Study on the Improvement of the Special Protection Scheme (SPS) in the Korean power system

Jeonghoon Shin; Suchul Nam; Seung-Tae Cha; Jaegul Lee; Taekyun Kim; Junyoen Kim; Taeok Kim; Hwachang Song

Study on the Improvement of the Special Protection Scheme (SPS) in the Korean power system

Jeonghoon Shin, Suchul Nam, Seung-Tae Cha, Jaegul Lee, Taekyun Kim, Junyoen Kim, Taeok Kim, Hwachang Song

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

This paper deals with the improvement of the special protection scheme (SPS) which has been applied to the low probability and high impact contingencies in the Korean power system since 2004. Simulation results about the recent event occurred on 765kV lines show that the current setting values of the SPS have to be revised and enhanced. In addition, by applying response-based undervoltage load shedding (UVLS) schemes with multi-step to severe contingencies in the system, we can have more effective results than those of the existing SPS. A centralized and a distributed UVLS schemes are considered in the simulation. ULTC based load recovery models and over excitation limiters (OXL) for the Korean power system are also included in the long term voltage stability analysis.
Keyword: Voltage Stability Analysis,Under Voltage Load Shedding,Special Protection Scheme

Original language	English
Title of host publication	Power Systems Transients
Publication date	2009
Publication status	Published - 2009
Externally published	Yes
Event	International Conference on Power Systems Transients 2009 - Kyoto, Japan Duration: 2 Jun 2009 → 6 Jun 2009 http://www.ipst.org/ipst09sum.htm

Conference

Conference	International Conference on Power Systems Transients 2009
Country/Territory	Japan
City	Kyoto
Period	02/06/2009 → 06/06/2009
Internet address	http://www.ipst.org/ipst09sum.htm

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title = "Study on the Improvement of the Special Protection Scheme (SPS) in the Korean power system",

abstract = "This paper deals with the improvement of the special protection scheme (SPS) which has been applied to the low probability and high impact contingencies in the Korean power system since 2004. Simulation results about the recent event occurred on 765kV lines show that the current setting values of the SPS have to be revised and enhanced. In addition, by applying response-based undervoltage load shedding (UVLS) schemes with multi-step to severe contingencies in the system, we can have more effective results than those of the existing SPS. A centralized and a distributed UVLS schemes are considered in the simulation. ULTC based load recovery models and over excitation limiters (OXL) for the Korean power system are also included in the long term voltage stability analysis. Keyword: Voltage Stability Analysis,Under Voltage Load Shedding,Special Protection Scheme",

author = "Jeonghoon Shin and Suchul Nam and Seung-Tae Cha and Jaegul Lee and Taekyun Kim and Junyoen Kim and Taeok Kim and Hwachang Song",

year = "2009",

language = "English",

booktitle = "Power Systems Transients",

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TY - GEN

T1 - Study on the Improvement of the Special Protection Scheme (SPS) in the Korean power system

AU - Shin, Jeonghoon

AU - Nam, Suchul

AU - Cha, Seung-Tae

AU - Lee, Jaegul

AU - Kim, Taekyun

AU - Kim, Junyoen

AU - Kim, Taeok

AU - Song, Hwachang

PY - 2009

Y1 - 2009

N2 - This paper deals with the improvement of the special protection scheme (SPS) which has been applied to the low probability and high impact contingencies in the Korean power system since 2004. Simulation results about the recent event occurred on 765kV lines show that the current setting values of the SPS have to be revised and enhanced. In addition, by applying response-based undervoltage load shedding (UVLS) schemes with multi-step to severe contingencies in the system, we can have more effective results than those of the existing SPS. A centralized and a distributed UVLS schemes are considered in the simulation. ULTC based load recovery models and over excitation limiters (OXL) for the Korean power system are also included in the long term voltage stability analysis. Keyword: Voltage Stability Analysis,Under Voltage Load Shedding,Special Protection Scheme

AB - This paper deals with the improvement of the special protection scheme (SPS) which has been applied to the low probability and high impact contingencies in the Korean power system since 2004. Simulation results about the recent event occurred on 765kV lines show that the current setting values of the SPS have to be revised and enhanced. In addition, by applying response-based undervoltage load shedding (UVLS) schemes with multi-step to severe contingencies in the system, we can have more effective results than those of the existing SPS. A centralized and a distributed UVLS schemes are considered in the simulation. ULTC based load recovery models and over excitation limiters (OXL) for the Korean power system are also included in the long term voltage stability analysis. Keyword: Voltage Stability Analysis,Under Voltage Load Shedding,Special Protection Scheme

M3 - Article in proceedings

BT - Power Systems Transients

T2 - International Conference on Power Systems Transients 2009

Y2 - 2 June 2009 through 6 June 2009

ER -

Study on the Improvement of the Special Protection Scheme (SPS) in the Korean power system

Abstract

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