Frequency stability enhancement in power system using High-Order Sliding Mode Control

Abdelmoumene, Delassi; Arif, Salem; Mokrani, L.

doi:10.1109/intee.2015.7416743

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…In fact, the frequency stability is considered as a critical issue for secure power system operation [6]. Therefore, a large number of studies on power system frequency stability have been performed over the last ten years, for example, frequency stability evaluation and control [7], the determination of frequency stability border of power system operation [8], the enhancement strategies to improve power system frequency stability [9,10], and the impact of renewable energy generation on frequency stability [11][12][13]. Although the frequency stability has been studied for many years, these studies mentioned above are primarily concerned with the ability of power system to maintain the steady frequency after a severe disturbance [14].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Power Grid Frequency Deviation on Time Error of Synchronous Electric Clock and Worldwide Power System Practices on Time Error Correction

et al. 2017

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Synchronous electric clocks utilize power grid frequency as their timing reference. Power grid frequency deviation away from its nominal value results in synchronous electric clocks running fast or running slow (also known as the time error). In this article, statistical analysis on time error of synchronous electric clocks around the world is firstly presented using the power grid frequency measurements recorded by the wide-area frequency monitoring network FNET/GridEye. Then, the time error correction (TEC) process provided by electric utilities is analyzed and the worldwide TEC practice is investigated. Eventually, regions of the world where electric utilities provide TEC service are differentiated from those without TEC services. Analytical results demonstrate that the average time error of synchronous electric clocks in North America seems to be less than five seconds, and it has not changed very much over the past few years. On the other hand, the identification results present that up to the end of 2016, many electric utilities around the world, especially in North America and Europe, provided the TEC service to periodically remove the accumulative time error of synchronous electric clocks.

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