基于Fisher最优分割法的配电网多时间尺度无功优化
Multi-time-scale Reactive Power Optimization of Distribution Network Based on Fisher Optimal Segmentation Method
艾聪林 1何东 1王振忠 1吕高宇 1邹玉新1
作者信息
- 1. 湖南工业大学电气与信息工程学院,湖南 株洲 412007
- 折叠
摘要
分布式电源在配电网中的渗透率不断提升,而源荷的预测精度与时间尺度成反比,源荷的波动已成为制约配电网安全经济运行的重要因素.鉴于此,提出日前与日内相结合的多时间尺度无功优化方法,利用Fisher最优分割法对离散无功补偿设备进行动作时段划分,在日内对日前连续无功补偿设备的无功出力进行实时校正以应对源荷的波动性.通过 IEEE 33 节点系统验证了所提优化策略的有效性.
Abstract
Owing to continuously increasing penetration rate of distributed sources in distribution network and the inverse proportional relationship between prediction accuracy of source-load and time scale,volatility of source-load has become an important factor constraining safe and economical operation of distribution network.In view of this,the present work proposed a multi-time-scale reactive power optimization method that combines day-ahead and intra-day considerations.The method works by utilizing Fisher's optimal segmentation to divide operation periods of discrete reactive power compensation devices,and by performing real-time adjustments to reactive power output of continuous compensation devices in intra-day periods to cope with the volatility of source-load.The effectiveness of the proposed optimization strategy was validated by conducting experiments on the IEEE 33 system.
关键词
配电网/无功优化/多时间尺度/时段划分Key words
distribution network/reactive power optimization/multi-time scale/period division引用本文复制引用
基金项目
湖南省自然科学基金(2021JJ40172)
出版年
2024
NETL
NSTL
万方数据