Substation Bus Voltage Angle Calculation Method Using Voltage Angle Difference Measured at the Tie Switch in the Distribution Line

배전선로 상시연계점 측정 전압 위상차를 이용한 변전소 모선 위상각 추정 방법

Son, Ju-Hwan;Lim, Seong-Il

  • Received : 2015.09.19
  • Accepted : 2015.12.17
  • Published : 2016.01.01


Distribution networks are operated in radial fashion during the normal state. Loop configuration is also required temporally in case of live load transfer among the adjacent feeders. Voltage angles of each substation buses are very important data in order to calculate power flow of the loop structured distribution feeders. This paper proposes substation bus voltage angle calculation method using voltage angle difference measured at the normally open tie switches. Simulation case studies using Matlab simulink have been performed to establish feasibility of proposed method.


Substation bus voltage angle;Loop structured distribution system;Power flow calculation


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