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Implementation of Under Voltage Load Shedding for Fault Induced Delayed Voltage Recovery Phenomenon Alleviation

  • Lee, Yun-Hwan ;
  • Park, Bo-Hyun ;
  • Oh, Seung-Chan ;
  • Lee, Byong-Jun ;
  • Shin, Jeong-Hoon ;
  • Kim, Tae-Kyun
  • Received : 2013.07.23
  • Accepted : 2013.10.23
  • Published : 2014.03.01

Abstract

Significant penetration of induction motor loads into residential neighborhood and commercial regions of local transmission systems at least partially determine a vulnerability to a fault induced delayed voltage recovery (FIDVR) event. Highly concentrated induction motor loads with constant torque could stall in response to low voltages associated with system faults. FIDVR is caused by wide spread stalling of small HVAC units (residential air conditioner) during transmission level faults. An under voltage load shedding scheme (UVLS) can be an effective component in a strategy to manage FIDVR risk and limit the any potential disturbance. Under Voltage Load Shedding take advantage of the plan to recovery the voltage of the system by shedding the load ways to alleviation FIDVR.

Keywords

Fault induced delayed voltage recovery;Under voltage load shedding;Stall phenomenon;Induction motor loads;Locked rotor current

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