中国电机工程学报2017，Vol.37Issue(16)：4641-4649,9.DOI:10.13334/j.0258-8013.pcsee.160679
基于随机模型节点等效的有源配电网电压越限概率分析计算方法
A Probability Calculation Method of Voltage Beyond Limits Based on Node Equivalence of Stochastic Power Model in Active Distribution Network
摘要
Abstract
To solve the analysis and calculation problem of voltage beyond limits under the uncertainty influence of the distributed generation and load in active distribution network,a probability calculation method of voltage beyond limits,combined off-line calculation and on-line analysis,was proposed.The node equivalent method is used to weaken the effect of multi-node stochastic power model on single node voltage amplitude,and reduce the variable dimension of network operation state.Then the typical discrete states are selected and the probability of voltage beyond limits is calculated.And the off-line calculation is completed after the related data storage.In practice operation,the equivalent stochastic variables under existing condition are obtained with node equivalent method.And the adjacent states in off-line data base are extracted to carry out multi-dimension Lagrange interpolation,so the each node probability of voltage beyond limits can be obtained in the on-line analysis process.The validity and practicability of the proposed method are verified by the comparison with the traditional stochastic load flow method in the IEEE 33 node test system.关键词
有源配电网/电压越限概率/节点等效/离线计算/在线分析/分布式电源Key words
active distribution network/voltage beyond limits probability/node equivalence/off-line calculation/on-line analysis/distributed generation分类
信息技术与安全科学引用本文复制引用
高菲,宋晓辉,李建芳,张瑜,赵珊珊..基于随机模型节点等效的有源配电网电压越限概率分析计算方法[J].中国电机工程学报,2017,37(16):4641-4649,9.基金项目
国家自然科学基金资助项目(51377148) （51377148）
国家电网公司科技项目(PD71-15-043).Project Supported by Natural Natural Science Foundation of China(51377148) （PD71-15-043）
Science and Technology Project of SGCC (PD71-15-043). （PD71-15-043）
