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Power System Operation and Control by G. Sreenivasan, S. Sivanagaraju

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7

Load Frequency Control-I

OBJECTIVES

After reading this chapter, you should be able to be able to:

  • study the governing characteristics of a generator
  • study the load frequency control (LFC)
  • develop the mathematical models for different components of a power system
  • observe the steady state and dynamic analysis of a single-area power system with and without integral control
7.1 INTRODUCTION

In a power system, both active and reactive power demands are never steady and they continually change with the rising or falling trend. Steam input to turbo-generators or water input to hydro-generators must, therefore, be continuously regulated to match the active power demand, failing which the machine speed will vary with consequent change in frequency ...

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