軸向磁通高速磁阻電機(jī)的設(shè)計與分析
[Abstract]:Switched reluctance motor (SRM) has been widely used in shipping, home appliances, national defense and other fields because of its strong structure, stable system, excellent fault tolerance and high controllability. With the opening of the industrial 4.0 era, the new axial flux reluctance motor, which combines the advantages of disk motor and switched reluctance motor, has obvious advantages in the field of motor. On the basis of summing up the current design and development of the axial flux reluctance motor at home and abroad, the electromagnetic analytical method and the finite element method for the analysis and design of a 6 / 4 pole axial flux high speed magnetoresistive motor (Axial Flux High Speed Reluctance Motor,AFHSRM) are studied in this paper. First of all, the paper introduces the main structure of switched reluctance motor and the advantages and disadvantages of each structure, describes the main research methods of switched reluctance motor in detail, and according to the principle of electromagnetic design and performance parameter design of switched reluctance motor. The high speed magnetoresistive motor with axial flux is pre-designed. Secondly, combined with the structural characteristics of axial flux high speed reluctance motor, Using the analytical method to align the axial flux high speed reluctance motor at the center line of the stator and rotor pole (胃 _ a position), the slot center line alignment position (胃 u position) and the stator tooth back edge and rotor tooth front overlap position (胃 _ 1 position), respectively. The magnetization curve at the position is calculated. In order to calculate the magnetization curve of the 胃 a position, the equivalent model of the motor should be established by combining the saturation characteristic of the magnetic circuit at this position, and then the magnetic conductance components should be calculated, and the relationship between the current, rotor position and magnetic density should be analyzed. The results are compared with the results of finite element method to verify the correctness of the analytical method. For the calculation of the magnetization curves of 胃 _ s _ u position and 胃 _ s _ 1 position, it is necessary to analyze the distribution characteristics of the flux chain of the motor according to the unsaturated characteristic of magnetic circuit and the principle of minimum magnetoresistance. The calculation method for each part of the flux is given and the analytical results are compared with those of the finite element method to verify the correctness of the analytical method. Finally, the three-dimensional model of axial flux high-speed reluctance motor is established by using the finite element software Ansoft Maxwell, and the performance of the motor is simulated and analyzed under the condition of no load. Based on the magnetization curves of the above three key positions, the electromagnetic characteristics of the axial flux high speed reluctance motor are analyzed, and the magnetization curves of the three key positions and the curves under a given current are modeled by using different functions. Then, according to the nonlinear characteristic of magnetic circuit saturation, the analytical equation of motor torque is established, and the rationality of the calculation result is compared with that of finite element method. Combined with the above electromagnetic analysis and calculation, a complete electromagnetic analytical method of axial flux high speed reluctance motor is developed, and a related prototype is made.
【學(xué)位授予單位】:南京理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TM352
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