Title :
Space Vector Modulation with DC-Link Voltage Balancing Control for Three-Level Inverters
Author :
Bhalodi, Kalpesh H. ; Agrawal, Pramod
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Roorekee
Abstract :
The DC-link voltage balancing scheme for three-level inverter is proposed in this paper. Dependence of the DC-link capacitor voltage deviation on DC-link current and inverter switching states is established for proposed three-level inverter. Pulse pattern rearrangements for space vector PWM (SVPWM) using degree of freedom available in choice of redundant space vectors, sequencing of vectors, and splitting of duty cycles of vector are best exploited. Self neutral-point voltage deviation control in feed forward and simplified closed loop scheme are proposed in this paper. The effectiveness of proposed scheme is verified by computer simulations.
Keywords :
PWM invertors; closed loop systems; feedforward; voltage control; DC-link voltage balancing control; closed loop scheme; feed forward; pulse pattern rearrangement; self neutral-point voltage deviation control; space vector PWM; three-level inverter switching; Application software; Capacitors; Computer simulation; Diodes; Feeds; Medium voltage; Pulse width modulation inverters; Space vector pulse width modulation; Switches; Voltage control; Diode-clamped inverter; Multilevel inverter; Space-vector modulation; Voltage source inverter;
Conference_Titel :
Power Electronics, Drives and Energy Systems, 2006. PEDES '06. International Conference on
Conference_Location :
New Delhi
Print_ISBN :
0-7803-9772-X
Electronic_ISBN :
0-7803-9772-X
DOI :
10.1109/PEDES.2006.344424
