Preventing voltage collapse by large SVCs at power system faults

This paper shows how the performance of a power grid in Saudi Arabia is improved by using SVCs to reduce the risk for voltage collapse at short circuits. Full SVCs capacity is needed during faults and for a short time following fault clearing for system recovery. It is shown that SVCs can handle the...

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Bibliographic Details
Main Authors: Al-Mubarak, A.H., Bamsak, S.M., Thorvaldsson, B., Halonen, M., Grunbaum, R.
Format: Conference Proceeding
Language:English
Subjects:
Circuit faults
Control design
Ground support
Induction motors
Inductors
Motor stalling
Operational experience
Phase locked loops
PLL
Power system faults
Reactive power
Speed of response
Static VAr compensators
Substations
SVC
Temporary overvoltage
Voltage control
Voltage recovery
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Summary:This paper shows how the performance of a power grid in Saudi Arabia is improved by using SVCs to reduce the risk for voltage collapse at short circuits. Full SVCs capacity is needed during faults and for a short time following fault clearing for system recovery. It is shown that SVCs can handle the phase jumps at fault inception and clearing. The paper also deals with control stability for large SVCs in weak networks.
DOI:10.1109/PSCE.2009.4840189