Abstract
Abstract:
In this paper, a robust controller asserting a unity power factor rectifier is studied.
The inner current control loop is a hysteresis type with switching frequency kept below a
maximum imposed value; the harmonics generated are spread in certain range below the
maximum imposed frequency and thus reducing the electromagnetic interference. The voltage
controller feed-forwards the information about the dc output power to improve the dynamic
response for any type of dc load. To demonstrate the improved response of the voltage regulator,
a buck regulator as non-linear load drawing approximately 2.5 kW, is used.