Hybrid excitation wound rotor and hybrid excitation wound synchronous motor

A hybrid excitation and winding rotor technology, applied to synchronous motors with stationary armatures and rotating magnets, synchronous machines, synchronous machine parts, etc., can solve the problem that the torque component cannot be fully utilized, and achieve improved torque Effects of output, improved torque density, and improved performance
CN110838779APending Publication Date: 2020-02-25SHANDONG UNIV
3 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2020-02-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a hybrid excitation wound rotor and a hybrid excitation wound synchronous motor. The hybrid excitation wound rotor comprises a rotating shaft positioned in the center of the rotor; a rotor core is arranged outside the rotating shaft; a set number of salient poles are arranged on the rotor core; coils are wound on two sides of each salient pole to form a rotor exciting winding; permanent magnets are mounted on the surface of one side, opposite to the rotating direction of the motor rotor, of the geometric center line of each salient pole; and the permanent magnets of thewhole rotor are asymmetrically distributed. According to the hybrid excitation wound rotor, the direct-current excitation torque and the permanent magnet torque can be effectively utilized; the asymmetric design of the permanent magnets not only increases the salient pole ratio of the motor, but also increases the reluctance torque; and the direct-current excitation torque, the permanent magnet torque and the reluctance torque of the motor are superposed at the same or similar current phase angle to improve the electromagnetic torque, so that the torque density, the efficiency, the power factor and other electromagnetic properties of the hybrid excitation wound synchronous motor are improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of hybrid excitation synchronous motors, in particular to a hybrid excitation wound rotor and a hybrid excitation wound synchronous motor. Background technique

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] In recent years, permanent magnet synchronous motors have attracted much attention due to their high torque density and high efficiency. However, due to the high price of rare earth permanent magnet materials, it is imperative to develop high-performance motors with less or no rare earth permanent magnets. Wound rotor synchronous motors do not rely on permanent magnet materials, and are low in cost and strong in stability, but relatively low in performance. Many researchers have proposed a large number of technologies to improve the performance of wound rotor synchronous motors, but the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More