Enhanced Control Design of Simple DC-DC Boost Converter-driven DC Motors: Analysis and Implementation

The DC-DC boost converter is one of the simplest power electronic devices that has not been yet exploited in a wide range of industrial applications due to control design difficulties caused by its model inherent special structure. Such an industrial application is the DC motor speed regulation that...

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Bibliographic Details
Published inElectric power components and systems Vol. 43; no. 17; pp. 1946 - 1957
Main Authors Konstantopoulos, George C., Alexandridis, Antonio T.
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 21.10.2015
Taylor & Francis Ltd
Subjects
Closed loop systems
Control
Convergence
Converters
dc drives
dc-dc boost converter control
Design engineering
Direct current
Electric currents
Electric motors
Industrial applications
motor speed control
nonlinear control and analysis
Nonlinearity
Simulation
Stability
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Summary:The DC-DC boost converter is one of the simplest power electronic devices that has not been yet exploited in a wide range of industrial applications due to control design difficulties caused by its model inherent special structure. Such an industrial application is the DC motor speed regulation that is studied in the present work. Particularly, in this article, a novel, non-linear control scheme for the duty ratio input of the converter is proposed, which is extensively analyzed and experimentally tested. The proposed design, though non-linear, results in a very simple scheme, ensures that the duty ratio takes values exclusively in the permitted range [0,1), achieves precise speed regulation even in cases of high unknown load disturbances, and does not depend on system parameters and states. Simultaneously, the design is formulated in a manner that provides a closed-loop passive system, which, as proven in the article, satisfies all these assumptions and properties that make possible the application of a new advanced non-linear method that strongly connects passivity with stability. Thus, the boundedness of all the closed-loop states and the stability and convergence to the desired steady-state equilibrium are directly concluded. The theoretical analysis is verified through extended simulation and experimental results.
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ISSN:1532-5008
1532-5016
DOI:10.1080/15325008.2015.1070383