2-inertia System Research Articles

D24 離散時間近似モデルを用いた2慣性系の制御(D2 ロボット・制御(メカトロニクス))

D24 離散時間近似モデルを用いた2慣性系の制御(D2 ロボット・制御(メカトロニクス))

Fuzzy Control of 2-Inertia System with Scaling Factors Determined by GA

Fuzzy Control of 2-Inertia System with Scaling Factors Determined by GA

Speed Control of 2-Inertia System with Gear Backlash based on Gear Torque Compensation

In this paper, we propose a novel speed control method for 2-inertia system with gear backlash based on the gear torque compensator. The compensator consists of two elements: the gear torque observer and a feedback gain to be adjusted. The ideal gear torque compensation makes the characteristic from motor torque to motor speed to that of 1-inertia system. However, such a direct usage of the compensator causes harmful vibration due to the torsional shaft. To make a compromise, we introduce a feedback gain and adjust it. By combining this method with a usual PID controller, we realized superior performances in vibration suppression and disturbance rejection. Its effectiveness is shown by simulations and experiments.

Speed Control of 2-Inertia System with Gear Backlash

Speed Control of 2-Inertia System with Gear Backlash

A Review of Torsional Vibration Control Methods and a Proposal of Disturbance Observer-Based New Techniques

Vibration suppression and disturbance rejection in torsional system are important issue in the future motion control. In this paper, first, a brief review on various control strategies is given. Next, a new control technique based on the disturbance observer, the "resonance ratio control" is proposed. By realizing Manabe's model polynomial, the 2-inertia non-stiff system can be controlled effectively although the controller's order is only 2.

Control of 2-Inertia System only by a PID Controller.

Control of 2-Inertia System only by a PID Controller.

2-Inertia System Control using Resonance Ratio Control and Manabe Polynomials.

Vibration suppression and disturbance rejection controls are important issues in recent steel rolling mill systems due to the application of high response Ac drive system. Various methods have been already proposed, for example, simple acceleration feedback, state feedback and H∞ control, etc.In this paper, I will propose a novel controller for a 2-inertia system which is the simplest model of the rolling mill system, where the roll is coupled with the motor by a long shaft. By realizing “Manabe Polynomials” using the “resonance ratio control” based on the disturbance observer, the 2-inertia system can be controlled quite effectively. Moreover, the order of the proposed controller is only 2.I will show some simulation results to demonstrate that the proposed controller suppresses the torsional vibration and the disturbance torque effectively in various 2-inertia systems with a wide range of the ratio between the motor and load inertia moments.