DocumentCode
422806
Title
Active commutated thyristor CSI for grid connected photovoltaic applications
Author
Prasad, J. S Siva ; Fernandes, B.G.
Author_Institution
Energy Syst. Eng., Indian Inst. of Technol., Mumbai, India
Volume
3
fYear
2004
fDate
14-16 Aug. 2004
Firstpage
1767
Abstract
A new three phase active commutated thyristor current source inverter (CSI) topology is proposed for grid connected photovoltaic systems. Space vector PWM with a special switching sequence, which ensures proper commutation of thyristors, is implemented. In order to suppress the natural frequency of oscillations of LC filter and to ensure stability of the system, a charge controller in synchronous rotating reference frame is described. This allows easy design of PI controller gains. The simulation results of a 7-kVA inverter are presented.
Keywords
PI control; PWM invertors; commutation; passive filters; photovoltaic power systems; power semiconductor switches; power system stability; thyristors; 7 kVA; CSI; LC filter; PI controller; active commutated thyristor; charge controller; current source inverter; grid connection; oscillations; photovoltaic systems; space vector PWM; stability; switching sequence; synchronous rotating reference frame; thyristor commutation;
fLanguage
English
Publisher
ieee
Conference_Titel
Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International
Conference_Location
Xi´an
Print_ISBN
7-5605-1869-9
Type
conf
Filename
1377016
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