A Software Tool for Available Transfer Capability Teaching Purposes

Abstract

This paper presents an educational software tool with a user-friendly interface, which can be used for evaluation of available transfer capability (ATC). The software was developed using the MATLAB 1-2 software package. The software is designed for engineers who are involved in trading in electrical energy and for students (undergraduate and Master's) of Electrical Engineering who could, by using the software, gain a better insight into the theoretical knowledge and solve some practical engineering problems. ATC model limitations include the usual d.c. load fl ow inherent limitations as well as line thermal limits, prevalent in the literature on ATC. The structure and software capabilities are presented within the example of an ATC sensitivity study on a fi ve node/seven line transmission network, used for zonal market activities tests.

Evolutionary Algorithm for Calculating Available Transfer Capability

“…In [3], ATC is calculated using the PTDF's which are obtained with the corresponding elements of reactance matrix. In [4], the PTDF's are obtained with symbolic calculations. Using any of these approaches, the results are the same.…”

“…With SADCLF program whose detailed description is presented in [10], and the application in [11] and [4], the equations of the line power flow in symbolic form are generated and have the following form…”

“…The techniques used to obtain the ATC can be classified as one step [2][3][4][5][6] and iterative [7][8][9] method. An ac-PTDF method for calculation of ATC is proposed in [5].…”