中国电机工程学报2024，Vol.44Issue(10)：3804-3814,中插5,12.DOI:10.13334/j.0258-8013.pcsee.231476
电力系统电磁暂态仿真中异步电动机的机-网解耦模型
Induction Motor-network Decoupling Model for Power System Electromagnetic Transients Simulation with Induction Motor as Load
摘要
Abstract
In the domain of electromagnetic transients(EMT)simulation for power systems,induction motors are commonly used to represent dynamic load models.However,due to the vast number of induction motors and the limitations of motor-network interfacing methods,conventional induction motor models face challenges in balancing efficiency and numerical stability simultaneously.To address this issue,this paper presents an Induction Motor Load Decoupling(IMLD)model for power systems EMT simulation.This model integrates the equivalent circuit of induction motors with LC transmission line delay,forming a naturally delayed motor-network decoupling interface.As a result,the iterative solutions of the induction motor are decoupled from the external network,eliminating the need for simultaneously solutions with the external network.By solving the equivalent circuit equation and configuring the model parameters based on the active and reactive power of the load bus,the simulation results are matched with the power of the load buses given by the power flow solution.Test case results show that the proposed IMLD model effectively reduces the number of network equation iterations while maintaining high accuracy,simulation efficiency,and good numerical stability.关键词
电力系统/电磁暂态仿真/异步电动机/机-网解耦模型/动态负荷模型Key words
power system/electromagnetic transients simulation/induction motor/motor-network interface decoupling model/dynamic load model分类
动力与电气工程引用本文复制引用
庞博涵,刘文焯,汤涌,连攀杰,许克,郁舒雁,王璐,禹海峰..电力系统电磁暂态仿真中异步电动机的机-网解耦模型[J].中国电机工程学报,2024,44(10):3804-3814,中插5,12.基金项目
湖南省科技重大专项项目(2020GK1011) （2020GK1011）
湖南省科技创新平台与人才计划(2019TP1053).Key Science and Technology Special Project of Hunan Province(2020GK1011) （2019TP1053）
Science-Technology Innovation Platform and Talents Program of Hunan Province,China(2019TP1053). （2019TP1053）
