Microgrid dynamic security consideringhigh penetration of renewable energy

G. Magdy; Emad A. Mohamed; G. Shabib; Adel A. Elbaset; Yasunori Mitani

doi:10.1186/s41601-018-0093-1

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Microgrid dynamic security consideringhigh penetration of renewable energy

Original Research | 更新时间：2026-09-30

- Microgrid dynamic security consideringhigh penetration of renewable energy
- Protection and Control of Modern Power Systems Vol. 3, Issue 3, Pages: 1-11(2018)
- 作者机构：
  
  1. Department of Electrical Engineering, Kyushu Institute of Technology, Kitakyushu-, Fukuoka,shi,Japan
  2. Department of Electrical Engineering, Faculty of Energy Engineering, Aswan University,Aswan,Egypt
  3. Higher Institute of Engineering and Technology,Alexandria,Egypt
  4. Department of Electrical Engineering, Faculty of Engineering, Minia University, Minia,Egypt
- 作者简介：
- 基金信息：
- DOI：10.1186/s41601-018-0093-1
  CLC：
- Published：01 July 2018
- 稿件说明：
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G. Magdy, Emad A. Mohamed, G. Shabib, et al. Microgrid dynamic security consideringhigh penetration of renewable energy[J]. Protection and Control of Modern Power Systems, 2018, 3(3): 1-11.
DOI：

G. Magdy, Emad A. Mohamed, G. Shabib, et al. Microgrid dynamic security consideringhigh penetration of renewable energy[J]. Protection and Control of Modern Power Systems, 2018, 3(3): 1-11. DOI： 10.1186/s41601-018-0093-1.

摘要

This paper presents a coordination strategy of Load Frequency Control (LFC) and digital frequency protection for an islanded microgrid (MG) considering high penetration of Renewable Energy Sources (RESs). In such MGs

the reduction in system inertia due to integration of large amount of RESs causes undesirable influence on MG frequency stability

leading to weakening of the MG. Furthermore

sudden load events

and short circuits caused large frequency fluctuations

which threaten the system security and could lead to complete blackouts as well as damages to the system equipment. Therefore

maintaining the dynamic security in MGs is one of the important challenges

which considered in this paper using a specific design and various data conversion stages of a digital over/under frequency relay (OUFR). The proposed relay will cover both under and over frequency conditions in coordination with LFC operation to protect the MG against high frequency variations. To prove the response of the proposed coordination strategy

a small MG was investigated for the simulation. The proposed coordination method has been tested considering load change

high integration of RESs. Moreover

the sensitivity analysis of the presented technique was examined by varying the penetration level of RESs and reducing the system inertia. The results reveal the effectiveness of the proposed coordination to maintain the power system frequency stability and security. In addition

the superiority of the OUFR has been approved in terms of accuracy and speed response during high disturbances.

Abstract

the reduction in system inertia due to integration of large amount of RESs causes undesirable influence on MG frequency stability

leading to weakening of the MG. Furthermore

sudden load events

and short circuits caused large frequency fluctuations

which threaten the system security and could lead to complete blackouts as well as damages to the system equipment. Therefore

maintaining the dynamic security in MGs is one of the important challenges

a small MG was investigated for the simulation. The proposed coordination method has been tested considering load change

high integration of RESs. Moreover

the superiority of the OUFR has been approved in terms of accuracy and speed response during high disturbances.

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references

20. Meier, S., Kunsman, S. ( 2016 ). Protection and control system impacts from the digital world. Electric Energy TD Magazine , 12–15. [Online ] . Available: http://www.electricenergyonline.com/show_article.php?mag=117article=996.

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