ONE METHOD OF INCREASING THE SPEED OF A DIGITAL DIFFERENTIAL ANALYZER WHEN SIMULATING COMPLEX POWER SYSTEMS (OB ODNOM SLOSOBE POVYSHENIYA BYSTRODEISTVIYA TSIFROVOGO DIFFERENTSIALNOGO ANALIZATORA PRI MODELIROVANII SLOZHNYKH ENERGOSISTEM),
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The remodeling of a sequential digital differential analyzer DDA is described which enhances the DDA operating speed and its suitability for studying electromechanical transients in power-supply systems the remodeling requires very few additional devices. A system of algebraic and differential equations is considered which describes the complicated transient processes arising in a power system upon a sudden disturbance with an allowance for generator emf variations. The transient events are subdivided into 4 stages, and the calculating techniques for each stage are suggested the disturbance may be represented by a short-circuit, automatic reclosing, cutting-off a stepped-out generator, etc. The overall speed of the DDA operation rises by 1.2 - 1.9 times depending on the type of problem.
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