Abstract

Modern power grids rely on hierarchical control architectures to achieve stable, secure, and economic operation, which involves various kinds of advanced measurement, communication, and control techniques. This chapter first introduces the traditional control methods in power systems and then introduces some state-of-the-art methods. The functional operation of a power system depends on its control systems. The chapter shortly introduces the hierarchies of traditional frequency and voltage controls. Fruitful progress has been made to combine advanced control and optimization theories with power system engineering. Two of the most promising topics among them are relieving the dependence on central coordinators and reshaping the original control hierarchy. The chapter briefly introduces the state of the art of these two innovative topics. It also presents an overview of the key concepts discussed in this book.

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