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Control of a battery supported dynamic voltage restorer

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6 Author(s)
V. K. Ramachandaramurthy ; Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK ; C. Fitzer ; A. Arulampalam ; C. Zhan
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Control of a dynamic voltage restorer (DVR) based on Space Vector PWM is described. The control algorithm is able to compensate for any type of voltage sag and uses a software phaselocked loop to track phase jumps during a fault. The control algorithm restores the depressed voltages to the same phase and magnitude as the nominal pre-sag voltages and then gradually tracks to the phase of the depressed voltages. Experimental results are shown to validate the control algorithm using a three-phase prototype with a power rating of 10 kVA.

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IEE Proceedings - Generation, Transmission and Distribution  (Volume:149 ,  Issue: 5 )