Norazliani, Md Sapari and Hazlie, Mokhlis and Javed, Ahmed Laghari and Halim, Abu Bakar and Hasmaini, Mohamad and Mohd Rohaimi, Mohd Dahalan (2016) Load shedding scheme based on frequency and voltage stability for an islanding operation of a distribution network connected to mini-hydro generation. Turkish Journal of Electrical Engineering and Computer Sciences, 25 (3). pp. 1852-1863. ISSN 1300-0632. (Published)
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Abstract
This paper presents a load shedding scheme (LSS) based on system frequency and voltage stability (VS). In the proposed scheme, the amount of power imbalance is determined using a rate of change of frequency, and the load shedding priority is carried out based on a VS index. The load with the highest tendency for voltage collapse (based on the index value) is given first priority to be shed. Thus, by shedding the most sensitive load, the distribution system can be saved from power collapse and then the system can return to its nominal state after load shedding. The proposed LSS is validated through simulation using PSCAD/EMTDC software on a Malaysian distribution network that consists of two mini-hydro generators. The simulation results show that the proposed scheme manages to shed the optimal amount of load when compared to conventional and adaptive frequency LSS. Moreover, apart from frequency stability, the proposed scheme also shows a significant improvement in the voltage profile of the islanded system.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Underfrequency load shedding; Islanding; Voltage stability index; Load prioritization; Distributed generation; Renewable energy |
| Subjects: | T Technology > T Technology (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Engineering Technology Institute of Postgraduate Studies |
| Depositing User: | Mrs Norsaini Abdul Samat |
| Date Deposited: | 23 Mar 2020 03:10 |
| Last Modified: | 23 Mar 2020 03:10 |
| URI: | http://umpir.ump.edu.my/id/eprint/27025 |
| Download Statistic: | View Download Statistics |
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