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A Modeling Method of Switched Reluctance Motor Considering Instantaneous Iron Loss

A technology of switched reluctance motor and modeling method, which is applied in CAD numerical modeling, electrical digital data processing, computer-aided design, etc., can solve the problems of the dynamic performance impact of switched reluctance motor, the large specific gravity, the large iron consumption ratio, etc. , to achieve the effect of improving dynamic simulation accuracy, improving accuracy and broad application prospects

Active Publication Date: 2021-04-30
CHINA UNIV OF MINING & TECH
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Problems solved by technology

However, as the motor speed increases or the power increases, the iron loss accounts for an increasing proportion of other losses in the motor, which has a greater impact on the dynamic performance of the switched reluctance motor.
For high-speed switched reluctance motors, the iron loss accounts for a relatively large proportion in the operation of the motor, and ignoring the iron loss will bring large errors to the study of the switched reluctance motor drive system

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  • A Modeling Method of Switched Reluctance Motor Considering Instantaneous Iron Loss
  • A Modeling Method of Switched Reluctance Motor Considering Instantaneous Iron Loss
  • A Modeling Method of Switched Reluctance Motor Considering Instantaneous Iron Loss

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Embodiment Construction

[0057] The switching reluctance motor modeling method considering instantaneous iron loss of the present invention comprises the following steps:

[0058]a. First, establish the finite element model of the motor through the finite element analysis software, analyze the electromagnetic field distribution of the motor, and divide the iron core part of the motor according to the distribution of the electromagnetic field of the motor. The radial direction is divided into three areas, the rotor pole is divided into three areas along the radial direction, the stator yoke between the two-phase stator poles, and the yoke area between the rotor poles, and each characteristic area is selected 1 feature point, the static flux density data of each feature point changing with the rotor position and current is obtained, and the equivalent magnetic circuit analysis method is used to analyze the flux density distribution and change trend of the motor, and the static flux density and each area ...

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Abstract

The invention discloses a modeling method of switched reluctance motors considering instantaneous iron loss, which is applicable to switched reluctance motors with various phase numbers and belongs to the field of modeling of new motors. The model first establishes the finite element model of the motor through finite element analysis software, analyzes the electromagnetic field distribution of the motor and obtains the dynamic flux density calculation formula of each region of the motor according to the equivalent magnetic circuit method, and obtains the dynamic flux density of each characteristic region. By analyzing the frequency domain iron loss calculation model of the motor, the instantaneous iron loss calculation model is obtained. Then combine the obtained dynamic flux density acquisition model and the instantaneous iron loss calculation model to calculate the overall iron loss of the motor, and finally allocate the calculated overall iron loss, and adjust the parallel equivalent of both ends of the phase winding according to the allocated iron loss Based on the size of the resistance, a modeling method of switched reluctance motor considering instantaneous iron loss is established, which improves the accuracy of modeling of switched reluctance motor, and has important theoretical value and broad application prospects.

Description

technical field [0001] The invention relates to a modeling method of a switched reluctance motor considering instantaneous iron loss, and is especially suitable for modeling the instantaneous iron loss of each phase switched reluctance motor. Background technique [0002] Accurate simulation calculation of steady-state and dynamic performance is crucial to the design, analysis and control of switched reluctance motor drive systems. As an important part of the loss during the operation of the motor, iron loss affects the dynamic performance of the motor such as operating efficiency and temperature rise. At present, the commonly used simulation and analysis of the dynamic performance of the switched reluctance motor drive system is to use the finite element analysis to calculate the static characteristics of the motor without loss. According to the obtained static characteristics, the switch is established in the Simulink module of MATLAB software. A dynamic simulation model ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06F30/367G06F111/10
CPCG06F30/23G06F30/367G06F2111/10
Inventor 陈昊闫文举
Owner CHINA UNIV OF MINING & TECH
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