A Discrete Model Approach to Power System Transient Performance Simulation

A novel discrete model approach is presented for the integration of the differential equations involved in power system transient performance simulation. The models can be derived directly and analytically from the differential equations of the system dynamic elements, and the approach offers more precise and accurate solution than methods such as the implicit trapezoidal. Results obtained via the discrete model approach are compared with those using the implicit trapezoidal method and itemized breakdowns of the computational demands of power system simulation calculations are analyzed along with limitations on numerical stability.