Parallel of Two Unidirectional AC–DC–AC Three-Leg Converters to Improve Power Quality

Rocha, Nady; Costa, André Elias Lucena da; Jacobina, Cursino B.

doi:10.1109/tpel.2017.2771464

Cited by 14 publications

(3 citation statements)

References 57 publications

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“…T s (7) In C-FCS-MPC, the optimal vectors v n are adopted at the kth time, so at the (k+1)th time, the actual value of the grid current i α,β (k+1) can be obtained, which is most close to the reference value i* α,β (k+1). Replacing i α,β (k+1) with i* α,β (k+1) in Equation (7), the reference voltage vector at the kth time, v* α,β (k) can be deduced as:…”

Section: The Analysis Of S-fcs-mpcmentioning

confidence: 99%

“…Pulse width modulated (PWM) rectifiers have advantages over diode bridge rectifiers, because they feature lower input current harmonic distortion and offer a controllable power factor [1][2][3][4]. Compared to traditional unidirectional PWM rectifiers [5][6][7], VIENNA rectifier has many advantages, such as no dead zone for switching signal, low semiconductor device voltage stress and a simple power stage structure and control strategy [8][9][10][11]. This topology has been widely used in all-electric aircraft and wind turbine system as well as the battery charger and power factor correction system, where high-power density and low device voltage stresses are required [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Simplified model predictive current control based on fast vector selection method in a VIENNA rectifier

Song

Yang

Zhu

et al. 2022

IET Power Electronics

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This paper presents a simplified finite‐control‐set model predictive control (S‐FCS‐MPC) based on fast vector selection method in a three‐level VIENNA rectifier. This method features a high‐power factor, a low input current THD as a well‐controlled DC‐link voltage with fewer redundant vectors and lower computational load. Moreover, the converter with the proposed control technique exhibits a faster dynamic response in terms of input current and DC‐link voltage compared with conventional finite‐control‐set model predictive control (C‐FCS‐MPC). In addition, the average switching frequency can be effectively reduced due to fewer switching times in a subset sector using the proposed method, which means fewer switching losses. Finally, the operation principle of the proposed algorithm has been analysed and an execution time comparison between S‐FCS‐MPC and C‐FCS‐M has been undertaken. The effectiveness of the proposed control technique has been validated using both simulation and experimental results.

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Section: The Analysis Of S-fcs-mpcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simplified model predictive current control based on fast vector selection method in a VIENNA rectifier

Song

Yang

Zhu

et al. 2022

IET Power Electronics

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“…Practical power converters usually include several arms with the same structure, such as AC -DC-AC converter, which includes rectifier, DC-link and inverter. The rectifier and inverter consist of several identical arms, the DC-link is made up of several support capacitances [25][26][27]. The rectifier is connected to the power grid, which translates AC into DC.…”

Section: Open-circuit Fault Analysis and Single Arm Modelmentioning

confidence: 99%

Open-Circuit Fault Analysis and Modeling for Power Converter Based on Single Arm Model

et al. 2019

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This paper proposes a new modeling method for power converter based on single arm model. The objective of this paper is twofold: (1) One is to present the single arm model with good portability. The single arm model can be used to build the models of power converters which have several arms with the same structure; (2) the other is that the converter model built by the single arm model can represent the power converter when open-circuit faults happened in power devices and clamping diodes. First of all, the inputs and outputs of single arm are redefined. Then, the open-circuit faults occurring in different power devices and clamping diodes are analyzed. Furthermore the single arm model is built. Finally, the model of power converter is established based on the single arm model, which can express the power converter with open-circuit fault. The effectiveness and accuracy of the proposed model have been verified by simulation and experiment results.

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Modified passivity-based control method for three-phase cascaded unidirectional multilevel converters

Kong

2023

J. Power Electron.

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Parallel of Two Unidirectional AC–DC–AC Three-Leg Converters to Improve Power Quality

Cited by 14 publications

References 57 publications

Simplified model predictive current control based on fast vector selection method in a VIENNA rectifier

Simplified model predictive current control based on fast vector selection method in a VIENNA rectifier

Open-Circuit Fault Analysis and Modeling for Power Converter Based on Single Arm Model

Modified passivity-based control method for three-phase cascaded unidirectional multilevel converters

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