18-05-2010, 09:23 PM
Authors:
N.S.Sakthivel Murugan
Dr Nirmal Kumar
Abstract:
Among the various power quality problems, the voltage sags, are attracting a large amount of attention of researchers from industry. DVR gives the solution to the above mentioned problem. The main function of DVR is to mitigate the voltage sag. It controls voltage applied to the load by injecting voltage of compensating amplitude, frequency and phase angle to the distribution line. The DVR is primarily responsible for restoring the quality of voltage delivered to the end user when the voltage from the source is not appropriate to be used for sensitive loads. Usage of DVR enables consumers to isolate and protect themselves from transients and disturbances caused- by sags. DVR is simulated using Matlab and it is implemented using microcontroller 89C2051. The experimental results are compared with the simulation results.
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http://jee.ro/articles/WI1239622300W49e3229cad2cb.pdf
