Reversible logic is leading area in power consumption. Based on its application, its emerging trend in power consumption. In ideal situations, reversible circuit yield nil power. Different methods of multiplier optimized in this paper. Like quantum computers, multipliers required to develop computational units. In the paper, two different methods of multiplier developed with very large bit width. Based on partial products hierarchical method is developed. Another method is Karatsuba's algorithm developed based on divide and conquers method. Finally, we compare the results of both two methods. The projected reversible multipliers are enhanced in terms of quantum cost, number of constant inputs, number of garbage outputs and complexity in hardware. In nanotechnology applications this multiplier can be used to construct complex system.
Abstract: Power quality has been an issue in electrical power systems. Disturbances occur in power quality which effects machines, some electric devices and severe cause will get very serious damages.
For normal and efficient operation it's necessary to compensate and acknowledge every type of the disturbances at earlier time of the power system. Many sorts of Custom Power Devices (CPD's) are used to resolve these issues .Here at present, one in every of those devices, Dynamic Voltage restorer (DVR) is conferred. In power distribution systems this is often best and effective device employed. During this project new structure and control methodology of multifunctional DVRs for voltage quality correction are mentioned. Proportional Integral Controller and Fuzzy Logic Controller are used for the PQ improvement. The performance of the device and Total HarmonicDistortion is compared with each other. The performance of the device like voltage swell, sag is projected.
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