Microgrid modeling for contribution to the frequency control of power system

Ghafouri, Alireza

doi:10.1177/0309524x211050075

Cited by 1 publication

(1 citation statement)

References 31 publications

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“…Moreover, DGs create V-HD at the PCC as a result of harmonic currents needed by local nonlinear loads [46]. µGs with 1Ø may also use traditional passive/active filters for selective harmonic frequency adjustment [48][49][50][51]. Unfortunately, the mentioned filters raise the system's price and provide no further benefits to the µG except harmonic compensation.…”

Section: Introductionmentioning

confidence: 99%

Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review

Alhaiz,

Alsafran,

Almarhoon

2023

Energies

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Renewable distributed generators (RDGs) have made inroads in recent power systems owing to the environmental effect of traditional generators and their high consumption of electric energy. The widespread use of RDGs has been a recent trend in numerous nations. The integration complexity and the intermittent nature of RDGs can undermine the security and stability of microgrids (µGs). In order to guarantee the effectiveness, dependability, and quality of the electricity delivered, appropriate control methods are necessary. RDGs are being included in single-phase microgrids (1Ø-µGs) to generate energy closer to the user. The creation of low-voltage µGs allows for increased energy efficiency and improved electrical supply dependability. Nevertheless, the combined power pumped by DGs might create power quality (PQ) difficulties, especially during off-grid operations. The three biggest problems with PQ are reactive-power swapping, voltage and frequency (VαF) variations, and current and voltage (IαV) harmonic falsification associated with 1Ø-µGs; these conditions may affect the operation of µGs. The designed and implemented (primary–secondary control systems) in RDGs are the prevalent strategy discussed in the literature for mitigating these PQ difficulties. Furthermore, emerging grid innovations like the electrical spring offer viable alternatives that might reduce some problems through decentralized operation. Although several research studies have addressed PQ concerns in 3Ø-µGs, not all of these solutions are immediately applicable to their 1Ø equivalents. In this paper, the state of the art and a performance comparison of several PQ enhancement strategies of µGs is discussed. Additionally, the primary difficulties and several PQ approach tactics are highlighted. All vital features from high-quality published articles and new dimensions in this field are presented for mitigating PQ difficulties in 1Ø-µGs.

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