I researched a master's thesis at the College of Engineering at the University of Basrah (Detection and compensation of voltage drop in lines

electrical power systems)

I dealt with the message presented by the student Adnan Romi Diwan

Implementation of the three basic parts that make up the dynamic voltage restorer circuit, the first part is the design of the AC voltage boost converter circuit using only one key, and the second part includes a proposal for a control circuit with a working principle based on finding a mathematical model, and the last part relied on the digital matrix method as a method Fast, simple and accurate to detect the problem of voltage drop that exceeds the proposed AC step-up transformer circuit by designing it using only one switch. However, it has the ability to amplify the source voltage more than three times its value. It provides us with a pure sine wave, and this is due to the use of a highly reliable output filter that depends on Finding a mathematical equation between the voltage gain of the AC step-up transformer circuit and the operating cycle time of the switch’s mug signal.

The aim of the thesis is to reduce the impact of the voltage drop problem, which is one of the most prominent power quality problems due to its direct impact on sensitive loads.

The thesis concluded the high accuracy and speed of this technique when combined with the dynamic voltage recovery circuit, as the measured results were in great agreement with the results obtained from the simulation as they show the same characteristics that were obtained from the theoretical study