Design of Delta-Modulated Generalized Frequency Converter

Agarwal, Anshul; Agarwal, Vineeta

doi:10.1109/tie.2010.2041740

Cited by 26 publications

(14 citation statements)

References 16 publications

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“…During this interval, the grid voltage, V grid passing through L & C acts as input voltage, V CYCLO_OUT to the BDCC in reverse mode. The grid frequency voltage is converted to HFAC voltage in this mode by operating the BDCC in reverse mode [12][13]. In BDCC as shown in Fig.1, when the switches D 1 and D 2 are in ON state, the grid current flows through the path, grid-D 2 -HFT secondary terminals -D 1 -grid.…”

Section: Mode 3: Grid-ev Reverse Mode Operation Of the Proposed Ev Bamentioning

confidence: 99%

PV and Grid interfaced Plug-in EV Battery Charger operating in P-VG, P-V and V-G Modes

Subudhi¹,

Krithiga²

2019

IJRTE

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 Abstract: The proposed system facilitates uninterruptable charging of a photovoltaic (PV) fed plug-in electric vehicle (EV) battery charging system irrespective of solar irradiation conditions by integrating utility grid to the battery charging system. The system employs bidirectional cycloconverter (BDCC) in order to use utility grid as source or sink during different modes of operation which depends on the availability of solar power. During low irradiation condition, the utility grid acts as a backup source in order to facilitate uninterruptable charging of the EV battery. When surplus power is generated from the PV panel, it is fed to the utility grid, which acts as sink in this mode. For uninterruptable EV battery charging, the controller operates the switches and relays in the proposed system corresponding to solar irradiation level. The available literatures define complex control strategies which are solved in this proposed system by adopting a simple dynamic control algorithm. The simulation of the proposed system has been carried out using PSIM simulation software and experimental prototype has been designed, developed and tested for different modes of operations to validate the efficacy of the proposed system.

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Section: Mode 3: Grid-ev Reverse Mode Operation Of the Proposed Ev Bamentioning

confidence: 99%

PV and Grid interfaced Plug-in EV Battery Charger operating in P-VG, P-V and V-G Modes

Subudhi¹,

Krithiga²

2019

IJRTE

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“…Biswas [10], Agarwal [11], Agarwal [12], Idris [13] and Khedekar [14] presented several new design topologies and applications for cycloconverters. They also launched different techniques related to static frequency changes.…”

Section: Introductionmentioning

confidence: 99%

Triac Based Novel Single Phase Step-Down Cycloconverter with Reduced THDs for Variable Speed Applications

et al. 2021

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In variable speed applications, the cycloconverter-based AC to AC power conversion technique has gained more attention among researchers and academics than the traditional rectifier-inverter-based AC to AC power conversion process. The conventional rectifier-inverter-based AC to AC power conversion process has several disadvantages. It uses multi-power stages that increase the converter power conversion losses and increase the cost, volume, and weight of power losses. Besides high conduction and switching losses, the electromagnetic interference problems also accompany the above issues. In this regard, this paper proposes a novel step-down Triac based cycloconverter for variable speed control applications. The proposed topology uses only five Triac devices for one-third and one-fourth frequency conversion of 50 Hz with reduced total harmonics distortion without using any pulse width modulation techniques. The proposed model is designed in the MATLAB/SIMULINK environment. The simulation results show that around 18.85% and 23.67% of total harmonics distortions are reduced in the proposed converter for one-third and one-fourth frequency conversion of 50 Hz, respectively. Two physical experiments are carried out to prove the validity of the simulation results.

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“…2 High-frequency power generation Fig. 1a illustrates a single-phase to single-phase centre-tapped transformer configuration of cycloinverter [17], used to generate the high-frequency AC output. Through proper conduction of IGBTs in two input cycles, a variable frequency output can be acquired.…”

Section: Introductionmentioning

confidence: 99%

A novel approach of space vector modulation for cycloinverter using genetic algorithm

Agarwal

2013

IET Power Electronics

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A novel approach has been made to calculate the switching angles for space vector modulation (SVM) technique, which is applied in a cycloinverter to generate high-frequency power output. The turn-on and turn-off times of SVM pattern are evaluated in such a way that the total harmonic distortion (THD) is minimised and the output voltage of cycloinverter approaches as close as possible to desired sinusoidal waveform. To accomplish this optimisation task, genetic algorithms (GAs) is used and THD is adopted in the proposed objective function. The lowest fitness value of this objective function decides the correct value of the switching angles. The switching strategy for the cycloinverter is presented on MATLABbased time-domain simulations. Simulation results show that the proposed approach with GAs, is superior to the conventional SVM. The output waveforms and their spectrum are presented to show effectiveness of the proposed scheme. Simulated results are also validated with the experimental results.

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Design of Delta-Modulated Generalized Frequency Converter

Cited by 26 publications

References 16 publications

PV and Grid interfaced Plug-in EV Battery Charger operating in P-VG, P-V and V-G Modes

PV and Grid interfaced Plug-in EV Battery Charger operating in P-VG, P-V and V-G Modes

Triac Based Novel Single Phase Step-Down Cycloconverter with Reduced THDs for Variable Speed Applications

A novel approach of space vector modulation for cycloinverter using genetic algorithm

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