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Article citations


(2013) Nord Pool Spot, Elspot Prices (EUR/MWh).

has been cited by the following article:

  • TITLE: Implementation of Dynamic Line Rating in a Sub-Transmission System for Wind Power Integration

    AUTHORS: Saifal Talpur, Carl Johan Wallnerstrom, Patrik Hilber, Christer Flood

    KEYWORDS: Overhead Conductor, Static and Dynamic Ampacities, Real-Time Weather Conditions, Static and Dynamic Line Rating Techniques, Wind Power Integration, Regional Grid, Line Current. Conductor Temperature, Wind Power Economics, Dynamic Line Rating Economics

    JOURNAL NAME: Smart Grid and Renewable Energy, Vol.6 No.8, August 14, 2015

    ABSTRACT: Based on conventional static line rating method, the actual current carrying capability of overhead conductors cannot be judged. Due to continuous increment in electricity demand and the difficulties associated with new line constructions, the overhead lines are therefore required to be rated based on a method that should establish their real-time capability in terms of electricity transmission. The method used to determine the real-time ampacity of overhead conductors not only can enhance their transmission capacity but can also help in allowing excessive renewable generation in the electricity network. In this research work, the issues related to analyzing an impact of wind power on periodical loading of overhead line as well as finding its static and dynamic ampacities with line current are investigated in detail. Moreover, the investigation related to finding a suitable location for the construction of a 60 MW wind farm is taken on board. Thereafter, the wind park is integrated with a regional grid, owned by Fortum Distribution AB. In addition to that, the electricity generated from the wind park is also calculated in this project. Later on, the work is devoted to finding the static and dynamic line ratings for “VL3” overhead conductor by using IEEE-738-2006 standard. Furthermore, the project also deals with finding the line current and making its comparison with maximum capacity of overhead conductor (VL3) for loading it in such a way that no any violation of safe ground clearance requirements is observed at all. Besides, the line current, knowing the conductor temperature when it transmits the required electricity in the presence of wind power generation is also an important factor to be taken into consideration. Therefore, based on real-time ambient conditions with actual line loading and with the help of IEEE-738-2006 standard, the conductor temperature is also calculated in this project. At the end, an economic analysis is performed to evaluate the financial advantages related to applying the dynamic line ratings approach in place of traditional static line ratings technique across an overhead conductor (VL3) and to know how much beneficial it is to temporarily postpone the rebuilding and/or construction of a new transmission line. Furthermore, an economic analysis related to wind power system is taken into consideration as well to get familiar with the costs related to building and connecting a 60 MW wind farm with the regional grid.