What is H2 and H-infinity?

The H2 and H-infinity control theories involve suppressing the sensitivity matrix transfer function at the lower frequencies for high gain performance and suppressing the transmissivity at higher frequencies, i.e., loop shaping. the first design is an optimum design which imposed no limitations on control input.

What is the H-infinity control problem?

The problem involved is the general H-infinity control problem, the so-called standard problem. It concerns the construction of a stabilizing controller with additional constraints on the maximum of the norm of the closed loop transfer function, taken over the values of the argument on the imaginary line.

What is H2 control?

The H2 control problem: a general transfer-function solution The H2 control problem consists of internally stabilizing the control system while minimizing the H2 norm of its transfer function. In this manner, the optimal control system is devoid of impulsive as well as non-decaying exponential modes.

What is the difference between robust control and adaptive control?

Adaptive control is different from robust control in that it does not need a priori information about the bounds on these uncertain or time-varying parameters; robust control guarantees that if the changes are within given bounds the control law need not be changed, while adaptive control is concerned with control law …

How does Lqr work?

The LQR algorithm reduces the amount of work done by the control systems engineer to optimize the controller. However, the engineer still needs to specify the cost function parameters, and compare the results with the specified design goals.

What is MU synthesis?

The technique of μ synthesis extends the methods of H∞ synthesis to design a robust controller for a SISO or MIMO uncertain plant. musyn uses an iterative process called D-K iteration to optimize the robust H∞ performance of the system. To get started with μ synthesis, see Robust Controller Design Using Mu Synthesis.