Two-speed multi-winding generator

Abstract

The invention provides a two-speed multi-winding generator which includes a casing, a rotor and a stator. The rotor and the stator are installed in the casing. The rotor is connected to a prime mover.A stator slot is internally provided with mutually independent high-speed winding, low-speed winding and speed measuring winding. Two sets of corresponding windings with different rotation speeds areset on the stator to solve the problem of voltage variation of the generator in the time that the speed of the prime mover is changed, and the real-time generator rotation speed monitoring is achieved by setting the speed measuring winding. Compared with a common solution for solving a generator two-speed problem, the solution of the invention has the advantages that the number of generators is not increased, a rotation speed sensor is not used, the volume and weight of a system are reduced, the reliability of the system is improved, in addition, by setting the high-speed winding and the low-speed winding at left and right sides of the stator slot, an armature superposition problem of a multi-winding generator is solved, the performance of the generator is improved, and the two-speed multi-winding generator has an excellent promotion value.

Description

technical field [0001] The invention relates to a two-speed multi-winding generator. Background technique [0002] When the currently commonly used generators are working, because the rotor is connected to the output shaft of the prime mover, the rotor speed is directly affected by the prime mover. Some equipment has a wide range of prime mover speed changes, which can be roughly divided into low speed and high speed. two kinds. According to the principle of electromagnetic induction, the induced electromotive force is proportional to the speed at which the conductor cuts the magnetic lines of force. Therefore, at low speeds, the output voltage of the generator is low, and at high speeds, the output voltage of the generator is high. The voltage change of the generator due to the change of the speed of the prime mover is extremely unfavorable for the equipment that uses the generator for power supply. In serious cases, it may directly cause the equipment to be scrapped. The...

AI Technical Summary

Problems solved by technology

[0003] One of the solutions currently adopted is to connect two generators in series on the equipment, both generators adopt the form of single winding, one is a low-speed generator and the other is a high-speed generator, respectively for electrical equipment For power supply, its biggest disadvantage is that two generators are required, which increases the volume and weight of the system, and is not suitable for use on equipment that has more restrictions on volume and weight

Another solution is to arrange two sets of windings on the sa

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