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Title: Reduction of low-frequency current ripples in fuel cell power conditioning systems using proportional-resonant control
Authors: Cao, L
Loo, KH 
Lai, YM 
Keywords: Electric current control
Fuel cells
Harmonics suppression
Power conversion harmonics
Proportional control
Voltage control
Issue Date: 2013
Publisher: IEEE
Source: IECON 2013-39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013-39th Annual Conference of the IEEE, 10-13 November 2013, Vienna, p. 8002-8007 How to cite?
Abstract: The control methods used to reduce low-frequency current ripples in fuel cell power conditioning systems are discussed. The concept of minimized impedance design for the flow of harmonic currents in the energy storage branch is proposed since it can help improve the system dynamic response and harmonic absorption. The effects of different control strategies (including single voltage loop, single current loop and outer-voltage inner-current control loop) on the output impedance are evaluated and compared. Furthermore, proportional-resonant controllers are introduced to generate extremely low impedance for harmonic currents at specific frequencies. The theoretical analysis and control strategies are verified by simulation results.
ISSN: 1553-572X
DOI: 10.1109/IECON.2013.6700470
Appears in Collections:Conference Paper

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