This paper introduces a graphically-based tool for the analysis and design of linear, dynamic, digital control systems that is an alternate representation of the digital root locus. The technique exposes the explicit influence of system parameters, such as the forward proportional control gain, on system response characteristics, including natural frequency and damping ratio. In particular, digital gain plots are proposed to elucidate the connection between the control gain and stability/response parameters. These plots provide useful design insight, as demonstrated in two examples.
ASJC Scopus subject areas
- Mechanical Engineering