DOCSLIB.ORG

ENERGY January 2013, No

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
ENERGY January 2013, No ENERGY January 2013, No. 1 (13) UPDATE PUBLISHED BY THE LITHUANIAN ELECTRICITY TRANSMISSION SYSTEM OPERATOR TODAY AND TOMORROW IN THIS issue: Standards prepared by a Wind-power Lithuanian engineer will be generation forecasts applied throughout entire published daily Europe’s energy system page 3 In territorial terms, the world’s smoothly (which is by no means electrical energy system that an easy task). One of these weaves a web across our con- specialists is Ramūnas Ponelis, tinents was by far humankind’s Head of the Technical Division largest engineering feat by the at Litgrid. He has contributed end of the 20th century. Only to a number of technical solu- at the turn of this century could tions for integrating electricity another system, the data-trans- generators into the transmission mission network, run it close and grid. Although such behind-the- now one is unimaginable with- scenes work remains invisible to out the other. A team of specia- electricity consumers, the fact lists at Litgrid, Lithuania‘s only that not a single bulb has ever Litgrid electricity transmission system gone off for reasons other than Ramūnas Ponelis, Head of the operator, is responsible for en- completes the Technical Division at Litgrid suring that power grid functions see page 2 reconstruction STRATEGIC PROJECTS of Viršuliškės Strategic project with Poland transformer will ensure Lithuania’s energy substation page 4 independence The LitPol Link power inter- double-circuit transmission line system will be connected to the connection currently being con- will connect transformer substa- Western European power grid structed between Poland and tions in Alytus (Lithuania) and when the project is completed, Lithuania is one of our coun- Elk (Poland). This project is a joint laying the groundwork for inte- grating electricity markets of the Everything is going according to plan, Baltic States into Western Euro- pean electricity markets. This will Energy sector so the project should be successfully bring added benefits to Lithua- completed by the end of 2015. nia’s economy. We asked Karolis news Sankovski, Litgrid Project Mana- try’s key strategic projects in initiative by Litgrid and PSE, which ger responsible for succes sful the energy sector. The project is are respective national transmis- implementation of the LitPol Link page 8 due for completion by the end sion system operators in Lithua nia of 2015. The 400 kV overhead and Poland. Lithuania’s electricity see page 5 1 ENERGY UPDATE TODAY AND TOMORROW Completed tasks continued from page 1 and projects and natural calamities shows that participation in studies: this painstaking task is adeptly Working group member of the handled. feasibility study for a full syn- chronous interconnection of The energy expert’s road UCTE-IPS/UPS. Working group member of the Ponelis’ biography is made dis- feasibility study for construc- tinctive by his ability to combine tion of a new nuclear reactor in scientific research with practical Lithuania. work. Ponelis has been inter- ested in engineering since his Mr. Ponelis was entrusted to prepare solutions to integrate electricity Calculation of the electrical sys- youth and went to study electri- generators into the country’s electricity transmission grid tem regime after the closure of cal power systems engineering Ignalina NPP. at Kaunas University of Techno- Lithuania’s electricity transmis- years ago) was not an easy task in Preparation of the plan for re- logy. Towards the end of his stu- sion system operator. 2004 without being highly quali- storing the electrical energy dies, the capable young man However, getting into Lietuvos fied. In his fourth year at the uni- system after a blackout and realised that he sees his future in Energija (which transferred its versity, the bright undergraduate calculation of the system’s dy- the electricity sector and that he electricity transmission system student was recommended to namic regimes. is interested in the activities of operator functions to Litgrid two Lietuvos Energija by his scientific Preparation of technical require- supervisor Dr. Vaclovas Ažubalis ments for integrating wind and carried out his first scien- Ramūnas Ponelis’ doctoral dissertation: farms for power generation and tific research for the company. other types of electri city gen- Supervisor: Docent and Doctor of Technical Sciences Vaclovas Ažubalis. As only a student, the first task erators into the country’s elec- Topic: Dynamic Process Modelling of Thermal Power Plant Generation Ponelis was given was to restore tricity transmission system and Units. the electrical energy system af- for the NordBalt and LitPol Link Aim: To create a dynamic model of a thermal power plant generation ter a blackout. After succes sfully interconnection projects. unit, allowing an assessment of multiple steam extraction in the tur- completing the work, the young Testing generators to be con- bine and modelling its operation specifics on the analysis of electro- man was noticed by senior nected to the energy transmis- mechanical transient processes in power systems. A dynamic model mana gers of the National Dis- for a thermal power plant steam turbine with multiple steam extrac- sion grid, determining their patch Centre and System Relia- tion is created, allowing the use of permanent power proportion coef- characteristics and assessing bility Division and presented to ficients to investigate different operational regimes of a power genera- the quality of their operations tion unit. The research was conducted in Mažeikiai Power Plant. the company’s executive board. in view of relevant technical Practical value of the work: The proposed dynamic model of the But even after this challenge he requirements. steam turbine with multiple steam extraction enables a more precise had to hang tough to secure a determination of stability limits and transmission grid bottlenecks, per- missible electricity market regimes and Ponelis now has a remarkable the potential for development of re- career and substantial experi- newable energy sources, as well as the integration capabilities of large power ence of international project generating units in small power sys- tems and participation in the frequency work on his CV. His history as control of thermal power plants. The an expert in the energy field EU encourages the construction and development of cogeneration power has recently been supplemented by a doc- plants that supply both electri city and heating, switching from condensation power plants that can only pro- toral degree in technical sciences. duce electricity. The number of such power plants is rising across all job and do a scientific research in the System Reliability Division electrical energy systems and a more accurate and convenient model project called Estimation of Sys- for assessing their operational regimes is definitely useful for any fu- and there met Rimvydas Dičius, ture investigations of electromechanical transient processes in electric tem Transition Processes Follo- who was to become his teacher power systems. wing Closure of the Ignalina Nu- in practical matters. clear Power Plant. He carried out Having started as a simple en- Ramūnas Ponelis’ career: the research before the Ignalina gineer, Ponelis now has a remark- NPP’s closure, which therefore able career and substantial experi- 2004: System Reliability Division Engineer at Lietuvos Energija. had tremendous practical value ence of international project work 2005: System Reliability Division Senior Engineer. later on. After completing this on his CV. His history as an expert 2006: System Reliability Division Managing Engineer. task fairly successfully and gai- in the energy field has recently 2008: Leader of the group devising technical standards for system de- ning a Master’s degree, Ponelis been supplemented by a doctoral velopment. was offered a job in Lietuvos degree in technical sciences. 2010: System Development Managing Engineer at Litgrid. Ener gija’s National Dispatch Cen- 2012: Head of Technical Division at Litgrid. tre. He thus became an engineer see page 3 2 January 2013, No. 1 (13) Training the younger mendations from scientists who This complicated field was en- transmission system was shut generation teach them. trusted to Ponelis. off from poor or second-hand During the 2012 internship Ponelis studied the examples and outdated technologies, al- These days it is much easier programme, Litgrid chose 3 of Denmark, Germany, Spain and lowing in only high-quality and to become a part of the team young specialists who are suc- the U.S., where renewable energy trustworthy options. For exam- at Litgrid, Lithuania’s electricity cessfully working for the compa- development started much ear- ple, all wind farms connected to transmission system operator. ny today by applying the know- lier, and in this way devised tech- Lithuania’s energy transmission This is because of the intern- ledge they acquired in their nical requirements for renew- grid must have remote control ship programme initiated by universities and learning from able energy producers wishing to systems to adjust the power and the company itself. Litgrid’s the company’s highly-experi- connect to the country’s electri- voltage generated or shut down personnel should undoubtedly enced professionals. This year, city transmission grid. An entirely the whole farm. The absence of comprise experts in the field, Litgrid plans to select 5 young professional theorists who con- specialists from the programme. Lithuania’s electricity transmis- tinuously review and analyse proposed and applied technolo- Tasks have been dictated sion grid is currently equipped gies, assess their pros and cons by the country’s key energy with devices that comply with and later offer convincing argu- projects ments for adopting solutions the latest EU standards. that entrust Lithuania’s electricity Lithuanian businesses be- transmission, as far as possible, came seriously interested in gen- new concept was born based such systems among Germany’s to methods that are most effec- erating electricity from renewa- on glo bal best practices. The electricity transmission system tive from the consumer’s point ble sources nearly a decade ago.
Load more

Recommended publications
  • ENERGY March 2013, No
    ENERGY March 2013, No. 3 (15) UPDATE PUBLISHED BY THE LITHUANIAN ELECTRICITY TRANSMISSION SYSTEM OPERATOR STRATEGIC PROJECTS IN THIS ISSUE: Litgrid and ABB signed a Litgrid Junior Professionals historical agreement on the Programme – construction of the LitPol Link perfect start for a career in power power interconnection facility engineering On 15 February 2013, the strategic LitPol Link power in- page 3 terconnection project between Lithuania and Poland reached a particularly important stage with the signing of an agreement on the design and construction of a direct current insert with a 400 kilovolts (kV) back-to-back converter station in Alytus. The agreement was signed between Litgrid, the Lithuanian electricity transmission system operator, and ABB, the global technology Litgrid and ABB have signed an agreement on outsourcing the direct company. Students prepare current insert with a 400 kV converter station in Alytus see page 2 electric energy TODAY AND TOMORROW plans for the next The plans of electricity network three decades development lie in the hands of page 7 competent specialists Antanas Jankauskas, leading network development plans; he engineer of the Litgrid System has been working in the system Planning and Research Division development division of the then has been working in the energy Lietuvos Energija since 1994. sector for more than 40 years. Over the course of his career, The engineer, who specialises in Mr Jankauskas has witnessed Sector news electricity systems and networks, the creation of the electri- has spent more than half of city transmission network as well his working life, 24 years, in the as himself contributing to the page 8 Leading engineer of the Litgrid Energy Planning Institute where expansion of the network.
    [Show full text]
  • System Operation Stakeholders Committee
    System Operation Stakeholders Committee Materials for meeting 16th September 2020 1.1 Review of the Agenda Time Agenda Topics Documents Lead 1. Opening Uros Gabrijel 13:30-13:35 1.1 Review of the agenda Agenda 13:35-13:45 1.2 Review and approval of minutes from previous meeting Minutes 13:45-13:55 1.3 Review of actions Slides Ana Cigaran 13:55-14:15 2. Update on the implementation actions at pan-EU level Slides Ana Cigaran 3. System Operation Guideline Slides 14:15-14:30 3.1 Cost Benefit Analysis for FCR providers by Limited Energy Reservoirs: Luca Ortolano Status update 3.2 Information on Exchange\Sharing of reserves 14:30-15:00 Mohamed El Jafoufi 15:00-15:15 4. CGM Program Implementation Update Derek Lawler 15:15-15:45 5. NC ER Implementation update Slides Rafal Kuczynski 5.1 Update on TCM Status according to Art. 4. 6. Information on Low frequency Pump disconnection & energy storage units Rafal Kuczynski\Walter Sattinger 15:45-16:00 6.1 Why low frequency pump disconnection is triggered at different frequencies across Europe? 6.2 Outlook on the plans for the energy storage units 16:00-16:15 16:15-16:30 7. AOB – Next meeting 9th December Uros Gabrijel 2 1.3 Review of actions Ana Cigaran 3 1.3 Review of actions (I) ACTION ANSWER STATUS 1. Note for future SO GL active library to include pre- Preparation for SO GL Active Library Open qualification process aFRR, mFRR, RR. is in good progress both for the Digital and content part.
    [Show full text]
  • Progress of Baltic Synchronisation with Continental Europe
    Progress of Baltic synchronisation with continental Europe Hannes Kont Director of the synchronisation program Why? Facilities for the control of transmission of electricity in the Baltic States are located in Russia. Environmental impact of Capacities: 337 GW Russian electricity is unknown. Peak load: 215 GW Possibilities for electricity production and trade are limited. Synchronisation targets • By the end of 2025, we will disconnect the power systems of the Baltic States from Russia and join the Continental Europe power network and the respective frequency area. • We will mitigate the political, social and economic risks associated with the eastern neighbour. • New markets will be opened in order to improve competitiveness of business. • We will ensure energy security. Agreement on the conditions for interconnection • Signed by Elering (EE), Litgrid (LT), AST (LV), PSE (PL), select Regional Groups of Continental Europe, and main network operators on 20 May 2019 • Establishes rights and obligations regarding the synchronized connection of the Baltic power network to the Continental Europe Synchronous Area (CESA) • Main requirements: • Additional studies on dynamic stability • Transmission capacity tests • Island operation tests • Compliance with the terms and conditions, RGCE MLA Operating Handbook and SAFA What are we doing? • Existing networks are being reinforced and reconstructed, interconnection capacities increased. • To ensure frequency stability, system inertia in the Baltic power system should be provided 24/7; therefore, synchronous condensers will be constructed and the protection and control systems of the grid as well as direct current links will be upgraded. • The present direct current interconnection between Lithuania and Poland is being reconstructed into an alternating current interconnection (LitPol Link).
    [Show full text]
  • The Benefits of Investing in Electricity Transmission a Case Study of Northern Europe
    The Benefits of Investing in Electricity Transmission A Case Study of Northern Europe Jonas Teusch Arno Behrens Christian Egenhofer January 2012 Abstract Electricity trading can bring down the costs of the EU’s transition to a competitive low-carbon economy, in particular by facilitating the integration of renewable energy from variable sources. Yet insufficient grid infrastructure and regulatory obstacles prevent the trading potential from being fully realised in northern Europe. While many interconnector projects are under development, various barriers are precluding the grid rollout from taking place on time. The European Commission’s energy infrastructure package is an important step forward to overcome these barriers. But the scale and urgency of the infrastructure challenge call for significant further progress. This study was funded by Dong Energy, Fortum, Statkraft and Vattenfall. The authors would like to extend special thanks to officials and representatives from the European Commission, ENTSO-E, ACER, BNetzA, the Swedish Markets Inspectorate and EWEA for their valuable assistance and support. The preliminary results of this study were discussed at a stakeholder workshop held at CEPS on 28 September 2011; the main results were debated by a high-level panel on 28 November 2011. Unless otherwise indicated, the views expressed are attributable only to the authors in a personal capacity and not to any institution with which they are associated. ISBN 978-94-6138-161-3 Available for free downloading from the CEPS website (http://www.ceps.eu)
    [Show full text]
  • Minutes SDAC Joint Steering Committee Meeting 04/06/2020,13:30 – 17:00 CET, Conference Call
    Minutes SDAC Joint Steering Committee Meeting 04/06/2020,13:30 – 17:00 CET, conference call Present parties 50Hertz Cropex EPEX Spot Litgrid PSE Terna Admie EirGrid (TSO) ESO MAVIR REE TGE Amprion Eirgrid (SEMO PX) EXAA Nasdaq REN Transelectrica APG ElecLink Fingrid Nemo Link RTE Transnet BW AST Elering GME NGIC SEPS TTG BritNed ELES HEnEx OKTE SONI (SEMO PX) TTN BSP Elia HOPS OMIE SONI (TSO) ČEPS EMCO Nord Pool HUPX OPCOM Statnett Creos Energinet IBEX OTE Svk Attending by phone Not present Present chairs, TF leaders, PMOs, observers BMTF leader/PMO Entso-e MRC OPSCOM leader MSD TSO co-leader OST Swissgrid EC JSC Secretary MRC OPSCOM PMO MSD PMO PCR chair & PMO TSO co-chair EMS MEPSO MSD NEMO co-leader NEMO co-chair Procedures TF leader Attending by phone Not present Meeting agenda # Topic For 1 Welcome, practicalities 1.1 Confirm quorum Inf 1.2 Adoption of the agenda Dec 1.3 Approval of minutes of past meetings/calls (incl. part for publication) Dec 1.4 Review open action points Inf 2 Strategy/governance – decisions required 2.1 Way forward Central Settlement Entity Inf 3 Important points to highlight and decisions requested by TFs 3.1 Status extension projects and communication towards EC Dec 3.2 MRC OPSCOM Dec 3.3 MSD Dec 3.4 Procedures TF Inf 3.5 BMTF Dec 3.6 JSC members questions to reports in back-up section Dis 4 Important points for SDAC from ENTSO-E/ NC/ NRAs/ ACER/ EC 4.1 Preparations for next TCG and MESC Inf 4.2 EC consultation on first light amendment of some relevant regulations incl.
    [Show full text]
  • Minutes SDAC Joint Steering Committee Meeting 28/10/2020,11:00 – 17:00 CET, Conference Call
    Minutes SDAC Joint Steering Committee Meeting 28/10/2020,11:00 – 17:00 CET, conference call Present parties 50Hertz Cropex EPEX Spot Litgrid PSE Terna Admie EirGrid (TSO) ESO MAVIR REE TGE Amprion Eirgrid (SEMO PX) EXAA Nasdaq REN Transelectrica APG ElecLink Fingrid Nemo Link RTE Transnet BW AST Elering GME NGIC/NGIFA2 SEPS TTG BritNed ELES HEnEx OKTE SONI (SEMO PX) TTN BSP Elia HOPS OMIE SONI (TSO) ČEPS EMCO Nord Pool HUPX OPCOM Statnett Creos Energinet IBEX OTE Svk Attending by phone Not present Present chairs, TF leaders, PMOs, observers BMTF leader/PMO Entso-e MRC OPSCOM leader MSD TSO co-leader OST Swissgrid EC JSC Secretary MRC OPSCOM PMO MSD PMO PCR chair & PMO TSO co-chair EMS MEPSO MSD NEMO co-leader NEMO co-chair Procedures TF leader Attending by phone Not present Meeting agenda # Topic For 1 Welcome, practicalities 1.1 Confirm quorum Inf 1.2 Adoption of the agenda Dec 1.3 Approval of minutes of past meetings/calls (incl. part for publication) Dec 1.4 Review open action points Inf 2 Strategy/governance 2.1 Exit plan for GB parties Dec 2.2 DAOA: clarification re. approval of updated operational procedures Dec 2.3 15 min MTU implementation project Dec 2.4 Assessment on synergies between regions and SDAC Inf 3 Important points to highlight and decisions requested by TFs 3.1 BMTF Dec 3.2 MRC OPSCOM – PART 1 Dec Lunch break 3.3 Confirm quorum Inf 3.4 MRC OPSCOM – PART 2 Inf 3.5 Interim Coupling Project Inf 3.6 MSD (20 min) Inf 3.7 Intraday auctions (IDA) Inf 3.8 CCP default – status reporting Inf 3.9 JSC members questions to reports in back-up section Dis 4 Important points for SDAC from ENTSO-E/ NC/ NRAs/ ACER/ EC 4.1 Joint SDAC & SIDC governance: “lean” implementation proposal Dis 4.2 Feedback from 22/09 TCG and 23/09 MESC Inf 5 Any other business 5.1 SDAC communication plan Inf 5.2 Qualified electronic signature – status investigation outcome Inf 5.3 Next meetings Inf 1 List of decisions # Topic Decision 1.2 Adoption of the The meeting agenda is approved.
    [Show full text]
  • LITGRID AB the Company's Financial Statements, Annual Report and Independent Auditor's Report for the Year Ended 31 Decembe
    LITGRID AB The Company’s financial statements, annual report and independent auditor’s report for the year ended 31 December 2020 CONFIRMATION OF RESPONSIBLE PERSONS 15 March 2021, Vilnius Following the Law on Securities of the Republic of Lithuania and the Rules on Information Disclosure approved by the Bank of Lithuania, we, Rokas Masiulis, Chief Executive Officer of LITGRID AB, Vytautas Tauras, Director of the Finance Department of LITGRID AB and Jurgita Kerpė, Head of the Accounting Division of LITGRID AB, hereby confirm that, to the best of our knowledge, the attached financial statements of LITGRID AB for the year 2020 prepared in accordance with the International Financial Reporting Standards adopted by the European Union give a true and fair view of the Company’s assets, liabilities, financial position, profit and cash flows; the annual report for the year 2020 presents a fair overview of the business development and performance, the Company’s financial position together with the description of its exposure to key risks and contingencies. Rokas Masiulis Chief Executive Officer Vytautas Tauras Director of the Finance Department Jurgita Kerpė Head of the Accounting Division CONTENTS Translation note: This version of the accompanying documents is a translation from the original, which was prepared in Lithuanian. All possible care has been taken to ensure that the translation is an accurate representation of the original. However, in all matters of interpretation of information, views or opinions, the original language version of the accompanying documents takes precedence over this translation. Independent auditor’s report 4 Annual report 10 The Company’s statement of financial position 101 The Company’s statement of comprehensive income 102 The Company’s statement of changes in equity 103 The Company’s statement of cash flows 104 Notes to the Company’s financial statements 105 The financial statements were approved on 15 March 2021.
    [Show full text]
  • East-West Interconnector Connecting Ireland and Britain
    East-West Interconnector Connecting Ireland and Britain United Kindom Woodland Liverpool Dublin Deeside Ireland The 500 MW East-West Interconnector HVDC Light® trans- Data mission system will connect the grids of Ireland and Wales. Connection point Irish grid: Woodland This is the first HVDC Light project to use ±200 kV cables sea cable landing: Rush North Beach, Co. Dublin and the link is about 260 km long. Connection point British grid: Deeside sea cable landing: Barkby Beach, North Wales Ireland has plans to expand the wind power generation and the Operator: Eirgrid, Ireland link will facilitate addition of renewables and give the possibility Commercial operation: 2012 to export excess energy to the UK market and vice versa. The Transmission technology: HVDC Light® by ABB new link will also enchance security of supply in the Irish grid Transmission capacity: 500 MW and allow Ireland and Britain access to more competition. DC voltage: ± 200 kV AC voltage: 400 kV Additional customer benefits, due to the choice of the HVDC Cable route length: 261 km Light technology, are “black start”, a way of restoring power - 186 km with parallel submarine cables after a blackout without the aid of external energy sources, and - 75 km with parallel land cables active AC voltage support. Featured submarine cable - Extruded polymer insulated cable - Conductor 1650 mm2 copper - Steel armoring - Diameter 117 mm - Weight 39 kg/m Featured land cable - Extruded polymer insulated cable - Conductor 2210 mm2 aluminum - Diameter 107 mm - Weight 12 kg/m HVDC Light® converter stations: Convert alternate current (AC) to direct current (DC) and on the other side DC to AC.
    [Show full text]
  • Establishing the Institutional Set- up for Organized Day-Ahead Market in Bosnia and Herzegovina
    Finland Energy Community Norway Members Sweden European Union Estonia Observers Contracting parties Latvia Denmark Candidate Lithuania Ireland Great Britain Netherlands Poland Germany Belgium Luxembourg Czech Republic Slovakia Ukraine Austria Moldova Hungary France Slovenia Romania Croatia Bosnia & Herzegovina Serbia Italy Montenegro Kosovo* Bulgaria Georgia FYR of Portugal Macedonia Albania Spain Armenia Greece Turkey Malta Cyprus Establishing the institutional set- up for organized day-ahead market in Bosnia and Herzegovina SEEC Ltd. and MRC Consultants and Transaction Advisers March 2018 This report is a deliverable under the Technical Assistance to Connectivity in the Western Balkans, Component 2: Regional Energy Market. www.energy-community.com Establishing the Institutional Set-up for Organized Day-ahead market in Bosnia and Herzegovina TECHNICAL REPORT Prepared for March 2018 MRC Consultants and Transaction Advisers General Moscardo 32, 1-A, 28020 Madrid (Spain) www.mrc-consultants.com SEEC Ltd. and MRC Consultants and Transaction Advisers and their directors and staff neither owe nor accept any duty of care to any third party whether in contract or in tort (including without limitation negligence or statutory duty or howsoever otherwise arising) and shall not be liable in respect of any loss, damage or expense of whatsoever nature which is caused by any third party’s reliance upon information derived from the report. If any third party wishes to rely upon the report or information derived there from, they do so entirely at their own risk. The information used in preparing this Report has been obtained from a variety of sources as indicated within the Report. Our work has not included an audit in accordance with generally accepted auditing standards.
    [Show full text]
  • Nordic and Baltic Grid Disturbance Statistics 2019
    Nordic and Baltic Grid Disturbance Statistics 2019 Regional Group Nordic European Network of Transmission System Operators for Electricity Nordic and Baltic Grid Disturbance Statistics 2019 Copyright © 2020 ENTSO-E AISBL Report rendered 22 September 2020. European Network of Transmission System Operators for Electricity Executive Summary The Nordic and Baltic Grid Disturbance Statistics 2019 gives of the secondary faults were caused by technical equipment, both an overview of the disturbances, faults, and energy not operation and maintenance, and other causes in 2019. How- supplied (ENS) in the Nordic and Baltic transmission sys- ever, other causes were the reason for 71 % of all secondary tems, as well as a deeper dive into the statistics of individual faults ENS. Other causes were also the dominating cause of HVAC components used in the power system. To interpret secondary faults ENS in 2018. the results of the statistics correctly, one must understand the definition of a disturbance and the scope of a fault within 100 it. 80 A fault is defined as the inability of a component to perform Country ) Denmark m its required function, with the addition that faults only are re- p p ( 60 Estonia n o i ported when they result in a trip of one or several breakers. A t Finland p m u Iceland s disturbance is an event including one or more faults. In short, n o Latvia C 40 / a disturbance is a combination of one or several faults as long S Lithuania N as they occur in the same area and time. Disturbances al- E Norway Sweden 20 ways focus on the fault initiating the disturbance.
    [Show full text]
  • Download This Article in PDF Format
    MATEC Web of Conferences 336, 05020 (2021) https://doi.org/10.1051/matecconf/202133605020 CSCNS2020 The interconnection exchange and complex systems properties in power grid network Piotr Hadaj*, Marek Nowak1, and Dominik Strzałka1 1Faculty of Electrical and Computer Engineering, Rzeszów University of Technology, Al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland Abstract. A case study based on the real data obtained from the Polish PSE System Operator of the highest voltages electrical energy network is shown. The data about the interconnection exchange and some complex networks (graphs) parameters were examined, after the removal of selected nodes. This allowed to test selected network parameters and to show that the breakdown of only three nodes in this network can cause significant drop of its average efficiency. 1 Introduction The concept of complex systems and related theory give many interesting applications in modelling different real systems [1]. One of examples are power systems which can be exposed on different threats even leading to the risk of potential blackouts [2]. In this short paper, the real electrical network as a graph of nodes and edges is shown. Some of this network topological parameters are given and the interconnection exchange as an example of the power system security is shown. Selected parameters of complex networks are calculated and the removal of some network nodes caused by failure was done. This leads to the changes in the whole network topology shown in tables. The most important is the drop of network efficiency and in turn, the increase of transmission costs. The paper is organized as follows: after the short Introduction in Section 2 we show the complex systems and networks theory.
    [Show full text]
  • 2018 International High Voltage Direct Current Conference in Korea October 30(Tue) - November 2(Fri) 2018, Gwangju, Korea
    http://hvdc2018.org 2018 International High Voltage Direct Current Conference in Korea October 30(Tue) - November 2(Fri) 2018, Gwangju, Korea Supported by Sponsored by 2018 International High Voltage Direct Current Conference in Korea Time table Date Plan Time Topic Speaker Co-chair/Moderator Oct.30 Welcome Party 18:00 - 20:00 Event with BIXPO 2018 Opening Ceremony 13:30 - 13:40 Chairman KOO, Ja-Yoon Opening Welcome Address Chair: Ceremony 13:40 - 13:50 Congratulation Address CESS President Dr. KIM, Byung-Geol 13:50 - 14:00 Congratulation Address KEPCO President Plenary session 1: Arman Hassanpoor 14:00 - 14:40 On Development of VSCs for HVDC Applications (ABB) Plenary session 2: Oct.31 14:40 - 15:20 Shawn SJ.Chen Introductionof China HVDC Development (NR Electric Co., Ltd) Co-chair: Plenary 15:20 - 15:30 Coffee Break Arman Hassanpoor Session Plenary session 3: Prof. KIM, Seong-Min 15:30 - 16:10 Introduction of KEPCO’s HVDC East-West Power KIM, Jong-Hwa Grid Project (KEPCO) Plenary session 4: Prof. Jose ANTONIO JARDINI 16:10-16:50 The Brazilian Interconnected Transmission System (ERUSP University) Oral Session 1: Testing experiences on extruded cable systems Giacomo Tronconi 09:10-09:40 up to 525kVdc in the first third party worldwide (CESI) laboratory Oral Session 2: An optimal Converter Transformer and Valves Yogesh Gupta (GE T&D INDIA Ltd) 09:40 - 10:10 arrangement & Challenges in Open Circuit Test for B Srikanta Achary (GE T&D INDIA Ltd) Parallel Bipole LCC HVDC System with its Mitigation 10:10 - 10:20 Coffee Break Co-chair: Conference Oral Session 3: Mats Andersson 10:20 - 10:50 Overvoltages experienced by extruded cables in Mansoor Asif Prof.
    [Show full text]