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Author

M. Praveenkumar

Bio: M. Praveenkumar is an academic researcher from VIT University. The author has contributed to research in topics: Inverter & Fuzzy logic. The author has an hindex of 1, co-authored 4 publications receiving 5 citations.

Papers
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Proceedings ArticleDOI
01 Nov 2016
TL;DR: In this paper, a model predictive controller (MPC) is considered to be in command of the RMS voltage of the Flying Capacitor Multicell Inverter and the outputs are measured up to with fuzzy controlled FCMI.
Abstract: The Flying Capacitor Multicell Inverter (FCMI) possesses an inherent balancing of voltage across the capacitors and it is used to distribute the input voltage and minimize the voltage stress. This FCMI's RMS is first controlled with fuzzy controller and the outputs are analyzed, then a suitable Model Predictive Controller (MPC) is considered to be in command of the RMS voltage of the Flying Capacitor Multicell Inverter and the outputs are measured up to with fuzzy controlled FCMI. The controller (Fuzzy and MPC) are considered for different levels of FCMI circuits and has been found that MPC controller gives better performance as compared to the fuzzy controlled FCMI. To weigh against the performance of Fuzzy and MPC controllers the Rise time, Settling time, Overshoot, Peak and Peak time are taken as comparison parameters and the comparison chart is presented for analysis.

5 citations

Book ChapterDOI
01 Jan 2017
TL;DR: This paper evolved a new technique, soft switching for unique power converter called stacked multicell converter (SMC), and presents the analysis and simulation results for fuzzy logic controlled multilevel inverter of circuit topologies for open and closed loop operations.
Abstract: In latest years, commercial companies rely upon using static power converters for developing large voltage and large current applications. For these kind applications preferably we choose multilevel inverters. The multilevel inverters are used to convert DC input power to AC output power with more number of voltage levels and with less Total Harmonic Distortion (THD). In this paper, we evolved a new technique, soft switching for unique power converter called stacked multicell converter (SMC). The fuzzy logic controller used to controls the multi levels of operation for Stacked Multicell Converter. As compared to the conventional converter, This SMC topology provides more input voltage levels, reduces the converter energy storage, and also reduces the voltage and current burden on semiconductor switching devices. This paper presents the analysis and simulation results for fuzzy logic controlled multilevel inverter of circuit topologies for open and closed loop operations.

2 citations

Book ChapterDOI
01 Jan 2016
TL;DR: This paper implements the multilevel inverter with reversing voltage (which was previously proposed), first simulated using MATLAB simulation in open loop, and then PWM technique is introduced to have a control over the output RMS voltage; for these topologies the THD is analyzed.
Abstract: Multilevel inverter of reversing voltage topology has emerged recently as a very important technology in the area of medium-voltage high power energy control, due to lower EMI, requirement of less number of semiconductor power devices with less blocking voltage, lower THD percentage in output voltage, and less stress on insulation. This topology overcomes the disadvantages that a normal multilevel inverter has, like increased number of components, complex power bus structure in some topologies, and voltage balancing problem at neutral point. In this paper, the multilevel inverter with reversing voltage is implemented (which was previously proposed). This topology of inverter is first simulated using MATLAB simulation in open loop, and then PWM technique is introduced to have a control over the output RMS voltage; for these topologies the THD is analyzed. Then closed-loop control is implemented using fuzzy logic. The open-loop configuration of the circuit is realized in hardware and the results are analyzed.

1 citations

Book ChapterDOI
P. Ponnambalam1, M. Praveenkumar1, G. Gokulakrishnan1, K. Muralikumar1, M. Priya1 
01 Jan 2021
TL;DR: In this paper, a brief analysis of seven-level and nine-level symmetrical cascaded multicell inverter is presented with THD analysis, which is designed to regulate the RMS output voltage of the circuit.
Abstract: The main advantage of symmetrical cascaded multicell inverter is that it uses less number of switching devices as compared to stacked multicell converter. In this chapter, a brief analysis of seven-level and nine-level symmetrical cascaded multicell inverter is presented with THD analysis. Closed-loop operation of the symmetrical cascaded multicell inverter is designed to regulate the RMS output voltage of the circuit. Two different control techniques were implemented, namely fuzzy logic controller and model predictive controller (MPC), the control performance of these two controllers was compared, and the detailed analysis is presented.

Cited by
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Journal ArticleDOI
TL;DR: This paper proposes a photovoltaic aided multilevel inverter with Reverse Voltage topology with diminished number of switches, which in turns diminishes the complexity of the system as well as cost.
Abstract: Multilevel Inverters are generally utilized for medium voltage and high power applications. Invented in 1975, MLIs have brought huge change in the field of Electrical and Electronics. It contains distinctive topologies. This paper proposes a photovoltaic aided multilevel inverter with Reverse Voltage topology with diminished number of switches. In comparison to other existing topologies this topology utilizes minimum number of switches and less number of carrier signals which in turns diminishes the complexity of the system as well as cost. The proposed framework contains five MOSFETs, five diodes to create eleven levels. In this topology the SPWM strategy has been utilized. This topology utilizes one sine wave and five triangular waves, which is half in comparison to the existing topologies. As sustainable power sources can be utilized for multilevel inverter, photovoltaic cell has been utilized. The MATLAB recreation for both solar powered module and Multilevel inverter has been appeared alongside the equipment approach.

9 citations

Journal ArticleDOI
TL;DR: In this paper , an enhanced control strategy for renewable energy resources connected to the grid through voltage-sourced converters (VSCs) in microgrids is presented. But, the proposed scheme contains a voltage control loop with the minimum inverter switching, a power-sharing controller with minimum inverters, a negative-sequence current controller, and a loop to identify the control system operation mode.
Abstract: This article presents an enhanced control strategy for renewable energy resources connected to the grid through voltage-sourced converters (VSCs) in microgrids. The proposed scheme contains a voltage control loop with the minimum inverter switching, a power-sharing controller with the minimum inverter switching, a negative-sequence current controller, and a loop to identify the control system operation mode. All the controllers are designed using the multipurpose finite control set-model predictive control (FCS-MPC) strategy. Since these controllers use the dynamic current and VSC voltage, they can be applied in grid-connected and island operation modes and transferred between them. The method uses voltage–frequency control instead of power control for VSCs. One inverter controls voltage, and the other controls current. The conventional FCS-MPC is enhanced to reduce the computation power by eightfold. This improvement is significant because the maximum switching frequency is limited in practical implementations. Also, the superiority of the proposed multipurpose control scheme is proved theoretically. Simulation is implemented using MATLAB software and compared with methods in the literature. The simulation demonstrates that the presented control strategy is efficient, authentic, and compatible. The proposed method is also tested and validated in hardware experiments.

7 citations

Proceedings ArticleDOI
01 Oct 2018
TL;DR: Some of the most challenges and trends through an overview on papers that were published recently inredictive control are introduced.
Abstract: Predictive control is a new control strategy that has been applied to control power electronics applications, in the last decades. Many researches are working on the improvement of this control method such as reduction of computations cost, increasing accuracy, etc. This paper introduces some of the most challenges and trends through an overview on papers that were published recently.

3 citations

Journal ArticleDOI
TL;DR: In this article , an enhanced control strategy for renewable energy resources connected to the grid through voltage-sourced converters (VSCs) in microgrids is presented. And the proposed scheme contains a voltage control loop with the minimum inverter switching, a power-sharing controller with minimum inverters, a negative-sequence current controller, and a loop to identify the control system operation mode.
Abstract: This article presents an enhanced control strategy for renewable energy resources connected to the grid through voltage-sourced converters (VSCs) in microgrids. The proposed scheme contains a voltage control loop with the minimum inverter switching, a power-sharing controller with the minimum inverter switching, a negative-sequence current controller, and a loop to identify the control system operation mode. All the controllers are designed using the multipurpose finite control set-model predictive control (FCS-MPC) strategy. Since these controllers use the dynamic current and VSC voltage, they can be applied in grid-connected and island operation modes and transferred between them. The method uses voltage–frequency control instead of power control for VSCs. One inverter controls voltage, and the other controls current. The conventional FCS-MPC is enhanced to reduce the computation power by eightfold. This improvement is significant because the maximum switching frequency is limited in practical implementations. Also, the superiority of the proposed multipurpose control scheme is proved theoretically. Simulation is implemented using MATLAB software and compared with methods in the literature. The simulation demonstrates that the presented control strategy is efficient, authentic, and compatible. The proposed method is also tested and validated in hardware experiments.

3 citations