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A novel fractional proportional-resonant current controller for Voltage Source Converters
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| Author(s) |
DANIEL HEREDERO-PERIS |
| Abstract |
This paper proposes a hybrid controller that combines conventional proportional-resonant controllerswith the more recent application of fractional order calculus applied to the current control loop of voltagesource converters. The use of existing non-integer orders applied to proportional-integral controllersis extended to resonant controllers. The application of fractional exponents for the integro-derivativeparts contributes with an extra degree of freedom that permits to enhance the obtained response in anextended frequency range when the closed-loop bode diagram is analysed. Different implementationalternatives in the continuous time domain are presented, and the most suitable one is selected. Thenew controller formulation capabilities are compared with conventional proportional-resonant controllersvia simulations and its performance is validated in a test platform based on a 20 kVA silicon-carbideconverter acting as an active filter. |
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| Filename: | 0069-epe2016-full-15154778.pdf |
| Filesize: | 1.003 MB |
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| Type |
Members Only |
| Date |
Last modified 2017-04-13 by System |
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