welcome! eh2741 communications & control in power systems · pdf filescada & ems ip...
TRANSCRIPT
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Outline • Administration
– Few words about the department – Walk through of course syllabus
• Demonstration of KTH-social course platform
• CAPS course introduction – Power system control & operation
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General Information • Teachers
– Examiner & Lecturer • Prof.Lars Nordström
– Course Assistants • Yiming Wu [email protected] • Davood Babazadeh, [email protected]
• Industrial Information and Control System – Architectural analysis for ICT system in general – Particular focus with power industry
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PSMIX group
Research Areas: • Reliable and High-performing
ICT infrastructures • Distributed Control of Power
Systems • Novel Market Models for
Active Power Systems
Educational Activities: • Communication & Control for
Power Systems • Computer Applications in
Power Systems • Circa 20 Masters & Bachelor
projects annual
Group lead: Nordström APost-Doc: Saleem 7 PhD students + 2 IndPhD 8 MSc Students
Funding: 1,2 MEUR Annual 58% External Main sources: FP7, Swedish Energy Agency ABB, SvK.
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Education – Power Systems track
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Connecting things
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Control System Laboratory
SCADA & EMS
IP WAN Emulator (Opnet)
ABB Network Manager Fully redundant SCADA& EMS
State Estimator Multi-vendor IEDs ABB, Siemens, Areva
IEC 61850 SAS
Netcontrol RTUs IEC 60870-5-101 IEC 60870-5-104
KTH PowerIT OpenWAMS
ARISTO simulator Viking
City ViCiSi
SoftPMU
Opal-RT eMegasim Real-time simulator
4G LTE network
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Outline • Administration
– Few words about the department – Walk through of course syllabus
• Demonstration of KTH-social course platform
• CAPS course introduction – Power system control & operation
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Course content
Pow
er System
Protection
Pow
er System
Instrumentation
Pow
er System
Operation/C
ontrol
Pow
er Com
munication S
ystems
Information S
ystem A
rchitecture
Information M
odeling
Pow
er System
Analysis
EH 2741 Communications & Control in Power Systems
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Course map
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Course Map
1
2
3
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Course philosophy • Open the door to future study
– EH2745/EH2751 advanced & project courses – Degree projects
• Systems engineering approach • Applying theory and methods from several
fields to real-world problems • Engineering skills • State of the Art technologies • Industry involvement
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Course syllabus
• Course objectives • Prerequisites • Course administration • Course Schedule • Literature • Assessment & Grades • Course Staff
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Course Objectives • Describe the functions of the primary equipment in the power
system that is relevant for protection, automation and control • Analyze substations and simple power systems in terms of reliability
protection, automation and control needs. • Describe the function and architecture of information and control
systems used for protection, automation and control of power systems.
• Describe the function and architecture of communication systems used for information & control systems for power system control.
• Describe the importance of information & control systems for the ability to connect large amounts of renewable power sources.
• Analyze and develop basic systems for substation automation and protection.
• Analyze and develop basic information & control systems for system-wide control from control rooms, e.g. SCADA systems and EMS applications.
• Construct a state estimator for power systems. • Describe relevant interoperability standards in the field, such as IEC
61850 • Describe the threats and risks associated with the use of information
& control system for controlling the electric power system, known as Cyber Security.
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Course Components - I • 14 Lectures +5 Exercises • Project Assignment 1,2 and 3
– Project hours • Individual Tests 1,2 and 3 (voluntary) • Lab 1 and 2 • Study visit
• Guest Lectures
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Course Components - II
• Project Assignment 1 2 ECTS • Project Assignment 2 2 ECTS • Project Assignment 3 2 ECTS
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Literature
• Course Books Electrial Network Automation and Communication Systems, 2003 by Cobus Strauss
• Additional reading provided as hand-outs on lecture 2.
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Assessment and Grade
• No final exam • Test 1, 2 and 3: 0-10 course points • Project Assignment 1, 2 and 3: fail, pass
(6 course points) pass with bonus (7-10 course points)
• Lab 1 and 2 : fail, pass
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Grade
Grade Course Points
E 18-24
D 25-31
C 32-39
B 40-46
A 47-60
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Outline • Administration
– Few words about the department – Walk through of course syllabus
• Demonstration of KTH-social course platform
• CAPS course introduction – Power system control & operation
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KTH social
• All course related information is available on the KTH social platform
• You get access to the platform once you are registered to the course
https://www.kth.se/social/course/EH2741/
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Team up!!! Project Assignment Power System Control Lab SCADA & Wide Area Communications
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Outline • Administration
– Few words about the department – Walk through of course syllabus
• Demonstration of KTH-social course platform
• Course introduction – Communications & Control in Power Systems
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Lecture philosophy
• This lecture is intended to provide some insights into how Information & Communication Technologies enables control & operation of power systems.
• I have deliberately focused on the clear advantages of ICT, staying away from the ”visionary” aspects.
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Definitions of Smartgrids “Smart Grid is an electricity network that can cost efficiently integrate the behaviour and actions of all users connected to it – generators, consumers and those that do both – in order to ensure economically efficient, sustainable power system with low losses and high levels of quality and security of supply and safety.” ”The integration of kW and kBit”
M. Jimenez-Sanchez, DG ENERGY Wit n. intellect; reason; cleverness; sharpness; one who is sharp kWit
L. Nordström, KTH
“Smart Grid is an electricity network that can intelligently integrate the behaviour and actions of all users connected to it – generators, consumers and those that do both – in order to ensure economically efficient, sustainable power system with low losses and high levels of quality and security of supply and safety.”
European Technology Platform
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Communication & Control in Power Systems
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Power System Decisionmaking • Power system analysis,
control and operation is dependent on models
• Using the models, analytical and numerical analysis provides decision support for e.g. – Security – Stability – Optimal power flow – Contingency analysis – Expansion planning – Market clearing
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Smartgrids Decisionmaking • Smart grids are power
systems integrated with ICT systems
• Decisionmakers want to take informed decisions about: – Functionality – Security – Stability – Reliability – Performance – Interoperability – Usability
Models?
Analysis tools?
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Source: EU Commission Task Force for Smart Grid, Expert Group 1: Functionalities of smart grids and smart meters
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Smartgrids functionalities A. Enabling the network to integrate users with new
requirements B. Enhancing efficiency in day-to-day grid operation C. Ensuring network security, system control and
quality of supply D. Enabling better planning of future network
investment E. Improving market functioning and customer service F. Enabling and encouraging stronger and more direct
involvement of consumers in their energy usage and management
Source: EU Commission Task Force for Smart Grid, Expert Group 1: Functionalities of smart grids and smart meters
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Where can ICT help?
1. To develop new customer services –enabling the active consumer
2. Enable control of grids that are changing into active grids due to introduction of new generation
3. Make Grid Operators more efficient in their daily operation offering lower costs and improved customer quality
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Where can ICT help?
1. To develop new customer services – making the enabling the active consumer
2. Enable control of grids that are becoming into active grids due to introduction of new generation
3. Make Distribution companies more efficient in their daily operation offering lower costs and improved customer quality
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ICT – area #1 Consumer possibilities in Smartgrids
• Direct communication of price signals between consumer and producer
• Possibility to shift load over time
• Interconnection of intelligent appliances in the Smart Household
• Enable the producing consumer – the Prosumer with microgeneration
• Energy savings • Lower cost of electricity • Home Automation
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BEA Systems, Inc. (Nasdaq: BEAS), the E-Commerce Transactions Company(TM), announced that Vattenfall, one of the largest energy companies in Europe, is using BEA's WebLogic product family of industry --leading e-commerce transaction servers, along with BEA components, to build an integrated network A network that supports both data and voice and/or different networking protocols for providing 'smart building' subscription services throughout Sweden. The services let customers remotely monitor their refrigerators, ovens, electricity consumption and power mains status, and control their burglar alarms and heating and air conditioning air conditioning, mechanical process for controlling the humidity, temperature, cleanliness, and circulation of air in buildings and rooms.. Vattenfall estimates that, before the end of next year, 150,000 Swedish households will be using the new services, and hopes to add 200,000 new customers a year en route to a customer base of one million households within five years. ���
Possible is not Sufficient
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ICT Area #1 Important Lessons from history • Technology-wise, many of the smartgrids
concepts appear to have been invented and tested already
• It seems, that although something is possible from a technical perspective it is not realised at full scale because it is not needed.
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ICT Area #1 Going forward
• Several demonstration projects are rolling out all over Europe & the World testing technologies and business models.
• AMR metering is being rolled out across europe mandated by law (less focused on business cases) opens possibilities
• Integration with business models for consumer appliances critical for success
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ICT Areas #2 & #3
Power System Planning & Maintenance
Power System Operation
Power System Protection & Automation
• Meeting the challenges of the future power system requires integration of previously separated areas with ICT as the enabler
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Power System Protection & Automation • Protect Equipment • Protect People & Property • Separate faulty section
from power system • Restore normal operation • Local control
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Power System Operation
• System-wide monitoring, planning & optimisation for reliable and cost efficient operation of the power system
Normal
Alerted
Emergency
Restorative
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Power System Maintenance & Planning
• Cost efficient maintenance, replacement and commissioning of primary equipment in the power system to achieve required reliability
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Integrated systems for Smart grids
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Deregulation– in theory
Wholesale level - Transmission
GenCo GenCo GenCo GenCo
Retailer Retailer
Retail level - Distribution
Customer Customer Customer Customer
Customer
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Deregulation – in practice
Area 1
Area 2
Area 5
Area 3
Area 4
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Integration of Systems
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Information Exchange – a simple example
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Example – root event 1. Step-up
transformer insulation fault
2. Fault is detected by protection system
3. Trip signal sent to breaker to disconnect generator
1. 2. 3.
TSO – Frequency control
TSO – Maintenence
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TSO - Frequency Control 1. Frequency dip detected at
generators committed to Load Frequency Control
leads to automatic increase of output
2. Continuous under-frequency measured are sent to SCADA system using IEC 60870-5-101
3. Control room operator activates secondary
reserve by issuing order to GenCo via phone.
4. GenCo orders production increase in secondary
reserve. 5. Order for production
increase sent to plant from GenCo CC.
6. New measurements sent to neighbouring Grid
Utility using ICCP.
2.
3.
1.
1.
1.
4.
5
6.
TSO
GenCO
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TSO- Repair & Maintenance
1. 2.
3.
4.
1. Fault in transformer sent from SCADA system to work management system using
e.g. IEC 61968-4 2. Repair crew sent to site
from work dispatch 3. At site, work crew reports
to control centre to initiate safe switching sequences
4. Station set to manual control, fault repaired (!) or
report initiated for major overhaul.
5. After completed assignment, info on failure
stored in maintenance database.
5.
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Points for discussion
• What drives the development in – ICT area #1? – ”Consumer services” – ICT Area #2? – ”New production” – ICT Area #3? – ”Grid operation”
• Which parties are involved in information exchange required – For frequency control? – For voltage control in a distribution grid? – For optimal dispatch of production?
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Questions or comments?