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Short-time high overload permanent magnet synchronous motor electromagnetic heat research
2026-02-04
With the development of fully electrified technology, electric rudders are widely used in aerospace and military applications. Rudder system motors require high power density, high dynamic response and high reliability. Permanent magnet synchronous motors are widely used in rudder servo systems because of their simple structure, high torque density, high power density and high efficiency. High power density motors generally refer to high speed high power density motors and high torque high power density motors. For the rudder system, it is mainly high torque density motors that can meet the high dynamic response performance during its frequent acceleration. There are many researches on high torque density motors at home and abroad, with various structures, such as high temperature superconducting motors, slotless cylindrical linear motors, transverse flux motors, switched reluctance motors and so on. Although the power density of such motors is very high, their technological development is still not mature enough, and their reliability cannot be guaranteed, and this paper mainly adopts rotary surface-mounted permanent magnet synchronous motors. Short-time high overload motor refers to the motor constant speed can be output in a short period of time state instantaneous large overload, complete the actuator predetermined action. In recent years, the short-time high overload motor research is increasing, the domestic Harbin Institute of Technology, Tianjin University and so on has done a lot of work, foreign research on the thermal aspects of short-time cycle work system motor more.
02-04
Three-phase asynchronous motor starting mode
Frequency-sensitive resistance starting refers to the series connection of frequency-sensitive resistance in the main circuit when the motor starts, so as to reduce the starting current. Frequency sensitive resistance can smoothly change the starting current, the impact on the power grid is smaller, is more ideal starting method. However, high-power frequency sensitive resistors are used in the form of inductance, so in use will produce a large electromagnetic eddy current, which will reduce the power factor of the power grid.
02-04
Explosion-proof motor energy saving measures
How can explosion-proof motors reduce energy consumption, save power and play a benefit in production? It should be considered comprehensively from the following aspects.
03-03
What are the characteristics of permanent magnet direct drive motors?
Conventional motors rotate at high speeds and produce beeping sounds, and belts can become eccentric if used for too long. The permanent magnet direct drive motor can avoid these troubles and realize 1:1 transmission between equipment and motor, which makes the equipment compact, less noisy, more environmentally friendly and more professional. Direct drives are suitable for applications requiring low speeds, speed regulation and heavy loads. The main benefits of the improvement include quietness, energy saving, stability, strong power and intelligent transformation. So, the direct drive will bring you a better quality of life.
02-04
Short-time high overload permanent magnet synchronous motor electromagnetic heat research
With the development of all-electric technology, electric rudder is widely used in aerospace, military applications and other fields. The rudder system motor requires high power density, high dynamic response and high reliability. Permanent magnet synchronous motors are widely used in rudder servo systems because of their simple structure, high torque density, high power density and high efficiency.
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