Power regeneration in active vibration isolation systems

被引：1

作者：

Vujic, N ^{[1
]}

Leo, DJ ^{[1
]}

Lindner, DK ^{[1
]}

机构：

[1] Virginia Tech, Bradley Dept Elect & Comp Engn, Dept Engn Mech, Blacksburg, VA 24061 USA

来源：

SMART STRUCTURES AND MATERIALS 2003: DAMPING AND ISOLATION | 2003年 / 5052卷

关键词：

power flow; active materials; feedback control;

D O I：

10.1117/12.483957

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The power requirements imposed on an active vibration control system are quite important to the overall system design. In order to improve the efficiency we analyze different feedback control strategies which will provide electrical energy regeneration. The active isolation system is modeled in a state-space form for two different types of actuators: a piezoelectric stack actuator and a linear electromagnetic (EM) actuator. During regenerative operation, the power is flowing from the mechanical disturbance through the electromechanical actuator and its switching drive into the electrical storage device (batteries or capacitors). We demonstrate that regeneration occurs when controlling one or both of the flow states (velocity and/or current). This regenerative control strategy affects the closed loop dynamics of the isolator which sees its damping reduced.

引用

页码：368 / 379

页数：12