A unity power factor boost rectifier with a predictive capacitor model for high bandwidth DC bus voltage control.
MetadataShow full item record
Single-phase rectifiers with power factor correction circuits based on the boost converter have broad application in consumer equipment. A fundamental design difficultly iscaused by the need to trade-off the input line current wave shape and the dynamic response of the output energy storage capacitor voltage regulation loop. The energy balance requirement inherent in single-phase systems forces a significant 100 Hz voltage ripple on the output capacitor. A high bandwidth voltage regulation loop will feed back enough of the 100 Hz component to distort the current reference signals for the inner current control loop distorting the line wave shape. A reference model can be used to construct a ripple-free estimate of the capacitor voltage. This paper shows that improved output capacitor voltage regulation can be achieve simultaneously with a high quality input current spectrum.
Showing items related by title, author, creator and subject.
A Unity Power Factor Boost Rectifier with a Predictive Capacitor Model for High Bandwidth DC Bus Voltage ControlWolfs, Peter; Thomas, P. (2006)Single phase rectifiers with power factor correction circuits based on the boost converter find broad application in consumer equipment. A fundamental design difficultly is caused by the need to trade off the input line ...
Boost Rectifier Power Factor Correction Circuits with Improved Harmonic and Load Voltage Regulation ResponsesWolfs, Peter; Thomas, P (2007)The time domain step response for rapid load changes can be improved in boost type power factor correction circuits by using a capacitor voltage model. In single phase PFC circuits, the dc bus voltage must have a significant ...
Improved multilevel hysteresis current regulation and capacitor voltage balancing schemes for flying capacitor multilevel inverterShukla, A.; Ghosh, Arindam; joshi, A. (2008)This paper focuses on the development of multilevel hysteresis current regulation strategies. Two such strategies have been discussed and some modifications in their control tasks have been proposed to achieve more reliable ...