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This paper introduces the adaptive slope compensation method into the digital clamping current control at various input voltages to improve the power factor (PF) and the total harmonic distortion (THD) of the universal input. The controller conducts a phase-management mechanism for various input voltages and load conditions to raise the circuit conversion efficiency. The optimal switching timing for...
This paper investigates power control to regulate both inputs of dual-input DC/AC inverter independently. The dual-input DC/AC inverter topologies can be either neutral point clamp (NPC) or T-type three-level inverter. A mathematical model is established to derive the relationship between the dual-input power and the duty cycle of the DC/AC inverter. Then a control scheme is proposed to decouple the...
With the proliferation of alternate power sources such as fuel cells system in the distributed power system, inverter is the key component of the system. Parallel inverter systems can be designed to have the advantages to improve output power and reliability etc. In order to share the load and restrain circumfluence, A power sharing control technique for inverter parallel operation is described in...
In this paper, a modelling method for the parallel operation of inverters in a micro-grid system is proposed. Conventionally, the droop method has been applied to achieve a simple structure and no-interconnections among power sources. The small signal model of the wireless parallel inverter allows obtaining the behaviour of the system in function of frequency and voltage droop. The model is simple...
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