Stability Problems of a Servomechanism Operated by PWN Mode : Part 3, The Case where a Feedback Circuit Consists of a Phase-Lead Network and Comparison of the Effect of Various Types of Compensating Elements
Taizo SAWAMURA, Hideo HANAFUSA · Transactions of the Japan Society of Mechanical Engineers · 1963
Phase-lead network in the feedback circuit is effective to stabilize the dither in the servomechanism operated by the PWN mode, because it compensates the pulse transmission lag in the forward circuit. In this paper, the stability problems are studied for the case where the feedback circuit consists of two typical types of phase-lead networks. Next, two types of the compensating elements are compared : one is a first order system and the other is a phase-lead network. It has been shown that they should be selected properly according to the pulse transmission lag. Finally, the effects of the stabilization by the phase-lead network have been verified by experiments.