Single-winding bearingless motor torque and suspension force direct controller and construction method

A bearingless motor and suspension force technology, which is applied in the direction of motor generator control, electronic commutation motor control, electromechanical brake control, etc., can solve the problems of current fluctuation, complicated switching tube control process, and large power loss.

Inactive Publication Date: 2016-03-16
江苏科海生物工程设备有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to too many switching tubes in the power system, the control process is relatively c...

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  • Single-winding bearingless motor torque and suspension force direct controller and construction method
  • Single-winding bearingless motor torque and suspension force direct controller and construction method
  • Single-winding bearingless motor torque and suspension force direct controller and construction method

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Embodiment Construction

[0031] Figure 7 What is shown is a schematic diagram of the composition of the direct controller 20 of torque and levitation force of a complete single-winding double-three-phase bearingless permanent magnet motor. The torque and suspension force direct controller 20 is composed of a reference value calculation part 18 and an observed value calculation part 19 .

[0032] The observed value calculation part 19 is composed of a winding flux observer 6, a levitation force observer 7, a torque observer 8 and two matrix transformation modules 4, 5, wherein the output of the matrix transformation module 4 is connected to the winding flux linkage The input of the observer 6 and the output of the winding flux observer 6 are respectively connected to the levitation force observer 7 and the torque observer 8, and the output of the matrix transformation module 5 is respectively connected to the winding flux observer 6 and the torque observer 8. Suspension force observer 7 respectively ...

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Abstract

The invention discloses a single-winding bearingless motor torque and suspension force direct controller and a construction method. The controller comprises a reference value calculation part and an observation value calculation part, wherein the observation value calculation part comprises a winding flux observer, a suspension force observer, a torque observer and two matrix transform modules; output of the first matrix transform module is connected with input of the winding flux observer; the output of the winding flux observer is connected with the suspension force observer and the torque observer respectively; the output of the second matrix transform module is connected with the winding flux observer and the torque observer respectively; a observed winding real-time flux is applied to the torque observer, the suspension force observer and a torque and suspension force voltage reference value generator; a voltage static coordinate instruction value is generated in the torque and suspension force voltage reference value generator according to a flux amplitude instruction value, real-time winding torque component flux amplitude and phase and an actual feedback current; and the torque and rotor radial suspension force are directly controlled.

Description

technical field [0001] The invention belongs to the technical field of electric drive control equipment, is a multi-variable nonlinear single-winding double-three-phase bearingless motor torque and suspension force direct controller technology, and is suitable for high-performance control of multi-phase bearingless permanent magnet motors. Background technique [0002] The traditional bearingless permanent magnet motor adopts a double-winding structure. The torque winding and the suspension force winding are embedded inside the motor. Two sets of windings are needed to realize the bearingless operation of the motor, which inevitably makes the internal structure of the motor complex and the winding takes up more space. space, resulting in loss. The single-winding bearingless permanent magnet motor inherits the characteristics of the traditional double-winding bearingless motor, such as high power density, no lubrication, no wear, and no mechanical noise. At the same time, the...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P21/13H02P21/20
CPCH02P21/0003H02P21/13
Inventor 朱熀秋袁建飞
Owner 江苏科海生物工程设备有限公司
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