Vector-Matrix Control over a Synchronous Compensator Using a Predicate Fuzzy Voltage Controller

Abstract

To improve the power supply of industrial enterprises, the efficient use of power lines is required. The active power transmitted through the line is necessary for operation of asynchronous motors, compensation of heat losses in transmission lines, etc. Reactive power is needed to produce electromagnetic fields in induction motors, saturated reactors, transformers, etc. Electricity transmission occurs with losses, which leads to additional economic costs. It is suggested to generate the required reactive power at a point of consumption using synchronous compensators, while unloading the transmission line. To stabilize the voltage at a load node, it is necessary to regulate the excitation current of a synchronous compensator to generate the required reactive (capacitive) power for compensation of the inductive (reactive) power. Stabilization of the voltage at a node excludes changes in the current in the transmission line due to a possible imbalance in the reactive power balance. It is suggested to control the excitation current of a synchronous compensator using a predicate fuzzy-voltage controller. This controller consists of a fuzzifier, i.e., a fuzzy inference unit with the implementation of the Mamdani algorithm, and a defuzzifier (area difference method).