Принцип узгодженого регулювання координат електроприводу в режимі генераторного гальмування
Принцип узгодженого регулювання координат електроприводу в режимі генераторного гальмування
В.І. Теряєв, С.О. Бур’ян, В.П. Стяжкін
The problem solved in this research is to expand the functionality of the generator and the motor in the electric braking mode. The problem is solved by an automatic control of the coordinates of the electric machine in the generator mode. A feature of the proposed control method is that one or more coordinates of generator or motor in electric braking mode are forcibly set by an external energy source, and the goal of coordinated control of other variables of an electric machine is to provide a given law for converting mechanical energy into electrical or an algorithm for the movement of an executive object of a working machine.
The article presents example of the synthesis of regulated electric drive control algorithm based on the principle of coordinated control of variables.
The example concerns the inverted mode of operation of a pumping unit of a hydro storage power station. According to the criterion of constant output power under conditions of changing the liquid level, an algorithm for frequency control of an asynchronous machine is synthesized, which is realized by adjusting the calculated idling speed of the engine, the rotor of which rotates an external motion source with a speed, that can generally change according to an random law. The task of the control algorithm is to maintain a constant power generation energy, regardless of the actual speed of rotation of the rotor.
