In this work, the robustness of discrete PI controllers when used with a Symmetric-Send-On-Delta (SSOD) sampling law is addressed. Hitherto, the continuous Describing Function has been employed as ...

Limit Cycles In Non Linear Sampled Data Systems

Event-based discrete PI controllers robustness analysis through sampled describing function technique

Nonlinear control engineering , Nonlinear control engineering , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی

Nonlinear Control Engineering

Analysis and Synthesis of Sampled‐Data Control Systems

This paper surveys the application of a frequency-domain method, initially presented by Tsypkin, and its extensions for the evaluation of free and forced oscillations in relay systems. It is shown ...

Oscillations in relay systems

A SINUSOIDAL RESPONSE method of analysis and synthesis of a contactor servomechanism employing sampled data in the error channel is introduced. Fig. 1 shows the block diagram of the particular servo system under investigation. Due to the presence of the sampler, clamper, and contactor the system is discontinuous in time as well as being nonlinear. An exact system performance can be obtained only by laborious computations, moreover, no exact analytic solution in closed form can be obtained. However, much can be learned about the system by employing a sinusoidal response technique. Although an approximate method, the sinusoidal method provides a useful guide in analysis and synthesis.

Limit Cycles In Non Linear Sampled Data Systems

Citations

Event-based discrete PI controllers robustness analysis through sampled describing function technique

References

Nonlinear Control Engineering

Analysis and Synthesis of Sampled‐Data Control Systems

Oscillations in relay systems

Contactor servomechanisms employing sampled data

Describing Function Analysis for Nonlinear Sampled-Data Control Systems

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