Robustness analysis and design for fast following synchronizer of generators by using reversed reframe normalizing method

The problem of robustness for a fast following synchronizer of generators is reduced to a two-input/two-output multivariable system with interval parameters in the frequency domain. The uncertainty considered is the unstructured uncertainty. The reversed frame normalizing method is employed to analyze and design the robustness compensator for the fast following synchronizer of generators. In comparison with the solution from single-input/single-output design, it is shown that the interaction between two loops could not be ignored. Numerical simulation shows that the requirements of stability, dynamic performance for the fast following synchronizer, and stability robustness could be considered simultaneously