Noise robustness improvement of reset control systems using measurement line filtering

Inherent limitations of linear control, including PID, are Bode's phase-gain relationship and the waterbed-effect. Literature showed that reset control can overcome these limitations. The 'Constant in Gain, Lead in Phase' (CgLp) reset element was developed, which can be used in combination with a conventional PID approach. The benefit is that...

Damping Analysis of Reset Control Systems: an Analytical Approach

The high-tech industry continuously pushes the boundaries of controller performance to achieve faster and more precise machines. Currently, linear control is the standard in the industry. These controllers suffer from the waterbed effect and Bode's phase/gain relation, which impose inherent limitations on the precision and robustness of the...

Overcoming inherent performance limitations in industrial motion stages with reset control: A general approach to the design and implementation of reset controllers validated on an ASMPT AB383 wire bonder

Linear time-invariant controllers are undoubtedly the most popular type of regulators used in industrial applications, with the overwhelming majority of companies employing them. The reason is mainly given by their simple design methods. In particular, frequency domain predictive performance analysis and stability methods allow the use of...

Using reset control for improvement of transient response

PID is a widely used linear controller in industry field. However, PID is not sufficient enough to meet the increasing requirements because of the functional restrictions, like bode’s phase gain relation and waterbed effect. Nonlinear controllers are then interested by researchers. Reset control, as one of the nonlinear controllers, has more...