SU74180A1 - Synchronized asynchronous motor - Google Patents

Description

The invention relates to synchronous asynchronous motors, in which the rotor winding is connected into a star and is excited by a sulfur: electric collector motor.

The peculiarity of the proposed engine is the use of 3 as a generator to compensate for the alternating current machine (with appropriately selected parameters), emf. cor; opposite and opposite in sign to the active padieia panrhen, and in the rotor winding. Due to this, an automatic transition (without switching) of the engine is achieved in case of overloads from the synchronous to asynchronous mode.

FIG. 1,2, 3, and 4 are the electrical diagrams of three different variants of the engine of the proposed engine.

In the first embodiment (Fig. 1), the two phases R and RZ of the rotor windings are connected in parallel and connected subsequently with the third phase of the RZ to a series collector generator. The latter is a common collector AC machine, having measles A, excitation winding B, and a compensating winding K. Winding B is shunted by an adjusting resistance R.

According to the second variant (Fig. 2), the collector generator is equipped with a coiled winding Voo, which receives additional power from the rotor circuit using an additional voltage transformer T.

The third option (Fig. 3) is characterized by the use of three series collector generators included in various phases P |, PS and P3 of the motor rotor winding. In this case, the excitation windings of individual generators can be switched on successively with their own crust, or they can be crossed as shown in FIG. four.

In the latter case, the electromotive force EK of the collector machine will have a component that compensates for the emf. self-induction and motor rotor, thereby compensating for phase shift in the stator.

Subject invention

1. A synchronized asynchronous motor, excited by a serie collector generator connected to the rotor winding circuit,

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