A New PWM Shoot-through Control For Voltage-Fed Quasi-Z-Source DC/DC Converters

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Kafle, Yuba Raj
Hasan, Saad Ul
Kashif, Muhammad
Hossain, Jahangir
Town, Graham E
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2017
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Gold Coast, Australia

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Abstract

This paper presents a new shoot-through control method applicable for an impedance source galvanically isolated DC/DC converter. In impedance source converters, the introduction of shoot-through states increases the switching speed of H-bridge switches about two to three times the switching frequency. This approach reduces the switching transient of all switches of inverters by commutating them once in a switching cycle. The shoot-through states are generated by alternatively switching the single leg of the inverter whereas, in baseline modulation approach, all the switches are turned on during shoot-through states. This method decreases the switching loss of front-end converters and independent controllability of active and shoot through states. This modulation technique is applied and validated to a voltage-feed Quasi-Z source isolated DC-DC converter with a voltage doubling rectifier.

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2017 IEEE International Telecommunications Energy Conference (INTELEC)

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Electrical engineering

Engineering, Electrical & Electronic

Telecommunications

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Kafle, YR; Hasan, SU; Kashif, M; Hossain, J; Town, GE, A New PWM Shoot-through Control For Voltage-Fed Quasi-Z-Source DC/DC Converters, 2017 IEEE International Telecommunications Energy Conference (INTELEC), 2017, 2017-October, pp. 494-497