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This paper presents a developed impedance-type power inverter that is termed switched-inductor Z-source inverter. To enlarge voltage adjustable ability, the proposed inverter employs a unique switched-inductor impedance network to couple the main circuit and power source. Compared with the classical Z-source inverter, the proposed inverter increases the voltage boost inversion ability significantly,...
In this paper, a quasi sliding mode controller is proposed to control single phase PFC boost converter. The outer voltage loop is PI control and the sliding mode control is used in the inner current loop. The designed quasi sliding mode controller has advantages such as robustness when there are large variations in line voltage and output load. Moreover, the chosen sliding surface avoid the differentiator...
The three-phase three-level unity PF rectifier can be used to improve the power factor of a three-phase rectifier. However, its ldquocritical input inductorrdquo is calculated for the nominal load condition, both the power factor and total harmonic distortion are degraded in low-output power region. A novel strategy implementing reference compensation current is proposed based on the operation principle...
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