Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于分布式新能源与配网网络重构的降损技术

来源:电工电气发布时间:2024-06-03 13:03 浏览次数:92

基于分布式新能源与配网网络重构的降损技术

袁之元, 魏林影
(镇江三新供电服务有限公司丹阳分公司,江苏 镇江 212300)
 
    摘 要:考虑分布式新能源出力随机性对调控策略执行效果的影响,研究了基于电压风险评估和主动重构的日前调度技术。基于光伏出力预测和负荷预测,以电压安全概率风险最小为目标,以开合联络开关为控制变量,应用二阶锥松弛过的 Distflow 潮流模型进行求解,获取电压安全概率风险最小的配网重构方案。通过对 IEEE 33 节点配网进行算例分析,仿真结果验证了所提基于电压风险评估与主动重构的日前降损策略的可行性。
    关键词: 日前调度;二阶锥松弛;Distflow 潮流模型;配网重构;降损
    中图分类号:TM732     文献标识码:B     文章编号:1007-3175(2024)05-0041-06
 
Loss Reduction Technology Based on Distributed New Energy and
Distribution Network Reconstruction
 
YUAN Zhi-yuan, WEI Lin-ying
(Zhenjiang Sanxin Power Supply Service Co., Ltd. Danyang Branch, Zhenjiang 212300, China)
 
    Abstract: Considering the influence of the randomness of distributed renewable energy output on the implementation effect of the control strategy, the day-ahead scheduling technology based on voltage risk assessment and active reconstruction was studied. Based on the photovoltaic output prediction and load prediction, this paper takes the minimum probability risk of voltage safety as the goal, and the opening and closing contact switches as control variable. A second-order cone relaxations Distflow flow model was applied to solve and obtain the distribution network reconstruction plan with the minimum voltage safety probability risk. Through the analysis of the IEEE 33 node distribution network, the simulation results verify the feasibility of the proposed day-ahead loss reduction strategy based on voltage risk assessment and active reconstruction.
    Key words: day-ahead scheduling; second-order cone relaxations; Distflow flow model; distribution network reconstruction; loss reduction
 
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