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Pulse width modulation (PWM) methods play a major role to control the various power electronic converters to progress the recital of the system. In this paper, a comparative analysis is done for three dimensional space vector modulation (3D-SVM) and four dimensional space vector modulation (4D-SVM) for five-phase voltage source inverter. 3D-SVM method comprises all qualities of conventional SVM; switching time calculation is simple and much suitable for three-phase system; where in five-phase system, it has redundant switching state vectors. 4D-SVM includes advantages of 3D-SVM and other conventional methods, it employs only nonredundant switching state vectors; it directs to diminish the intricacy in switching time calculations and avoids trigonometric calculations and look up tables for reference vector identification. The various parameters such as total harmonic distortion, improved output voltage, minimized common mode voltage and switching time calculation are analyzed and compared for 3D-SVM and 4D-SVM techniques. Simulation and hardware results are acquired and established using matlab simulink and FPGA processor, respectively.

Decentralized Application is majorly used for sharing the most important information of the students' among various users. Blockchain technology is used to address security concerns associated with students' credential sharing. A revolutionary blockchain-based architecture is proposed, and the application is then built as a distributed one (DApp). In order to avoid the counterfeiting of the students' credentials the features of block chain technology are more widely used. This application is used to share the credentials of the student by the college/school directly to student and those data can be used by the companies those who recruit students can directly access students' data by getting the permission from students' without any third-party involvement, this saves time and money. Ethereum framework is used to create an application in which Truffle framework is used to make the developer's life easier by creating smart contracts and has the migration and uses web3.js as it is beginner friendly. Furthermore, the results of the tests are used to analyses both costs and efficiency.