изменения параметров нагрузки. Разработано и исследовано микропроцессорное устройство идентификации, диагностики и управления тиристорным преобразователями частоты.
Проведены экспериментальные исследования на аналого-дискретной модели и в пакете программного моделирования CASPOC 2003, которые подтверждают правильность разработанных в работе методов и алгоритмов.
Ключевые слова: полупроводниковый преобразователь частоты, автономный инвертор тока, идентификация параметров, диагностика, микропроцессорная система управления прогнозного типа, алгоритм.
Verzhanovskaya M.R. Identification of parameters of the power circuit and load in frequency converters. - Manuscript.
Thesis for candidate degree of technical science of specialty 05.09.12 – Semiconductor converter of electric energy – National Technical University “Kharkov Polytechnic Institute” _Kharkov – 2005.
The dissertation is devoted to development of methods of identification of parameters of the power circuit and load in frequency converters for control and diagnostics.
Method of identification of parameters of the power circuit and load of the semi-conductor frequency converter with the use of a method of multiple derivatives and its areas of application are developed in the work. New equations for identification of parameters by a method of mapping of transients on a complex plane were obtained. An effective from the point of simplicity of calculation equations and computational expenses aigoritm of identification of parameters by means of the vector diagram of the system “inductor – object-to-be-heated” was developed. Emergency operation of semi-conductor converters was analyzed and algorithms of functional diagnosing of malfunctions of the power circuit and load of semiconductor frequency converters for induction heating were found in the work. The generalized algorithm of prognosis control with identification of parameters of the power circuit and load and localization of malfunctions with the depth up to one element which unite procedures of the prognosis and correction was developed for the first time.
Key words: semiconductor frequency converter, autonomous current-source inverter, identification of parameters, diagnostics, microprocessor control system of prognosis type, algorithm.
Відповідальний за випуск к.т.н., доц. Тимченко М.О.
Підп. до друку 7.11.2005 р. Формат видання 145х215.
Формат паперу 60х90/16. Папір офсетний. Друк – ризографія.
Обсяг 0,9 авт. арк. Наклад 100 прим. Зам. № 291.
Видавничий цент НТУ “ХПІ”. Свідоцтво ДК № 116 від 10.07.2000 р.
Друкарня НТУ “ХПІ”, 61002, Харків, вул. Фрунзе, 21