@inproceedings{0d32abdae7354f6b82053a2ca295503c,
title = "A Power Sharing Method Based on Modified Droop Control for Modular UPS",
abstract = "An average power sharing control strategy for parallel operation of voltage source inverter (VSI) based modular Uninterruptible Power Systems (UPSs) is proposed in this paper. The presented method is based on a modified droop control. The proposed method conquers the drawback of conventional droop plus virtual impedance control, and at the same time some challenges in the real applications have been considered. Such as the mismatch of output impedance of the parallel modules, the different calibration accuracy of the sample circuit, and the offset of the voltage reference from the control unit. Simulation has been presented in order to verify the effectiveness of the proposed control methodology under these three different conditions. The simulation results demonstrate that a better power sharing performance is obtained and successfully prevent of negative power which can protect the DC bus.",
keywords = "Droop control, Virtual impedance, Modular uninteruptible power system, Power sharinig, Circulating current",
author = "Baoze Wei and Wenzhao Liu and Guerrero, {Josep M.} and Quintero, {Juan Carlos Vasquez}",
year = "2017",
month = oct,
doi = "10.1109/IECON.2017.8216835",
language = "English",
series = "Proceedings of the Annual Conference of the IEEE Industrial Electronics Society",
publisher = "IEEE Press",
pages = "4839--4844",
booktitle = "Proceedings of 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017",
note = "43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 ; Conference date: 29-10-2017 Through 01-11-2017",
}