1 AIT Asian Institute of Technology

A study of harmonics generated in buildings : a case study in the Asian Institute of Technology

AuthorAhmed, Sharif
Call NumberAIT Thesis no. ET-98-21
Subject(s)Harmonics (Electric waves)

NoteA thesis submitted in partial fulfillment of the requirements for the degree of Masters of Engineering, School of Environment, Resources and Development
PublisherAsian Institute of Technology
AbstractElectricity plays a very important role in our life or we can say that our modern life is based on the electricity. With the growth in the electronically-controlled equipment in the workplace, higher quality supply is more critical than ever before. A power quality problem can be defined as a problem caused by a change in current, voltage or frequency that causes a fault or malfunction in an equipment. Harmonic in one of the problem in Power Quality. Harmonic can distort the Voltage and the Current. Both electric utility and end electrical users are becoming increasingly concerned about the quality of electric power. Because load equipment is more sensitive to power quality variations than equipment applied in the past. Many new load devices contain microprocessor-based controls and electronic devices that are sensitive to many types of disturbances. The increasing emphasis on overall power system efficiency has resulted in a continued growth in the application of devices such as high-efficiency, adjustable-speed motor drives and shunt capacitors for power factor correction to reduce losses. This is resulting in increasing harmonic levels on power systems and has many people concerned about the future impact on system capabilities. The main electric power harmonic sources are the converters in nonlinear loads. These converters are using in electronic equipment like computers, printers, fax machines, copiers etc. The trend of using these equipment is increasing day by day and increasing the electric power harmonic generation. When the electric power harmonic generation is severe at the end users load, it directs to power system which may affect the other equipment. The affect include: Computer data loss, Erratic process control, Maloperation of robotics, Errors in the metering and instrumentation device readings, Maloperation of protective relays, malfunction of harmonic sensitive electronic equipment, equipment overheating, Loss of life failure, The remote control system mal-operation on power line, Telephone interference etc. Considering all these problems, Electric Power Harmonic become major concern in Power Quality nowadays. This study is aimed to predict harmonic generation in the buildings in the Asian Institute of Technology, future harmonic generation trend in these buildings and the measure to reduce them within standard limits.
Year1998
TypeThesis
SchoolSchool of Environment, Resources, and Development (SERD)
DepartmentDepartment of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC))
Academic Program/FoSEnergy Business Management (Professional Master) (PM-EBM)
Chairperson(s)Surapong C.;
Examination Committee(s)Yu, Cunyi ;Malik, A. S.;
Scholarship Donor(s)The Norwegian Government ;
DegreeThesis (M.Eng.) - Asian Institute of Technology, 1998


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