CASPIAN JOURNAL

MANAGEMENT AND HIGH TECHNOLOGIES

Development of multifunctional analyzer of electricity quality indicators for control of autonomous electrical supply systems

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Asiev A.T. Development of multifunctional analyzer of electricity quality indicators for control of autonomous electrical supply systems // Caspian journal : management and high technologies. — 2017. — №2. — pp. 155-170.

Asiev A.T. - Cand. Sci. (Engineering), Head of the Department of Science, Kyrgyz State Technical University ater I. Razzakov, 66 Chingiz Aytmatov Ave., Bishkek, 720044, Kyrgyz Republic, asievat@gmail.com

This article is devoted to the development and application of a multifunctional analyzer of quality indicators of electrical power to control autonomous power supply systems. The author considers the necessary requirements for the quality of electrical power and measures aimed at reaching compliance with these requirements specified in GOST 32144-2013. The article defines equipment that creates electromagnetic interference and adversely affects the quality of electric power in an autonomous power supply system. It is determined that autonomous power supply systems and alternating voltage electric aggregates have the following electric power quality indicators: steady voltage deviation under symmetrical load change, steady voltage deviation under constant symmetrical load, transient voltage deviation at reset of symmetrical load; voltage recovery time at reset of symmetrical load; a steady frequency deviation with an unchanged symmetrical load; transient frequency deviation at reset of symmetrical load; frequency recovery time at reset of symmetrical load; amplitude modulation factor at modulating frequency of 400Hz under symmetrical load voltage waveform distortion factor; unbalance factor of phase-to-phase voltages with an unsymmetrical phase load. The tasks are set for monitoring quality indicators of electrical power. The paper specifies new standards that regulate methods for measuring quality of electrical power. The author chooses an autonomous power supply system that can be implemented in remote settlements as an object for the development of a multifunctional analyzer of electric power quality indicators. Some technical properties of modern digital analyzers are described. The author’s design is characterized.

Key words: автономные источники электроснабжения, электроэнергия, показатели качества электрической энергии, методы анализа, математические методы, сплайн-интерполяция, цифровая фильтрация, аппаратные решения, программный комплекс, интерфейс с пользователем, autonom