Title :
AC Output Voltage Control with Minimization of Voltage Stress Across Devices in the Z-Source Inverter Using Modified SVPWM
Author :
Tae-Won Chun ; Quang-Vinh Tran ; Jung-Ryol Ahn ; Jih-sheng Lai
Author_Institution :
Dept. of Electr. Eng., Ulsan Univ.
Abstract :
The paper proposes the algorithms of AC output voltage control in the Z-source inverter while minimizing the voltage stress across the devices. A novel switching pattern in the SVPWM is used in order to boost easily the capacitor voltage by controlling a shoot through time. The possible operating region for obtaining a desired AC output voltage to DC input voltage is analyzed. The voltage stress across the switching devices can be so much reduced at a given AC output voltage. The proposed methods are verified with the simulation studies and experiments with 32-bit DSP
Keywords :
PWM invertors; switching convertors; voltage control; AC output voltage control; SVPWM switching pattern; Z-source inverter; capacitor voltage; switching devices; voltage stress minimization; Analog-digital conversion; Capacitors; Circuits; Digital signal processing; Equations; Leg; Pulse width modulation inverters; Space vector pulse width modulation; Stress control; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1712232