双馈风力发电机组更换发电机对电网适应性能力的影响  

Impact of Replacing Generator on Power Grid Adaptability of Doubly-Fed Induction Generator(DFIG)

作　　者：陈文超 孙泽禹 汪正军 杜雯 刘伟超 CHEN Wenchao;SUN Zeyu;WANG Zhengjun;DU Wen;LIU Weichao(CHN Energy United Power Technology Co.,Ltd.Beijing Technology Development Branch,Beijing 100039)

机构地区：[1]国家能源集团联合动力技术有限公司北京技术开发分公司,北京100039

出　　处：《能源科技》2024年第4期65-69,共5页Energy Science and Technology

摘　　要：为了研究相同容量不同型号的发电机对双馈风力发电机组电网适应性能力的影响,以实际运行的3 MW某型号风力发电机组为基础,通过对电网适应性前后的稳态和暂态运行过程进行理论分析,论证了更换发电机的可行性,并对发电机更换导致的参数变化对机组电网适应性能力的影响展开了定量研究。建立机组Matlab/Simulink数学模型后,将2种型号的发电机等效电路参数送入模型进行仿真,取得反映机组运行状态的主要技术指标。通过对比分析,明确了发电机更换对机组电网适应性能力影响的定性结论,为工程实际提供了理论指导,也为目前风力发电机组电网适应性能力检测方法的改进工作提供了思路。In order to study the impact of generators of the same capacity but different models on the power grid adaptability of DFIG,this paper demonstrated the feasibility of replacing the generator through theoreti⁃cal analysis of steady-state and transient operation processes before and after grid adaptability based on a 3MW wind turbine of a certain model in actual operation,and made a quantitative study on the impact of parameter changes caused by generator replacement on the power grid adaptability of the wind turbine.After establishing the mathematical model of the wind turbine in Matlab/Simulink,the equivalent circuit parameters of two types of generators were input into the model for simulation,and the main technical indicators reflect⁃ing the operation state of the wind turbine were obtained.Through comparative analysis,a qualitative conclu⁃sion of the impact of replacing generator on the power grid adaptability of wind turbine was clarified,provid⁃ing theoretical guidance for engineering practice and ideas for improving the current test method of wind tur⁃bine power grid adaptability.

关 键 词：风电机组 电网适应性 数学模型 仿真验证 

分 类 号：TM315[电气工程—电机]