TY - GEN
T1 - A comparative study of two controllers for single stage three-level AC/DC converters
AU - Agamy, Mohammed S.
AU - Jain, Praveen K.
PY - 2006
Y1 - 2006
N2 - This paper studies the performance of two control strategies applied to a new single-stage three-level resonant AC/DC converter. Two Control techniques are studied in order to achieve : i) tightly regulate the output voltage, ii) input current shaping as well as iii) DC-bus voltage regulation over the whole input voltage and loading range. The two controllers are: a) variable frequency pulse width modulation control and b) variable frequency phase shift control. The first controller uses pulse width modulation to regulate the dc-bus voltage to a pre-specified value, whereas the second employs phase shift control to achieve this target. The variable frequency is used to regulate the output voltage. Using these methods of control greatly reduces the frequency range required for output voltage regulation from no-load to full-load. The operation principles and limitations for both controllers are studied and the different topologies to which each controller can be applied. The performance of the two control techniques is studied for a three level LCC resonant half bridge converter with an input inductor connected to the lower pair of switches.
AB - This paper studies the performance of two control strategies applied to a new single-stage three-level resonant AC/DC converter. Two Control techniques are studied in order to achieve : i) tightly regulate the output voltage, ii) input current shaping as well as iii) DC-bus voltage regulation over the whole input voltage and loading range. The two controllers are: a) variable frequency pulse width modulation control and b) variable frequency phase shift control. The first controller uses pulse width modulation to regulate the dc-bus voltage to a pre-specified value, whereas the second employs phase shift control to achieve this target. The variable frequency is used to regulate the output voltage. Using these methods of control greatly reduces the frequency range required for output voltage regulation from no-load to full-load. The operation principles and limitations for both controllers are studied and the different topologies to which each controller can be applied. The performance of the two control techniques is studied for a three level LCC resonant half bridge converter with an input inductor connected to the lower pair of switches.
KW - Power factor correction
KW - Single stage converters
KW - Three level resonant converters
UR - https://www.scopus.com/pages/publications/39049172637
U2 - 10.1109/CCECE.2006.277512
DO - 10.1109/CCECE.2006.277512
M3 - Conference contribution
SN - 1424400384
SN - 9781424400386
T3 - Canadian Conference on Electrical and Computer Engineering
SP - 235
EP - 238
BT - 2006 Canadian Conference on Electrical and Computer Engineering, CCECE'06
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 Canadian Conference on Electrical and Computer Engineering, CCECE'06
Y2 - 7 May 2006 through 10 May 2006
ER -