Analysis of High-Efficiency Three-Phase Two- and Three-Level Unidirectional Hybrid Rectifiers

Soeiro, Thiago Batista; Kolar, Johann W.

doi:10.1109/tie.2012.2205358

Cited by 117 publications

(66 citation statements)

References 19 publications

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“…The switching state of NPC-SAPF only includes three conditions, since only two IGBTs are onstate at the same time, i.e., Tx1 and Tx2 (x = a, b, c) are on-state, Tx2 and Tx3 are on-state or Tx3 and Tx4 are on-state, so the switching functions are defined as follows: According to Kirchhoff's laws, the relationship between voltage and current can be deduced as follows: (1) where u asn , u bsn and u csn are three phase PCC voltages. i ca , i cb and i cc are three phase output currents.…”

Section: Mathematical Modelmentioning

confidence: 99%

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A Lyapunov Stability Theory-Based Control Strategy for Three-Level Shunt Active Power Filter

Cao

et al. 2017

Energies

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Abstract:The three-phase three-wire neutral-point-clamped shunt active power filter (NPC-SAPF), which most adopts classical closed-loop feedback control methods such as proportional-integral (PI), proportional-resonant (PR) and repetitive control, can only output 1st-25th harmonic currents with 10-20 kHz switching frequency. The reason for this is that the controller design must make a compromise between system stability and harmonic current compensation ability under the condition of less than 20 kHz switching frequency. To broaden the bandwidth of the compensation current, a Lyapunov stability theory-based control strategy is presented in this paper for NPC-SAPF. The proposed control law is obtained by constructing the switching function on the basis of the mathematical model and the Lyapunov candidate function, which can avoid introducing closed-loop feedback control and keep the system globally asymptotically stable. By means of the proposed method, the NPC-SAPF has compensation ability for the 1st-50th harmonic currents, the total harmonic distortion (THD) and each harmonic content of grid currents satisfy the requirements of IEEE Standard 519-2014. In order to verify the superiority of the proposed control strategy, stability conditions of the proposed strategy and the representative PR controllers are compared. The simulation results in MATLAB/Simulink (MathWorks, Natick, MA, USA) and the experimental results obtained on a 6.6 kVA NPC-SAPF laboratory prototype validate the proposed control strategy.

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Section: Mathematical Modelmentioning

confidence: 99%

“…causes serious harmonic pollution in power systems [1,2]. The active power filter (APF) is considered an effective solution for harmonic elimination of nonlinear loads [3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

A Lyapunov Stability Theory-Based Control Strategy for Three-Level Shunt Active Power Filter

Cao

et al. 2017

Energies

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“…The Vienna rectifier has advantages with regard to total harmonic distortion (THD) and efficiency [1]- [2]. The Vienna rectifier topologies, which are shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

A Novel Carrier-Based PWM Method for Vienna Rectifier With a Variable Power Factor

Lee

2016

IEEE Trans. Ind. Electron.

118

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The Vienna rectifier, which is a nongenerative-boost type rectifier, is used in many applications such as telecommunication systems and wind turbine systems. The Vienna rectifier has a special operating requirement. Many switching methods considering this requirement were proposed. These methods generally take into account the Vienna rectifier's operation with the unity power factor because the Vienna rectifier aims to provide the power to the load. However, as the applications for the Vienna rectifier are diversified, control requirements have been suggested, including the dc-link voltage balance control and the novel control under severely unbalanced grids. In this paper, we propose a carrier-based pulse-width modulation (CB-PWM) method for Vienna rectifier operation with a variable power factor. The proposed CB-PWM method adds the compensation voltage to the three-phase reference voltages, depending on the power factor, to maintain the sinusoidal input currents of the Vienna rectifier. The performance and effectiveness of the proposed CB-PWM method are verified by simulation and experiment.Index Terms-Vienna rectifier, carrier-based pulse-width modulation (CB-PWM), three-level converter.

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“…In order to increase the ac current quality, three-level PWM rectifiers have become a interesting alternative to three-phase applications [8]- [13]. They feature high performance for PFC operation, high efficiency and high power density.…”

Section: Introductionmentioning

confidence: 99%

A Three-Phase Multilevel Hybrid Switched-Capacitor PWM PFC Rectifier for High-Voltage-Gain Applications

Cortez

Barbi

2016

IEEE Trans. Power Electron.

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In this paper a three-phase multilevel PFC rectifier using the hybrid switched-capacitor concept is proposed. The converter is suitable for high voltage gain applications from conventional three-phase low voltage sources. The three-level voltage operation reduces the weight and bulk of the magnetic devices. The main advantages of the proposed converter are: low number of active switches, high voltage gain, sinusoidal currents, low voltage stress across all components and simple control. Both steady-state and dynamic analysis are investigated. Experimental results for a 7500 W/ 220 V-to-1600 V laboratory prototype with maximum efficiency of 97.78% are presented and discussed.

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Analysis of High-Efficiency Three-Phase Two- and Three-Level Unidirectional Hybrid Rectifiers

Cited by 117 publications

References 19 publications

A Lyapunov Stability Theory-Based Control Strategy for Three-Level Shunt Active Power Filter

A Lyapunov Stability Theory-Based Control Strategy for Three-Level Shunt Active Power Filter

A Novel Carrier-Based PWM Method for Vienna Rectifier With a Variable Power Factor

A Three-Phase Multilevel Hybrid Switched-Capacitor PWM PFC Rectifier for High-Voltage-Gain Applications

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