Impact of DLC on Distribution System Reliability

摘要

The implement of direct load control can reduce power system load at peak times by restricting the given load at the required time straightforwardly. These actions also have a positive influence on the distribution system reliability along with the increase of load rate. Thus, in order to make further research on the impact of DLC on distribution system reliability, a mathematical model of DLC on the basis of linear programming method should be set up firstly. Then, according to the change of load rate, establishing a cubic spline interpolation function represents the reliability index changing with load rate. Finally, the validity of above model and the method are studied through numerical tests on modified RBTS BUS 6 test system. As the result shows, the effectively direct load control can improve the distribution system reliability.