Power arrival evaluation of bulk system including networkconstraints based on linear programming approach

Several useful support tools of power system scheduling and planning are provided. A fast method is proposed and used to evaluate the generating units and transmission capability of a power system and calculate the optimal reserve of each demand side, based on a two-step linear programming technique. A new support tool for power system planning is described by using the parametric linear programming. This support tool quickly gives an optimal reserve curve of the system and also provides some diagnosis information of the systems weak location for the expansion planning and maintenance scheduling of transmission lines or generating units. The outages of generators and transmission lines are considered, and a method of estimating the reliability (LOLP) of a multiarea power system by making use of linear programming is presented. Several examples are used to verify the proposed methodology and illustrate the application. The results show that the approaches are simple, fast, and efficient support tools for generation and transmission capability evaluation or for the contingency testing of a power system