| Title |
A Study on an Algorithm Based on Sensitivity Method for Alleviating Overloads in Power Networks |
| Authors |
Byung-Ha Lee ; Jung-Myoung Baek |
| Keywords |
Alleviating Overloads ; Sensitivity Method ; Switching Algorithm ; Change Of The Branch Impedance |
| Abstract |
In this paper, a new algorithm based on sensitivity method for alleviating overloads in power networks is presented to find the switching branches effectively. By applying the new sensitivity of the line flow with respect to the change of the branch impedance, both on and off switchings for alleviating overloads in power networks are performed systematically at once and an effective scheme for drawing up a plan to alleviate overloads of the lines is presented through screening a large number of line switching cases easily. The ranking of switching branches is calculated according to the new switching algorithm based on sensitivity method and the switching of the ranked branches is performed in the order of ranking until overloads are eliminated. In order to show the effects of this algorithm, it is applied to a small scale power system of IEEE 39-bus test system. |