Abstract
Power system security assessment based on the concept of risk is required in the current power environment. In risk based security assessment, the likelihood and severity of security violation are the two main factors that determine the security level of a power system. To evaluate likelihood of security violation, the probability technique based on Poisson probability distribution function is adopted. Severity function signifies the extent of security violation. Two types of severity functions, namely the continuous and percentage of violation severity functions are considered in this study. This paper presents the assessment of risk of line overload at various loading condition using a risk index. A risk classification technique is also proposed so as to provide a qualitative interpretation of the risk index value by classifying the risk as low, medium and high degree of risk. This paper presents the implementation of line overload security assessment on the IEEE 24 bus test system and practical interconnection power system so as to investigate the effect of severity functions on risk classification in risk assessment. Results are presented in terms of risk index curves.
| Original language | English |
|---|---|
| Pages (from-to) | 182-191 |
| Number of pages | 10 |
| Journal | WSEAS Transactions on Power Systems |
| Volume | 5 |
| Issue number | 3 |
| Publication status | Published - 01 Dec 2010 |
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All Science Journal Classification (ASJC) codes
- Cultural Studies
- Anthropology
- Sociology and Political Science
- Urban Studies
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Assessment and classification of line overload risk in power systems considering different types of severity functions. / Marsadek, Marayati; Mohamed, Azah; Norpiah, Zulkifi Mohd.
In: WSEAS Transactions on Power Systems, Vol. 5, No. 3, 01.12.2010, p. 182-191.Research output: Contribution to journal › Article
TY - JOUR
T1 - Assessment and classification of line overload risk in power systems considering different types of severity functions
AU - Marsadek, Marayati
AU - Mohamed, Azah
AU - Norpiah, Zulkifi Mohd
PY - 2010/12/1
Y1 - 2010/12/1
N2 - Power system security assessment based on the concept of risk is required in the current power environment. In risk based security assessment, the likelihood and severity of security violation are the two main factors that determine the security level of a power system. To evaluate likelihood of security violation, the probability technique based on Poisson probability distribution function is adopted. Severity function signifies the extent of security violation. Two types of severity functions, namely the continuous and percentage of violation severity functions are considered in this study. This paper presents the assessment of risk of line overload at various loading condition using a risk index. A risk classification technique is also proposed so as to provide a qualitative interpretation of the risk index value by classifying the risk as low, medium and high degree of risk. This paper presents the implementation of line overload security assessment on the IEEE 24 bus test system and practical interconnection power system so as to investigate the effect of severity functions on risk classification in risk assessment. Results are presented in terms of risk index curves.
AB - Power system security assessment based on the concept of risk is required in the current power environment. In risk based security assessment, the likelihood and severity of security violation are the two main factors that determine the security level of a power system. To evaluate likelihood of security violation, the probability technique based on Poisson probability distribution function is adopted. Severity function signifies the extent of security violation. Two types of severity functions, namely the continuous and percentage of violation severity functions are considered in this study. This paper presents the assessment of risk of line overload at various loading condition using a risk index. A risk classification technique is also proposed so as to provide a qualitative interpretation of the risk index value by classifying the risk as low, medium and high degree of risk. This paper presents the implementation of line overload security assessment on the IEEE 24 bus test system and practical interconnection power system so as to investigate the effect of severity functions on risk classification in risk assessment. Results are presented in terms of risk index curves.
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M3 - Article
AN - SCOPUS:79952341113
VL - 5
SP - 182
EP - 191
JO - WSEAS Transactions on Power Systems
JF - WSEAS Transactions on Power Systems
SN - 1790-5060
IS - 3
ER -