Abstract
Alternative voltage control strategies for current-regulated PWM inverters are analyzed, including previously established feedforward and feedforward/feedback controllers and a newly proposed decoupling feedback control strategy. The steady-state and dynamic characteristics of each of these control methods are illustrated and compared for a selected inverter design. It is shown that the feedforward controller exhibits steady-state error and an undesirable overshoot of the output voltages during startup. The addition of a feedback loop eliminates the steady-state error and reduces the overshoot; however, the natural response is underdamped regardless of the choice of feedback gains. A decoupling feedback control strategy that eliminates the disadvantages of the feedforward and feedforward/feedback controllers is described. Using the decoupling feedback controller, it is possible to eliminate the steady-state error and place the closed-loop poles wherever desired. Moreover, if the closed-loop poles are selected appropriately, it is possible to eliminate the overshoot of the output voltages during startup transients. © 1996 IEEE.
Recommended Citation
O. Wasynczuk et al., "A Voltage Control Strategy for Current-Regulated PWM Inverters," IEEE Transactions on Power Electronics, vol. 11, no. 1, pp. 7 - 15, Institute of Electrical and Electronics Engineers, Dec 1996.
The definitive version is available at https://doi.org/10.1109/63.484411
Department(s)
Electrical and Computer Engineering
International Standard Serial Number (ISSN)
0885-8993
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Dec 1996
Comments
Naval Surface Warfare Center, Grant None