Power electronic controllers are the major harmonic producing components. Lower order harmonics a... more Power electronic controllers are the major harmonic producing components. Lower order harmonics are very dangerous for transformers, induction motors, generators and other equipment's. The filter design for the lower order harmonics is also a complex one. So the best way for the reduction of lower order harmonics is using pulse width modulation technique. The main abstract is to reduce the lower order and triplen harmonics which produce zero sequence components. The Crawling can be reduced using the PWM ac voltage controller. Third order harmonics is constant for all modulation index in PWM ac voltage controller, so filter design for 3rd order harmonics is easy and the cost of filter circuit is low.
Power electronic controllers are the major harmonic producing components. Lower order harmonics a... more Power electronic controllers are the major harmonic producing components. Lower order harmonics are very dangerous for transformers, induction motors, generators and other equipment's. The filter design for the lower order harmonics is also a complex one. So the best way for the reduction of lower order harmonics is using pulse width modulation technique. The main abstract is to reduce the lower order and triplen harmonics which produce zero sequence components. The Crawling can be reduced using the PWM ac voltage controller. Third order harmonics is constant for all modulation index in PWM ac voltage controller, so filter design for 3rd order harmonics is easy and the cost of filter circuit is low.
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