Design method of vehicle permanent-magnet synchronous motor

A permanent magnet synchronous motor and vehicle technology, applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve the problems of wasteful design cycle and prolongation, and achieve the effect of reducing design cost and shortening design cycle.

Active Publication Date: 2019-09-06
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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Problems solved by technology

If the performance of the motor does not meet the design requirements, it needs to be redesigned, manufactu

Method used

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  • Design method of vehicle permanent-magnet synchronous motor
  • Design method of vehicle permanent-magnet synchronous motor
  • Design method of vehicle permanent-magnet synchronous motor

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Embodiment Construction

[0040] The method provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] Such as figure 1 Shown, the method provided by the present invention specifically comprises:

[0042] Step 1. Determine the performance requirement parameters of the motor;

[0043] Step 2, according to the relationship between the rated torque of the motor and the inner diameter of the stator, and the relationship between the maximum torque and the calculated length of the armature, determine the structural parameters of the stator and rotor of the motor according to the performance parameters;

[0044] Step 3, using the performance requirement parameters and the motor stator and rotor structure parameters to establish a permanent magnet synchronous motor power loss mathematical model;

[0045] Step 4, establishing a permanent magnet synchronous motor system dynamic simulation model including the performance parameters, motor stator a...

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Abstract

The invention provides a design method of a vehicle permanent-magnet synchronous motor. According to the design method, a motor structure parameter such as a stator inner diameter, a rotor outer diameter, an air gap length and an armature calculation length can be determined according to actual performance of a permanent-magnet synchronous motor, the output performance of the permanent-magnet synchronous motor also can be simulated and analyzed by a computer simulation method, the motor structure parameter determined by the method is analyzed and verified, the probability that aspects such asperformance output quantity, dynamic characteristic and working efficiency of an experiment sample do not conform to design requirement is reduced, so that the design cost of the permanent-magnet synchronous motor is reduced, and the design period is reduced.

Description

technical field [0001] The invention relates to the technical field of motor design, in particular to a design method of a permanent magnet synchronous motor for vehicles. Background technique [0002] The motor is the core component of the power system of a new energy vehicle. While fully satisfying the performance of the vehicle, it should also satisfy the comfort during driving, environmental adaptability and the mileage of a single charge. Correspondingly, the motor for a vehicle Compared with ordinary industrial motors, the design of the motor has stricter technical specifications. [0003] Traditional permanent magnet synchronous motor design theory and analysis methods mainly include analytical magnetic circuit analysis method and finite element method. The analytical magnetic circuit analysis method is based on the classical mathematical analysis method to obtain the relational expression between the motor performance and the design parameters, which is a fast and e...

Claims

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Application Information

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IPC IPC(8): H02K15/00
CPCH02K15/0006
Inventor 何洪文魏东
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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