POWER COMPONENTS COMPENSATION BY UTILIZING PV CONVERTER FUNCTIONS

Abstract

Power quality improvement is very important aim especially in the grids that contains nonlinear load because of the distortion caused by those loads. PV array systems may be utilized to improve power quality due to the VSC which is the heart of PV system. VSC can be excited according to load nature and PV real power quantity. In this paper a special technique proposed to drive VSC transistors in such way ensures power quality improvement and real power utilization. The proposed study based instantaneous analysis for load current and to estimate the VSC target current and take in care the real power produced by PV array, finally the actual current produced by the VSC is compared with the target current to obtain the error signal that will be used to drive the VSC in the next cycle