Mohammad Monfared - Academia.edu (original) (raw)
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Chittagong University of Engineering & Technology (CUET)
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Papers by Mohammad Monfared
International Journal of Industrial Electronics, Control and Optimization (IECO), 2019
This paper presents a wide range of gain buck-boost type PFC rectifiers based on the conventional... more This paper presents a wide range of gain buck-boost type PFC rectifiers based on the conventional buck-boost DC-DC converter. This novel rectifier is fed by a buck-type Z-source network at the DC side with the help of an inductor smoothing the AC side input current. The proposed PFC rectifier offers better input and output waveform qualities compared to the conventional buck-boost PFC rectifiers. Maintaining near to unity power factor (PF) and low total harmonic distortion (THD) in a wide range of load variations and also simple single-loop control are the main features of the proposed PFC rectifier. Furthermore, the switching frequency of the proposed rectifier can be chosen much higher than the competitors since it successfully allows increasing the duty cycle for the same voltage gain incredibly compared to the traditional solutions. This leads to a reduced size of passive components and volume of the rectifier. A 250 W prototype circuit is designed and simulated considering most practical issues to evaluate the performance of the proposed PFC in both buck and boost modes. The results that are compared with some well-known conventional PFC rectifiers confirm the superior performance of the proposed topology.
International Journal of Industrial Electronics, Control and Optimization (IECO), 2019
This paper presents a wide range of gain buck-boost type PFC rectifiers based on the conventional... more This paper presents a wide range of gain buck-boost type PFC rectifiers based on the conventional buck-boost DC-DC converter. This novel rectifier is fed by a buck-type Z-source network at the DC side with the help of an inductor smoothing the AC side input current. The proposed PFC rectifier offers better input and output waveform qualities compared to the conventional buck-boost PFC rectifiers. Maintaining near to unity power factor (PF) and low total harmonic distortion (THD) in a wide range of load variations and also simple single-loop control are the main features of the proposed PFC rectifier. Furthermore, the switching frequency of the proposed rectifier can be chosen much higher than the competitors since it successfully allows increasing the duty cycle for the same voltage gain incredibly compared to the traditional solutions. This leads to a reduced size of passive components and volume of the rectifier. A 250 W prototype circuit is designed and simulated considering most practical issues to evaluate the performance of the proposed PFC in both buck and boost modes. The results that are compared with some well-known conventional PFC rectifiers confirm the superior performance of the proposed topology.