Increase of size and complexity, increase of diversity in generation/load, variable nature of renewable energy sources, and continues change of structure (uncertainty) are known as some important characteristics of new power (smart) grids. These characteristics introduce robust control techniques as more powerful and suitable control tools for control analysis/ synthesis problems in these grids. However, there are some important challenges in application of robust control theorems in modern power systems. In this presentation, main challenges are discussed and probable solutions are given to fill the existing gap between the power of robust control theorems and smart grid control designs. The present speech addresses some new methodologies to design of low order robust controllers applicable in various control level of modern power grids. The presentation is supplemented by illustrative examples.
