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。
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.
作者
艾聪林
何东
王振忠
吕高宇
邹玉新
AI Conglin;HE Dong;WANG Zhenzhong;LV Gaoyu;ZOU Yuxin(School of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412007,China)
出处
《电工技术》
2024年第4期150-154,共5页
Electric Engineering
基金
湖南省自然科学基金资助项目(编号2021JJ40172)。
关键词
配电网
无功优化
多时间尺度
时段划分
distribution network
reactive power optimization
multi-time scale
period division
