ALSHAIKH Y. Design of objects and management processes by autonomous power-stations in transient behaviors of work of powerful consumers

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0416U001088

Applicant for

Specialization

  • 05.13.07 - Автоматизація процесів керування

28-11-2015

Specialized Academic Board

Д 67.052.01

Essay

Object - autonomous automated control systems for judicial electrical power installations with diesel-generator units. The purpose - development of methodology of modeling of objects and processes in autonomous electrical power systems which work in the dynamic modes and realization of a model attuning of elements of systems of automatic equipment for providing necessary indicators of the electric power. Methods - methods of the theory of automatic control and management, including the LAChH method, methods of an optimum attuning of regulators, methods of discrete systems of automatic control, a method of fuzzy logic, methods of modeling of electrical power systems in Matlab-Simulink, methodology of pilot studies by an ostsillografirovaniye with the subsequent processing of pilot studies with use of methodology of an assessment of errors of results of experiments. For the first time the developed simplified dynamic model of the asynchronous engine for modeling in Matlab-Simulink of its starting modes taking into account active and jet components of its starting current, transition processes in which adequate to processes of the real car with a margin error which doesn't exceed 15-20%; the created simplified dynamic model of the diesel generator for modeling of processes of switching of powerful consumers (asynchronous engines) which allows to reduce in tens times calculation of time of transition processes and what qualitatively and quantitatively answers processes in real systems of autonomous power industry; the developed and reasonable technology of modeling of process of synchronization of synchronous generators, and also the way of synchronization of synchronous generators which provides minimum possible values of currents of alignment on condition of considerable fluctuations of frequency of turns of the driving engine is offered. Gained further development: method and algorithm of synchronization of synchronous generators at fluctuations of turns of the driving engine of the generator which is connected in autonomous electrical power system; methodology of modeling of operating modes of diesel-generator units with digital control systems taking into account temporary delays by transfer of information signals. Methods of adjustment of coefficients of regulators and structure of algorithms for systems of excitement of synchronous generators and driving engines are improved. Scope: systems of automatic equipment for autonomous electrical power systems.

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