Design and Hardware Implementation of DC-DC Converter and DC-AC Inverter

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dc.contributor.authorMohsin Ali
dc.contributor.authorMukaram Ayaz
dc.contributor.authorHamza Ali
dc.date.accessioned2019-02-04T10:39:54Z
dc.date.available2019-02-04T10:39:54Z
dc.date.issued2018
dc.descriptionJameel Ahmeden_US
dc.description.abstractAs the conventional energy resources are declining day by day, the world trend is shifting towards renewable energy resources. Solar energy is one of the major sources of providing cheaper and cleaner energy, but this energy comes at a cost. To extract energy from photo-voltaic panel, power electronic based conversion system is designed which would efficiently convert varying dc power into stable ac power. To achieve this task, PWM based converter and inverter are designed employing high frequency, which significantly reduce component size and cost, but this comes at a cost of increased noise and switching losses. In remedy to these issues magnetic components are designed on ferrite cores. Initially varying DC voltages of range 20-45 volts from PV panel are converted to stable DC 15 volts in full-bridge DC-DC converter with less than 1 percent variation, employing feedback of type-II compensator. These stable voltages are then converted to single phase AC with constant 50 Hz frequency and RMS value of 220 volts in PWM based square wave inverter. The switching frequency of 25 kHz is used in converter and of 50 Hz in inverter. All aim, calculations, tests, data and conclusions have been documented with in this report. As the converter is based on high frequency switch mode design, it accounts for all the shortcomings of the linear power supplies. PWM based square inverter is made of simple design employing low frequency to justify cost and complexity. Special high frequency transformer and inductors are designed in converter to provide safety in terms of isolation and filter design and to store energy operating in continuous conduction mode. To reduce noise in converter opto-coupler and decoupling capacitors are used. Comprehensive and state of the art design resulted in a much smaller, lighter, cheaper and efficient energy conversion mechanism which would ultimately increase the use of solar energy in lives of people and would also help them get rid of load-shedding and would promote green energy. Realizing the fact that sudden change in load and input voltages would bring bunch of harmonics comprising a large range of frequencies, hence a feedback design ensures stability conditions using conventional control techniques employing bode plot and root locus. Results are tolerable and gives variations of less than 2 % in voltages and less than 1 % in frequency giving constant frequency of 50 Hz. Rise time, settling time, overshoot, damping all are in desirable limits. Total Harmonic Distortion in current waveform is less than 15 %.en_US
dc.identifier.urihttps://escholar.umt.edu.pk/handle/123456789/3665
dc.language.isoenen_US
dc.publisherUniversity of Management & Technologyen_US
dc.subjectDC-AC Inverter, DC-DC Converteren_US
dc.subjectBSen_US
dc.titleDesign and Hardware Implementation of DC-DC Converter and DC-AC Inverteren_US
dc.titleDesign and hardware implementation of dc-dc converter and dc-ac inverteren_us
dc.typeThesisen_US
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