Dynamic Voltage Restorer to Maintain Constant Voltage at Load

Abstract

This paper is used for decrease the power quality problems in electrical distribution. Sometimes potential is not stable so it causes potential disturbances in power system then it produces harmonics in the system. Therefore, this gained with a concept called DVR. This controls the potential increase and decrease the distribution. Because of these problems, there is a possibility to draw more power and reduction in the devices. DVR saves the power with potential injections which cause effect phase and also the shapes of the input waveform. In this project, we are using a lead acid battery device as energy storage element and also PWM process useful for trigger the circuits. It will be operated in unsymmetrical potential conditions and remains ideal in normal conditions. It will set the potential into system at a rated value of the quantity and cycles per second. So that it is regained the receiving side potential to accurate range. This process is used to compare the decrease in potential, increase in potential and power frequencies in the system. To decreases economic problems this project is helpful. If the potential is highly changes, the machine will get destroy it can have a severe economic problem on residential areas and industries. Which is help to improve quality of powering issues in the future power system operations.