A Simple Space Vector Modulation Method With DC-Link Voltage Balancing and Reduced Common-Mode Voltage Strategy for a Three-Level T-Type Quasi-Z Source Inverter

Mayorga, Nicolas; Roncero‐Clemente, Carlos; Llor, Ana M.; Husev, Oleksandr

doi:10.1109/access.2021.3087035

Cited by 19 publications

(15 citation statements)

References 47 publications

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“…The space vector place is defined in two steps [16]− [25]: The first step defines the sector number of where the vector lies. The second step defines the triangle in which the vector lies.…”

Section: Definition Of the Space Vector Placementioning

confidence: 99%

Improved space vector modulation algorithm of 5-level three-phase z-source based cascaded inverter

Abdelkarim¹,

Bekakra²,

Zellouma³

et al. 2022

IJPEDS

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The integration of a Z-source network with a 5-Level three-phase inverter based cascaded to provide voltage step-up function is proposed in this paper. The system is controlling by an improved space vector modulation (SVM) the implantation of algorithm and innovative virtual automated solutions can be considered, very fast and very simple. The main objective of the proposed system is to achieve an output voltage twice the applied input voltage, and to eliminate the largest amount of excess harmonic. This proposed model is characterized by the ease of boosting the output voltage twice the input voltage, depending on the characteristics of the Z-source network without the need for a DC-DC rectifier. Furthermore, the proposed algorithm for this system is characterized by improving the output voltage and eliminating a large number of harmonics while greatly simplifying the calculations compared to its conventional SVM. This makes the proposed system and its algorithm an interesting alternative to classical systems and algorithms. The simulation was processed using MATLAB/Simulink. The results obtained prove and verify the effectiveness of the proposed system. From the results, of the output current total harmonic distortion (THD), it was reduced to 1.05% which is very low compared to the other algorithms in the literature.

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Section: Definition Of the Space Vector Placementioning

confidence: 99%

Improved space vector modulation algorithm of 5-level three-phase z-source based cascaded inverter

Abdelkarim¹,

Bekakra²,

Zellouma³

et al. 2022

IJPEDS

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“…In recent years, researchers have explored various aspects of buck-boost three-level inverters (BBTLIs) related to topologies and PWM control techniques [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18]. Depending on the type of IN, these inverters can be classified into two categories: active IN (AIN) and passive IN (PIN) structures.…”

Section: Introductionmentioning

confidence: 99%

“…For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0/ FIGURE 1. Some passive INs used in single-stage three-level inverters: (a) ZSI [6], [7], (b) qZSI [8], [9], [10], [11], [12], (c) improved qZSI [13], (d) modified ZSI (D1) [14], (e) embedded modified ZSI [15].…”

Section: Introductionmentioning

confidence: 99%

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Active Impedance Network Buck-Boost Three-Level T-Type Inverter With Enhanced Voltage Gain

Singh

Lee

Ho³

2023

IEEE Access

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This paper proposes a new PWM technique for a reduced-component-count active impedance network (RCC-AIN) three-level inverter to maximize the input/output (I/O) voltage gain. Although the max boost control (MBC) technique offers the same I/O voltage gain, it suffers from the drawback of lowfrequency (LF) ripples of the source current. In contrast, the proposed PWM technique is a combination of improved MBC (IMBC) and a new switching state pattern that eliminates this drawback and offers up to 79% reduction in the peak-to-peak ripple value of the source current while maintaining the same I/O voltage gain as MBC. The cumulative sum of ripple components is used to find the exact maximum and minimum peaks of the source current over the fundamental period. The proposed switching pattern doubles the switching frequency of a boosting switch to limit the current spikes of capacitors during state changeover. The RCC-AIN topology was analyzed in various voltage-boosting techniques, and the proposed PWM technique utilizes the full potential of the RCC-AIN topology in a better way. The findings have been verified using theoretical calculations, simulation, and experimental results.

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“…References [17,18] discusses the problem of LMZVM modulation strategy in quasi-Z-source T-type inverters and realizes the voltage boost by inserting the shoot-through state into the zero vector, and considers various operating conditions to simulate the operation of the renewable energy system.…”

Section: Introductionmentioning

confidence: 99%

Common-Mode Voltage Reduction and Neutral Point Voltage Balance Modulation Technology of Quasi-Z-Source T-Type Three-Level Inverter

Xie

Yao

2022

Electronics

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The quasi-Z-source T-type inverter is a new type of three-level inverter. Compared with other three-level inverters, the quasi-z-source T-type inverter is characterized by its fault tolerance capability and boost capability. In the inverter, the modulation strategy greatly affects the performance. Aiming at the problems in three-level inverters such as excessive common-mode voltage and unbalanced neutral point potential, a space vector pulse width modulation (SVPWM) for a quasi-z-source T-type three-level inverter based via line voltage coordinate is proposed in this paper. The main research work and achievements of this paper include: (1) based on the existing research results, an SVPWM modulation strategy for the quasi-Z-source T-type inverter is proposed. The modulation method proposed by this paper can effectively reduce the common-mode voltage and balance the neutral point voltage. (2) This paper analyzes the principle of the line voltage coordinate system and makes some modifications to the line voltage coordinate system so that the proposed modulation scheme can be applied to the line voltage coordinate system. Compared with the traditional αβ coordinate system, the SVPWM algorithm in the line voltage coordinate system has the characteristic of simple calculation. The simulation and experiment results show that the control method has good performance under the conditions of dynamic response and imbalance.

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A Simple Space Vector Modulation Method With DC-Link Voltage Balancing and Reduced Common-Mode Voltage Strategy for a Three-Level T-Type Quasi-Z Source Inverter

Cited by 19 publications

References 47 publications

Improved space vector modulation algorithm of 5-level three-phase z-source based cascaded inverter

Improved space vector modulation algorithm of 5-level three-phase z-source based cascaded inverter

Active Impedance Network Buck-Boost Three-Level T-Type Inverter With Enhanced Voltage Gain

Common-Mode Voltage Reduction and Neutral Point Voltage Balance Modulation Technology of Quasi-Z-Source T-Type Three-Level Inverter

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