Next Article in Journal
Perturb and Observe Control for an Embedded Point Pivoted Absorber
Next Article in Special Issue
Hybrid Short Term Wind Speed Forecasting Using Variational Mode Decomposition and a Weighted Regularized Extreme Learning Machine
Previous Article in Journal
Coil Design for High Misalignment Tolerant Inductive Power Transfer System for EV Charging
Previous Article in Special Issue
New Requirements of the Voltage/VAR Function for Smart Inverter in Distributed Generation Control
Open AccessArticle

Analysis of Power Network for Line Reactance Variation to Improve Total Transmission Capacity

Energy Department, Complex Energy Systems, Austrian Institute of Technology GmbH, Department Electrical Sustainable Energy, Faculty Electrical Engineering, 1220 Wien, Austria
Faculty of Electrical Engineering and IT, Technical University Vienna, 1040 Wien, Austria
Department Electrical Sustainable Energy Faculty, Electrical Engineering, Mathematics and Computer Science, TU Delft, 2628 CD Delft, The Netherlands
Author to whom correspondence should be addressed.
Academic Editor: Ying-Yi Hong
Energies 2016, 9(11), 936;
Received: 25 July 2016 / Revised: 29 September 2016 / Accepted: 2 November 2016 / Published: 10 November 2016
(This article belongs to the Special Issue Electric Power Systems Research 2017)
The increasing growth in power demand and the penetration of renewable distributed generations in competitive electricity market demands large and flexible capacity from the transmission grid to reduce transmission bottlenecks. The bottlenecks cause transmission congestion, reliability problems, restrict competition, and limit the maximum dispatch of low cost generations in the network. The electricity system requires efficient utilization of the current transmission capability to improve the Available Transfer Capability (ATC). To improve the ATC, power flow among the lines can be managed by using Flexible AC Transmission System (FACTS) devices as power flow controllers, which alter the parameters of power lines. It is important to place FACTS devices on suitable lines to vary the reactance for improving Total Transmission Capacity (TTC) of the network and provide flexibility in the power flow. In this paper a transmission network is analyzed based on line parameters variation to improve TTC of the interconnected system. Lines are selected for placing FACTS devices based on real power flow Performance Index (PI) sensitivity factors. TTC is computed using the Repeated Power Flow (RPF) method using the constraints of lines thermal limits, bus voltage limits and generator limits. The reactance of suitable lines, selected on the basis of PI sensitivity factors are changed to divert the power flow to other lines with enough transfer capacity available. The improvement of TTC using line reactance variation is demonstrated with three IEEE test systems with multi-area networks. The results show the variation of the selected lines’ reactance in improving TTC for all the test networks with defined contingency cases. View Full-Text
Keywords: Available Transfer Capability (ATC); PTDF; FACTS; real power flow Performance Index sensitivity Available Transfer Capability (ATC); PTDF; FACTS; real power flow Performance Index sensitivity
Show Figures

Figure 1

MDPI and ACS Style

Ullah, I.; Gawlik, W.; Palensky, P. Analysis of Power Network for Line Reactance Variation to Improve Total Transmission Capacity. Energies 2016, 9, 936.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop