Title :
Snubbers in PWM-VSI-inverter
Author :
Blaabjerg, Frede
Author_Institution :
Inst. of Energy Technol., Aalborg Univ., Denmark
Abstract :
Three snubbers intended for pulsewidth modulated (PWM)-VSI inverter applications are investigated. The snubbers have some common components and reduce space and cost. Useful, simple expressions for design of the three snubbers are given. The snubbers are simulated for one phase-leg using the circuit simulator PSPICE. Simple component models are used. The simulations are compared with measurements in one phase-leg. Measurements are reported on the three snubbers in a 5 kVA IGBT PWM inverter. It is concluded that the snubbers each have different benefits, and that there is good agreement between the simulations and the measurements
Keywords :
circuit analysis computing; digital simulation; invertors; overvoltage protection; pulse width modulation; 5 kVA; IGBT PWM inverter; PWM-VSI-inverter; circuit simulator PSPICE; snubbers; Circuit simulation; Inductance; Leg; Multichip modules; Pulse width modulation; Pulse width modulation inverters; Snubbers; Stress; Switches; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-0090-4
DOI :
10.1109/PESC.1991.162661
