Stability region

The stability region of a control system is the set of conditions or parameters where the system behaves predictably and doesn’t diverge or oscillate uncontrollably. In simple terms, it’s like a safe zone where the system responds smoothly to inputs without becoming unstable or chaotic. If the system operates within this region, it maintains desired performance; if it goes outside, it may become unpredictable or fail. Understanding the stability region helps engineers design systems that are reliable and safe under various conditions.