Pinchuk O. Influence of power voltage asymmetry on thermal performance of asynchronous motors in continuous and recursive short-time modes

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0408U003720

Thesis Registration Form

0408U003720.pdf

Applicant for

Pinchuk Olga Georgievna

Specialization

05.09.01 - Електричні машини і апарати

Date of defense

19-06-2008

Specialized Academic Board

Д11.052.02

Essay

The subject of research are the operating regimes of asynchronous motors (AM) under asymmetrical power voltage. The purpose of the thesis is estimation of thermal conditions of AM under different parameters of asymmetrical power voltage. The methods of research are the method of symmetrical components with use of differential equation system in phase coordinates of stator and rotor and the equivalent thermal schemes method. The scientific importance consist in further development of abstract theorems of estimation of thermal conditions of AM under asymmetrical power voltage at the expense of taking the shearing angle between symmetrical components of voltages of direct and reverse sequences into account. The practical importance consist in working out of the strategy of estimation of thermal conditions of AM the most unfavorable shearing angle between voltage of direct and reverse sequences. The strategy is applied in the Donetsk State Scientific Research, Planning Design and Experimental Institute ofcomprehensive mechanization of mines "Dongiprouglemash", in the public corporation "Donetsk power plant". The branch is electromechanics.

Thesis supervisor

Fedorov Mihail Mihailovich

Official opponents

Лущик В'ячеслав Данилович
Конохов Микола Миколайович

Files

Aref--Aref.doc

dis--0_Титул.doc

dis--10_Приложение А.doc

dis--11_Приложение Б.doc

dis--12_Приложение В.doc

dis--13_Приложение Д.doc

dis--14_Приложение Е.doc

dis--1_Содержание.doc

dis--2_Перечень условных обозначений.doc

dis--3_Введение.doc

dis--4_Глава1.doc

dis--5_Глава2.doc

dis--6_Глава3.doc

dis--7_Глава4.doc

dis--8_Глава 5.doc

dis--9_Список использованных источников.doc

Similar theses

0421U103941

Dehtiarenko Oleksandr O.

Improving the diagnostics of laminated stator cores of synchronous motors

0421U103747

Tsyhanov Oleksandr М.

Structural synthesis and parametric optimization of transformers and reactors with laminated magnetic circuits

0521U101558

Prus Viacheslav V.

Aging of electric machines during long operation and repairs. Theory and practice.

0421U101810

Melkonova Inna V

Disc Magnetic Separator with Improved Unloading Conditions

0421U101386

Somka Oleksandr Oleksandrovich

Determination and forecasting of reliability of induction motors with long mean time between failures