Basic concept of interconnected power system

Basic concept of interconnected power system

Here Present the knowledge about the basic concept of interconnected power system. 

Definition: the connection of number of power generating station in parallel is know as interconnected power system.

  • The main requirement of any power system is to give an uninterrupted power supply.
  • In some parts of the contry there are resources of generating power but their requirements is low where as in other parts power requirements is large as compared to available resources of power.
  • These above difficulties can be reduced by interconnecting different power station in parallel.
  • Inter Connected power system is basically an interconnection of the buses of more than one generating station.
  • It is also defined as a distribution system with multiple available power sources that can loop throughout the network.
  • If one source goes down, a different source can be activated to maintain service.


  • This figure shows the interconnected power system having two power generating station G1 and G2 supplying current I1 and I2 to the load through transmission line 1 and 2 in addition to their local load.
  • The power generating stations are also interconnected by transmission line, which is carrying the current I1.
  • In both transmission line deliver equal power and the system operates at the same terminal voltage, it is neccessary that the active components of the line currents of the line currents I1 and I2 are equal.

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