中国电机工程学报2025，Vol.45Issue(13)：5034-5043,中插8,11.DOI:10.13334/j.0258-8013.pcsee.232824
适用于暂态仿真的计及小水电机群的广义负荷一体化等值建模方法
A Generalized Load Integrated Equivalent Modeling Method Considering Small Hydroelectric Generation Clusters for Transient Simulation
摘要
Abstract
Small hydropower units provide valuable contributions to both active and reactive power supply.When analyzing the impact of small hydroelectric generation clusters(SHGCs)integrated into the power grid for transient stability,the dynamic characteristics of the load region with SHGCs can not be described accurately by the comprehensive load model.To solve this problem,the operating mechanism and interacting mechanism of SHGCs on load side are studied,and a generalized load integrated equivalent modeling method considering SHGCs for transient simulation is proposed.The equivalent model of SHGCs is added on the basis of the comprehensive load model considering the distribution network.The technologies such as aggregation of SHGCs'parameters,identification of the key parameter,and optimization of the key parameter are used.Using an approach of weighted aggregation,the equivalent model is represented with the 5th order model of the synchronous generator firstly.Then,the key parameter,i.e.X′d with the strongest influence on the transient characteristics of power system is found by trajectory sensitivity analysis.Based on deep learning and multi-objective particle swarm optimization algorithm,the optimal parameter of X′d is obtained.The proposed method is applied to an area of the East China Power Grid and a generalized load integrated equivalent model considering SHGCs is established.The simulation results prove the accuracy and practicability of the modeling method.It can be used in the load modeling of the distribution network side considering SHGCs,which provides a modeling method for the transient simulation of the power system accurately.关键词
小水电机群/广义综合负荷模型/轨迹灵敏度/关键参数/多目标粒子群优化Key words
small hydroelectric generation clusters/generalized comprehensive load model/trajectory sensitivity/key parameter/multi-objective particle swarm optimization algorithm分类
信息技术与安全科学引用本文复制引用
张华云,王琦,王泽忠,刘丽平,赵兵,李建华,郝杰..适用于暂态仿真的计及小水电机群的广义负荷一体化等值建模方法[J].中国电机工程学报,2025,45(13):5034-5043,中插8,11.基金项目
国家电网有限公司科技项目(5100-202355009A-1-1-ZN). Science and Technology Project of State Grid Corporation of China(5100-202355009A-1-1-ZN). （5100-202355009A-1-1-ZN）
