2014 International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE), 2014
Solar energy forms the major alternative for the generation of power keeping in mind the sustaina... more Solar energy forms the major alternative for the generation of power keeping in mind the sustainable development with reduced greenhouse emission. For improved efficiency of the MPPT which uses solar energy in photovoltaic systems(PV), this paper presents a technique utilizing improved incremental conductance(IncCond) MPPT with direct control method using SEPIC converter. Several improvements in the existing technique is proposed which includes converter design aspects, system simulation & DSP programming. For the control part dsPIC30F2010 is programmed accordingly to get the maximum power point for different illuminations.DSP controller also forms the interfacing of PV array with the load. Now the improved IncCond helps to get point to point values accurately to track MPP's under different atmospheric conditions.MATLAB and Simulink were employed for simulation studies validation of the proposed technique. Experiment result proves the improvement from existing method.
There is so many applications in which the cells must be used in series to form a battery pack. W... more There is so many applications in which the cells must be used in series to form a battery pack. When a group of cells are arranged to form a battery pack the voltage across individual cells must be equal at all times. Otherwise the battery life gets reduced as the change in voltage level in any one cell will adversely affects other cells. This paper aims to introduce a new technology of equalizing the voltage across individual cells in a battery pack at every instant. The basic element in this technology is the CUK-converter, which is a DC-DC converter.CUK is a switched mode control and this switching is established with the help of microcontroller which manipulates the signals from each cells to form gate signals for driving converter MOSFETs. The greatest advantage of this technique is that as CUK converter is used the power lost in this technique will be minimum because CUK converters has got efficiency of more than 95%.The paper presents basic principles and theoretical analysis of CUK converter action, control strategy that is to be adopted for the equalization scheme. The P-Spice analysis of converter, few experimental waveforms etc.are also included in this paper.
2014 International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE), 2014
Solar energy forms the major alternative for the generation of power keeping in mind the sustaina... more Solar energy forms the major alternative for the generation of power keeping in mind the sustainable development with reduced greenhouse emission. For improved efficiency of the MPPT which uses solar energy in photovoltaic systems(PV), this paper presents a technique utilizing improved incremental conductance(IncCond) MPPT with direct control method using SEPIC converter. Several improvements in the existing technique is proposed which includes converter design aspects, system simulation & DSP programming. For the control part dsPIC30F2010 is programmed accordingly to get the maximum power point for different illuminations.DSP controller also forms the interfacing of PV array with the load. Now the improved IncCond helps to get point to point values accurately to track MPP's under different atmospheric conditions.MATLAB and Simulink were employed for simulation studies validation of the proposed technique. Experiment result proves the improvement from existing method.
There is so many applications in which the cells must be used in series to form a battery pack. W... more There is so many applications in which the cells must be used in series to form a battery pack. When a group of cells are arranged to form a battery pack the voltage across individual cells must be equal at all times. Otherwise the battery life gets reduced as the change in voltage level in any one cell will adversely affects other cells. This paper aims to introduce a new technology of equalizing the voltage across individual cells in a battery pack at every instant. The basic element in this technology is the CUK-converter, which is a DC-DC converter.CUK is a switched mode control and this switching is established with the help of microcontroller which manipulates the signals from each cells to form gate signals for driving converter MOSFETs. The greatest advantage of this technique is that as CUK converter is used the power lost in this technique will be minimum because CUK converters has got efficiency of more than 95%.The paper presents basic principles and theoretical analysis of CUK converter action, control strategy that is to be adopted for the equalization scheme. The P-Spice analysis of converter, few experimental waveforms etc.are also included in this paper.
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Papers by JERIN GEORGE