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Hybrid Three-Phase Power Flow Analysis Method for Ungrounded Distribution Systems

  • US 20130204556A1
  • Filed: 02/06/2012
  • Published: 08/08/2013
  • Est. Priority Date: 02/06/2012
  • Status: Active Grant
First Claim
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1. A method for a three phase power flow analysis of an ungrounded power distribution system, comprising:

  • partitioning a topology of the power distribution system into a mainline system and a set of tap systems, wherein the mainline system is formed by mainline buses connecting a swing bus and a set of constant active power and voltage magnitude (PV) buses, wherein the tap system is formed by one or many tap buses, such that a root bus of each tap system corresponds to a mainline bus;

    determining voltages of the mainline buses based on a function of a total load of each tap system; and

    determining voltages of tap buses based on a voltage of the corresponding root bus of the mainline and load of each tap bus, wherein steps of the method are performed by a processor.

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