Risk based Uncertainty (RibUt) Assessment of a Power System Using Bootstrap Technique

There are various approach used to prevent from the occurrence of power system blackout in order to ensure the sustainability and efficiency of energy supply. Generally, power system blackout can be mitigated by referring to the risk assessment of a power system. This paper presents the risk assessment of a power system performed by using the proposed bootstrap technique and the fuzzy set technique. The risk of the system is measured by using the expected energy not supplied (EENS) index as well as the probability of load curtailment (PLC) index. The application of bootstrap technique is important to assess the risk indices at every level of system uncertainty. The 24-bus IEEE Reliability Test System (RTS) and 2737-bus Polish system are used as a case study in the analysis of risk based EENS and PLC. Comparative studies have been made on the risk assessment determined by using the proposed bootstrap technique and the fuzzy set technique.