ENG60J: During the refurbishment of a petrochemical plant, it is required to re-tune and redesign the controllers of problematic parts of the plant: Further Control Engineering Assignment, WGU, Singapore

During the refurbishment of a petrochemical plant, it is required to re-tune and redesign the controllers of problematic parts of the plant. 

It has been verified that the dynamic process to be controlled mainly consists of a plant dynamic and an actuator dynamic as shown in Figure 1 below.

The input/output relation of the actuator dynamic:

where x(t) is the actuator output and u(t) is the command input to the actuator.

The input/output relation of the plant:

where y(t) is the measured plant output and x(t) is the actuator output.

In this assessment, as an engineer/consultant in a consultancy company, you have been requested by a project manager to write a proposal on the control system design. In the proposal, you will review different control system design methods suitable for the task, use a control system design method to design control laws for the process, and present your analysis and evaluations of the proposed designs. This must be written in a technical manner to the project manager.

Candidates will use library facilities, IT facilities, and facilities in industries to conduct research on different control system design approaches and carry out control system design.