Design and implementation of a CPLD-based SVPWM ASIC for variable-speed control of AC motor drives

Author

Tsai, Ming-Fa ; Chen, Hsien-Chang

Author_Institution

Dept. of Electr. Eng., Minghsin Inst. of Technol., Hsinchu, Taiwan

Volume

1

fYear

2001

fDate

22-25 Oct. 2001

Firstpage

322

Abstract

In this paper, we present the design and implementation of an SVPWM ASIC for variable-speed control of AC motor drives, employing an Altera FLEX 10K100A CPLD device. Given the d-q axes sinusoidal references from the EPROM look-up tables, the ASIC can generate alternating-reversing switching PWM sequences to control the motor speed. The firing times of the PWM sequences are functions of the switching period, the DC bus voltage, and the component voltage of the reference vector. The computation of the functions is simple, and hence can be easily carried out by digital hardware. Simulation and experimental results show the performance of the proposed SVPWM ASIC.

Keywords

AC motor drives; PWM invertors; angular velocity control; application specific integrated circuits; machine control; programmable logic devices; variable speed drives; AC motor drives; Altera FLEX 10K100A CPLD device; DC bus voltage; EPROM look-up tables; PWM inverter; SVPWM ASIC; alternating-reversing switching PWM sequences; component voltage; d-q axes sinusoidal references; digital hardware; firing times; motor speed control; variable-speed control; AC motors; Application specific integrated circuits; EPROM; Electric variables control; Field programmable gate arrays; Hardware; Programmable logic arrays; Pulse width modulation inverters; Space vector pulse width modulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 2001. Proceedings., 2001 4th IEEE International Conference on

Print_ISBN

0-7803-7233-6

Type

conf

DOI

10.1109/PEDS.2001.975334

Filename

975334