Opposite Vector Based Phase Shift Carrier Space Vector Pulse Width Modulation for Extending the Voltage Balance Region in Single-Phase 3LNPC Cascaded Rectifier

Xu, Peng; He, Xiaoqiong; Han, Pengcheng; Lin, Hongjian; Gao, Shibin; Shu, Zeliang

doi:10.1109/tpel.2016.2611607

Cited by 31 publications

(12 citation statements)

References 39 publications

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“…The DC-side voltage control is integrated into the modulation strategy in this strategy, which can achieve a more rapid, wide range of fault tolerance effects. The strategy proposed in [12] indicates that the opposite vectors could be a fantastic way to ensure the stability of the DC-side voltage, which has been demonstrated by a large number of simulations and experiments in this paper. This method can greatly widen the stable range of the fault tolerance strategy.…”

Section: Introductionmentioning

confidence: 65%

“…Moreover, the total output voltage U ab of the 3LNPC-CC remains normally, although the output voltage of each module is rearranged by the proposed strategy. [12][13][14] and [20]. Figure 14 shows the DC-side voltages and AC-side current using the proposed strategy of three-module 3LNPC-CC.…”

Section: Methodsmentioning

confidence: 99%

“…However, it is complicated to calculate the switching state. Generally speaking, the [12][13][14] could balance the DC-link voltage under modulation index among 0.8. However, [12] balances the voltage with the price of switch state jump, [14] works with drastic fluctuation, the calculation of [13] was too complex to become engineered.…”

Section: Introductionmentioning

confidence: 99%

“…Generally speaking, the [12][13][14] could balance the DC-link voltage under modulation index among 0.8. However, [12] balances the voltage with the price of switch state jump, [14] works with drastic fluctuation, the calculation of [13] was too complex to become engineered. A fault reconfiguration strategy with strong control ability and good performance need to be studied [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Voltage-Balancing Strategy for Three-Level Neutral-Point-Clamped Cascade Converter under Sequence Smooth Modulation

Zhou

et al. 2020

Energies

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Three-level neutral-point clamped cascaded converters (3LNPC-CC) are widely used in high power nigh-voltage applications. This paper mainly discusses the open-circuit fault in DC-side of the 3LNPC-CC. Optimized by the sequence pulse modulation, a sequence smooth modulation (SSM) is proposed to keep the DC-side voltage balance while the 3LNPC-CC suffers open-circuit fault from DC-side. The SSM found efficient switch-state path through a 3-D cube model and simplified the path from thousands of switch state. The SSM avoids the complex calculation in the voltage-balancing modulation, while the dynamic character of it was less influenced. At the same time, the modulation changes the voltage level smoothly and balances the fault DC-side voltage effectively. The characters of the proposed modulation are verified by the simulation and the experiment.

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Section: Introductionmentioning

confidence: 65%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Voltage-Balancing Strategy for Three-Level Neutral-Point-Clamped Cascade Converter under Sequence Smooth Modulation

Zhou

et al. 2020

Energies

Self Cite

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“…References [9][10][11][12] propose an auxiliary voltage-balancing circuit to solve the unbalanced problem of capacitor voltage inner the module. However, using extra inductor or capacitor may lead to high cost and low efficiency, although it has a great influence on voltage-balancing within the module.…”

Section: Introductionmentioning

confidence: 99%

Voltage-Balancing Strategy for Three-Level Neutral Point Clamped Cascade Converter under Sequence Pulse Modulation

Yu¹,

Xu²,

Zhou³

et al. 2019

Energies

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In response to the unbalanced DC-port fault of three-level neutral point clamped cascaded converter (3LNPC-CC), a sequence pulse modulation (SPM) voltage-balancing strategy is proposed in this paper to balance DC-link voltage, not only within the module but also among modules. With the steps of carrier cascaded calculation and sequence pulse generator, the voltage level of cascaded modules would take a smooth transition. Then the limitation of the SPM strategy is calculated according to the law of volt-second balance and the law of energy conservation. The proposed strategy has the advantage of simple calculation and control stability. Simulation and experimental results show the superiority of the proposed strategy.

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Design of SVPWM-Based Two-Leg VSI for Solar PV Grid-Connected Systems

Basha

Chowdary

Rani

et al. 2019

Advances in Intelligent Systems and Computing

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Opposite Vector Based Phase Shift Carrier Space Vector Pulse Width Modulation for Extending the Voltage Balance Region in Single-Phase 3LNPC Cascaded Rectifier

Cited by 31 publications

References 39 publications

Voltage-Balancing Strategy for Three-Level Neutral-Point-Clamped Cascade Converter under Sequence Smooth Modulation

Voltage-Balancing Strategy for Three-Level Neutral-Point-Clamped Cascade Converter under Sequence Smooth Modulation

Voltage-Balancing Strategy for Three-Level Neutral Point Clamped Cascade Converter under Sequence Pulse Modulation

Design of SVPWM-Based Two-Leg VSI for Solar PV Grid-Connected Systems

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