AUTOMATIC POWER FACTOR CORRECTION
ROSLINA BINTI MOHD RAZAK
UNIVERSITI TEKNIKAL MALAYSIA MELAKA
“I hereby declare that I have read this project report and in my opinion this project report is sufficient in terms of scope and quality for awarding the degree of Bachelor of Electrical Engineering (Industrial Power)”
Signature: .......................................................................... Name of Supervisor: En. Azhar Bin Ahmad
Date: 8 May 2009 ………………………………………
AUTOMATIC POWER FACTOR CORRECTION
ROSLINA BINTI MOHD. RAZAK
A project report submitted in partial fulfilment of the requirements for awarding the degree of Bachelor of Electrical Engineering (Power Industry)”
Faculty of Electrical Engineering UNIVERSITI TEKNIKAL MALAYSIA MELAKA
I declare that this project report entitled “Automatic Power Factor Correction” is the result of my own research except as cited in the references. The project report has not been accepted for any degree and is not concurrently submitted in candidature of any other degree.
Signature: ……..……………………………….. Name: Roslina Binti Mohd Razak Date: 8 May 2009
To my beloved family and friends...
Alhamdulillah. I am greatly indebted to Allah on His mercy and blessing for making this project successful. Secondly, I wish to express my sincere appreciation to my degree project supervisor, En. Azhar Bin Ahmad for his encouragement, guidance and valuable advices, without his continued support and interest, this project report would not have been the same as presented here. Next, I would like express my thankful to Universiti Teknikal Malaysia Melaka (UTeM) and their staffs, for the opportunity and encouragement to pursue my study. My sincere appreciation also extends to all my lectures and entire staffs in Utem for their assistance at various occasions. Their views, comments and tips are very helpful in completing this project. Finally, I am also very grateful to all my family and friends for their continuous encouragement and support, thank you very much.
This paper discusses the design, implementation and analysis of a single phase (240V, 50Hz) capacitor bank controller unit. Power factor correction using capacitor banks reduces reactive power consumption which will lead to minimization of losses and at the same time increases the electrical system’s efficiency. Power saving issues and reactive power management has brought to the creation of single phase capacitor banks for domestic applications. The development of this project is to enhance and upgrade the operation of single phase capacitor banks by developing a micro-processor based control system. The control unit will be able to control capacitor bank operating steps based on the varying load current. Current transformer is used to measure the load current for sampling purposes. This project applies the Peripheral Interface Controller ( PIC ) microcontroller to produce switching commands in order to control the capacitor bank steps. Intelligent control using this micro-processor control unit ensures even utilization of capacitor steps, minimizes number of switching operations and optimizes power factor correction. Fluorescent lamp will be use as loads in this single phase capacitor bank developments. That fluorescent lamp shall be divided into different load value to enable capacitor bank model is controlled systematically.
Tesis ini membincangkan rekabentuk, pembangunan serta analisa keberkesanan unit pengawal bank kapasitor satu fasa (240V,50Hz). Pembetulan faktor kuasa menggunakan bank kapasitor berupaya mengurangkan penggunaan kuasa reaktif yang secara tidak langsung mengurangkan kehilangan kuasa dan dalam pada masa yang sama meningkatkan kecekapan sistem elektrik satu fasa. Dalam usaha menjimatkan tenaga, kini kapasitor bank bagi litar satu fasa untuk kegunaan domestik...