间隙非线性的校正

一、发动机转速回路数控系统 由于数字计算机具有高速度、高精度、多功能、大容量和灵活性的综合优点,自60年代起,被广泛地用于控制领域。高速飞机的动力装置,包括进气道、燃气发生器、喷

A COMPENSOTION METHOD FOR THE BACKLASH NON-LINEARITY

In closed-loop control systems, there is a backlash usually in a mechanical transmission devices.Hence dynamic qualities of the system are becoming worse, sometimes an autonomous oscillation will occur and the system will be unstable.Obviously , the better way is to make the backlash as small as possible. However improving the precision of mechanical manufacturing and installing is limited. It is practically impossible to eliminate backlash entirely. This papr presents a compensation method using a linear phase lead network. The results of calculation and simulation coincide with the test well.The aero-engine ground test with the digital speed control system has shown that this method is able to make the engine work stably and the autonomous ocillation excited by the backlash has gone.