M. L. Bharathi ¹, D. Kirubakaran ²

Affiliations
1 Sathyabama University, Chennai, IN
2 Department of Electrical and Electronics Engineering, St. Joseph’s Institute of Science and Technology, Chennai, IN

Abstract

Solar energy is an important source of renewable energy. But, it is unpleasant that, only partial amount of energy can be extracted from the Solar cells by our conventional DC-DC Boost converters. A comparative study on solar powered Interleaving Boost converters (ILBCs) is initiated. A novel Solar powered, Series-Inductor ILBC with less current ripple than the conventional ILBC is proposed. A comparative study on single- stage, two-stage and three-stage ILBCs are done. The comparison of ripple reduction of output voltage is tried with 'C', 'Pi' and Cascade Filters. The results have been applied to R-Load and motor load. The input of 150V is fed to the ILBC from the solar cell and compared for the ripple. The proposed solar powered series inductor ILBC has reduced ripple than the conventional ILBCs. Comparison table of performance and simulation results of these aforementioned solar powered ILBCs have been exhibited in this paper.

Keywords

Boost Converter, Comparison Study, Interleaving, Solar Power.

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M. L. Bharathi ¹, D. Kirubakaran ²

Affiliations
1 Faculty of Electrical and Electronics Engineering, Sathyabama University, Chennai, IN
2 Department of Electrical and Electronics Engineering, St. Joseph's Institute of Science and Technology, Chennai, IN

Abstract

Solar energy is an important source of renewable energy. But, it is unpleasant that, only partial amount of energy can be extracted from the Solar cells by our conventional DC-DC Boost converters. A comparative study on solar powered Interleaving Boost converters (ILBCs) is initiated. A novel Solar powered, Series-Inductor ILBC with less current ripple than the conventional ILBC is proposed. A comparative study on single- stage, two-stage and three-stage ILBCs are done. The comparison of ripple reduction of output voltage is tried with 'C', 'Pi' and Cascade Filters. The results have been applied to R-Load and motor load. The input of 150V is fed to the ILBC from the solar cell and compared for the ripple. The proposed solar powered series inductor ILBC has reduced ripple than the conventional ILBCs. Comparison table of performance and simulation results of these aforementioned solar powered ILBCs have been exhibited in this paper.

Keywords

Boost Converter, Comparison Study, Interleaving, Solar Power.

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S. Kamalakkannan ¹, D. Kirubakaran ²

Affiliations
1 Sathyabama University, Chennai - 600119, Tamil Nadu, IN
2 St. Joseph’s Institute of Technology, Chennai - 600119, Tamil Nadu, IN

Abstract

Objectives: A constant voltage maximum power point tracking algorithm based PV powered z-source inverter was examined for varying irradiation and temperature to maximize power output. Method: Maximum power point tracking algorithm applied to photo voltaic system keep the boost converter output constant. The constant output from boost converter is taken to three phase z-source inverter with load arrangements. Three phase z-source inverter is operated in closed loop control for voltage and frequency synchronization. Eventually three phase z-source inverter output with LC filters will produce sinusoidal output fed to the three phase asynchronous machine. Findings: Simulations are provided to validate the presentation of the proposed algorithm. Perturb and Observation Algorithm (P&O) used for maximum power point tracking may accomplish fast maximum power point for rapid change of environmental conditions such as irradiance and temperature. The usual means to work with lesser MPP voltages is to have a supplementary DC-DC boost converter with conventional inverters like current source inverter or voltage source inverter (CSI or VSI). However, proposed z-source inverter can either buck or boost AC output voltage without any supplementary DC-DC boost converter which is not possible in the conventional CSI or VSI. Moreover, the z-network of three phase z-source inverter comprising of pair of capacitors and inductors forms a second order filter and filters unwanted voltage sags of the DC voltage source thereby improving the quality of power and total harmonic distortion. Consequently enhanced power quality without sag and lesser total harmonic distortion is given to three phase asynchronous machine. Thus a MPPT based PV powered z-source inverter is effective in comparison with conventional inverters. Applications: Proposed system finds its applications in renewable energy sources like solar, wind and combined solar- wind systems, electric vehicles and AC motor drives.

Keywords

Asynchronous Machine, Maximum Power Point Tracking (MPPT), PV Power, Perturb and Observation Algorithm, Z-Source Inverter.

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P. Shunmugakani ¹, D. Kirubakaran ²

Affiliations
1 Faculty of Electrical Engineering, Sathyabama University, Chennai - 600119, Tamil Nadu, IN
2 St. Joseph’s Institute of Technology, Chennai - 600119, Tamil Nadu, IN

Abstract

Objectives: To improve response of QZSIIMD system. This work aims to reduce settling time and steady state error. Method used: The computations the simulation is done using state space method Findings: The present work has proposed QZSI for the control of induction motor. The speed response of QZSIIMD system is studied with a positive step change in input.Settling in found to be reduced by 71 % and steady state error is reduced by 80% by using PIDC. Applications: The proposed QZSIIMD and system is suitable for textile and paper mills.

Keywords

FL Control, Induction Motor, QZS Inverter

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