Abstract: In the global world, the energy demand increases in a broad level to solve the demand of energy supply. In this field a research program working in a broad level by scientist or knowledgeable engineers. In This methodology of Unified controls for a Power plant is conceived by the consultants and discrete PID contractor to improve the plant efficiency. This is implemented in few projects and various options are also indicated in the methodology. In this paper an attempt has been made to design discrete PID controller for drum parameter control. In the initial stage used in a Boiler by use MATLAB. Comparison of discrete PID controller with conventional controller is also discussed in this paper.
Keywords: Proportional-integral-derivative Controller, Control Algorithm, Conventional Controller.