Accession Number : AD0671134

Title :   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),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Alizade,P. G.

Report Date : 14 JUL 1967

Pagination or Media Count : 16

Abstract : 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.

Descriptors :   (*DIGITAL DIFFERENTIAL ANALYZERS, TRANSIENTS), GENERATORS, TIME, DIFFERENTIAL EQUATIONS, PROBLEM SOLVING, INTEGRATORS(COMPUTERS), ITERATIONS, MODIFICATION KITS, USSR

Subject Categories : Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE