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Authors:Ajay Ahuja, Dr. D. R. Waghole, Dr. Sushil S. Ramdasi Pages: 1 - 15 Abstract: About 175 years have passed since the invention of the Fuel Cell by Schoenbein und Grove, however, fuel cell-based automobiles have received increased attention in the last few years due to growing public concern over urban air pollution and consequent environmental problems. Direct combustion of fuel for transportation accounts for over half of greenhouse gas emissions and a significant fraction of air pollutant emissions. Fuel cell power systems for automotive applications have the potential for high fuel efficiency and lower emissions. The energy demand depends greatly on driving characteristics, however from the power analysis and the power and energy requirements of a modern car, it is estimated that normal usage is expected to be 200 Wh/km. Hydrogen can be used in two ways to run Fuel Cells, firstly the fuel can be converted directly in the fuel cell, or it may be reformed to hydrogen to store on the vehicle. PubDate: 2022-04-22 Issue No:Vol. 13, No. 1 (2022)
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Authors:Aditya Tiwary Pages: 16 - 21 Abstract: In this paper a methodology for reliability improvement of radial distribution system by establishing optimal values of repair times and failure rates is considered. Objective function related to failure rates and repair times is been designed. Constraints are taken based on customer and energy based indices. Languid Particle Swarm Optimization (LPSO) a variant of Particle Swarm Optimization (PSO) has been used as optimization technique. The method is implemented on radial distribution system. Results obtained have been shown in result section. PubDate: 2022-04-25 Issue No:Vol. 13, No. 1 (2022)
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Authors:Shilpa Kathad, Kishan Bhayani Pages: 31 - 35 Abstract: To reduce the carbon emissions Renewable Energy sources are widely included into power generation. Now a days penetration of Renewable Energy Sources into gird is increased and it is a major concern for power engineers to maintain the power quality. Due to integration of Solar and Wind energy Systems in Grid, the power quality issues arise and grid may become weaker. Power grid integration of renewable energy sources is achieved through power electronic converters. These converters decouple the source from load without providing inertia. Due to this issue inertia of grid will decrease and blackout or cascading failures may occur. To maintain the stability of the grid, it is required to add synthetic inertia to the grid. In the presented work power quality issues are described. Literature review on power quality issues and its mitigation techniques has been covered. An attempt has been made to discuss about virtual inertia of Inverter during Grid Integration of Renewable Energy Sources. Inertia emulation and its control strategy has been proposed. To assure and maintain good quality of power at all the levels it is needed to develop an efficient technique to resolve the power quality issues. To improve the inertia of the system an efficient system is needed which can provide artificial inertia and system may become stable. PubDate: 2022-05-11 Issue No:Vol. 12, No. 1 (2022)
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Authors:Parmar Bhupendrabhai Devang, Alpesh Adesara, Anil Vasani, Anoop Budhrani Pages: 17 - 32 Abstract: In recent years, usage of variable speed drive systems has been increasing in various low power applications like automobile industries, domestic appliances, etc. To save the energy consumption of devices, there is a necessity in the usage of green and eco-friendly electronics. For improvement in power factor and speed control, BLDC with Zeta converter is proposed in this paper. Zeta converter is used for voltage regulation due to its wide range of speed control of BLDC Motor by controlling Voltage of DC link Capacitor. And unity power factor with low harmonics distortion is achieved. Here simulation environment with PSIM Version 9.0.3.400 Software. PubDate: 2022-03-07 Issue No:Vol. 11, No. 3 (2022)
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Authors:Abdul Wares Khan, Md. Nazmul Haque Pages: 33 - 39 Abstract: In Bangladesh, the usage of electricity is continuously increasing. Govt. is also trying to increase the electricity production by installing new power plants to meet the additional power demands. Most of the power plants are natural gas-based, coal-based or nuclear power-based. Considering the greenhouse effect; solar power plants could be one of the best solutions to meet the additional power demands as well as it has a lot of financial and environmental benefits. In this paper, modeling and analysis of a 100 kWp PV solar plant using PVsyst software will be discussed briefly. Important factors such as required area, the performance ratio of the arrays, total energy production per year and losses will also be discussed. PubDate: 2022-03-15 Issue No:Vol. 11, No. 3 (2022)
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Authors:Rahul Borana, Rahul Luhar, Rajendra Singh Pages: 40 - 47 Abstract: The adoption of new modern technology and advance electronic equipment, energy saving methods, barriers, adopting of sustainable energy arrangements, generator power supply, invertors etc... harming the power quality of the electrical distribution system. If there is some kind divergence related to current, voltage and periodic at the load side that results in failure of consumer side equipment. In this paper we are going to discuss some factors which leads to decrease in power quality, we will also discuss solution of losses and variation that are produced because of the harmonics in power distribution system, low power component, live power and opposite power etc. PubDate: 2022-03-28 Issue No:Vol. 11, No. 3 (2022)
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