Volume 8, Issue 3, May 2019, Page: 77-85
Effect of Transformer Parameters and Line Reactor on Power Flows in High-Voltage Systems
Ngo Duc Minh, Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen, Viet Nam
Le Tien Phong, Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen, Viet Nam
Received: Jun. 14, 2019;       Accepted: Jul. 11, 2019;       Published: Jul. 24, 2019
DOI: 10.11648/j.epes.20190803.12      View  117      Downloads  43
Abstract
This paper focuses on the effect of transformer parameters and a line reactor on distribution of power flows in a high-voltage substation and transmission lines. Four case studies that have different values of transformer parameters including rated power, short-circuit impedance and reactance/resistance ratio are supposed in this research. Basing on power flows on transformers in case of the parallel operation, load factor of each transformer and operating parameters are considered in above case studies. Moreover, a line reactor is proposed in this paper to regulate power flows in a system having two power sources. Four operating modes of the proposed line reactor are defined by changing on/off states of switches in this device to modify the value of impedance. The effect of the line reactor on power received from sources and power flows on transmission lines is evaluated in its all modes. Research results are carried out by the ETAP 16.0 software and present high accuracy and reliability for the proposed problems. Research contributions help dispatchers understand the essence of power transmission process, solve real problems and give out effective solutions to operate high-voltage systems.
Keywords
Line Reactor, Parallel Operation, Transformer Parameter, ETAP Software, Power Flow, Voltage Angle, Voltage Module
To cite this article
Ngo Duc Minh, Le Tien Phong, Effect of Transformer Parameters and Line Reactor on Power Flows in High-Voltage Systems, American Journal of Electrical Power and Energy Systems. Vol. 8, No. 3, 2019, pp. 77-85. doi: 10.11648/j.epes.20190803.12
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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