Incorporating Modern Fault Ride-Through Standards into the Short-Circuit Calculation of Distribution Networks
Modern fault ride-through (FRT) standards in many countries require distributed generators to remain connected for a specified period during the fault by providing reactive current, to support voltage and prevent a massive renewable outage. As a result, short-circuit current is not constant, but it...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/21/8868 |
| _version_ | 1797631290030161920 |
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| author | Evangelos E. Pompodakis Yiannis Katsigiannis Emmanuel S. Karapidakis |
| author_facet | Evangelos E. Pompodakis Yiannis Katsigiannis Emmanuel S. Karapidakis |
| author_sort | Evangelos E. Pompodakis |
| collection | DOAJ |
| description | Modern fault ride-through (FRT) standards in many countries require distributed generators to remain connected for a specified period during the fault by providing reactive current, to support voltage and prevent a massive renewable outage. As a result, short-circuit current is not constant, but it varies depending on the current and disconnection order of distributed generators (DGs). This time-varying short-circuit current complicates the estimation of the time it will take for an overcurrent relay or fuse to trip. The existing short-circuit calculation algorithms usually assume that the fault current is constant throughout the whole period of fault. This assumption may result in incorrect conclusions regarding the tripping time of protective devices in networks with high renewable penetration. This paper incorporates modern FRT standards into the fault analysis by considering the influence of fault current variations on the protective devices (relays, fuses), significantly increasing the accuracy of the estimated tripping time. Simulations carried out in a 13-bus and the IEEE 8500-node network indicate that the traditional short-circuit calculation approaches may miscalculate the tripping time of protective devices, with deviations up to 80 s, when applied to networks complying with modern FRT standards. |
| first_indexed | 2024-03-11T11:21:44Z |
| format | Article |
| id | doaj.art-c9a1c46055e1446d86103acad0c95e4c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T11:21:44Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-c9a1c46055e1446d86103acad0c95e4c2023-11-10T15:12:28ZengMDPI AGSensors1424-82202023-10-012321886810.3390/s23218868Incorporating Modern Fault Ride-Through Standards into the Short-Circuit Calculation of Distribution NetworksEvangelos E. Pompodakis0Yiannis Katsigiannis1Emmanuel S. Karapidakis2Institute of Energy, Environment and Climatic Change, Hellenic Mediterranean University, 71004 Heraklion, GreeceSchool of Engineering, Power Systems and Energy Engineering, Hellenic Mediterranean University, 71004 Heraklion, GreeceSchool of Engineering, Power Systems and Energy Engineering, Hellenic Mediterranean University, 71004 Heraklion, GreeceModern fault ride-through (FRT) standards in many countries require distributed generators to remain connected for a specified period during the fault by providing reactive current, to support voltage and prevent a massive renewable outage. As a result, short-circuit current is not constant, but it varies depending on the current and disconnection order of distributed generators (DGs). This time-varying short-circuit current complicates the estimation of the time it will take for an overcurrent relay or fuse to trip. The existing short-circuit calculation algorithms usually assume that the fault current is constant throughout the whole period of fault. This assumption may result in incorrect conclusions regarding the tripping time of protective devices in networks with high renewable penetration. This paper incorporates modern FRT standards into the fault analysis by considering the influence of fault current variations on the protective devices (relays, fuses), significantly increasing the accuracy of the estimated tripping time. Simulations carried out in a 13-bus and the IEEE 8500-node network indicate that the traditional short-circuit calculation approaches may miscalculate the tripping time of protective devices, with deviations up to 80 s, when applied to networks complying with modern FRT standards.https://www.mdpi.com/1424-8220/23/21/8868distribution networksfault analysisfault ride-throughFRT standardsfuse melting timerelay tripping time |
| spellingShingle | Evangelos E. Pompodakis Yiannis Katsigiannis Emmanuel S. Karapidakis Incorporating Modern Fault Ride-Through Standards into the Short-Circuit Calculation of Distribution Networks Sensors distribution networks fault analysis fault ride-through FRT standards fuse melting time relay tripping time |
| title | Incorporating Modern Fault Ride-Through Standards into the Short-Circuit Calculation of Distribution Networks |
| title_full | Incorporating Modern Fault Ride-Through Standards into the Short-Circuit Calculation of Distribution Networks |
| title_fullStr | Incorporating Modern Fault Ride-Through Standards into the Short-Circuit Calculation of Distribution Networks |
| title_full_unstemmed | Incorporating Modern Fault Ride-Through Standards into the Short-Circuit Calculation of Distribution Networks |
| title_short | Incorporating Modern Fault Ride-Through Standards into the Short-Circuit Calculation of Distribution Networks |
| title_sort | incorporating modern fault ride through standards into the short circuit calculation of distribution networks |
| topic | distribution networks fault analysis fault ride-through FRT standards fuse melting time relay tripping time |
| url | https://www.mdpi.com/1424-8220/23/21/8868 |
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