Report on Theory Behind the Different Controller Approaches In the previous decade, the control signal regulation was performed physically, but the

efficiency as well as effectiveness of such kind of systems were low at the time of compared to automated controller designs like state space controllers, digital, PID as well as the lead-lag controllers. Such kind of latest controllers deliver automated system which is commonly used in the latest day control engineering. A benefit of such controllers that it can provide over older, manual systems contain the enhanced robustness as well as accuracy like system gives. Furthermore, the manual systems try along with some kind of errors into feedback of systems which robotically control the systems may manage with. Although, errors related insignificant feedback generate a problematic task for physical stabilization for achieving. In the latest control systems, the major thing of control system engineers include across controlling as well as understanding of environment to give products with the high performance for the society, which generally known as systems. Furthermore, it also needs that the system needs to model and understand for achieving the effective system controller. The control system is basically multiple components developing a system which will allow us for the achievement of wanted response of the system. On the other hand, a liner system theory demonizes the process to represent through a block which has relationship of input and output the as well as shows the effect and cause relationship of the major process. There are two different techniques that may be used in system controlling such as open loop and closed loop. They are same but main difference is feedback. The open loop control system uses an triggering component for the management of process directly without feedback. While the closed loop system concerns with feedback and uses it to estimate feedback signal for regulation of output to withstand recommended relation of system variables with each other, which can be performed by analysis of working of variable as well as using difference as a means of control. To control whether closed or open loop system, it can be called which use different kind of controllers, and might be useful to give immediate response and better refined performance. The report concerns with four kind of variables which are: state space controller, PID, lead lag compensator and digital controller. The workability of such application illustrate that which controller will be suitable for using to increase the performance of the system as well as wanted response. The goals of such experiment are to plan, design, simulate as well as examine the distinguished designs of controller
for the plant which is show below. 

The objectives of such experiment are to design, form as well as analyze distinguished controller designs for the plant which is given. The plant is formed as angle control pitch for a windmill rotor, as well as it can be defined as the function of transfer that shows who the plat is controlled in the mentioned figure. As continuous PID controller, the designs can be emulated and the discrete digital controller with the systems tuned for bringing the improvements accordingly, the lead lag compensator and

1.      Proportional: the proportional [2] of the function error is accepted in the sense where error is increased by the constant of proportional in equation 3. It shows the correction maintained by size of error at the given poi nt in t.