DocumentCode :
1556485
Title :
A DSP-based single-phase AC power source
Author :
Low, Kay Soon
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
Volume :
46
Issue :
5
fYear :
1999
fDate :
10/1/1999 12:00:00 AM
Firstpage :
936
Lastpage :
941
Abstract :
This paper presents the development of a single-phase AC power source, which is capable of generating high-quality sinusoidal waveforms with adjustable amplitudes and frequencies over a wide range. Moreover, various types of arbitrary waveforms can also be generated. The system consists essentially of a well-controlled single-phase pulsewidth modulated inverter. To perform tight closed-loop control of the inverter, a digital controller based on the generalized predictive control approach has been developed. The controller gains are determined by minimizing a cost function that reduces both the tracking error and the control signals. To evaluate the proposed approach, a digital-signal-processor-based experimental prototype has been constructed. Experimental results under various loading conditions have demonstrated that the system performs well
Keywords :
DC-AC power convertors; PWM invertors; closed loop systems; digital control; digital signal processing chips; electric current control; power engineering computing; power supplies to apparatus; predictive control; voltage control; DSP-based single-phase AC power source; adjustable amplitudes; adjustable frequencies; closed-loop control; controller gains; cost function minimisation; development; digital controller; generalized predictive control approach; high-quality sinusoidal waveforms generation; loading conditions; single-phase PWM invertors; AC generators; Cost function; Digital control; Error correction; Frequency; Power generation; Predictive control; Pulse inverters; Pulse modulation; Pulse width modulation inverters;
fLanguage :
English
Journal_Title :
Industrial Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0046
Type :
jour
DOI :
10.1109/41.793342
Filename :
793342
Link To Document :
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