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| Content Provider | IET Digital Library |
|---|---|
| Author | Zare, Mina Rezaei Ariannik, Mohamadreza Zare, Afshin Rezaei |
| Abstract | This study proposes an approach for the fast and accurate identification of the vulnerable areas of the power system to geomagnetic disturbance (GMD). The proposed method can be used for real-time situational awareness and preparedness in power system control rooms and proactive mitigation of the GMD threats. In addition, it can be employed as an off-line GMD vulnerability assessment tool for power system planning analysis. In this study, a generalised mathematical basis is presented to find the maximum geomagnetically induced current (GIC) flow in the multi-zone earth structure based on the orthogonal GIC components. Furthermore, a real-time frequency estimation method is developed based on wavelet transform to estimate the frequency of the geomagnetic waveform for the maximum GIC calculation. The proposed approach is applied to the Ontario 500 and 230 kV transmission systems to identify the vulnerable equipment. The results are also compared with the angle sweep results. The numerical results reveal that not only the proposed method is more accurate but also significantly faster than the angle sweep method. Such prominent features introduce the proposed approach as a preferable method for real-time applications and optimisation of power system operation during GMDs. |
| Starting Page | 3838 |
| Ending Page | 3845 |
| Page Count | 8 |
| ISSN | 17518687 |
| Volume Number | 14 |
| e-ISSN | 17518695 |
| Issue Number | Issue 18, Sep (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/14/18 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1871 |
| Journal | IET Generation, Transmission & Distribution |
| Publisher Date | 2020-06-16 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | A.c. Transmission Angle Sweep Method Angle Sweep Result Frequency Estimation Function Theory And Analysis Geomagnetic Disturbance Geomagnetic Waveform Geomagnetically Induced Current Flow GMD Threats Integral Transforms in Numerical Analysis Magnetic Storms Magnetospheric Magnetic Storms, Substorms Maximum GIC Calculation Multizone Earth Structure Off-line GMD Ontario Transmission System Orthogonal GIC Component Power Grid Power System Control Power System Operation Power System Planning Analysis Power System Planning And Layout Power System Protection Power Transmission Fault Power Transmission Planning Power Transmission Protection Proactive Mitigation Real Time System Real-time Detection Real-time Frequency Estimation Method Real-time Situational Awareness Statistics Transmission System Voltage 230.0 KV Voltage 500 KV Vulnerability Assessment Tool Vulnerable Equipment Vulnerable Power System Areas Wavelet Transform |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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