With progress in technology, the problem of protecting human-beings, machines and technological processes from sources of vibration and impact has become of utmost importance. Traditional "classical" methods of protection, based upon utilising elastic passive and dissipative elements, turn out to be inefficient in many situations and can not completely satisfy the complex and often contradictory claims imposed on modern vibration protection systems which must provide high performance at minimum dimensions. For these reasons, active vibration protection systems, which are actually systems of automatic control with independent power sources are widely used nowadays.