Title :
New drive system using VF controlled inverter and current controlled inverter suitable for high-power drives
Author :
Kawabata, Yoshitaka ; Ejiogu, Emenike C. ; Kawabata, Takao
Author_Institution :
Dept. of Electr. & Electron. Eng., Ritsumeikan Univ., Kyoto, Japan
Abstract :
A new drive configuration suitable for high-power and high-performance drives is presented. Usually, in drive systems rated more than 7000 kW, two three-level inverters have been combined using inter-phase reactors. However, inter-phase reactors have problems of acoustic noise and high losses. To overcome these problems, we propose a new drive configuration using a wound-rotor induction motor and two inverters. The outputs of the two inverters are combined electro-mechanically within the induction machine. The control system, which has been implemented using a DSP (TMS320C40), as well as the novel features obtained with this new configuration are clearly explained
Keywords :
digital control; digital signal processing chips; electric current control; frequency control; induction motor drives; invertors; machine control; rotors; voltage control; TMS320C40 DSP; VF controlled inverter; current controlled inverter; drive system; electro-mechanically combined outputs; high-performance drives; high-power drives; wound-rotor induction motor; Acoustic noise; Control systems; Equations; Frequency; Induction motors; Inductors; Inverters; Stators; Torque; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.701980
