A simplified hysteresis current control for cascaded converter fed switched reluctance motor

Simple constructional features with no windings on rotor circuit and robustness make switched reluctance motor (SRM) a most used motors in industrial applications. Peak motor voltage rating depends on the rated voltage of the power switches. In conventional asymmetrical converter driving SRM, voltage rating of the motor depends on rating of power electronic switches in converter. Demand to rise the motor rating insists to put pressure on converter switching components which results in increased switching losses. A cascaded converter topology for SRM reduces the rating of switching components as compared to conventional converters for SRM. This paper presents a cascaded converter fed SRM drive with reduced switching losses. The paper presents a simplified hysteresis current control (HCC) for cascaded converter fed SRM. Simplified HCC control method reduces switching losses as HCC is applied to only one bridge of cascaded converter. Though the performance of the SRM remains same with cascaded converter fed SRM with HCC applied to only one bridge or to two bridges and with conventional asymmetrical converter, the switching losses are reduced to a great extent when HCC applied to one bridge of cascaded converter fed SRM. Performance of SRM is illustrated with conventional asymmetrical converter fed SRM and is compared to cascaded converter while HCC applied to only one bridge and applied to two bridges of cascaded converter. Proposed work is simulated using MATLAB/SIMULINK and results are presented

Elevated Step-Up Gain DC-DC Converter Featuring Switched Capacitor and Regenerative Boost Configuration for Enhanced Solar PV Applications

The innovative elevated step-up gain DC-DC converter with switched capacitor and regenerative Boost configuration is a pivotal advancement in solar photovoltaic (PV) energy conversion. With a focus on enhancing solar PV applications, this converter efficiently elevates the low-voltage DC output of solar panels, addressing the challenge of low-voltage outputs inherent in solar panels. This breakthrough technology facilitates energy storage, off-grid power supply, and grid integration, contributing to a sustainable solution for optimizing solar power consumption. The converter's regenerative qualities promise to revolutionize solar PV applications, increasing sustainability and efficiency. Its main feature, a significant increase in step-up gain, ensures the effective conversion of low-voltage DC output from solar panels to higher levels, crucial for diverse applications in solar PV systems. This transformative technology plays a vital role in creating a more environmentally and energy-resilient world

Design of PV fed single-switch transformer less topology powered electric vehicle

As a result of an increase in the availability of resources that were not harmful to the environment, solar energy applications shot to popularity. Photovoltaic cells power systems that necessitate DC-DC converters because of their low voltage output. This investigation uses photovoltaic cells (PV) to power a high-voltage gain design with just one switch and no transformer. The proposed circuit utilizes a single regulated switch, which contributes to a reduction in switching losses. It requires fundamental pulse regulation. The network used a switched capacitor cell and an LC passive filter to provide an accurate step-up voltage. We can obtain the equation for the step-up voltage gain from the steady-state continuous conduction mode. The equations used for the theoretical design of converters include energy. To show that the topology is comparable with other modern converters that have been published, a comparison was made between it and other converters. In order to validate the converter's effectiveness, simulations built in MATLAB and Simulink are used

Energy Conservation Opportunities and its Techniques in Net Zero Energy Buildings

The electrical energy is very necessary to address all household needs and commercial needs. This energy is used all over the world for almost all purposes. It is diminished day by day as fossil fuels are used for energy production. As natural resources are limited and getting exhausted, there is every need to conserve energy. It even involves in rising up pollution and increasing the global temperature by emitting greenhouse gases. It shows severe impact of climate. This paper explains the term energy conservation, methods to conserve energy, use of energy efficient devices and also how energy efficient devices are chosen for various purposes. This paper even focuses on net zero energy buildings and explains a methodology for arranging lights and blind control for windows in net zero buildings to conserve energy