电气传动2026，Vol.56Issue(3)：43-51,9.DOI:10.19457/j.1001-2095.dqcd26094
含T接IIDG的新型配电系统故障计算方法
Fault Calculation Method of New Distribution Network with T-connected IIDG
摘要
Abstract
The traditional fault calculation method in the case of distribution network with multi-point T-connected inverter interfaced distributed generator(IIDG)has the problems of complicated calculation process and large calculation amount.Therefore,a fault calculation method for new distribution systems with T-connected IIDG was proposed.Firstly,according to the type of power supply,the fault network of distribution network was divided into two types:the subnets with traditional units and the branch subnets with IIDG.Secondly,in order to avoid the huge amount of calculation caused by the nonlinear components in the system,the virtual voltage source method was used to perform regional iterative calculation on the branch subnet to determine the output of IIDG.Finally,the IIDG in the distribution network was replaced by the equivalent constant current source,and the system fault characteristic values satisfying the accuracy requirement was obtained by linear variation method.The simulation results show that the proposed method is correct and effective,and it simplifies the solution process of fault characteristics quantity in the new distribution system with IIDG under the premise of ensuring the calculation accuracy,and greatly shortens the solution time.关键词
新型配电系统/逆变型分布式电源/故障特征/虚拟电压源/等值恒流源/区域迭代Key words
new distribution system/inverter interfaced distributed generator(IIDG)/fault characteristics/virtual voltage source/equivalent constant current source/region iteration分类
信息技术与安全科学引用本文复制引用
张元波,吉伟,张赟,戴志辉,何静远..含T接IIDG的新型配电系统故障计算方法[J].电气传动,2026,56(3):43-51,9.基金项目
国家电网有限公司科技资助项目(含高渗透率分布式新能源和储能装置的有源配电网控制策略及保护装置研究) （含高渗透率分布式新能源和储能装置的有源配电网控制策略及保护装置研究）
