Three-phase synchronous motor

Abstract

The invention relates to a three-phase synchronous motor. A rotor winding and a stator winding of a motor are improved, and large-current and high-torque output is adopted during starting; once the work is stable, a low current is adopted for stable torque output; the stator winding achieves variable turns and positive and negative alternation of the magnetic field directions of the coils so as tobe matched with magnetic fields of magnetic steel with different magnetic poles on a rotor. The motor can save energy and electricity, is good in control performance, is low in temperature rise and is high in reliability.

Description

technical field [0001] The invention relates to motor technology, in particular to a three-phase synchronous motor. Background technique [0002] In the field of existing industrial production, motors are common necessary equipment, such as spinning machines, which require motors to drive the yarn to be rolled up, and require a large torque when starting. Once the starting is stable, the output power after starting is not required. The current spinning machines Generally, three-phase asynchronous motors are used. Since the stator coil of the motor is fixed, after the yarn roll is started to work stably, it still maintains a working state close to the rated power, so the power consumption is relatively large. At present, the profit margin of industrial products needs to be fine-tuned. In the environment of globalized management, this type of motor obviously does not meet the production needs of enterprises. Contents of the invention [0003] The purpose of the present inve...

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Problems solved by technology

[0002] In the field of existing industrial production, motors are common necessary equipment, such as spinning machines, which require motors to drive the yarn to be rolled up, and require a large torque when starting. Once the starting is stable, the output power after starting is not required. The current spinning machines Generally, three-phase asynchronous motors are used. Since the stator coil of the motor is fixed, after the yarn roll is started to work stably, it still maintains a working state close to the rated power, so the power consumption is relatively large. At present, the profit margin of industrial products needs to be fine-tuned. In the environment of globalized management, this type of motor obviously does not meet the production needs of enterprises.

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