Bias current self-adaptive system of dual-motor drive system in shipborne satellite communication station

Abstract

The invention relates to a shipborne satellite communication station dual-motor driving system bias current self-adaptive system. A main control computer controls left and right channel currents through a D / A conversion module, drives left and right servo motors through left and right bridge drives respectively, and drives an antenna to rotate through combined action of left and right primary gears on an output gear; a wind speed measuring instrument measures a wind speed of the environment in which the satellite communication antenna operates in real time, a rotational state measuring link measures rotational state of the satellite communication antenna in real time, the measured real-time data is transmitted to a computing unit, and the computing unit sends a servo system driving current inflection point value computed in real time to the main control computer; and the main control computer adjusts a system bias current in a self-adaptive manner after receiving the current inflection point value computed by the computing unit. The shipborne satellite communication station dual-motor driving system bias current self-adaptive system can solve the problem of tracking precision of the antenna under the condition of heavy storm waves, and can reduce workload of the servo system when the seaport is in good condition, thereby prolonging service life of equipment and reducing work stress of the maintenance staff.

Description

technical field [0001] The invention relates to the control field of a dual-motor drive servo system of a satellite communication station, in particular to a bias current self-adaptive system of a dual-motor drive system of a ship-borne satellite communication station. Background technique [0002] The current bias current setting method of the satellite communication dual-motor drive servo system is to set the bias current to a fixed value in advance according to experience and sea conditions. In a high wind speed environment, the wind will cause a large load on the system, which may exceed the threshold of the system output torque, resulting in commutation of the left and right motors, which will lead to a decrease in tracking accuracy; if the bias current is set too large, the motor will be in a long-term The output state of a large load will have a negative impact on the life of the motor and system maintenance. Contents of the invention [0003] The technical problem...

AI Technical Summary

Problems solved by technology

In a high wind speed environment, the wind will cause a large load on the system, which may exceed the threshold of the system output torque, resulting in the commutation of the left and right motors, which will lead to a decrease in tracking accuracy; if the bias current is set too large, the motor will be in a long-term Larger load output state will have adverse effects on motor life and system maintenance

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