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Grigorash O. V.; Korzenkov P. G.; Popuchieva M. A. (2015)
Publisher: Kuban State Agrarian University
Journal: Polythematic Online Scientific Journal of Kuban State Agrarian University
Languages: Russian
Types: Article
Subjects: SYNCHRONOUS GENERATOR, VOLTAGE REGULATOR, CURRENT FREQUENCY STABILIZERS, DIRECT FREQUENCY CONVERTER, TRANSFORMER WITH A ROTATING MAGNETIC FIELD, General Works, A
Synchronous generators are the primary source of electrical power autonomous electrosupply systems, including backup systems. They are also used in a structure of rotating electricity converters and are widely used in renewable energy as part of wind power plants of small, mini and micro hydroelectric plants. Increasing the speed and the accuracy of the system of the voltage regulation of synchronous generators is possible due to the development of combined systems containing more stabilizers. The article illustrates the functional schemes of circuit voltage stabilizers and frequency synchronous generators (with electromagnetic excitation and permanent magnet excitation) and describes the features of their work, including two and three-aggregate rotating converters of electricity used in uninterruptible power supply systems. To improve the technical characteristics of the system of stabilization we have proposed functional solutions for stabilizers of synchronous generators made on the base of direct frequency converters and using a transformer with a rotating magnetic field. To improve the reliability of and to improve the operational characteristics of the autonomous independent sources of electricity we suggest creating the main functional blocks and the elements of the stabilization system in a modular way. The functional circuit solutions of voltage regulators of synchronous generators and the characteristics of their work considered in the article, are able to improve the efficiency of pre-design work in the development of new technical solutions for stabilizing the voltage and the frequency in synchronous generators of electrosupply autonomous systems
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