International Journal on Advanced Science, Engineering and Information Technology, Vol. 8 (2018) No. 4, pages: 1173-1178, DOI:10.18517/ijaseit.8.4.6508

Evaluation of Demand Response on System Reliability and Cable Aging

D B Nugraha, K Kopsidas, S Liu, M Abogaleela

Abstract

Emergency loading implementation brings reliability and flexibility benefits to the operator. However, its application results in higher cable temperature, which may lead to increase of aging risk. Furthermore, demand response (DR) option can clip the customer loads and shift them to a different period. The DR clipping process reduces the loading of the network to avoid cable overheating and reduce its aging risk. The study aims to evaluate the impact of DR in increasing the reliability of the system as well as reducing the aging of the network. The proposed DR is implemented in the cable-based transmission network, as a complementary of emergency loading, by taking into account the large thermal inertia of the cable. It uses cable temperature elevation as the trigger as an alternative to demand level trigger, which is the traditional approach. The evaluation uses Sequential Monte Carlo Simulation (SMCS) on the IEEE 14 Bus Reliability Test System. The implementation of temperature-based DR reduces the network aging by 3% as well as expected energy not supplied by 34% compared to the emergency loading only.

Keywords:

cable ageing; mergency rating; demand response; sequential monte carlo simulation; reliability

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