Topological Review of Quasi-Switched Boost Inverters

Barath, JG Nataraj; Soundarrajan, A.; Stepenko, Serhii; Husev, Oleksandr; Vinnikov, Dmitri; Nguyen, Minh-Khai

doi:10.3390/electronics10121485

Cited by 15 publications

(9 citation statements)

References 94 publications

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“…This leads to an increase in the THD value at the AC output voltage [58,59]. These days, single-stage, impedance-source inverter topologies [60][61][62][63][64][65][66][67][68][69][70] have been introduced and developed with buck-boost ability and improve reliability. In a transformerless PV inverter, the common mode voltage will be produced while the inverter is being worked and results in the high-leakage current on the capacitor C PV [71,72].…”

Section: Classification Of Three-phase Two-level Transformerless Topo...mentioning

confidence: 99%

Topology Review of Three-Phase Two-Level Transformerless Photovoltaic Inverters for Common-Mode Voltage Reduction

et al. 2022

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In grid-connected photovoltaic (PV) systems, a transformer is needed to achieve the galvanic isolation and voltage ratio transformations. Nevertheless, these traditional configurations of transformers increase the weight, size, and cost of the inverter while decreasing the efficiency and power density. The transformerless topologies have become a good solution. However, the problem is that commode-mode voltage and leakage current can occur via the stray capacitors between the PV array and the ground of the inverter. Various transformerless inverters have been introduced with different techniques, such as reducing the common-mode voltage or eliminating the leakage current. Furthermore, to introduce the development of transformerless PV inverters, especially in three-phase two-level inverter systems, this paper provides a comprehensive review of various common-mode voltage reduction three-phase two-level inverters.

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Section: Classification Of Three-phase Two-level Transformerless Topo...mentioning

confidence: 99%

Topology Review of Three-Phase Two-Level Transformerless Photovoltaic Inverters for Common-Mode Voltage Reduction

et al. 2022

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“…Based on [32], the SBC method has a maximum shootthrough duty ratio of 1 -M, which means only 8% of the modulation index of 0.92. Meanwhile, the shoot-through design of ZSI in this experiment is 17%.…”

Section: F Testing Of Zsi Efficiencymentioning

confidence: 99%

Design and Implementation of Z-Source Inverter by Simple Boost Control Technique for Laboratory Scale Micro-Hydro Power Plant Application

Ariefianto

Aprilianto

Suryoatmojo

et al. 2021

Jurnal Teknik Elektro

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In a power plant such as micro-hydropower (MHP), an induction generator (IG) is usually employed to produce electrical power. Therefore, an inverter is needed to deliver it with high efficiency. Z-source inverter (ZSI) has been introduced as a topology with many advantages over conventional inverters. This research aims to investigate the performance of ZSI based simple boost control (SBC) in laboratory-scale MHP systems using a rewinding induction generator. This research has been conducted both from simulations and experiments. Based on the result, the waveform characteristic and value of ZSI are close to the desired design. A shoot-through duty ratio of 17% can reach 60 Vrms output voltage, and this condition has a conversion ratio of about 2.05 times. Also, SBC can significantly reduce the Total Harmonic Distortion (THD). ZSI efficiency has a value of 84.78% at 50% of rating load 100 W and an average value of 80%. Compared to the previous study, the proposed design has more economical with the same component for the higher rating power. Moreover, it has a smoother and entire output waveform of the voltage.

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“…Active wave shaping i.e., pulse width modulation is an effective approach to control the power quality [13][14][15]. Therefore, an effective controller, tuned with the PWM technique is required to maintain all the control parameters in the PV system without using external circuitry for controlling power quality indexes, however, the system could be controlled only with complete information about the system [10,16]. The PV module's manufacturer provides the datasheet with some specifications however, it is not complete data to understand the dynamic behavior of the system [17].…”

Section: Introductionmentioning

confidence: 99%

A novel control technique for various modes of grid-connected PV system to improve power quality.

Tiwari

Agarwal

2023

Preprint

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A novel control strategy for a single grid-connected PV system with power backup in different modes of operation, including constant load, changing atmospheric circumstances, and load variable conditions. The proposed controller works with a large nonlinear load under different modes of operation. The controller operates in such a way that, it can achieve different functions such as maintaining power flow between the photovoltaic (PV) module to the grid, maintaining UPF (unity power factor) at the point of common coupling(reactive power compensation), synchronizing a grid with PV (grid current harmonics compensation) and regulates the operation of battery(charging or discharging) for electric vehicle application. Implementing the proposed controller reduces the complexity of the active shunt filter at the point of common coupling (PCC). A maximum Power Point (MPPT) controller, optimized with perturb & observe (P&O)algorithm is used to get optimum power from the PV module. Thesimulation findings validate the operation of the suggested controlstrategy in a grid-connected PV system with a battery backup topology.

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Topological Review of Quasi-Switched Boost Inverters

Cited by 15 publications

References 94 publications

Topology Review of Three-Phase Two-Level Transformerless Photovoltaic Inverters for Common-Mode Voltage Reduction

Topology Review of Three-Phase Two-Level Transformerless Photovoltaic Inverters for Common-Mode Voltage Reduction

Design and Implementation of Z-Source Inverter by Simple Boost Control Technique for Laboratory Scale Micro-Hydro Power Plant Application

A novel control technique for various modes of grid-connected PV system to improve power quality.

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