Interfacing Methods for Electromagnetic Transient Simulation: New Possibilities for Analysis and Design

This chapter provides an overview of various interfacing methods and procedures for connecting an electromagnetic transient (EMT) simulator with an external algorithm. It reviews the particular possibilities for using interfacing to create a design-ready EMT simulator. The method used for interfacing electro magnetic transient program (EMTP)-type tools with other algorithms and the level of complexity involved in doing so depend on the problem that it aims to solve. Once an algorithm is developed or selected for interfacing with a simulation tool, one need to decide where to implement the algorithm. In addition to the main high-power electric circuitry, modern power equipment often contains advanced control blocks, digital processors, nonlinear elements and so on. The chapter explains an interface made between a transient simulator (PSCAD/EMTDC) and Matlab/ Simulink. It identifies the parameter selection and uncertainty analysis as the major steps involved in a generic power system design problem.