Secondary Distribution for Grid Interconnected Nine-level Inverter using PV system

K Rao
2013 IOSR Journal of Electrical and Electronics Engineering  
This paper proposes a Secondary distribution (single phase) nine -level inverter for gridconnected photovoltaic systems, with a novel pulse width modulated (PWM) control scheme. F o u r reference signals that are identical to each other with an offset that is equivalent to the amplitude of the triangular carrier signal were used to generate the PWM signals. The inverter is capable of producing nine levels of output-voltage levels (V dc , 3V dc /4, V dc /2,Vdc/4, 0, Vdc/4) from the dc supply
more » ... m the dc supply voltage. A digital proportional-integral current-control algorithm was implemented in a TMS320F2812 DSP to keep the current injected into the grid sinusoidal. The proposed system was verified through simulation and implemented in a prototype.
doi:10.9790/1676-0636168 fatcat:bahpxrtblvdx5kc5fursykd5wi