Motor drive control system with learning function

Abstract

The invention discloses a motor drive control system with a learning function, and belongs to the motor drive control system field. According to the scheme, cooling oil in a motor main body is monitored in real time, the volume of a compensation fin extending into the cooling oil is reasonably adjusted while flocculent impurities generated in the cooling oil are absorbed and locked by utilizing the compensation fin and a cleaning fiber cluster, so that the influence of the flocculent impurities on the normal work of the rotor in the motor main body is reduced; the motor is driven and controlled in real time according to the actual working temperature of the motor, and in a daily driving control process, according to real-time temperature monitoring, the drive control system is enabled to have learning capability, and the motor is controlled to work in the most appropriate mode, so that the heat dissipation efficiency of the motor is greatly improved on the premise that the normal working efficiency of the motor is not influenced, flocculent impurities are not easy to form in the cooling oil, and the normal working of the motor rotor is not easy to influence.

Description

technical field [0001] The invention relates to the field of motor drive control systems, more specifically, relates to a motor drive control system with a learning function. Background technique [0002] Motors include motors and generators. Since generators are rarely used in daily life, motors are often used to refer to motors in spoken language. The commonly used cooling media in motors are mainly air and cooling oil, and oil-immersed motors are Use cooling oil as the cooling medium in the motor to increase the heat dissipation efficiency of the motor. Compared with motors that use air as the cooling medium, oil-immersed motors usually need to be equipped with corresponding sealing devices and systems in order to preserve their own cooling oil. Immersed motors can usually be used in special environments such as underwater. [0003] The motor drive control system mainly includes two parts: motor vector control and direct torque control. The motor vector control is develo...

AI Technical Summary

Problems solved by technology

[0003] The motor drive control system mainly includes two parts: motor vector control and direct torque control. The motor vector control is developed on the basis of the motor unified theory, electromechanical energy conversion and vector transformation theory. The basic idea is to simulate the asynchronous motor Converting to a DC motor to achieve better and simpler control, when establishing a mathematical model, the motor is generally idealized according to the above method, and the direct torque control can be roughly divided into two types according to the different ways of obtaining the flux linkage: direct torque control And indirect methods, the realization of the direct method relies on direct measurement or estimation of the magnitude and position of the rotor, stator, air gap flux vector, the traditional direct vector control strategy uses detection coils, stator windings with taps or Hall effect The sensor detects the magnetic flux, but due to the structure of the motor or the need for heat dissipation, there will be certain restrictions. However, with the continuous emergence of high-speed DSP, it should be possible to realize load control and flux linkage estimation within a PWM cycle. The indirect method uses the motor model, for example for rotor flux oriented control, it utilizes the inherent slip relationship, and the indirect method has a higher dependence on the motor parameters than the direct method

[0004] The existing motor driver can work on its own according to the control instructions input in advance by its own control terminal, or work according to the real-time instructions input by the technicians. After the motor works for a long time, it will generate a lot of heat itself, and the heat dissipation of the motor is the most important. The decisive factors are the heat conduction efficiency between the internal cooling medium and the fins and the heat conduction efficiency between the fins and the external environment. The transfer efficiency between the fins and the external environment can be changed by simply improving the motor, such as Install fans and other devices near the motor to change the air flow rate in the area where the motor is located, thereby changing the heat conduction efficiency between the fins and the external environment. However, it is difficult to automatically adjust the heat conduction efficiency between the internal cooling medium and the fins, and the motor is long. Working at an excessively high temperature for a long time will cause the cooling oil as the cooling medium to deteriorate and appear flocculent impurities, which will easily affect the normal operation of its own motor rotor

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