Copper loss reduction optimization design rapid method for high-temperature-resistant shielding type synchronous reluctance motor

Abstract

The invention relates to a rapid optimization design method for reducing copper consumption of a high-temperature-resistant shielding type synchronous reluctance motor, and belongs to the field of motor design optimization. The method comprises a magnetic network modeling method for a stator, a shielding sleeve, an air gap and a rotor of a motor, and specifically comprises the steps of performing reasonable magnetic network division on different parts by combining a finite element grid division thought according to magnetic field distribution characteristics and a motor topological structure, and fully considering magnetic leakage and nonlinear characteristics of an iron core; comprising the following steps: generating a large number of different motor design scheme individuals by adopting the genetic algorithm, quickly calculating the torque performance of each scheme individual by adopting the magnetic network model, and calculating the minimum copper loss value when the electromagnetic torque reaches the standard, and the optimization design for reducing the copper consumption can be quickly carried out. According to the method, copper loss optimization of the high-temperature-resistant shielding type synchronous reluctance motor can be rapidly completed, and a large amount of time and calculation power needed by finite element analysis are effectively saved.

Description

technical field [0001] The invention belongs to the field of motor design optimization, and relates to a fast method for optimizing the design of copper consumption reduction of a high-temperature-resistant shielded synchronous reluctance motor. Background technique [0002] High-temperature-resistant shielded synchronous reluctance motors often operate in high-temperature and high-pressure environments, and the temperature of their stator windings is extremely high, resulting in a much larger stator resistance than conventional motors. Therefore, its copper consumption is relatively large, and the heat generated by the winding is relatively large, which further increases the temperature rise of the motor and causes the stator resistance to further increase with temperature, which is a positive feedback process. Therefore, in the design of high-temperature-resistant motors, if the design indicators are met, the copper loss of the motor should be reduced as much as possible, ...

AI Technical Summary

Problems solved by technology

The synchronous reluctance motor has a high degree of saturation and a complex magnetic circuit. The analytical calculation method that does not consider saturation has a large solution error; while the finite element method has high calculation accuracy, but it takes a lot of time and computing power, and it is difficult to calculate a large number of different motor designs. plan to optimize

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