Open AccessStudy of the transients with the loss of field of the synchronous generator in the industrial electric power station
Author(s) -
A.P. Sokolov,
Olga V. Gazizova,
Yu. N. Kondrashova
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/666/1/012033
Subject(s) - asynchronous communication , generator (circuit theory) , permanent magnet synchronous generator , reliability (semiconductor) , power (physics) , electricity generation , automotive engineering , electric power system , computer science , induction generator , steam turbine , field (mathematics) , electrical engineering , power station , engineering , control engineering , voltage , mechanical engineering , telecommunications , physics , mathematics , quantum mechanics , pure mathematics
One of the main trends of industrial power engineering today is the need to improve the reliability of power supply of responsible consumers along with the increase of competitiveness of products by reducing cost. These requirements are ensured by the widespread introduction of distributed generation sources. These include mini combined heat and power unit, gas turbine, gas engine and combined-cycle gas turbine power plants. At the same time, such changes significantly complicate both the power supply system and possible modes of operation. One of the possible emergency modes in such networks is the loss of field of the synchronous generator. The admissibility of such a regime is specified by regulatory documents. In such a case this generator goes into asynchronous mode and consumes reactive power from the network. The aim of this work is to study the operation of a synchronous generator for a certain time in the asynchronous mode as a result of a loss of field and to develop measures to ensure the admissibility of such a mode in a complex looped network. An algorithm has been developed for calculating the electromechanical transients of a synchronous generator, taking into account the loss of machine field. Studies are carried out for various operational modes of an industrial power plant, taking into account the initial load of the generator using the KATRAN software package. The calculation results allow determining the generator load with active power, at which the synchronous generator can operate in the asynchronous mode without excitation.