A Bipolar Voltage Gain Boost AC-AC Converter Based on Four Switching Transistors

In numerous applications, such as the correction of grid voltage during voltage sag or swell events caused by system faults, it is necessary to ensure the stabilization of the output voltage with in-phase and out-phase features. This feature can also be employed in high-voltage-gain AC to DC convers...

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Autores principales:	Naveed Ashraf, Ghulam Abbas, Nasim Ullah, Sattam Al Otaibi, Ahmed Althobaiti, Muhammad Zubair, Umar Farooq
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	voltage sag voltage controller voltage gain switching transistors non-inverting features inverting features Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/982f2abb134c4a779da2027399f4ea4e
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id	oai:doaj.org-article:982f2abb134c4a779da2027399f4ea4e
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spelling	oai:doaj.org-article:982f2abb134c4a779da2027399f4ea4e2021-11-11T15:17:36ZA Bipolar Voltage Gain Boost AC-AC Converter Based on Four Switching Transistors10.3390/app1121102542076-3417https://doaj.org/article/982f2abb134c4a779da2027399f4ea4e2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10254https://doaj.org/toc/2076-3417In numerous applications, such as the correction of grid voltage during voltage sag or swell events caused by system faults, it is necessary to ensure the stabilization of the output voltage with in-phase and out-phase features. This feature can also be employed in high-voltage-gain AC to DC conversion. AC voltage control schemes with one-stage conversion are viable approaches in this regard as only voltage regulation is needed. This conversion approach has strong potential for such applications as it is simple to realize. The voltage-correcting compensators are connected in series with the lines. The inputs of the AC voltage controllers employed in the voltage-correcting compensators may be connected to the faulty phase or other healthy phases. The number of AC voltage controllers used in a voltage compensator are one and two if its input power is drawn from the faulty and non-faulty phases, respectively. In the latter case, voltage gains and phase adjustment are major problems. There is no such issue in the first approach, where the voltage-correcting controller is connected to the line where the voltage variation is to be corrected. A high voltage gain more than the unity of both voltage polarities is required if the depth level of the correcting voltage is around 50% or more. The size and cost of a voltage-correcting controller depend on the number of switching transistors, as an isolated DC source with a gate-controlling circuit is a mandatory requirement for the switching operation of each transistor. Therefore, in the suggested research, an AC voltage controller having bipolar voltage gain is realized only with four switching transistors and six diodes, which reduces the overall size and cost significantly. The verification of the suggested topology is ensured by obtaining the simulation and real results from Simulink-based and practical-based platforms, respectively.Naveed AshrafGhulam AbbasNasim UllahSattam Al OtaibiAhmed AlthobaitiMuhammad ZubairUmar FarooqMDPI AGarticlevoltage sagvoltage controllervoltage gainswitching transistorsnon-inverting featuresinverting featuresTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10254, p 10254 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	voltage sag voltage controller voltage gain switching transistors non-inverting features inverting features Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	voltage sag voltage controller voltage gain switching transistors non-inverting features inverting features Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Naveed Ashraf Ghulam Abbas Nasim Ullah Sattam Al Otaibi Ahmed Althobaiti Muhammad Zubair Umar Farooq A Bipolar Voltage Gain Boost AC-AC Converter Based on Four Switching Transistors
description	In numerous applications, such as the correction of grid voltage during voltage sag or swell events caused by system faults, it is necessary to ensure the stabilization of the output voltage with in-phase and out-phase features. This feature can also be employed in high-voltage-gain AC to DC conversion. AC voltage control schemes with one-stage conversion are viable approaches in this regard as only voltage regulation is needed. This conversion approach has strong potential for such applications as it is simple to realize. The voltage-correcting compensators are connected in series with the lines. The inputs of the AC voltage controllers employed in the voltage-correcting compensators may be connected to the faulty phase or other healthy phases. The number of AC voltage controllers used in a voltage compensator are one and two if its input power is drawn from the faulty and non-faulty phases, respectively. In the latter case, voltage gains and phase adjustment are major problems. There is no such issue in the first approach, where the voltage-correcting controller is connected to the line where the voltage variation is to be corrected. A high voltage gain more than the unity of both voltage polarities is required if the depth level of the correcting voltage is around 50% or more. The size and cost of a voltage-correcting controller depend on the number of switching transistors, as an isolated DC source with a gate-controlling circuit is a mandatory requirement for the switching operation of each transistor. Therefore, in the suggested research, an AC voltage controller having bipolar voltage gain is realized only with four switching transistors and six diodes, which reduces the overall size and cost significantly. The verification of the suggested topology is ensured by obtaining the simulation and real results from Simulink-based and practical-based platforms, respectively.
format	article
author	Naveed Ashraf Ghulam Abbas Nasim Ullah Sattam Al Otaibi Ahmed Althobaiti Muhammad Zubair Umar Farooq
author_facet	Naveed Ashraf Ghulam Abbas Nasim Ullah Sattam Al Otaibi Ahmed Althobaiti Muhammad Zubair Umar Farooq
author_sort	Naveed Ashraf
title	A Bipolar Voltage Gain Boost AC-AC Converter Based on Four Switching Transistors
title_short	A Bipolar Voltage Gain Boost AC-AC Converter Based on Four Switching Transistors
title_full	A Bipolar Voltage Gain Boost AC-AC Converter Based on Four Switching Transistors
title_fullStr	A Bipolar Voltage Gain Boost AC-AC Converter Based on Four Switching Transistors
title_full_unstemmed	A Bipolar Voltage Gain Boost AC-AC Converter Based on Four Switching Transistors
title_sort	bipolar voltage gain boost ac-ac converter based on four switching transistors
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/982f2abb134c4a779da2027399f4ea4e
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A Bipolar Voltage Gain Boost AC-AC Converter Based on Four Switching Transistors

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