Title :
Improvement of Z-source inverter properties using advanced PWM methods
Author :
Rabkowski, Jacek
Author_Institution :
Inst. of Control & Ind. Electron., Warsaw Univ. of Technol., Warsaw, Poland
Abstract :
This paper describes improvement of Z-source inverter (ZSI) properties possible due to advanced PWM methods. Switching conditions and distribution of semiconductor power losses in the ZSI are analyzed. Two new PWM methods are proposed, including Asymmetric Optimized Switching Type (AOST) with efficiency improvement by 2,7%. Considerations are illustrated with datasheet based calculations, simulation results and test of the Z-source inverter 2,5 kVA laboratory model.
Keywords :
PWM invertors; switching convertors; Z-source inverter properties; advanced PWM methods; apparent power 2.5 kVA; asymmetric optimized switching type; semiconductor power losses; switching conditions; Bridge circuits; Industrial electronics; Leg; Power semiconductor switches; Pulse width modulation; Pulse width modulation inverters; Semiconductor devices; Semiconductor diodes; Testing; Voltage; PWM; Z-source inverter; discontinuous modulation; efficiency;
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9
