||The feeder voltage fluctuation range is too large in the power system, and it may affect the user's electrical equipment performance and using life. Therefore, at home and abroad for feeder voltage fluctuation of the power system are standard, while experts and scholars have proposed many different solutions. In recent years, while the innovation and development of power electronic components, many scholars in the study of dynamic voltage restorer in order to achieve voltage regulation.|
In this thesis, the voltage regulator is a dual mode full bridge inverter through the transformer coupling in series with the feeder to achieve the regulation voltage. The dual mode full bridge inverter integrated Buck and Buck-Boost types, if the feeder voltage is too small in power system, the Buck type of compensation voltage; on the other hand, if the feeder voltage is too large in power system, the Buck-Boost type compensation voltage. The dual mode full bridge inverter maintains the load-side voltage within specifications to ensure that the user's electrical equipment is unaffected. Finally, proposed the available method of voltage regulation, verified by the laboratory prototype.