Improved Dynamic Performance of Power Quality Using 9 - level DSTATCOM with DG Application

Abstract

Accumulation of electricity demand due to elevate the industrialization and population, energy generation is veritably a challenging in now a days. Improvement of power quality is the greater concern in advanced power system element, it is essential to congregate the need of energy by employ the renewable energy generating sources like pv, fuel cell, biomass, wind, etc and utilizing many more applications like grid interconnected systems, power quality improvement. The situations like harmonic, reactive power exchanging, power factor correction, balancing the load & so on, due to greater effect on highly susceptible loads are to be encouraged in power distribution system. To enhance these circumstances, custom power appliances are used to achieve high grid stability. In that CHB based D-STATCOM is a meticulous power appliance for enhancing harmonic distortions from high power semiconductor switching device, exchanging the both active & reactive power, defend the gird stability by implementing DG technology, to regulate the power quality issues in power distribution network. There are several control strategies used for this operation of D-STATCOM. This paper highlights the improved dynamic performance of 9-level CHB multilevel inverter based DSTATCOM with energy backup scheme and controlled by pwm control technique founded by IRP theory for generation of reference current signals and is also compared with 7-level CHB scheme for the better results in the view of power quality