Improved Virtual Vector Direct Torque Control of Induction Motor Based on Three-level NPC Inverter

摘要：

This paper describes the direct torque control method based on improved virtual vector modulation. Neutralpoint voltage is used as feedback in control process. Through adjusting the operation time of each vector,the neutral-point voltage variation can be greatly limited and the voltage shifting can be eliminated. The DTC system with a high performance is constructed on the improved technique. Simulation results prove that the improved algorithm is feasible and suitable to the three-level DTC drive based on NPC inverter.

关键词： virtual vector direct torque control three-level inverter neutral-point voltage balance.

作者: Liming Hou Yunfeng Li Xiaoyun Feng Hengbin Cui

作者单位: Department of Electrical Engineering,Southwest Jiao Tong University Chengdu,610031,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 2796-2800

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）