Impact of the Charging Station on the Quality of Voltage and Frequency in the Microgrid

Authors

  • Hong Nhung Le Thi Ho Chi Minh City University of Technology and Education, Vietnam https://orcid.org/0009-0001-9224-5640
  • Trieu Tan Phung Cao Thang Technical College, Ho Chi Minh city, Vietnam https://orcid.org/0000-0001-9617-6008
  • Hoang Minh Vu Nguyen Ho Chi Minh City University of Architecture, Vietnam
  • Ngoc Thuong Huynh Thi Ho Chi Minh City University of Technology and Education, Vietnam https://orcid.org/0009-0006-9869-7783
  • Mi Sa Nguyen Thi Ho Chi Minh City University of Technology and Education, Vietnam

Corressponding author's email:

nhunglth@hcmute.edu.vn

DOI:

https://doi.org/10.54644/jte.2024.1557

Keywords:

Electric Vehicle (EV), Security analysis, Quality of Voltage and Frequency, Electric Vehicle Charging Station (EVCS), Microgrid

Abstract

This paper presents the impacts of Electric Vehicle Charging Stations (EVCSs) on voltage and frequency quality in the Microgrid. It addresses security analysis, voltage and frequency quality, as well as issues related to EVCSs. In this paper, modeling and simulation method is utilized to evaluate the impact of Charging Stations (CSs) in Microgrid power systems using PowerWorld software. Potential attacks may occur when malicious actors intrude and control the operating states of CSs in the power grid, as well as potential vulnerabilities in the process of using EVs in Microgrid, are simulated and analyzed. Based on this, the paper proposes power grid attack scenarios based on charging/discharging operations with a large number of EVs on generator buses. Simulation results show the negative impacts of charging/discharging operations on the grid through frequency and voltage fluctuations. Specifically, from the simulation results, it can be observed that Bus 8 is not suitable for installing a charging station due to its weak stability at all power levels. Furthermore, the remaining generator buses can only accommodate charging stations with power levels starting from 30% of the proposed initial capacity to maintain system stability.

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Author Biographies

Hong Nhung Le Thi, Ho Chi Minh City University of Technology and Education, Vietnam

Le Thi Hong Nhung, Master of Electrical and Electronics Department, Ho Chi Minh City University of Technology and Education. She is currently a lecturer in the Department of Fundamentals of Electrical Engineering. In 2006, she graduated from the University with a major in Electrical Engineering - Power Supply, at the Ho Chi Minh City University of Technology Education. Then in 2008, she graduated with a Master's degree in Network Equipment & Power Plants, also from the same university. Since 2010, she has been researching in the fields of Circuit Analysis and Application, and Load Shedding. Her research focuses on applying intelligent algorithms such as ANN, Fuzzy, AHP in the aspect of power system. In addition, she has also conducted some research on robotics and signal processing.

Email: nhunglth@hcmute.edu.vn. ORCID:  https://orcid.org/0009-0001-9224-5640

Trieu Tan Phung, Cao Thang Technical College, Ho Chi Minh city, Vietnam

Phung Trieu Tan received his M.Sc. degree in electrical engineering from Ho Chi Minh City University of Technology and Education (HCMUTE), Vietnam, in 2020. Currently, he is a lecturer in the Faculty Electrical and Electronics Engineering, Cao Thang Technical College. His main areas of research interests are Artificial Neural Network, Load Shedding in power systems.

Email: phungtrieutan@caothang.edu.vn. ORCID:  https://orcid.org/0000-0001-9617-6008

Hoang Minh Vu Nguyen, Ho Chi Minh City University of Architecture, Vietnam

Nguyen Hoang Minh Vu received his PhD degree in electrical engineering from Ho Chi Minh City University of Technology and Education, Vietnam. Currently, he is a Vice Rector, University of Architecture Ho Chi Minh City. His main areas of research interests are Microgrid, Sustainable Development, Urban Planning.

Email: vu.nguyenhoangminh@uah.edu.vn. ORCID:  https://orcid.org/0000-0002-2200-6791

Ngoc Thuong Huynh Thi, Ho Chi Minh City University of Technology and Education, Vietnam

Huynh Thi Ngoc Thuong received her M.Sc. degree in electrical engineering from Ho Chi Minh City University of Technology, Vietnam, in 2003. Currently, she is a lecturer in the Faculty Electrical and Electronics Engineering, HCMUTE. Her main areas of research interests are distribution network, electric drive and microgrid.

Email: thuonghtn@hcmute.edu.vn. ORCID:  https://orcid.org/0009-0006-9869-7783

Mi Sa Nguyen Thi, Ho Chi Minh City University of Technology and Education, Vietnam

Nguyen Thi Mi Sa was born in Da Lat City, Viet Nam, on April 24, 1984. She received the Ph.D. degree  from the Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan. She is currently pursuing the Ph.D. degree at the Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, in 2013. Currently, she is a lecturer in the Faculty Electrical and Electronics Engineering, Ho Chi Minh City University of Technology and Education. Her research interests are simulations of wind energy conversion systems connected to power grid. Email: misa@hcmute.edu.vn. ORCID:  https://orcid.org/0009-0008-6597-7492

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Published

28-04-2024

How to Cite

[1]
Hong Nhung Le Thi, Trieu Tan Phung, Hoang Minh Vu Nguyen, Ngoc Thuong Huynh Thi, and Mi Sa Nguyen Thi, “Impact of the Charging Station on the Quality of Voltage and Frequency in the Microgrid”, JTE, vol. 19, no. Special Issue 02, pp. 77–89, Apr. 2024.