章立宗,张锋明,蒋正威,沈祥,余杰,金学奇,程天石,蒋玮
ZHANG Lizong,ZHANG Fengming,JIANG Zhengwei,SHEN Xiang,YU Jie,JIN Xueqi,CHENG Tianshi,JIANG Wei

• 1:国网浙江省电力有限公司绍兴供电公司
• 2:东南大学

摘要(Abstract)：

分布式电源和用电负荷的随机波动造成电网电压变化,传统潮流计算方法难以对分布式电源和负荷波动造成的电压风险进行评估。同时,传统串行计算难以满足大规模配电网快速电压风险评估的需求。针对上述问题,首先分析了光伏出力和负荷波动的概率特征,建立了相应的概率模型。进而对牛顿-拉夫逊算法进行扩展,提出了利用蒙特卡洛模拟评估电压风险的指标。为了满足大规模配电网电压风险计算速度的要求,搭建了基于Apache Spark的并行计算平台,提出了基于Spark RDD的并行蒙特卡洛模拟算法。在Spark测试平台上对算例进行了计算分析。结果证明,该算法可以真实反映配电网电压波动情况,并行计算的性能优越。
The stochastic fluctuations of distributed generation(DG) and loads may cause large voltage variation in microgrid, which can hardly be evaluated by traditional power flow computing methods. Besides, the traditional serial computing can not be used for fast voltage risk evaluation of large scale distribution networks.Therefore, probability characteristics of photovoltaic output and load fluctuation are analyzed to build a probability model; Newton-Raphson method is extended to propose indicators for voltage risk simulation and evaluation based on Monte Carlo method. For fast voltage risk computing of large distribution networks, a parallel computing platform based on Apache Spark is built, and a parallel Monte Carlo method based on Spark RDD is proposed. A computing example is tested on the Spark, and the result shows that the method can reflect distribution network fluctuation and is superior in performance.

关键词(KeyWords)： 主动配电网;蒙特卡洛模拟;电压风险评估;分布式并行计算
active distribution network;Monte-Carlo method;voltage risk evaluation;distributed parallel computing

Abstract:

Keywords:

基金项目(Foundation): 国网浙江省电力有限公司科技项目(5211SX16000A)

作者(Author): 章立宗,张锋明,蒋正威,沈祥,余杰,金学奇,程天石,蒋玮
ZHANG Lizong,ZHANG Fengming,JIANG Zhengwei,SHEN Xiang,YU Jie,JIN Xueqi,CHENG Tianshi,JIANG Wei

DOI: 10.19585/j.zjdl.201808002

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