Title :
A modified space vector PWM for Z-source inverter-modeling and design
Author :
Liu, Jingbo ; Hu, Jiangang ; Xu, Longya
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH
Abstract :
In this paper, an AC small-signal equivalent circuit model of continuous conduction mode (CCM) ZSI based on state space averaging is presented. The AC small-signal model includes the dynamics of ZSI introduced by the inductors and capacitors contained in the ZSI circuit, providing guidelines to the system control design. In addition, a novel modified space vector PWM is presented to distribute the shoot-through states into the zero vectors without compromise to the active space vector. Simulation results based on the design are presented, using the proposed SVPWM control strategy
Keywords :
PWM invertors; control system synthesis; equivalent circuits; state-space methods; AC small-signal equivalent circuit model; Z-Source inverter; ZSI circuit; continuous conduction mode; space vector PWM control; state space averaging method; Analog-digital conversion; Circuit simulation; Equivalent circuits; Guidelines; Inductors; Power system modeling; Pulse width modulation inverters; Space vector pulse width modulation; State-space methods; Switches;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Conference_Location :
Nanjing
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202746
