Optimal control for sub-unity power factor correction
Department of Electrical and Computer Engineering
This paper introduces an optimal control method for input current of a boost converter to reduce the double frequency voltage ripple at the load terminals. Using a calculus of variations method, the ideal current waveform is calculated and it is given as a reference current to a boost converter under a hysteretic control scheme. Both simulation and experimental results show a nearly 50 % reduction in capacitor size while the converter still meets IEC-61000-3-2 (class A) harmonics requirements with a power factor of 0.8 or higher. Therefore, using smaller size capacitors essentially resulted in lower cost, smaller size and higher reliability.
2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012
Optimal control for sub-unity power factor correction.
2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012, 2908-2913.
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