ארכיון - חשמל 2017 Archive - Electricity
מושב TAM 1
פתרונות למערכת חשמל - Power Grid Solutions
Thursday | 9.11.2017 | 9:00
Innovative Solutions for HV Substations
Currently in Israel considered 3 types of HV Substations:
Outdoor AIS Substations
Indoor GIS Substations
Outdoor Hybrid Substations
During last years new types of HV substations are developed worldwide.
The purpose of this lecture to present innovative solutions for HV Substations, along with cons and pros for each solution.
Outdoor AIS Substations with Disconnecting Circuit Breakers.
Indoor AIS Substations with Disconnecting Circuit Breakers.
Indoor Hybrid Substations.
Indoor and outdoor pre-assembled Hybrid H substations.
Indoor and outdoor pre-assembled GIS substations.
Complete skid-mounted substations including Power Transformers, HV and MV Switchgears.
Advantages and disadvantages of each solution analyzed based on below major parameters:
Qualification of assembly and operational personnel
Total ownership cost
David Zonis holds B.Sc Electrical Engineering degree (with Excellence) of Polytechnic Institute, Donetsk, Ukraine. Since 1990 till 2012 worked for Von Roll Transformers in Engineering and Management positions. In 2013 joined ABB as Local BU Manager for HV Products & Systems. David Zonis has vast experience in HV solutions.
Phasors and Power Quality Monitoring in Czech and Slovakia Grid
The presentation covers delivered WAMS systems implementation (real-time phasors measurement) and distributed evaluation of power quality according to IEEE/EN standards. We deal with:
Selection of right algorithms for PMUs (phasor measurement unit)
Selection of proper measured locations for PMUs and their installation on substations
Integration of PMUs into WAMS, customers feedback, final turnkey solution
For PQ, full long-term development of large scale portfolio of power quality analyzers (class A)
Installation of PQ analyzers to each input/output point of transmission grid
Development and installation of the central system providing wide variety of functionality based on the real-time and historical data from PQ meters
Integration of mechanisms to interchange PMU data between different TSOs
Dr. Daniel Kaminsky
Dr. Daniel Kaminský started his academic education in 1984 at VŠB-Technical University of Ostrava, from which he has Electrical Power Engineering degree (1989) and Phd in Technical Cybernetics (1996).
Daniel started his business career at the same academic institute, where he reached a position of an Assosicate Professor. In parallel, he joined Elcom in 1997 and he is currently the division manager of Virtual Instrumentation.
He have published noumerous papers, lectures and tutorials around the world and is a member in many technical organiztions, where he contributes his vast knowledge in Power Quality.
The South Australia Power Grid Blackout - Analysis and Lessons Learned
The South Australia (SA) power grid suffered during last year from couple massive outages and blackout. On 28th of September 2016, 850,000 customers were disconnected from the electricity grid. The tornado hit South Australia, wind gusts up to 190-260 km/h appeared in some areas. During couple minutes SA were subjected to hundreds lightning strikes. The extreme weather conditions caused finally to the SA blackout for more than 10 hours in some areas.
The system, where close to the event up to 50% of energy was generated by wind power, is vulnerable to such extreme weather condition. Even two DC and AC interconnections to Victoria were not enough to cope with the event.
So … what actually happened on September 28th?
Does the country running mostly on renewables may manage the situation in case of low inertia?
Why a lot of wind turbines disconnected from the grid during the event?
The SA blackout brought a lot of discussion in media including politicians. Even Alon Musk suggested resolving the SA grid problem with Tesla energy storage solution…to build 100MW storage solution in 100 days or it free.
The main topics of the presentation are:
Australian grid in a nutshell
AEMO as system operator
Reasons caused the blackout on the 28.09.2016
Chain of events
Analysis and conclusions
Mr Igor Aronovich - owns M.Sc. degree in Electrical Engineering from Chernovtsy National University, Ukraine, with Cum Laude, 1993. He also owns M.E. degree in Business Administration from Technion, Israel Institute of Technology, Cum Laude, 2003. In 2008 he received an Excellence Award from SEEEI. He is working for more than 20 years for IEC in different key positions. Since 2014 Igor has been holding the position of the Head of IPP and Market Operations Unit and responsible for the overall integration of all IPPs ( CCGT, cogeneration, renewables - pv & wind, pump storage, GT technologies) into the Grid from the kick- off of new plants till their full operations. He is also in charge of the Electricity Market Operations in Israel.
Before his last position has performed different positions in IEC – Operations Manager at System operator, LNG project Manager, Smart Grid Initiative Operations Manager and others. He was responsible for IEC Gas & Electricity system operations, managed Initiations, Progress and Performance of Power System projects, EMS, SCADA, DMS Project implementation, Power System Project Risk Management and etc.
Igor is a national representative in Study Committee C2 CIGRE and member of SEEEI. He is an active member of number CIGRE WGs.
From Fast Real-Time Phasors Monitoring to Long-Term Statistical PQ Evaluation over the Electricity Grid at Czech and Slovak Republic
The presentation introduces the key business issues of the Asset Management domain at Utilities, and describes how digitalization can dramatically improve the decision-making process to generate significant added value at Grid Utilities.
By creating a digital thread from field inspections and smart sensors up to decision support at Enterprise level, Utilities can:
consolidate their asset data,
capitalize their knowhow in digital models representing the asset behavior,
use advanced, predictive analytics to enhance their methodology for decisions.
Technology directions for Enterprise-wide digitalization will be presented, together with the barriers to change commonly faced at Utilities.
The presentation will describe the various data collection techniques, the analytics built from asset monitoring data and covering various time horizons for decisions, including Asset Health Index for long term asset replacement perspective and Maintenance Index for shorter term interventions, Criticality and Risk analysis, and so forth.
Finally, the presentation will use actual case studies to explain how Grid Utilities could generate significant Reliability improvements with excellent Return on Investment.
Key words: Digital, Service, Asset, Performance, Management, Maintenance, Replacement, Condition, Monitoring, Analytic, Risk, Reliability, Value
Jean-Louis Coullon is part of Grid Solutions in the Energy Connections business of General Electric.
He started his career as an R&D engineer in the aeronautic industry, then in automation and robotics in the car manufacturing industry. He joined CEGELEC in 1990 to work on Transmission and Distribution Management solutions. Continuing in ALSTOM T&D, AREVA T&D, ALSTOM Grid, and now Grid Solutions at General Electric, he held various management positions for designing and delivering Network Management systems, including the creation of the first generation of Distribution Management Systems. With a worldwide role in the Network Management Solutions product line, he was in charge of projects engineering and delivery, and then of the Energy Management Systems Activity.
Since 2013, he has the responsibility of managing and developing the Asset Performance Management Activity globally in Grid Solutions.
Jean-Louis Coullon holds an Engineer degree from SUPELEC, France obtained in 1979.
The Fire of Autotransformer as Result of 400 kV Bushing Explosion
The transformer bushing is one of the important elements ensuring connection between transformer and electrical network and reliable isolation between winding’s lead and tank. The share of transformer’s damageability of bushings is very high. The explosion of bushing, as a rule, leads to a fire on transformer. In addition, during the explosion of bushing with ceramic isolator, formed ceramic pieces are scattered in different directions for tens of meters. These pieces can cause personal injury and damage to equipment in the explosion zone. The flame from the fire leads to damage of protective walls, breakage of bushings on the transformer and isolators of neighboring equipment, cables and metal constructions, burning of oil. The fire is formed as a result of ignition by breakdown electric arc of oil-impregnated paper of bushing and leakage oil from tank. This article describes the reason of bushing’s explosion, which based on the post mortem analysis of the damaged bushing, and considers of possible influence of electrical transient over-voltages as a result of switching in electrical network. In the article damage of bushing is presentedvoltages as a result of switching in electrical network. In the article damage of bushing is presented.
Dr. Anatoly Shkolnik
Engineering Consulting & Supervision
Anatoly Shkolnik was born in Ukraine on 1950. He received M. Sc. Degree (1973) in electronic engineering (physic of dielectrics and semiconductors) at the Kiev Polytechnic University and Ph.D. (1990) in electrical engineering (electrical stations, electrical machines) at Electric Power Research Institute (Moscow, Russia). He has experience in production, repair, testing and diagnosis of the power and instrument transformers. Last 25 years he was senior specialist of the Central Electrical Laboratory in the Israel Electric. He is member of CIGRE SC A2 (TRANSFORMERS) and different WGs. He is author of scientific articles and inventions. Now he is self employed of “Dr.Anatoly Shkolnik. Engineering Consulting & Supervision”