电力建设2024，Vol.45Issue(8)：159-172,14.DOI:10.12204/j.issn.1000-7229.2024.08.015
考虑降压节能和光伏误差三维特性的主动配电网多时间尺度优化调度
Multi-timescale Scheduling Method for Active Distribution Network Considering Three-dimensional Characteristics of PV Prediction Error and Voltage Regulation
摘要
Abstract
The decentralized and random characteristics of high-proportion distributed photovoltaics aggravate the uncertainty of power flow distribution,which makes the safe and economic operation of the distribution system face severe challenges.In this paper,a multi-time scale optimization scheduling method for active distribution network considering the three-dimensional characteristics of conservation voltage reduction and distributed photovoltaic prediction error is proposed.Firstly,the sensitivity relationship between load power and feeder voltage is analyzed,and a comprehensive load modeling method based on step-down energy-saving regulation method is proposed.Then,from the perspective of time-space-power,a three-dimensional analysis model of distributed photovoltaic prediction error is established to provide more accurate error analysis results for scheduling.Finally,based on the conservation voltage reduction method and the three-dimensional analysis model of prediction error,a multi-timescale optimal scheduling model of active distribution network that can effectively coordinate the slow adjustment resources and the rapid response resources is constructed.Finally,taking the improved IEEE 33-node system as an example for analysis,the case study shows that the proposed error modeling method has a good following effect on photovoltaic power,and the optimized scheduling strategy based on this model can reduce the influence of error randomness on scheduling decision-making and improve the safety and economy of distribution system operation.关键词
主动配电网/优化调度/分布式光伏/预测误差建模/降压节能技术/多时间尺度Key words
active distribution network/optimized scheduling/distributed photovoltaic/prediction error modeling/conservation voltage reduction/multi-timescale schedule分类
信息技术与安全科学引用本文复制引用
张光儒,马振祺,陈杰,张家午,王康,冯天橼,王成福..考虑降压节能和光伏误差三维特性的主动配电网多时间尺度优化调度[J].电力建设,2024,45(8):159-172,14.基金项目
This work is supported by Joint Fund Project of the National Natural Science Foundation of China(No.U2166208),State Grid Corporation of China Research Program(No.5108-202218280A-2-376-XG)and National Natural Science Foundation of China(No.52377108). 国家自然科学基金联合基金项目(U2166208) （No.U2166208）
国家电网公司总部科技项目(5108-202218280A-2-376-XG) （5108-202218280A-2-376-XG）
国家自然科学基金面上项目(52377108) （52377108）
