Power Electronics for Renewable Energy Systems, Transportation and Industrial Applications
by Kamal Al-Haddad, Mariusz Malinowski, Haitham Abu-Rub
Chapter 17Active Power Filter
Ahmed M. Massoud1,3, Shehab Ahmed2 and Ayman S. Abdel-Khalik3
1Electrical Engineering Department, Qatar University, Doha, Qatar
2Electrical and Computer Engineering Department, Texas A&M at Qatar, Doha, Qatar
3Electrical Engineering Department, Alexandria University, Egypt
17.1 Introduction
The proliferation of power electronics-based devices and equipment has significantly affected the power quality of the grid, which changes its sinusoidal nature through adding harmonic distortion. Power electronics applications have penetrated several venues in our life. In residential applications, power electronics-based devices can be found not only in devices such as personal computers but also in refrigerators, freezers, air conditioning systems, cookers and lighting. Extending up to commercial applications, power electronics applications embrace air conditioning systems, heaters, central refrigeration, uninterruptible power supply, elevators and lighting. In industrial applications, power electronics exist in pumps, compressors, fans, blowers, arc furnaces, induction heating and arc welding. In addition, interfacing renewable energy sources to the grid necessitates converters to comply with the grid voltage and frequency requirements. This power electronics-based equipment increases the share of nonlinear loads compared with that of linear loads, and hence degrades the power quality of the grid. Simultaneously, power electronics-based loads are sensitive ...
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