Welcome to CIGRE SEERC

2nd SEERC Workshop

Resilience of Electrical Grids:

"State of Arts, Best Practices and Operation Aspects"

Virtual Meeting January 26, 2021 (10.00-13.00)

Chair: Massimo Pompili Co-chair: Kresimir Bakic Moderator: to be agreed

Objective and topics

Unexpected extreme events ranging from cyber-security attacks, adverse weather conditions and other natural disasters, combined with changes in power system and generation technology, consumer behavior, and energy policy targets to decarbonize the electrical sector, increasingly impose serious risks to electric generation, transmission, and distribution systems. In proactive management of such risks and to assure a continuous, reliable, and affordable supply of energy, power transmission and distribution system operators are continuously engaged in development and deployment of innovative technologies that can help ensure a higher resilience of their systems during such events.
The 1st SEERC Workshop “Resilience of Electrical Grid: Events and Solutions” Resilience of Electrical Power and Energy Networks” has been held at the University of Roma “La Sapienza” on January 26, 2018 and concerned general aspects of electrical resilience from SEERC prospective.


The 2nd SEERC Workshop will take place in the same day as in 2018 but in virtual mode, considering the worldwide pandemic situation. This event will be mainly devoted to “State of Art, Best Practices and Operational Aspects” of Electrical Resilience.
The workshop is devoted to electrical community, engineers, and researchers, to present their findings, research and experiences in the field lying within, but not limited to, the following topics (medium and high voltages): • Operational aspects of resilience • Critical infrastructure resilience to extreme events • Current system planning methods and asset management standards used for power system infrastructure investments by system operators • Effects of adverse weather conditions and other natural disasters on electrical systems • Cyber-security attacks and power grid resilience • Prevention, recovery, and survivability of electrical systems in case of extreme events • Innovations in drafting standards, construction guidelines, maintenance routines, inspection procedures, and recovery practices of electrical systems • Enhanced resilience through energy storage deployment and microgrids • Emergency response and early warning technologies for electrical resilience


Call for participation


We kindly invite all National Committees for participation with interesting solutions, events or other contributions related with resilience of grid in your electric power system.
At the end of program, we suggest to open discussions and contribution to all other experts from the any country but respecting limited 10 minutes per speaker.
Send your proposal for contribution to follow e-mail: kresimir.bakic@gmail.com and massimo.pompili@uniroma1.it
Participants and interested people have to register using Qr-code or this link: http://bit.ly/SEERC-SAPIENZA

Postponement of the 3rd SEERC Conference

In the beginning of 2020, COVID19 started to spread around the world and was officially declared a pandemic.
In March it was foreseeable, that many restriction concerning events will take place and so we decided to postpone the 3rd SEERC Conference to November 2020. As can be seen now, the pandemic is far from over, there are still many travel and health restrictions in place. At the moment it is not possible to hold an international Conference with over 300 people.

That’s why we, NC Austria, have to postpone the conference again.
We tried to find a date where other conferences are not affected and we think that we managed to do that.

The 3rd SEERC conference will be held from 29.11.2021 to 02.12.2021.

I am optimistic, that in November 2021, the spreading of the virus will be more or less under control and that the conference can be held with the high quality it deserves.

The submitted papers are still valid, but can be updated if the authors wish so.
Further information will be provided on the conference website and via mail in the following weeks.

Klemens Reich
Chairman of SEERC

Lightning Phenomena & Transmission Network Transients

A joint technical Webinar organised by the Cigre NGN Sections of the United Kingdom and Austria

Dr Lukas Schwalt, Post-Doc Researcher at the Graz University of Technology

Diptargha Chakravorty, vice-chair of CIGRE UK NGN and Senior Consultant with TNEI Services

shaerd their research outcomes on Lightning Phenomena and Power System Transients through an online webinar on 12th November 2020. Over 90 people were attending the event. The webinar is organised by CIGRE UK und Austria NGN.

Next Generation Network (NGN) seeks to facilitate a successful transition into the power systems industry for early-career professionals and students by providing technical resources and networking opportunities for personal and technical development.  Two subject matter experts will present current research activities in the fields of lightning research and voltage transients in transmission networks.

 

Topics:

Lightning Phenomena in the Alpine Region of Austria – Lukas Schwalt

In the first part of this presentation, an introduction about thunderstorm formation and lightning physics will be given and secondly the key findings of Dr. Schwalt’s PhD thesis “Lightning Phenomena in the Alpine Region of Austria” will be presented. The motivation for the PhD thesis was to gather lightning ground truth data for Austria out of on-site measurements, because this area shows high lightning activity. For this purpose, real processes of cloud-to-ground flashes were recorded with a high-speed video camera and an electric field measurement system. Analyses of this exclusive data set provide insights about lightning characteristics in general and for the alpine region in particular.

Effect of Network Parameters on the Transient Over-Voltage Phenomenon During System Restoration – Diptargha Chakravorty

System restoration is currently a transmission-led approach of starting large conventional generators with self-start capability and energising a skeleton network. Increasingly, transmission connected fossil-fuelled generators are decommissioned around the world to meet the emissions targets. This makes it imperative to explore the possibility of using distribution connected DERs to support the whole system restoration.  However, energisation of network elements such as circuits and transformers pose significant challenges such as switching transients, Temporary Over Voltage (TOV) etc which can reduce the available options to restore a network and lead to a higher number of circuit breaker switching to avoid damaging equipment. This presentation will discuss the impact of different network parameters such as the strength of the system, saturation characteristic of transformers etc on the TOV and ways to manage it during restoration.

International NGN Gettogether

On September 1st, 2020 the Austrian NGN organized its first online Gettogether. Numerous young and motivated NGNs worldwide presented their structure, activities and gained knowledges. This event was used to further establish and strengthen international contacts. The successful exchange motivated us to organize more events of this kind in the future, both on- and offline. These activities are intended to strengthen and promote worldwide cooperation and international exchange in the spirit of CIGRE.

Participating NGNs:

  • Austria
  • Canada
  • Croatia
  • Finland
  • Germany
  • Greece
  • Italy
  • Russia
  • Slovenia
  • South Africa
  • United Kingdom
  • USA

International NGN Gettogether

The Next Generation Network (NGN) seeks to facilitate a successful transition into the power systems industry for early-career professionals and students by providing technical resources and networking opportunities for personal and technical development.  Two subject matter experts will present current research activities in the fields of lightning research and voltage transients in transmission networks.

Topics:

Lightning Phenomena in the Alpine Region of Austria – Lukas Schwalt

In the first part of this presentation, an introduction about thunderstorm formation and lightning physics will be given and secondly the key findings of Dr. Schwalt’s PhD thesis “Lightning Phenomena in the Alpine Region of Austria” will be presented. The motivation for the PhD thesis was to gather lightning ground truth data for Austria out of on-site measurements, because this area shows high lightning activity. For this purpose, real processes of cloud-to-ground flashes were recorded with a high-speed video camera and an electric field measurement system. Analyses of this exclusive data set provide insights about lightning characteristics in general and for the alpine region in particular. 

Effect of Network Parameters on the Transient Over-Voltage Phenomenon During System Restoration – Diptargha Chakravorty

System restoration is currently a transmission-led approach of starting large conventional generators with self-start capability and energising a skeleton network. Increasingly, transmission connected fossil-fuelled generators are decommissioned around the world to meet the emissions targets. This makes it imperative to explore the possibility of using distribution connected DERs to support the whole system restoration.  However, energisation of network elements such as circuits and transformers pose significant challenges such as switching transients, Temporary Over Voltage (TOV) etc which can reduce the available options to restore a network and lead to a higher number of circuit breaker switching to avoid damaging equipment. This presentation will discuss the impact of different network parameters such as the strength of the system, saturation characteristic of transformers etc on the TOV and ways to manage it during restoration.