中国电机工程学报2024，Vol.44Issue(4)：1247-1259,中插1,14.DOI:10.13334/j.0258-8013.pcsee.222672
考虑初始风速与机端故障稳态电压跌落程度的直驱风机故障响应特性分类及其判别方法研究
Study on Fault Response Characteristics Classification and Discriminant Method of PMSG Considering Initial Wind Speed and Drop Degree of Terminal Fault Steady-state Voltage
摘要
Abstract
Security analysis of power systems often requires simulation of various expected scenarios.With massive integration of wind power,it is important to put forward an equivalent modeling method suitable for the anticipated fault for wind farms.Meanwhile,grouping wind turbines by their dynamic response characteristics is the basis of equivalent modeling.The dynamic response characteristics of each wind turbine after a fault are not only affected by the control mode,but also by the operating wind speed and the severity of the fault.In general,the control of wind turbines can work rapidly and run to fault steady state during the fault.For the above reasons,this paper proposes a classification and discrimination method for the fault response characteristics of wind turbines considering the initial wind speed and terminal fault steady-state voltage drop degree.First,for the control strategy of reactive power priority control during fault process and active power ramp recovery during fault recovery,all possible characteristics of wind turbines and the critical condition of all clusters can be found.Then,based on the anticipated fault,a fault steady-state voltage calculation method for each wind turbine in a wind farm is proposed.Further,a clustering method adapted to anticipated fault is proposed.Finally,the simulation analysis of a detailed wind farm model proves the correctness of the proposed method.关键词
永磁直驱风机/有功响应/斜坡恢复/预想故障/分群方法Key words
direct-driven permanent magnet synchronous generator/active power response/ramp recovery/anticipated fault/clustering method分类
信息技术与安全科学引用本文复制引用
李东晟,沈沉,吴林林,程雪坤,杨艳晨..考虑初始风速与机端故障稳态电压跌落程度的直驱风机故障响应特性分类及其判别方法研究[J].中国电机工程学报,2024,44(4):1247-1259,中插1,14.基金项目
国家电网公司科技项目"接入弱电网的风电机组暂态电压优化控制技术研究"(4000-202214067A-1-1-ZN). Science and Technology Project of State Grid Corporation of China"Research on transient voltage optimization control technology of wind turbine connected to weak power grid"(4000-202214067A-1-1-ZN). （4000-202214067A-1-1-ZN）
