Yu. N. Khizhnyakov – Dr.Sc. (Eng.), Professor, Department of Automatics and Telemechanics, Perm National Research Polytechnic University

S. A. Storozhev – Undergraduate Student, Department of Automatics and Telemechanics, Perm National Research Polytechnic University

E-mail: cepra5@mail.ru

Improving the power supply of an industrial company requires the efficient use of transmission lines. Active power transmitted over the line is necessary for the operation of asynchronous motors, to compensate for heat losses in the transmission line, etc. The reactive power transmitted over the line is necessary to create electromagnetic fields in asynchronous motors, saturated reactors, transformers, etc. The transmission of electricity occurs with losses, which leads to additional economic costs. The article proposes to generate the necessary reactive power in the field using synchronous compensators, while relieving the transmission line from reactive power. To stabilize the voltage in the load node, it is necessary to adjust the excitation current of the synchronous compensator in order to generate the necessary reactive (capacitive) power to compensate for the inductive (reactive) power. Stabilization of the voltage in the node eliminates the change in current in the transmission line due to possible disruption of the balance of reactive power. Since there is no mathematical description of the complex load, it is proposed to adjust the excitation current of the synchronous compensator with using a predicate fuzzy voltage regulator. The structure of this regulator includes a fuzzifier, a fuzzy output block with the implementation of the Mamdani algorithm and a defuzzifier (the area difference method). Application of a synchronous compensator is an example of the use of modern energy-saving technologies.

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