Version 1
: Received: 26 August 2024 / Approved: 26 August 2024 / Online: 27 August 2024 (11:15:20 CEST)
How to cite:
Pavón, N. G. V.; Téllez, A. A.; Urbano, J. R.; Taramuel, V.; Guanga, E. Evaluation of an Infinite-Level Inverter Operation Powered by a DC-DC Converter in Open and Closed Loop. Preprints2024, 2024081935. https://doi.org/10.20944/preprints202408.1935.v1
Pavón, N. G. V.; Téllez, A. A.; Urbano, J. R.; Taramuel, V.; Guanga, E. Evaluation of an Infinite-Level Inverter Operation Powered by a DC-DC Converter in Open and Closed Loop. Preprints 2024, 2024081935. https://doi.org/10.20944/preprints202408.1935.v1
Pavón, N. G. V.; Téllez, A. A.; Urbano, J. R.; Taramuel, V.; Guanga, E. Evaluation of an Infinite-Level Inverter Operation Powered by a DC-DC Converter in Open and Closed Loop. Preprints2024, 2024081935. https://doi.org/10.20944/preprints202408.1935.v1
APA Style
Pavón, N. G. V., Téllez, A. A., Urbano, J. R., Taramuel, V., & Guanga, E. (2024). Evaluation of an Infinite-Level Inverter Operation Powered by a DC-DC Converter in Open and Closed Loop. Preprints. https://doi.org/10.20944/preprints202408.1935.v1
Chicago/Turabian Style
Pavón, N. G. V., Victor Taramuel and Edwin Guanga. 2024 "Evaluation of an Infinite-Level Inverter Operation Powered by a DC-DC Converter in Open and Closed Loop" Preprints. https://doi.org/10.20944/preprints202408.1935.v1
Abstract
This paper evaluates the open and closed loop DC-DC converter operation within a DC coupling multilevel inverter architecture to obtain an infinite level stepped sinusoidal voltage. Adding a cascade controller to the DC-DC converter should reduce the settling time and increase the number of levels in the output voltage waveform, it could decrease the speed error and phase shift concerning the sinusoidal reference signal. The proposed methodology consists of implementing an experimental multilevel inverter with DC coupling, through a single-phase bridge inverter energized from a BUCK converter, trigger signals for the two converters are obtained from a control circuit based in an ATMEGA644P microcontroller, and a digital controller is also implemented to evaluate the operation of the BUCK converter in open and closed loop and observe its influence in the stepped sinusoidal output voltage. The evaluation is performed to energize a resistive load with common output voltage in multilevel inverters, that is 3, 5, 7, 11, and infinity levels. Results show that during the design stage, fast dynamic elements, like the storage capacitor, can be used to obtain a minimum THD because the settling time is sufficiently fast and the speed error remains small and there isn’t a need for a controller. A digital controller requires processing time and although in theory, it can reduce the settling time to a minimum, the processor introduces latency in the control signals generation, producing the opposite effect. Controller complexity of the digital controller must be considered because it increases processing time and influences the efficiency of the closed-loop operation.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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