ACTIVE VIBRATION DAMPING SYSTEM WITH PROPORTIONAL-INTEGRAL-DIFFERENTIAL CONTROLLER

摘要

Invention herewith described refers to the active vibration damping system with the proportional-integral-differential controller. The system is composed of active structure (the basic structure with the sensor and the actuator) (1, 9, 10) of the control part of the system (the controller) (4) and the high voltage amplifier (8). The control part of the system has the proportional (12), integral (13) and differential (14) type of the effect, i.e. PID controller. Compared to the standard PID controllers, the controller of the system for active vibration damping has three new characteristics: the software signal inverter (41), the low-pass frequency filter (45) type PR for noise reduction obtained by derivation of the error signal and the negative feedback (42) per the signal of the low-pass frequency by the implementation of the low-pass frequency filter (44) type PR in the division of integrated activities. The PID control algorithm implemented in the microcontroller successfully solves the problem of high amplitudes of the mechanical element oscillations on their own modes of oscillation. The coefficients of the proportional, integral and differential effect depend on the dynamic characteristics and the work environment of the elements, assemblies and systems with the possibility of software settings. The invention is designed as a special solution for vibration damping of the elements, assemblies and systems at continuous and transient (striking) excitations for a variety of applications where the appearance of high vibration on their own modes of oscillation is frequent, primarily in space, aviation and radar technology, as well as for the purposes of the opto-electronic systems, primarily for military purposes.