Intelligent Control Algorithms for DSTATCOM and its Applications

Abstract

Power quality in power distribution systems has been the topic of much research with newlinethe significant benefits and advancements in the applications of power electronics at newlineutility appliances due to its compactness; energy efficient and reliability. In a threephase newlinedistribution system, all possible situations are included, which deviate the newlinequality of waveform of voltage or current at the point of common coupling (PCC) newlinefrom the sinusoidal waveform with amplitude corresponding to the rated root mean newlinesquare (RMS) value at rated frequency for all three phases have been included. This newlinelures to a decrease of power transfer and a poor power factor. However, distribution newlinesystems do not behave in an ideal power quality limit. The systems react dynamically newlineto changes in active and reactive powers, influencing the magnitude of the voltage newlineand power factor of the distribution systems. Quite often, it gives rise to a myriad of newlinelosses and operational problems; the power distribution operator has to intervene to newlinetry to achieve power redistribution with good quality. The distribution static newlinecompensator (DSTATCOM) is one of the custom power devices used to enhance the newlinequality and reliability of power delivered to customers. The functions of newlineDSTATCOM solely depend on developed control algorithms. The developed newlineintelligent control algorithms for the DSTATCOM open up new opportunities for newlinecontrolling and enhancing power quality without and as well as with integrated newlinerenewable sources in power distribution systems. The opportunities arise through the newlineability of DSTATCOM to control the interrelated parameters that govern the newlineoperation of harmonics elimination, load balancing, voltage regulation and power newlinefactor improvement.The DSTATCOM integrated distribution system is effectively newlineexamined and investigations have been made to mitigate the power quality issues newlineunder balanced and unbalanced loads. newline