Cascade control system and control strategies

Control systems like plants of manufacturing, power plants, automobiles, aircrafts and robot manipulator needs a network to exchange information within itself. A network having a closed loop feedback is the choice which is known as cascade control system. To improve the efficiency, flexibility and reliability of these systems can be improved by the inclusion of this control network. Installation, reconfiguration and maintenance costs can also be reduced significantly. For controlling purpose of cascade control system controllers like Proportional integral, Proportional integral derivative are used.