Title :
Beat-less control technology and its application in three-level inverter
Author :
Ge, Xinglai ; Feng, Xiaoyun ; Liu, Baisi ; Chen, Shihao
Author_Institution :
Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu
Abstract :
The paper analyzed the generating process of second-harmonic DC-link voltage and the influence of beat phenomenon on traction motor in the single-phase three-level converter-inverter traction system of high-speed EMUs. Based on the research of operation modes of traction inverter, the beat-less control technology was given, and different control strategies under multi-pulse modulation and single-pulse control mode were presented. The beat-less control algorithm was proved to be effective by MATLAB simulation and DSP-based control experiment system.
Keywords :
PWM invertors; PWM power convertors; machine control; traction motors; DSP-based control; MATLAB simulation; PWM converter; beat-less control technology; high-speed electric multiple unit; multipulse modulation; second-harmonic DC-link voltage; single-pulse control mode; three-level converter-inverter traction system; traction motor; Circuits; Control systems; Filters; Frequency conversion; MATLAB; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Traction motors; Voltage control;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
