Radial-axial hybrid magnetic bearing switch magnetic resistance motor system and control method
A switched reluctance motor, axial hybrid technology, applied in electrical components, holding devices with magnetic attraction or thrust, etc., can solve the problems of many control variables, large power system, and high cost
Active Publication Date: 2018-01-05
南京埃克锐特机电科技有限公司
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Problems solved by technology
[0003] In the traditional electromagnetic bearing switched reluctance motor system, the two systems of the magnetic bearing and the switched reluctance motor are controlled separately, and two microprocessors are required to control them separately. There are many control variables, a large power system, high cost, and low integration and reliability. high
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[0075] The technical scheme of a radial-axial hybrid magnetic bearing switched reluctance motor system and control method of the present invention will be described in detail below in conjunction with the accompanying drawings:
[0076] Such as figure 1 Shown is a three-dimensional structural schematic diagram of Embodiment 1 of the radial and axial hybrid magnetic bearing switched reluctance motor system of the present invention, wherein, 1 is the stator of the reluctance motor, 2 is the rotor of the reluctance motor, 3 is the armature coil, and 4 is Radial stator Ⅰ, 5 is offset stator Ⅰ, 6 is annular magnetic yoke Ⅰ, 7 is axial stator Ⅰ, 8 is radial force rotor Ⅰ, 9 is axial force rotor Ⅰ, 10 is bias coil Ⅰ, 11 is the radial suspension coil I, 12 is the axial suspension coil I, 13 is the radial stator II, 14 is the offset stator II, 15 is the annular magnetic yoke II, 16 is the axial stator II, and 17 is the radial force Rotor II, 18 is axial force rotor II, 19 is bias coil...
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The invention discloses a radial-axial hybrid magnetic bearing switch magnetic resistance motor system and a control method. The motor system comprises a switch magnetic resistance motor and two 2.5-DOF radial-axial hybrid magnetic bearings, wherein each radial-axial hybrid magnetic bearing comprises a radial magnetic bearing and an axial magnetic bearing which are integrated, the two commonly share one set of bias winding, the bias winding of the two radial-axial hybrid magnetic bearings and m phase armature windings of the switch magnetic resistance motor commonly share a power converter andemploys a common excitation mode, when a torque is generated in the switch magnetic resistance motor, bias magnetic flux is further generated in the two radial-axial hybrid magnetic bearings, the m phase armature windings employ a traditional driving mode, a bias winding current is only related to work situations of the switch magnetic resistance motor, not any control is carried out, and controlling five suspension winding currents is only required to realize five-DOF suspension operation. The motor system is advantaged in that the integration degree is high, reliability is high, control variables are in a small quantity, suspension control is simple, the motor system is convenient for enforcement, and the motor system is suitable for high-speed application occasions with severe work environments.
Description
technical field [0001] The invention relates to a radial and axial hybrid magnetic bearing switched reluctance motor system and a control method, belonging to the technical field of magnetic levitation switched reluctance motors and their control. Background technique [0002] The magnetic levitation motor system composed of electrically excited bearings and switched reluctance motors has strong adaptability to harsh working environments such as high temperature, high humidity, and strong corrosion because there is no permanent magnet in the system. It has unique advantages in applications such as harsh environments. [0003] In the traditional electromagnetic bearing switched reluctance motor system, the two systems of the magnetic bearing and the switched reluctance motor are controlled separately, and two microprocessors are required to control them separately. There are many control variables, a large power system, high cost, and low integration and reliability. high. ...
Claims
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Inventor 刘泽远蔡骏
Owner 南京埃克锐特机电科技有限公司