Power System Operation and Control

2

Economic Load Dispatch-I

OBJECTIVES

After reading this chapter, you should be able to:

• study the different characteristics of steam and hydro-power generation units

• know the meaning of economical load dispatch

• develop the mathematical model for economical load dispatch

• discuss the different computational methods for optimization

2.1 INTRODUCTION

Power systems need to be operated economically to make electrical energy cost-effective to the consumer in the face of constantly rising prices of fuel, wages, salaries, etc. New generator-turbine units added to a steam power plant operate more efficiently than other older units. The contribution of newer units to the generation of power will have to be more. In the operation of power systems, ...