控制绕组磁链控制的无刷双馈发电机空载并网  

No-load Cutting-in for Brushless Doubly-fed Generator Based on the Control of Winding Flux Linkage Control

作　　者：王景轩 王淑红[1] 王一帆 王建华 吴攀 张爱玲[1] WANG Jingxuan;WANG Shuhong;WANG Yifan;WANG Jianhua;WU Pan;ZHANG Ailing(College of Electrical and Power Engineering,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China;China Energy Engineering Group Shanxi Electric Power Engineering Co.,Ltd.,Taiyuan 030024,Shanxi,China;State Grid Shanxi Electric Power Research Institute,Taiyuan 030001,Shanxi,China)

机构地区：[1]太原理工大学电气与动力工程学院,山西太原030024 [2]中国能源建设集团山西省电力勘测设计院有限公司,山西太原030024 [3]国网山西省电力科学研究院,山西太原030001

出　　处：《电气传动》2020年第12期41-47,共7页Electric Drive

基　　金：国家自然科学基金项目资助(51477110)。

摘　　要：和双馈感应发电机相比,无刷双馈感应发电机具有更高的可靠性和更低的维修成本,其在变速恒频风力发电系统中的商业应用已指日可待。提出一种在控制绕组静止坐标系实现的无刷双馈感应发电机的空载并网方法。该方法通过对控制绕组磁链矢量的相位增量与幅值增量的控制,实现功率绕组电压和频率的动态调节以满足并网的条件。在解析分析的基础上,构建了空载并网时控制系统的结构框图。实验结果表明,该方法可以满足无刷双馈电机在风力发电系统中实际应用的需求。Compared with doubly-fed induction generator(DFIG),brushless doubly-fed induction generator(BDFIG)has higher reliability and lower maintenance costs,which is nearly on the market in variable-speed constant-frequency wind power generation systems.A no-load cutting-in method for BDFIG based on the control winding static reference frame was proposed.The dynamic adjustment of the power winding voltage and frequency was realized by controlling the phase increment and the amplitude increment of the winding flux linkage vector control to meet the conditions of the grid connection.Based on the analytical analysis,a block diagram of the control system of the no-load cutting-in was constructed.The experimental results show that the method can meet the needs of the practical application of brushless doubly-fed machines(BDFM)in wind power generation systems.

关 键 词：无刷双馈感应发电机 空载并网 变速恒频 控制绕组磁链 

分 类 号：TM315[电气工程—电机]