Single-Phase to Three-Phase Converters With Two Parallel Single-Phase Rectifiers and Reduced Switch Count

Rocha, Nady; Oliveira, Ítalo A. Cavalcanti de; Menezes, Ely Cavalcanti de; Jacobina, Cursino B.; Dias, José Artur Alves

doi:10.1109/tpel.2015.2458699

Cited by 26 publications

(7 citation statements)

References 42 publications

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“…Tus, many tries have been conducted to reduce the expenses of PEC, in which the mentioned converters are introduced with diferent names such as semiconductor switches reduction, switch-reduced converter, low-cost converter, and element-reduced converters with other usages as well [1]. In a four-switch threephase converter (FSTPC) with two legs, there are two switches less than six switches with three legs [2]. Terefore, a FSTPC is in the reduced switches group.…”

Section: Introductionmentioning

confidence: 99%

Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage

Bidgoli

Honarbari²

2022

International Transactions on Electrical Energy Systems

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One of the main challenges of a four-switch three-phase rectifier (FSTPR) is a DC imbalance in capacitor voltages. On the other hand, under unbalanced grid voltage conditions, unbalanced three-phase input current and the DC-link voltage affect the performance of the FSTPR. Although many papers focus on designing a controller to balance DC-link capacitor voltage, a few papers are available to cope with the imbalance of DC-link capacitor voltages and input current simultaneously under unbalanced grid voltage. In this paper, first, the operation of the FSTPR under unbalanced grid voltage conditions is investigated. It can be seen that under these conditions, the oscillatory parts of the active and reactive input power, i.e., sin and cos components, are the leading cause of the problems that can severely degrade the FSTPR performance of the controller. Therefore, this paper presents a promising control technique to eliminate the mentioned oscillation components. Aiming at this purpose, the current control loops in the dq axis are divided into two positive and negative sequences, i.e., idq+ and idq−. Simulation results in MATLAB/SimPowerSystem™ show that the proposed controller can reduce the output voltage ripple, the total harmonic distortion, and the unbalancing of input current compared to a conventional controller. Under these conditions, the DC-link capacitor voltages are more balanced, significantly reducing the voltage limiter of the FSTPR.

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Section: Introductionmentioning

confidence: 99%

Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage

Bidgoli

Honarbari²

2022

International Transactions on Electrical Energy Systems

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“…Compared to Fig. 1, the three-phase full bridge inverter requires only 5 contacts (2 for supplies and 3 for outputs) [3] , which reduced the complexity. The following paragraphs give an overview of the literature studies that try to drive the SRM via the full bridge topology.…”

Section: Introductionmentioning

confidence: 99%

A Novel Driving Method for Switched Reluctance Motor With Standard Full Bridge Inverter

Sun

Moghaddam

Sergeant

et al. 2020

IEEE Trans. Energy Convers.

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This paper proposes a new driving method for a switched reluctance motor (SRM) by using a standard full bridge. The windings in the SRM are connected in series to build a ring structure, where a controllable DC source is inserted. Based on the new structure, the theoretical analysis and calculation are made to determine the control parameters. Besides three-phase SRM, the new idea can also be applied to the SRMs with four and five phases. The new driving method is compared with the conventional method by simulation. The results show that with the new method, the ripple of torque and speed in the SRM reduces. The influence of the proposed method on the power rating and losses is then analyzed. The validation is also made to verify the application of the new method and the difference between the conventional driving method and the proposed method. The measured results match the simulated results well.

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“…Besides, the change control strategy should be done to reduce the complexity of the control system. Some efforts have been accomplished in previous studies to modify a traditional converter as a new component minimized structure. Regarding the inverter, some component minimized structures have been introduced in previous literatures .…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of a new four‐switch modified quasi Z‐source inverter with improved space vector control method

Khosravi

Mirzaei

Rezvanyvardom

2019

Circuit Theory & Apps

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Summary This paper proposes a novel cost‐effective feature as a three‐phase four‐switch inverter utilizing a modified quasi Z‐source (MQZs) network. This inverter exploits a pulse‐width modulation (PWM) control strategy based on developed space vectors to provide balanced three‐phase output voltages and currents. It also has many applications such as the three‐phase induction motor (IM) with adjustable speed drive (ASD) fed by a DC and/or rectified AC supply. Unlike some other similar four‐switch inverters or converters, which can only work in step down (buck) mode or step up (boost) mode, this inverter can operate in both modes that depend on switching signals and due to adjusting the zero shoot‐through (Zsh‐th) duty cycle. It also decreases the total harmonic distortions (THD) of output voltages and currents. The MQZs inverter reduces the switching losses and the cost of topology in comparison with the conventional six‐switch topologies. The utilized control strategy can work well without any extra filtering circuit in DC side to eliminate the effect of the DC‐bus voltage ripples on the inverter output currents and voltages. The experimental results are found closely analogous and confirm the aforementioned features of the proposed topology compared with other traditional topologies, although the inverter output filter is a conventional LC filter.

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Single-Phase to Three-Phase Converters With Two Parallel Single-Phase Rectifiers and Reduced Switch Count

Cited by 26 publications

References 42 publications

Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage

Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage

A Novel Driving Method for Switched Reluctance Motor With Standard Full Bridge Inverter

Design and implementation of a new four‐switch modified quasi Z‐source inverter with improved space vector control method

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