Reluctance rotor field modulation double-stator brushless doubly-fed motor

Abstract

The invention provides a reluctance rotor field modulation double-stator brushless doubly-fed motor. The motor comprises two stators and one reluctance rotor which are concentrically arranged from inside to outside, wherein the external stator (1), the rotor (3) and the internal stator (8) are arranged in turn from outside to inside, an external air gap (2) is arranged between the external stator and the rotor, and an internal air gap (7) is arranged between the internal stator and the rotor. The external stator (1) comprises an external stator yoke (11), external stator teeth (12) which are arranged at the internal side of the external stator yoke (11) and power windings (10). The internal stator (8) comprises an internal stator yoke (13), internal stator teeth (14) and control windings (9). The rotor (3) comprises magnetic-conductive iron core blocks (4) and nonmagnetic-conductive material blocks (6) which are evenly distributed along a circumference. The magnetic-conductive iron core blocks (4) internally include magnetic separation slots (5). The gaps between the external stator teeth (12) form external stator slots, and the power windings (10) are embedded in the slots. The gaps between the internal stator teeth (14) form internal stator slots, and the control windings (9) are embedded in the slots.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a brushless double-fed motor with double stators and reluctance modulation. The motor is a universal motor, which can be used as a variable frequency speed regulating motor or a variable speed constant frequency generator. Brushless and reliable, the control power is small, and it can drive a high-power motor with a small-power inverter. The rotor has no winding, no permanent magnet, simple structure and high mechanical strength. Background technique [0002] The intensification of a series of social problems such as the shortage of fossil energy and environmental pollution has made the development of sustainable and clean energy an inevitable trend. Wind power is a typical form of clean energy power generation, and currently accounts for the highest proportion in the new energy power generation market. With the development of wind power generation, higher requirements are put ...

AI Technical Summary

Problems solved by technology

This structure improves the power density of the motor to a certain extent, but the structure of the wound rotor is complex and difficult to design and process. A magnetic isolation ring needs to be placed in the middle of the rotor to prevent the coupling of the magnetic field between the windings on both sides of the rotor, resulting in a larger volume of the motor.

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