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Power System Analysis by N. V. Ramana

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CHAPTER 4

Power Flow Studies—1

4.1 Introduction

Satisfactory operation of complex, large and interconnected (grid-operated) power systems requires power flow (commonly called load flow) computer programs. The power flow study program evaluates and analyzes the system under balanced three-phase steady state conditions.

4.1.1 Basic Applications of Power Flow Studies and its Significance in Power System Operation and Control:

  1. To set the active power generation according to economic-dispatch practice for a given set of active power loads at the bus-bars and transmission loss.
  2. To set the reactive power generation and transmission in order to maintain the bus voltage magnitudes close to the rated values.
  3. To verify that generators operate within ...

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