Design of controllers by indices of precision and speed. III. Control-stable multidimensional plants

A method to design controllers satisfying the requirements on precision and speed of each controlled variable was proposed. Additionally, a way was indicated to attain the given radius of stability margins simultaneously for physical input and output of the control plant at opening the closed-loop system by individual loops. Solution of the problem relied on the diagonal dominance of the transfer matrix of the closed-loop system – from external perturbation to the controlled variable – provided by the controller.