ABSTRACT

The offer of good quality energy to the consumer at any time and in any place is of major concern of the owners of electrical supply networks. The electric transport of power meets a multitude of problems such as active losses on lines and transformers. The common objective of control coordination is to control and minimize the active losses in electrical supply networks. The coordinated control scheme is increasingly important for the secure operation of power system. Large-scale power systems tend to operate in varying conditions and suffer from unpredictable disturbances, which cause different stability problems. When power systems are subjected to a severe contingency, the unstable phenomena may occur simultaneously or in a sequence. Three major stability categories, namely, transient stability, small signal stability, and voltage stability, are very important in dynamic security assessment of power systems. The general diagram of optimal control coordination from literature is represented in Figure 13.1.