Series motor control system and method

Abstract

The invention discloses a series motor control system and method. The system mainly comprises an MCU (Microprogrammed Control Unit) (7), a connection power supply (1), an EMC (Electro Magnetic Compatibility) filter (2), a resistance-capacitance voltage reduction module (3), a zero-crossing synchronous module (4), a bus voltage module (5), a potentiometer gear module (6), a thyristor (8), a gate electrode driving module (9), a motor current module (10) and a series motor (11), wherein the EMC filter (2) is connected with the power supply (1); the thyristor (8) is connected with the series motor(11); the MCU (7) is connected with the resistance-capacitance voltage reduction module (3), the zero-crossing synchronous module (4), the bus voltage module (5), the potentiometer gear module (6), the gate electrode driving module (9) and the motor current module (10); the bus voltage module (5) is used for acquiring voltage of the EMC filter (2); the motor current module (10) is used for acquiring current in a rotating process of the series motor (11); the gate electrode driving module (9) is arranged between the MCU (7) and the series motor (11).

Description

technical field [0001] The invention belongs to a series excitation motor control system and method. Background technique [0002] At present, when the speed of the existing series-excited motor is accurately controlled, the motor needs to be externally connected with a permanent magnet and an inductive Hall element, which not only has high material costs, but also takes a long time for assembly and high cost. The implementation method of this patent saves the Hall element and the permanent magnet, and also meets the requirement of precise control of the rotational speed. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a series excitation motor control system and method. [0004] The technical scheme that the present invention solves the problems of the technologies described above is as follows: [0005] A series excitation motor control system, including: MCU controller (7), connecting power supply (1), EMC f...

AI Technical Summary

Problems solved by technology

[0002] At present, when the speed of the existing series-excited motor is precisely controlled, the motor needs to be connected with an external permanent magnet and an inductive Hall element, which not only requires high material costs, but also requires long assembly time and high cost.

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