Title :
High performance control of single-phase power factor correction circuits using a discrete time domain control method
Author :
Rajagopalan, J. ; Cho, J.G. ; Cho, B.H. ; Lee, F.C.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
A simple high performance discrete time domain control method of single-phase power factor correction (PFC) circuits is presented to improve the dynamic performance of the output voltage control loop. By adding only a sample and hold (S/H) in the outer voltage loop, the output voltage can be sensed without the 120 Hz ripple and accordingly, a high bandwidth output voltage loop can be designed without any input current distortions. Analysis and design steps are detailed. Simulation results are presented to verify that the performance has improved over a conventional voltage loop control method
Keywords :
AC-DC power convertors; control system analysis; control system synthesis; discrete systems; network analysis; network synthesis; power factor correction; power system harmonics; sample and hold circuits; time-domain analysis; time-domain synthesis; voltage control; design; discrete time domain control method; dynamic performance; output voltage control loop; performance; sample and hold circuit; simulation; single-phase power factor correction circuits; Bandwidth; Circuits; DC-DC power converters; Frequency; Low voltage; Power electronics; Power factor correction; Power quality; Reactive power; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1995. APEC '95. Conference Proceedings 1995., Tenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2482-X
DOI :
10.1109/APEC.1995.469089
