NDLI: Current-sharing bus and fuzzy gain scheduling of proportional–integral controller to control a parallel-connected AC/DC converter

Content Provider	IET Digital Library
Author	Kanthaphayao, Yutthana Chunkag, Viboon
Abstract	In this study, a current-sharing bus and fuzzy gain scheduling of proportional–integral (PI) controller to control a parallel-connected AC/DC converter are proposed. A simple current-sharing circuit is applied to divide the load current to calculate the peak input current of each converter module. Fuzzy gain scheduling of PI controller is used to compensate for the error of the output voltage. The dsPIC30F6010 microcontroller is applied in the voltage loop control. In addition, a hysteresis control circuit is used to control the current loop. The experimental performance evaluation is conducted on a prototype, with three converter modules that are parallel-connected, has 250 W/module and has a −48 V DC output voltage. The system offers the following advantages: the tight output voltage regulates both the steady-state operation and the transient response. The current sharing is quite good, and it is simpler to operate in the redundant mode.
Starting Page	2525
Ending Page	2532
Page Count	8
ISSN	17554535
Volume Number	7
e-ISSN	17554543
Issue Number	Issue 10, Oct (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/7/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2013.0807
Journal	IET Power Electronics
Publisher Date	2014-07-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC-DC Power Converter Control Engineering Computing Control of Electric Power System Current Control Current Loop Control Current-sharing Bus DsPIC30F6010 Microcontroller Electric Current Control Error Compensation Experimental Performance Evaluation Fuzzy Control Fuzzy Gain Scheduling Hysteresis Hysteresis Control Circuit Load Current Division Microcontroller Microprocessor Chips Microprocessors And Microcomputer Output Voltage Error Compensation Parallel-connected AC-DC Converter Peak Input Current Calculation PI Control Power 250 W Power Electronics Power Engineering Computing Power Supply Proportional-integral Controller Steady-state Operation Regulation Supervisory Circuit Tight Output Voltage Transient Response Transient Response Regulation Voltage -48 V Voltage Control Voltage Loop Control
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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