Title :
An optimal controller for voltage balance and power losses reduction in MPC AC/DC/AC converters
Author :
Marchesoni, M. ; Mazzucchelli, M. ; Tenca, P.
Author_Institution :
Dipt. di Ingegneria Elettrica ed Elettronica, Cagliari Univ., Italy
Abstract :
DC-link capacitor voltages in multi-point-clamped (MPC) power converters must be actively controlled in order to achieve a correct voltage sharing. This work presents, in detail, a control strategy, which has been developed according to an energy criterion, that balances the capacitor voltages using only the redundant switching configurations in the synthesis of the line-to-line voltages, while minimizing the additional switching losses
Keywords :
AC-AC power convertors; AC-DC power convertors; DC-AC power convertors; control system synthesis; invertors; losses; optimal control; rectifying circuits; voltage control; DC-link capacitor voltages; control strategy; energy criterion; line-to-line voltages synthesis; multi-point-clamped AC/DC/AC power converters; optimal controller; power losses reduction; redundant switching configurations; switching losses; voltage balance; voltage sharing; Analog-digital conversion; Capacitors; Control systems; Optimal control; Pulse width modulation inverters; Rectifiers; Static power converters; Switching loss; Topology; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual
Conference_Location :
Galway
Print_ISBN :
0-7803-5692-6
DOI :
10.1109/PESC.2000.879896
