Space Vector Modulation Strategy for Three-Level Quasi-Switched Boost T-Type Inverter

Do, Duc-Tri; Nguyen, Minh-Khai; Quach, Thanh-Hai; Tran, Vinh-Thanh; Le, Cong-Bang; Lee, Kyoung-Won; Cho, Geum-Bae

doi:10.1109/spec.2018.8636025

Cited by 9 publications

(11 citation statements)

References 11 publications

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“…Three PWM techniques are considered to use in the simulation and the experiment to validate the performance of this research: method 1-traditional phase disposition (PD) sinusoidal PWM scheme, method 2-traditional phase shift (PS) sinusoidal PWM scheme discussed in [30,31], method 3proposed scheme. The results of method 1 are achieved by applying the ST insertion method, which is used in UST and LST insertion explored in [29,30], to conventional PD sinusoidal PWM strategy.…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

“…In [27], a pulse-width modulation (PWM) strategy is proposed to improve the inductor current ripple and voltage gain of the converter based on the quasi-switched boost T-type inverter (qSBT 2 I) topology. Applying the scheme proposed in [27], a PWM strategy is proposed in [28] to enhance the stabilization of the system by solving the open-circuit faults of switching devices in the inverter leg as well as the intermediate network.Due to the superior quality and amplitude of output voltage, the space-vector modulation (SVM) is applied to qSBT 2 I as presented in [29,30]. Because of not containing the zero vector in some of the region of the space vector diagram, these schemes use upper ST (UST) and lower ST (LST) modes,…”

mentioning

confidence: 99%

“…Due to the superior quality and amplitude of output voltage, the space-vector modulation (SVM) is applied to qSBT 2 I as presented in [29,30]. Because of not containing the zero vector in some of the region of the space vector diagram, these schemes use upper ST (UST) and lower ST (LST) modes,…”

mentioning

confidence: 99%

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Common Mode Voltage Elimination for Quasi-Switch Boost T-Type Inverter Based on SVM Technique

Nguyen

Ngo

et al. 2020

Electronics

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In this paper, the effect of common-mode voltage generated in the three-level quasi-switched boost T-type inverter is minimized by applying the proposed space-vector modulation technique, which uses only medium vectors and zero vector to synthesize the reference vector. The switching sequence is selected smoothly for inserting the shoot-through state for the inverter branch. The shoot-through vector is added within the zero vector in order to not affect the active vectors as well as the output voltage. In addition, the shoot-through control signal of active switches of the impedance network is generated to ensure that its phase is shifted 90 degrees compared to shoot through the signal of the inverter leg, which provides an improvement in reducing the inductor current ripple and enhancing the voltage gain. The effectiveness of the proposed method is verified through simulation and experimental results. In addition, the superiority of the proposed scheme is demonstrated by comparing it to the conventional pulse-width modulation technique.

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Section: Simulation and Experimental Resultsmentioning

confidence: 99%

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confidence: 99%

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Common Mode Voltage Elimination for Quasi-Switch Boost T-Type Inverter Based on SVM Technique

Nguyen

Ngo

et al. 2020

Electronics

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“…The SVPWM is basically divided into two classifications: the nearest three vectors (NTV) method and the Hexagons method. The SVPWM includes the reference voltage space vector synthesis for the NTV approach, by switching between the nearest three voltage space vectors [23][24][25][26]. The output voltage vector is synthesized for the hexagon's approach using a method similar to the traditional two-level converter.…”

Section: Introductionmentioning

confidence: 99%

PWM control techniques for three phase three level inverter drives

Kadum

2020

TELKOMNIKA

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In this paper two very efficient pulse width modulation techniques were discussed named Sin pulse width modulation and space vector pulse width modulation. The basic structure of the three-level inverter neutral-point clamped is introduced and the basic idea about space vector pulse width modulation for three-level voltage source inverter has been discussed in detail. Nearest three vectors space vector pulse width modulation control algorithm is adopted as the control strategy for the three phase three level NPC inverter in order to compensate the neutral-point shifting. Mathematical formulation for calculating switching sequence has determined. Comparative analysis proving superiority of the space vector pulse width modulation technique over the conventional pulse width modulation, and the results of the simulations of inverter confirm the feasibility and advantage of the space vector pulse width modulation strategy over sin pulse width modulation in terms of good utilization of dc-bus voltage, low current ripple and reduced switching frequency. Space vector pulse width modulation provides advantages better fundamental output voltage and useful in improving harmonic performance and reducing total harmonic distortion.

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“…The authors of [27] presented a pulse width modulation (PWM) scheme based on phase shift carrier method to reduce the inductor current ripple and enhance the boost factor of the converter. In [28][29][30][31][32], a combination of the 3L-T 2 I with the qSB network was discussed. In these studies, two identical qSB networks were connected in cascade form with one inductor less to create a three-level voltage at output load voltage.…”

Section: Introductionmentioning

confidence: 99%

A Three-Level DC-Link Quasi-Switch Boost T-Type Inverter with Voltage Stress Reduction

Tran

et al. 2020

Energies

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In recent years, the three-level T-Type inverter has been considered the best choice for many low and medium power applications. Nevertheless, this topology is known as a buck converter. Therefore, in this paper, a new topology incorporating the dc-link type quasi-switched boost network with the traditional three-level T-type inverter is proposed to overcome the limit of traditional three-level T-Type inverter. The space vector pulse width modulation scheme is considered to control this topology, which provides some benefits such as enhancing modulation index and reducing the magnitude of common-mode voltage. For this scheme, the zero, medium, and large vectors are utilized to generate the output voltage. The shoot-through state which is adopted by turning on all power switches of inverter leg is inserted into zero vector to boost the dc-link voltage. As a result, there is no distortion at the output waveform. The control signal of intermediate network power switches is also detailed to improve the boost factor and voltage gain. As a result, the voltage stress on power devices like capacitors, diodes, and switches is decreased significantly. To demonstrate the outstanding of proposed structure and its control strategy, some comparisons between the proposed method and other ones are performed. Simulation and experimental prototype results are conducted to verify the accuracy of the theory and effectiveness of the inverter.

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Space Vector Modulation Strategy for Three-Level Quasi-Switched Boost T-Type Inverter

Cited by 9 publications

References 11 publications

Common Mode Voltage Elimination for Quasi-Switch Boost T-Type Inverter Based on SVM Technique

Common Mode Voltage Elimination for Quasi-Switch Boost T-Type Inverter Based on SVM Technique

PWM control techniques for three phase three level inverter drives

A Three-Level DC-Link Quasi-Switch Boost T-Type Inverter with Voltage Stress Reduction

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