Title :
Transient Modeling and Control of Z-Source Current Type Inverter
Author :
Vilathgamuwa, D.M. ; Loh, P.C. ; Uddin, M.N.
Author_Institution :
Nanyang Technol. Univ., Singapore
Abstract :
This paper presents transient analysis and controller development of newly proposed Z-source current-type inverter (ZSCI). With the use of state space and small signal analysis, transient and steady-state models for ZSCI are developed. Non- minimum-phase characteristics of ZSCI DC-side impedance network due to the presence of RHP zero in its control-to-output transfer functions is revealed. Furthermore, steady-state equations of ZCSI are used to evaluate steady state gains of the inverter. A charge-based controller is developed to dampen oscillations and stabilize the inverter ac output. Simulation and experimental results are presented to validate the modeling and proposed control methods. A comprehensive set of simulated and experimental results are presented.
Keywords :
controllers; integrated circuit modelling; invertors; power integrated circuits; RHP zero; Z source current type inverter; charge based controller; control to output transfer functions; small signal analysis; state space analysis; steady state equations; transient modelling; Equations; Impedance; Motor drives; Power system modeling; Pulse width modulation inverters; Steady-state; Switches; Switching circuits; Transfer functions; Transient analysis;
Conference_Titel :
Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-1259-4
Electronic_ISBN :
0197-2618
DOI :
10.1109/07IAS.2007.278
