General miniaturization digital electric steering engine controller and control method thereof

Abstract

The invention discloses a general miniaturization digital electric steering engine controller and a control method thereof. The general miniaturization digital electric steering engine comprises a signal conditioning module, an AD sampling module, a parallel-to-serial module, a steering engine algorithm module, a serial-to-parallel module, a steering engine driving control module, a steering engine driving module, a displacement detecting circuit and a current detecting circuit, wherein the displacement detecting circuit and the current detecting circuit output analog position signals and analog current signals of m steering engines, and m is greater than or equal to 2; one channel of serial position signal, one channel of serial current signal and one channel of serial instruction signal are obtained by the signal conditioning module, the AD sampling module and the parallel-to-serial module and are fed into the steering engine algorithm module; the steering engine algorithm module is used for performing position and current double closed loop control on a steering engine drift angle and outputting one channel of serial control signal; and the serial control signal is converted into m channels of parallel control signals required by the steering engine through the serial-to-parallel module and the parallel control signals are outputted to the steering engine driving control module; and the steering engine driving control module and the steering engine driving module drive a motor to rotate. The general miniaturization digital electric steering engine controller and the control method thereof disclosed by the invention are high in control speed and stability.

Description

technical field [0001] The invention relates to a steering gear controller and a control method thereof. Background technique [0002] As the actuator of the missile control system, the performance of the steering gear system directly affects the success or failure of the flight test. The guided rocket that flies in the air according to a certain trajectory uses its control system to drive the deflection of the rudder surface to realize the flight control of the rocket, and its performance directly affects the technical indicators of the guided rocket. The steering gear system is actually a high-precision position servo system. Its working principle is to accept the control signal given by the host computer, drive the steering gear to move through power amplification, and control the deflection of the rocket rudder surface by controlling the steering gear, so that Adjust the flight attitude and flight trajectory of the rocket, and finally ensure that the rocket can fly acco...

AI Technical Summary

Problems solved by technology

First of all, the general control process of existing steering gear controllers adopts a sequential execution method. For controlling multi-channel steering gears, its calculation speed is limited, it takes up a lot of resources, and its work is unreliable.

In addition, in the existing controllers, since the steering gear deflection angle command signal frequency from the host computer is relatively low, usually in the hundreds of hertz, the current sampling frequency of the steering gear is usually high, and the current loop bandwidth is usually large. The steering gear deflection command signal from the host computer contains rich speed and current impact components, which will cause speed fluctuations and large current processes in the actual control of the steering gear, so the stability of the steering gear is poor. power consumption

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