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Power-flow calculation

Power-flow calculation

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This chapter describes the classical methods for power-flow computation in transmission and distribution networks. The efficiency of the power-flow algorithm has crucial impact on the efficiency and robustness of methods in the functions ensuring optimal operation and planning of transmission and distribution networks. In this context, this chapter presents an introduction in the next chapters related to the optimal power flow in transmission and distribution networks, optimal reactive power dispatch, optimal siting and sizing of distributed generation in distribution networks, etc.

Chapter Contents:

  • 5.1 Introduction
  • 5.2 Power-flow calculation in transmission networks
  • 5.2.1 Power-flow equations
  • 5.2.2 Bus classification
  • 5.2.3 Solution methods
  • 5.2.3.1 Gauss–Seidel method
  • 5.2.3.2 Newton–Raphson method
  • 5.2.3.3 Fast decoupled power-flow method—Stott method
  • 5.2.4 Power-flow software—pfgui
  • 5.3 Power-flow calculation in distribution networks
  • 5.3.1 Backward/forward sweep power-flow algorithm
  • 5.3.1.1 DG units treatment
  • 5.3.2 Power-flow software—pfdngui
  • 5.4 Conclusion
  • References

Inspec keywords: power distribution planning; power transmission planning; load flow

Other keywords: distribution network planning; power-flow calculation method; optimal reactive power dispatch; distributed generation; optimal siting; optimal sizing; transmission network planning

Subjects: Power system planning and layout; Power transmission, distribution and supply

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