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IET power electronics, 2017-12, Vol.10 (15), p.2042-2054
Ort / Verlag
The Institution of Engineering and Technology
Erscheinungsjahr
2017
Link zum Volltext
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
In this study, two quadratic boost derived hybrid multi-output converter topologies are proposed. The proposed converters are capable of giving n-number of simultaneous ac and one dc outputs. The proposed converters are developed from a single switch quadratic boost converter by replacing its main switch by either n-number of series connected H-bridge or n-number of parallel connected H-bridge inverter topologies. The converter developed from n-series connected H-bridge inverters give series mode of the proposed converter and is capable of giving n-number of ac outputs with variable voltages and same currents (to all the ac loads) along with one dc output. Further, the converter developed from n-parallel connected H-bridge inverters give parallel mode of the proposed converter and can give n-number of ac outputs with same voltages (to all the ac loads) and variable currents along with one dc output. Due to the quadratic behaviour of the proposed hybrid multi-output converters, high voltage gain can be achieved from small shoot-through duty cycle. The proposed converter topologies can be applied for simultaneous dc/ac and dc/dc power conversion in a hybrid microgrid. Steady state and dynamic modelling have been carried out for analysing the steady state and transient behaviour of the proposed hybrid converters for two ac and one dc outputs. Simulation and experimental results are presented and efficiency analysis is carried out to validate the performance of the proposed converter topologies for two ac and one dc outputs.