Symmetrical Shoot-Through Based Decoupled Control of Z-Source Inverter

Kadwane, Sumant G.; Shinde, Umesh; Gawande, S. P.; Keshri, Ritesh Kumar

doi:10.1109/access.2017.2715065

Cited by 14 publications

(9 citation statements)

References 19 publications

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“…The PI controller produces the shoot-through signal, which is used for boosting the input voltage to higher values. The modulation signal and the shoot-through signal are logically combined by the digital controller using an SST-based PWM technique [22] and are given to the main switching controller. This modulation method achieves a sinusoidal and symmetrical distribution of shoot-through states and ensures an improved current profile, along with the capability of decoupled control for the shoot-through and the modulation index control.…”

Section: Control Strategymentioning

confidence: 99%

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Grid-connected quasi-z-source inverter with battery

Shinde¹,

Kottagattu²,

Kadwane³

et al. 2018

Turk J Elec Eng & Comp Sci

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Grid-connected inverters are now increasingly used in distributed microgrid and smart-grid applications.The advantages of a quasi-Z-source inverter (QZSI), like single-stage operation, lower component rating, continuous input current, and common DC rail, led to an investigation of this converter for grid-connected applications. This paper presents a grid-connected QZSI with both AC and DC side controls. A new battery-charging configuration is also suggested across the capacitor through which the DC side control loop is regulated. Fast dynamic response and reduced harmonics are demonstrated through simulation and experimental results.

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Section: Control Strategymentioning

confidence: 99%

“…The superiority of SMC over a classical PI controller has been demonstrated for rapid changes in reference capacitor voltage. A new symmetrical shootthrough (SST)-based PWM technique for decoupled control of impedance source inverter was presented in [22].…”

Section: Introductionmentioning

confidence: 99%

Grid-connected quasi-z-source inverter with battery

Shinde¹,

Kottagattu²,

Kadwane³

et al. 2018

Turk J Elec Eng & Comp Sci

View full text Add to dashboard Cite

show abstract

“…To solve these problems associated with VSIs and CSIs, impedance source inverters [3][4][5][6][7][8][9][10] have been proposed. The classical Z-source inverter (ZSI) uses two inductors and two capacitors in the impedance source network to step-up/down the input voltage.…”

Section: Introductionmentioning

confidence: 99%

“…The voltage gain in the ZS/qZSIs can be improved by adding an inductor, capacitor, and diode to the impedance source network, as presented in the continuous/ripple input current switched-inductor (SL) qZSIs [5,6], the enhanced-boost qZSI [7], and the modified switched-capacitor ZSI [8]. However, passive element-based qZSIs [4][5][6][7][8] increase the volume and loss of the power inverter because of the use of a large number of passive components. Coupled-inductor-based qZSIs [9] can reduce the size of the inverter, but the coupled inductor must 2 of 18 be well designed to avoid voltage spikes on the dc-bus.…”

Section: Introductionmentioning

confidence: 99%

Voltage Multiplier Cell-Based Quasi-Switched Boost Inverter with Low Input Current Ripple

Nguyen

Choi

2019

Electronics

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A novel single-phase single-stage voltage multiplier cell-based quasi-switched boost inverter (VMC-qSBI) is proposed in this paper. By adding the voltage multiplier cell to the qSBI, the proposed VMC-qSBI has the following merits; a decreased voltage stress on an additional switch, a high voltage gain, a continuous input current, shoot through immunity, and a high modulation index. A new pulse-width modulation (PWM) control strategy is presented for the proposed inverter to reduce the input current ripple. To improve the voltage gain of the proposed inverter, an extension is addressed by adding the VMCs. The operating principle, steady-state analysis, and impedance parameter design guideline of the proposed inverter are presented. A comparison between the proposed inverter and other impedance source-based high-voltage gain inverters is shown. Simulation and experimental results are provided to confirm the theoretical analysis.

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“…The ZSIs are used to overcoming some of the limitations present in traditional inverters, for example, EMI noise vulnerability [2]. On the other hand, the ZSIs present a high Total Harmonic Distortion (THD) with control strategies based on PWM [3].…”

Section: Introductionmentioning

confidence: 99%

A New Predictive Control Strategy for Multilevel Current-Source Inverter Grid-Connected

et al. 2019

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The DC/AC converters—commonly called inverters—transform the DC into AC and are classified as Voltage-Source Inverters (VSIs) or Current-Source Inverters (CSIs). A variant of the CSIs are the Multilevel Current-Source Inverters (MCSIs). In this paper, a new predictive control strategy for an MCSI with multiple inputs and grid-connected is proposed. The control technique uses the advantages of the Sliding Mode Control (SMC) for the balance of current in the input and Predictive Control (PC) to obtain a suitable grid current, since it separates both functions. The calculations are based on conventional Kirchhoff’s Voltage Law (KVL) and knowledge of the mathematical model of the system is not required. Generally, traditional MCSIs use large input inductors (100–1000 mH). In this paper, it is achieved a reduction in size of the input inductors. Simulation results are shown to validate the proposed control.

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Symmetrical Shoot-Through Based Decoupled Control of Z-Source Inverter

Cited by 14 publications

References 19 publications

Grid-connected quasi-z-source inverter with battery

Grid-connected quasi-z-source inverter with battery

Voltage Multiplier Cell-Based Quasi-Switched Boost Inverter with Low Input Current Ripple

A New Predictive Control Strategy for Multilevel Current-Source Inverter Grid-Connected

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