An Optimal Load Dispatch Program Using a Fast Power Flow Technique

ABSTRACT

This paper presents a new technique of Economic Dispatch for allocating generation in a power system. Penalty factors associated with generating units are calculated from a particular eigenvector of the transposed Jacobian matrix which is obtained while solving the load flow problem using a modified version of the fast power flow method developed earlier. The evaluation of the required eigenvector is simple and straightforward as the order of the Jacobian matrix is equal to the number of voltage controlled busbars in the system. The optimal allocation of each generating unit for the given demand on the system is obtained by solving the co-ordination equations along with load flow problem. The technique is found to be fast, reliable and suitable for on-line implementation.