TY - GEN
T1 - Simple time domain analysis of a five-level H-bridge Flying Capacitor converter voltage balancing
AU - Thielemans, Steven
AU - Ruderman, Alex
AU - Reznikov, Boris
AU - Melkebeek, Jan
PY - 2010/12/27
Y1 - 2010/12/27
N2 - Flying Capacitor (FC) multilevel Pulse Width Modulated (PWM) converters are an attractive choice due to the natural balancing property of the capacitor voltages. The balancing can be studied in the time domain, which results in easy to interpret expressions regarding parameter influence. Time domain analysis is normally done by time averaging of the system model over a PWM-period. In this paper a new method is presented starting from the "voltage unbalance" excessive energy which has to be dissipated in the converter load by switching harmonics in the load current. This is applied on a five-level H-bridge converter, which has dynamics of a high order and is normally hard to describe in the dime domain. The proposed method results in time domain parameters exactly describing the behaviour and the balancing of the capacitor voltages of the five-level H-bridge converter.
AB - Flying Capacitor (FC) multilevel Pulse Width Modulated (PWM) converters are an attractive choice due to the natural balancing property of the capacitor voltages. The balancing can be studied in the time domain, which results in easy to interpret expressions regarding parameter influence. Time domain analysis is normally done by time averaging of the system model over a PWM-period. In this paper a new method is presented starting from the "voltage unbalance" excessive energy which has to be dissipated in the converter load by switching harmonics in the load current. This is applied on a five-level H-bridge converter, which has dynamics of a high order and is normally hard to describe in the dime domain. The proposed method results in time domain parameters exactly describing the behaviour and the balancing of the capacitor voltages of the five-level H-bridge converter.
KW - Multilevel converters
KW - Pulse Width Modulation (PWM)
UR - http://www.scopus.com/inward/record.url?scp=78650330943&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78650330943&partnerID=8YFLogxK
U2 - 10.1109/EPEPEMC.2010.5606806
DO - 10.1109/EPEPEMC.2010.5606806
M3 - Conference contribution
AN - SCOPUS:78650330943
SN - 9781424478545
T3 - Proceedings of EPE-PEMC 2010 - 14th International Power Electronics and Motion Control Conference
SP - T2139-T2146
BT - Proceedings of EPE-PEMC 2010 - 14th International Power Electronics and Motion Control Conference
T2 - 14th International Power Electronics and Motion Control Conference, EPE-PEMC 2010
Y2 - 6 September 2010 through 8 September 2010
ER -