Title :
A novel single stage, transformerless PV inverter
Author :
Gautam, Vishakha ; Kumar, Ajit ; Sensarma, Parthasarathi
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, Kanpur, India
fDate :
Feb. 26 2014-March 1 2014
Abstract :
This paper presents a novel single stage, single phase, common ground, transformer-less inverter for PV application. The ideal gain of the inverter is minus infinity to plus infinity. Converter is derived from intelligent circuit connections of Ćuk converter and Watkins-Johnson converter. The control to output transfer function contains right half plane (RHP) zeros, which leads to a limited closed loop bandwidth. This limitation is overcame by current programmed controller. Analytical foundations are followed by simulation results.
Keywords :
DC-DC power convertors; invertors; photovoltaic power systems; Cuk converter; Watkins Johnson converter; intelligent circuit connections; output transfer function; right half plane zeros; single stage inverter; transformerless PV inverter; Capacitors; Inductors; Inverters; Resonant frequency; Steady-state; Switches; Topology; Single stage inverter; common ground PV inverter; doubly ground; single phase inverter; transformer-less inverter;
Conference_Titel :
Industrial Technology (ICIT), 2014 IEEE International Conference on
Conference_Location :
Busan
DOI :
10.1109/ICIT.2014.6894951
