Robust - Health System
Robust Research of the Control System is a very active field in modern control theory research, and robust control problems have emerged in the study of differential equations in the last century. Black first applied robust control in a patented in his 1927. But what is robust? In fact, this name is a transliteration, and its English is spelled as Robust. It is also a strong and strong meaning. Control Experts use this name to indicate whether the system maintains a normal operation or attribute when the parameters in a control system do occur. As people can restore health through their own immune systems after infection of the external pathogenesis.
The formation of structural theory of state space is an important breakthrough in the theory of modern control theory in the 1960s and 1970s. The structural theory of state space includes controllability, visibility, feedback calibration, and input and output model. It along with the optimal control theory and Kalman filter theory, it has formed a rigorous and complete theoretical system. And amazing achievements have been made in applications such as aerospace and robotic control. However, these theories require that the model's model must be known, and most actual engineering systems run in a changing environment, it is impossible to obtain accurate mathematical models. Therefore, many theories have not been well effect in practical applications. By 1972, robust control This term is first proposed in the literature, but there is no consistent statement for its precise definition. Its main difference is that for the definition of the perturbation, many kinds of self-engineering, whether each perturbation is included in the robust study? Despite their disagreement, robust studies have not been hindered, and the momentum of its development has increased.
Robust Control Theory has developed to today, has formed a lot of leading theories. The control theory is the most successful and perfect theoretical system that is currently resolving robustness. Zames first proposed this famous theory for the first time in 1981, and he considers a control system for a single input single output system to design a controller to minimize the system for disturbance. In his 20 years after he proposed this theory, many scholars have developed this theory to make it a more extensive application. The current research hotspot in this theory is to control problems in non-linear systems. There are also some theories such as structural values, such as structural values, and interval theories.
The application of robust control theory is not only in industrial control, but it is widely used in many fields such as economic control, social management. As people have continuously improved control of the control effect, the robustness of the system will be more and more attention, so that this theory has developed faster.
