Title :
A CPLD-based voltage/current vector controller for 3-phase PWM inverters
Author :
Jyang, Jin-Yi ; Tzou, Ying-Uu
Author_Institution :
Dept. of Electr. & Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
This paper presents the design and implementation of a vector control IC using complex programmable logic device (CPLD). A vector oriented control structure using integer arithmetic has been developed for the voltage or current regulation of 3-phase PWM inverters. This vector control IC can be used for the voltage or current control of a 3-phase PWM inverter using a vector command with specified amplitude, frequency, and phase. It has four operation modes: voltage or current control in either stationary or synchronous reference frame. This vector control IC is designed as a co-processor for a general-purpose microcontroller used for AC motor control and 3-phase power supplies. This vector control IC is realized with a 10-bit data bus and employs about 40 thousand logic gates of a CPLD (FLEX 10K 100) from Altera Co. The sampling rate can be programmed up to 50 kHz. Simulation and experimental results are given to illustrate the performance of the designed vector control IC
Keywords :
PWM invertors; control system synthesis; electric current control; programmable logic devices; voltage control; 10-bit data bus; 3-phase PWM inverters; 3-phase power supplies; AC motor control; co-processor; complex programmable logic device; current regulation; integer arithmetic; microcontroller; vector control IC; vector oriented control structure; voltage regulation; Arithmetic; Coprocessors; Current control; Frequency; Machine vector control; Microcontrollers; Programmable logic devices; Pulse width modulation; Pulse width modulation inverters; 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.1998.701909
