Second-order Harmonic Ripple Mitigation: A Solution for the Micro-Inverter Applications
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Date
2018
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Publisher
IEEE
Abstract
Single-phase inverter suffers an unwanted second-order ripple at DC input of it. A substantial amount of this ripple may propagate through the system components and inject into the DC source. This causes several problems; related to system efficiency, life, cost, size, reliability and stability. This paper proposes an adaptive non-linear sliding mode controller for quasi-switched boost inverter used mainly in microinverter applications. The proposed controller shapes the output-impedance of the boost circuit of quasi-switched boost inverter such that the propagation of the ripple to DC source is resisted. The proposed control technique is verified using Matlab-Simulink.
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Keywords
EEE, Adaptive sliding mode control (SMC), Dynamic performance, Quasi-switched boost inverter, Second-order ripple