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This paper proposes a new active damping method for LCL filter resonance. The proposed method employs a dual feedback loop of the capacitor voltage and the grid current. Based on the proposed method, non-minimum phase behavior can be avoided over a wide range of resonant frequencies. Co-design procedures for both the active damping loops along with the fundamental current regulator are introduced...
This paper studies a modified DC-DC boost converter where the input inductance has been replaced by an LCL filter. The voltage conversion ratio of the proposed converter is equivalent to the conversion ratio of a conventional boost converter, and it has only one active switching device. A controller is proposed to regulate the output voltage to a given reference with guaranteed reduced input current...
Widespread deployment of Voltage Source Inverters (VSI-s) in high penetration applications like distributed generation, UPS and stand-alone renewable energy conditioning imposes stringent demands on reliability and output voltage regulation. Reported literature offers numerous solutions for output voltage regulation, which includes twin aspects of command tracking and output impedance control. Most...
This paper deals with the energy management problem of a Proton Exchange Membrane Fuel Cell (PEMFC) with Supercapacitor (SC) hybrid system. An innovative Interconnection and Damping Assignment Passivity-based Controller (IDA-PBC) with multi-equilibrium states is proposed in this paper. The hybrid system is first modeled as a Port-controlled Hamiltonian (PCH) system by considering the PEMFC and the...
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