A single-phase, single-stage, differential boost inverter comprises two independently-controlled boost DC-DC converters, with the load connected between their outputs. The net voltage on the load is sinusoidal and has a controllable frequency and magnitude that is larger than that of the DC source. The present work first derives steady-state and small-signal models of the inverter with parasitic elements. The results obtained from the line-to-output transfer function, control-to-output transfer function, open-loop input impedance, and open-loop output impedance models are compared with that of the ones obtained from the experimental testbed. Using the new models, a voltage mode controller is designed in the synchronous reference frame. The regulator design is explored through the use of an example. The results are verified against the small-signal model, then PLECS simulations, and finally a laboratory experiment. The results indicate excellent agreement between the model and experiment during transients in voltage reference, input source voltage, and output load. A sensitivity analysis is performed based on the inverter model considering the parameter variation. Finally, loss and efficiency estimations are provided in this work.
M. Rasheduzzaman et al., "Modeling, Analysis, and Control Design of a Single-Stage Boost Inverter," Energies, vol. 14, no. 14, article no. 4098, MDPI, Jul 2021.
The definitive version is available at https://doi.org/10.3390/en14144098
Electrical and Computer Engineering
Keywords and Phrases
Boost Inverter; Small-Signal Model; Synchronous Reference Frame; Voltage Mode Controller
International Standard Serial Number (ISSN)
Article - Journal
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02 Jul 2021