Electric actuation system and control method thereof

Abstract

The invention provides an electric actuation system comprising a digital controller, first to fourth power supply transformation circuits and first to fourth steering engines. The digital controller acquires the input current signals, the rotor displacement signals and the rotor angle signals of the first to fourth steering engines and integrally computes the driving signals of the switching devices in the first to fourth power supply transformation circuits by using a vector control method and transmits the driving signals to the first to fourth power supply transformation circuits through an isolation circuit. The first to fourth power supply transformation circuits supply driving electric energy to the first to fourth steering engines. Four steering engines are integrally controlled by using one digital controller so that high-performance position servo control can be realized, the power density of the system can be enhanced, miniaturization of the system can be facilitated and the reliability and the rapidity of the system can be guaranteed.

Description

technical field [0001] The present invention relates to electric actuation systems, and more particularly to integrated control electric actuation systems. Background technique [0002] Electro Mechanical Actuator (EMA) is the full name of the servo control system used in aviation, aerospace, military, machinery and other fields. It indirectly or directly controls the movement of the target by controlling the operation of the actuator, so as to achieve purpose of the manipulator. European and American developed countries represented by the United States have basically realized the engineering application of EMA on aerospace vehicles in the 1990s. The electric actuation system is the key component to realize the trajectory control of the aircraft. By receiving the instructions from the flight controller, it controls the four rudder surfaces of the aircraft to realize the flight modes such as dive, roll, climb, and descent. Each rudder surface control system is composed of a...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes an electric actuation system in which a single controller centrally controls four rudders, realizes the simplification and integration of the control system, and provides a centralized control algorithm to realize the four rudders in the electric actuation system The high-precision position servo control of the machine solves the problem that the program is easy to overflow and run away

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