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Three-Phase Line-Interactive Dynamic Voltage Restorer with · · · 203 JPE 10-2-14 Three-Phase Line-Interactive Dynamic Voltage Restorer with a New Sag Detection Algorithm
| Content Provider | CiteSeerX |
|---|---|
| Abstract | This paper describes the development of a three-phase line-interactive DVR with a new sag detection algorithm. The developed detection algorithm has a hybrid structure composed of an instantaneous detector and RMS-variation detectors. The source voltage passes through the sliding-window DFT and RMS calculator, and the instantaneous sag detector. If an instantaneous sag is detected, the RMS variation detector-1 is selected to calculate the RMS variation. The RMS variation detector-2 is selected when the instantaneous sag occurs under the operation of the RMS variation detector-1. The feasibility of the proposed algorithm is verified through computer simulations and experimental work with a prototype of a line-interactive DVR with a 3kVA rating. The line-interactive DVR with the proposed algorithm can compensate for an input voltage sag or an interruption within a 2ms delay. The developed DVR can effectively compensate for a voltage sag or interruption in sensitive loads, such as computers, communications equipment, and automation equipment. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | New Sag Detection Algorithm Three-phase Line-interactive Dynamic Voltage Restorer Rms Variation Detector-1 Instantaneous Sag Line-interactive Dvr Developed Detection Algorithm Rms Variation Detector-2 Automation Equipment Sliding-window Dft Instantaneous Detector Instantaneous Sag Detector Three-phase Line-interactive Dvr Rms Variation Experimental Work Communication Equipment Computer Simulation Input Voltage Sag Voltage Sag Source Voltage Rms-variation Detector Hybrid Structure Sensitive Load Rms Calculator Developed Dvr |
| Content Type | Text |
| Resource Type | Article |
