays a critical role in key scenarios such as system peak shaving and frequency regulation.However,it still faces challenges such as high degradation rates,high costs for large-scale applications,and uncertain economic benefits.To address these issues,this study explores the economic-life characteristics of energy storage systems and proposes a multi-timescale optimal dispatch method for active distribution networks,considering the impact of energy storage system cycle life.First,the correlation between the cycle life of energy storage systems and the depth of charge/discharge is evaluated,and a refined operation model is developed to balance life loss and economic benefits under deep charge/discharge scenarios,aiming to optimize the flexible regulation potential of energy storage systems.Second,by integrating model predictive control,a multi-timescale optimal dispatch framework is proposed for active distribution networks.This framework considers operational benefits and life loss,ensuring efficient use of energy storage capacity in critical scenarios like peak shaving.This framework establishes an operational strategy considering the impact of deep charge/discharge of energy storage systems during the intraday stage and coordinates heterogeneous response characteristics across different timescales,and during real-time operations,feedback corrections are made based on ultra-short-term forecasting information.This enables real-time adjustments of rapidly responsive resources,such as energy storage systems,to track fluctuations in renewable energy generation effectively.A case study verified that the proposed method significantly enhances the efficiency of energy storage utilization in peak shaving and improves the economic efficiency and reliability of distribution systems with energy storage.关键词
主动配电网/储能系统/循环寿命/优化调度/模型预测控制Key words
active distribution network/energy storage system/cycle life/optimized scheduling/model predictive control分类
信息技术与安全科学引用本文复制引用
牛远方,冯天橼,王成福,沙志成,徐大鹏..兼顾经济效益与寿命损失的含储能配电网多时间尺度协调调度[J].电力建设,2024,45(11):89-101,13.基金项目
This work is supported by National Natural Science Foundation of China(No.U2166208,No.52377108).国家自然科学基金联合基金项目(U2166208) （No.U2166208,No.52377108）
国家自然科学基金(52377108) （52377108）
