Abstract
The grid connected distribution systems are providing the energy to the load from the grid. During the period of energy transmission, the issues are occurred on the power quality in transmission line. In the power system, the power quality issues are occurred due to the following issues as instability of the system, voltage sag, harmonic distortion, over voltage, unbalanced voltage etc. In this paper, the power quality improvement is designed using the inverter which compensates the voltage and current when the fault occurred. This inverter is used to inject the power using a DC source. This improvement of power quality is controlled by the hysteresis controller with fuzzy logic control. The feedback is given to the controller which reduces the error from the system and provides the control variables to the inverter terms of switching gate signals.
Highlights
In distribution side voltage level, the generation of electrical power is achieved by the micro grids, distributed energy sources that integrated in small scale
In between the operation of distribution system and micro sources and it provide can be security, better flexibility and it is achieved by the power electronics connection and the occurrence power quality problems in distribution system due to the presents of unbalanced load as well as non linear loads
The power quality issue of sag voltage is improved during the period of fault occurred or the external faults and this compensation is done by using a voltage source inverter
Summary
In distribution side voltage level, the generation of electrical power is achieved by the micro grids, distributed energy sources that integrated in small scale. In between the operation of distribution system and micro sources and it provide can be security, better flexibility and it is achieved by the power electronics connection and the occurrence power quality problems in distribution system due to the presents of unbalanced load as well as non linear loads. In day to day life the growth of power devices to control and improve the quality of power is increased. The synchronous static compensator is an interesting power compensation device that realized by the connection of voltage source inverter that in shunt. To control the reactive power supply in micro grids the custom device is used which is called distribution STATCOM (DSTATCOM).
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