A Synthesis Method for One-Port and Multi-Port Equivalent Networks for Analysis of Power System Transients

Equivalent networks can be used in power system simulation to reduce simulation equipment or computer time and memory space. In this paper, an iterative method is developed for synthesizing one-port equivalent networks by the removal of poles corresponding to resonances of the driving-point impedance or admittance function. This results in networks formed by the series or parallel connection of modular RLC circuits. The RLC values are calculated using a parameter-optimization technique. Multi-port equivalent networks are first configured as π or T forme composed of one-port network branches and the latters are then synthesized by the proposed method for one-port equivalent networks.