PID assignm Assignment Example | Topics and Well Written Essays - 1500 words - 1

PID assignm - Assignment Example Firstly, there has been a great need to increase the performance of appliances and this can be achieved using the fractional PID controllers. If all the control specifications such as set points, rejection of load disturbances, rejection of noise and the control effort are considered, the PID controllers fully can characterize the performance of the appliances. Another reason for this occurrence is that PID controllers offer simplified, effective and robust tuning rules especially in instances where different control tasks are required. Thirdly, PID controllers also offer additional functionalities such as setting the point weighting, anti-wind up functionalities, feed forward functions which are well established in standardized controllers. However, the fractional PID controllers have not yet implemented this functionality. Another reason for the widespread use of PID controllers is that they usually offer a good compromise between the complexity and performance of the system. They ensure that high performance is maintained while at the same time moderating the complexity of the system. Finally, the PID controllers are based on models in order to predict the output of the process and also use reference trajectories in order to determine the desired output. These conceptual models make it possible to interact with the systems. In industrial temperature control, PID controllers are used to provide a quick and accurate control of temperature in industrial plants. A sensor with a simple logic controller is used to create the system. Independent control loops are used to control the cooling and the heating while an auto tuning software is used to speed up the design. Thermocouples may be used to give the feedback (Kiam et al, 2005). In industrial Flow control, PID controllers are used in the control of flow, parameters of fluids dynamics such as