Voltage dips compensator with energy storage and load soft switching function

This work is devoted to the development of a simulation model of a voltage drop compensation device containing an electric energy storage device. The proposed control algorithm makes it possible to minimize the shock moment and the current surge of the motor when transferring the load in the event of an emergency. The control system considered in the work implements an algorithm for automatic phase matching of the EMF of the motor and the voltage of the inverter, which allows soft switching function transferring the load from one power source to another. In this case, the electric voltage angle of the inverter is phase-consistent with the decrease EMF of the motor. The calculation of EMF with the allocation of amplitude, phase and frequency is carried out with the help of an observer developed by the authors. As a result, a workable simulation model of a high-speed automatic reserve input device with an energy storage device was obtained. In conclusion, the authors cite transients that confirm the operability of the proposed approaches.

Authors: A. P. Chervonenko, D. A. Kotin

Direction: Electrical Engineering

Keywords: voltage dips compensator, fast automatic transfer switching, load soft switching

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