Power System Operation & Control - Introduction

Introduction to Power System Operation & Control

    In general, each generating plant in any power system may have more than one generating unit. Each of the unit may have identical or different capacities. A number of power plants can be tied together to supply the system loads by means of interconnection of the generating stations.

    Interconnected electric power system is more reliable, and convenient to operate and also offers economical operating cost. It offers better regulation characteristics, since a load change in any of the area is taken care of by all units in the interconnection. The loss of a generating unit in one of the areas can be compensated by spinning reserve to meet the required load continuously.

    In planning a power system, it is necessary to select suitable types of plant, and choose their sizes so that the overall cost of the energy delivered at the load centers to the consumers is minimum. Thus, the economic operation of the power system involves the selection of suitable generating unit, to satisfy the power demand for the energy supplied.

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