New cascade diode H-bridge multi-level rectifier

Jiang, Xiangbei

doi:10.1109/drpt.2015.7432639

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…Equation (15) shows that under the condition that N is odd, the I-OCC strategy still satisfies the undistortion condition.…”

Section: B I-occ Strategymentioning

confidence: 99%

“…In [14], a cascaded single-phase bridgeless rectifier (CBR) is proposed, which contains 2 fully controlled switching devices in each module. In [15], a cascaded single-phase diode H-bridge rectifier (CDHR) is proposed, which contains only 1 fully controlled switching devices in each module. In the two unidirectional cascaded rectifiers, the complexity of the control and the cost of the system are both greatly reduced.…”

Section: Introductionmentioning

confidence: 99%

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Voltage Balancing Control of Cascaded Single-Phase VIENNA Converter Based on One Cycle Control With Unbalanced Loads

Wang

Cheng

et al. 2020

IEEE Access

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A research study on a type of cascaded single-phase VIENNA converter (CSVC) is presented in this paper. And a type of DC voltage balancing control strategy for each cascaded module of the CSVC based on improved one-cycle control (I-OCC) is proposed, in which voltage balancing signals are added to the conventional OCC (C-OCC) control loop to cause a difference in the modulation signals of each of the cascaded modules, so that the DC voltages of all modules can be quickly balanced under unbalanced loads. At the same time, the average modulation wave maintains a constant value so that the CSVC achieves a unity power factor operation. The operating principle of the I-OCC strategy is discussed in detail, and the corresponding mathematical relationships are derived. In the proposed strategy, the ability to adjust the DC voltages is also analyzed. Finally, the simulation and experiment results are provided to verify the validity and feasibility of this I-OCC-based voltage balancing control strategy. The control strategy proposed by this paper is also applicable to all other cascaded unidirectional rectifiers.INDEX TERMS Cascaded single-phase VIENNA converter (CSVC), multilevel converter, unbalanced loads, one cycle control (OCC), voltage balancing control.

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“…Equation (15) shows that under the condition that N is odd, the I-OCC strategy still satisfies the undistortion condition.…”

Section: B I-occ Strategymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Voltage Balancing Control of Cascaded Single-Phase VIENNA Converter Based on One Cycle Control With Unbalanced Loads

Wang

Cheng

et al. 2020

IEEE Access

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“…Even though the performances of the unidirectional rectifier are well-proven, the unidirectional rectifier still is facing many challenges and its relative researches and discussions are growing in depth and width. Many efforts have been done to explore the possibilities of cascading unidirectional rectifier modules to achieve the high power high/medium voltage rectification [7], [10]- [12].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Control Scheme for Three-Phase Multilevel Unidirectional Rectifier Under Unbalanced Input Voltages

et al. 2019

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In this paper, a hybrid control scheme for three-phase Y-connected multilevel bridgeless rectifier (TMBR) under unbalanced input voltages is presented, based on the mathematical model of the TMBR topology, with the emphasis on the discussion for power fluctuation suppression, dc-link capacitor voltages balancing and input current zero-crossing distortion elimination. With the hybrid control scheme, the power fluctuation can be suppressed and three-phase input currents can flow with a purely sinusoidal waveform, besides, three-phase dc-link capacitor voltages can be controlled to be equal to each other under unbalanced input voltages. Moreover, the proposed hybrid control scheme is applicable to all other threephase three wire multilevel unidirectional rectifiers under unbalanced input voltages. The validity of the proposed control scheme is demonstrated by the mathematical deduction. The simulations and experimental results verify that, with the proposed control scheme, TMBR can stably operate not only under balanced input voltages but also under unbalanced input voltages. INDEX TERMS Three-phase multilevel bridgeless rectifier, hybrid control scheme, unbalanced input voltages.

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“…With the continuous improvement of power electronic devices in voltage and power levels in recent years, multi-level converters are widely used in the field with high voltage and high power [1,2]. Multilevel is generated in three-phase rectifiers to improve the power quality in high ac-dc converters, and the prevalent method in multi-level rectifiers is the neutral-point-clamped type [3,4].…”

Section: Introductionmentioning

confidence: 99%

Three-Phase Interleaved Parallel Vienna Rectifier Based on Coupling Transformer

Miao¹,

Yang²,

Chen³

et al. 2016

dteees

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This paper presents a three-phase interleaved parallel Vienna rectifier employing a coupling transformer. The application of coupling transformer figures out the current sharing problem between two parallel Vienna converters successfully, meanwhile, the volume of input EMC filters and passive components are reduced for the coupling transformers. The proposed rectifier also presents the inherent benefits: high power factor, higher power density, lower input current ripple and lower output voltage ripple. The operation of the PFC rectifier is described, including the design guidelines for the coupling transformer.

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New cascade diode H-bridge multi-level rectifier

Cited by 4 publications

References 8 publications

Voltage Balancing Control of Cascaded Single-Phase VIENNA Converter Based on One Cycle Control With Unbalanced Loads

Voltage Balancing Control of Cascaded Single-Phase VIENNA Converter Based on One Cycle Control With Unbalanced Loads

Hybrid Control Scheme for Three-Phase Multilevel Unidirectional Rectifier Under Unbalanced Input Voltages

Three-Phase Interleaved Parallel Vienna Rectifier Based on Coupling Transformer

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