This article uses a dynamic voltage restorer to tackle wide range of power quality issues, such as drooping and swelling, spikes, distortions, so on. The proportional controller, integrated controller (PI), adaptive neuro-fuzzy inference system (ANFIS) are proposed (DVR) controllers. control strategy's goal is employ an injection transformer mitigate for the needed keep load fixed. settings PI ...

The Dynamic Voltage Restorer (DVR) is one of the most efficient and effective custom power devices in protecting sensitive equipment against voltage sag harmonics due to; lower cost, smaller size dynamic response. inverter core DVR it directly affects performance DVR, incorrect injection or delay process would be dangerous to loads. major functions controller are, detection disturbances events ...

Recently, there was a great focus on integrating renewable energy sources (RESs) into electrical power systems (hybrid systems) due to their many environmental and economic advantages. The output of most these RESs is DC; some electronic devices, including inverters, must be used integrate the grid. Any maloperation, faults, or improper control in devices will enormously affect hybrid systems’ ...

This paper considers the reference signal generation problem for multi-functional operation of single-phase dynamic voltage restorers. For this purpose, a quasi type-1 phase-locked loop (QT1-PLL) is proposed. The pre-loop filter part PLL composed frequency-fixed delayed cancellation method and two-stage all-pass filter. Thanks to nature, easy implement can provide rejection any measurement offs...

This paper investigates the power quality problems which occur frequently in supply and suggests a method to mitigate by implementation of UPQC. P-Q generally concern with voltage sags/swells harmonic currents. Custom Power (CP) devices that these have gained more attention recent decades. UPQC is Designed, modelled setup experimentally sag/swells currents three phase systems. consists Dynamic ...