The Research Of Power Flow Calculation With Fast Newton Method

Power flow calculation is an important part of power system analysis, including solving node voltage amplitude and phase of each line and active and reactive power flow, the current system for electric power planning, economic operation and control, and the future development plan is very important. And Newton- Ralph monson flow algorithm is the most widely used in power system, a method of calculation convergence is good, wide network of application. For the study of the theory of the Newton-Ralph monson flow algorithm has both theoretical significance and has practical application value. Newton's method flow calculation obvious advantages, memory footprint and in each iteration time is closely related to the program design. This topic is focus on this, considering the admittance matrix Y matrix is extremely sparse, rapid storage, storage only the non-zero elements; Considering the admittance matrix Y array and Jacobian matrix J array both sparse and non-zero element structure similar, on the basis of the characteristics of rapid formation of jacobian matrix J array; Use of Jacobian matrix sparse and its relationship between its elements, quick to elimination and back to the generation before calculation; Node voltage in the form of a rectangular coordinates and polar coordinates, respectively, comparing the computing performance of different methods.