@inproceedings{4518b2c0ed0b4166b60d5bda59ac57ee,
title = "An improved in-line uninterruptible power supply system",
abstract = "This paper presents an improved in-line uninterruptible power supply system, which has voltage sag compensation and power factor improvement. The system employs a voltage-source voltage-controlled converter with battery storage. The converter voltage is synchronised to the grid voltage and a link inductor is inserted between the converter and the grid. The load is connected directly to the converter output voltage. The magnitude of the converter voltage is maintained constant through the sinusoidal PWM signal that provides stabilisation from any voltage sags and large fluctuation of the mains voltage. The power factor correction is controlled through the power flow of the system. The inverter is maintained to supply the reactive power to the load, therefore, the grid supplies the active power. Results from simulation using PSCAD/EMTDC and laboratory tests are included.",
keywords = "Batteries, Inductors, Power factor correction, Power quality, Power supplies, Pulse width modulation, Pulse width modulation converters, Reactive power, Uninterruptible power systems, Voltage fluctuations",
author = "M. Ashari and Nayar, \{C. V.\} and S. Islam",
note = "Publisher Copyright: {\textcopyright} 2000 IEEE.; 9th International Conference on Harmonics and Quality of Power, ICHQP 2000 ; Conference date: 01-10-2000 Through 04-10-2000",
year = "2000",
doi = "10.1109/ICHQP.2000.897738",
language = "English",
series = "Proceedings of International Conference on Harmonics and Quality of Power, ICHQP",
publisher = "IEEE Computer Society",
pages = "548--553",
editor = "Alexander Domijan",
booktitle = "ICHQP 2000 - 9th International Conference on Harmonics and Quality of Power, Proceedings",
address = "United States",
}