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P421.5 - Recommended Practice for Excitation System Models for Power System Stability Studies

Many of those who perform power system simulations require the complete and accurate representation of the particular excitation systems which are being applied. This document provides standardized models such that a free and understandable exchange of data can occur and model programmers can include all excitation systems within the standardized models.This document provides mathematical models for computer simulation studies of excitation systems and their associated controls for three phase synchronous generators. The equipment modeled includes the automatic voltage regulator as well as supplementary controls including reactive current compensation, power system stabilizers, and over and under excitation limiters. This revision is an update of the recommended practice and includes models of new devices which have become available since the previous revision.
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