Quasi-Z-source based bidirectional DC-DC converter and its control strategy
Yuba Raj Kafle,Saad Ul Hasan,Graham Town +2 more
- Vol. 5, Iss: 1, pp 1-9
TLDR
This paper presents a quasi-Z-source based isolated bidirectional DC-DC converter (qZIBDC) for renewable energy applications that has a wider input/output voltage operating range, soft-switching capabilities without additional devices, and higher boost capability than a traditional dual active bridge circuit.Abstract:
This paper presents a quasi-Z-source based isolated bidirectional DC-DC converter (qZIBDC) for renewable energy applications. The converter utilizes a dual active bridge circuit with a quasi-Z-source network on both sides, so the converter works as buck/boost converter from either side. It has a wider input/output voltage operating range, soft-switching capabilities without additional devices, and higher boost capability than a traditional dual active bridge circuit. Apart from that, shoot-through states are incorporated in its operating cycle to boost the input voltage resulting in high reliability of the proposed converter. Due to the symmetrical structure of the circuit, there is no defined high voltage or low voltage side as in traditional isolated bidirectional DC-DC converter. The operating principle and control strategy of the proposed converter are presented. Simulation and experimental results are provided to verify the effectiveness of the proposed converter topology and its control strategy.read more
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Analysis and Dual-loop PI Control of Bidirectional Quasi Z-Source DC-DC Converter
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A Review of Control Methods on Suppression of 2ω Ripple for Single-Phase Quasi-Z-Source Inverter
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