RedActiva Project / Rafael Mínguez Matorras
RedActivaProject
ETIP SNETWestern RegionWorkshop
Automation Innovation of the isolated neutral distribution grid
OUTLINE
I. Viesgo and the energy transition
II. Executive Summary
III. Consortium
IV. Objectives
V. Islanding applications
VI. Ferro resonance
VII. Improved voltage and current sensors
VIII. Assets management
IX. Conclusions
• Renewable Development
Viesgo and the Energy TransitionViesgo is focused on infrastructures and efficient generation, aligned with the Energy Transition
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Smart Grids
Generation Infrastructures
Renewable Thermal
Viesgo ready to Energy Transition
• Network Dynamic Management
• Electrical Vehicle Development
• Customized Information to Consumer
• Growth of Distribution Network G • Storage and Distributed Generation
Growth Opportunities
Network Management
The importance of a responsible transition
Executive Summary
General Data
Project goals
Benefits and
achievements
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Project: Automation Innovation of the isolated neutral distribution grid (RTC-2015-4176-3) funded by Ministry of Economy and Competitiveness and co-funded by European UnionPromote technological development ,
innovation and quality research
Duration: Jun 2015 – Dec 2018Budget: € 3.5 mioPartners: UFD, Viesgo, Ormazabal, Ingeteam, CIRCE, Ikerlan and Univ. Cantabria
R&D project formed by distribution system operator, research center, universities andmanufacturer, whose goal is the development of technological solutions that permit tooptimize the automation of the BT /MT distribution network to improve the networkoperation by enhancing the effectivity and efficiency, providing solutions to solve identifiedoperation problems and adding new functionalities to deployed devices
Optimize automation tasks in the distribution network, in terms of cost-cutting and time ofinspectionImprovement of the quality of service being able to carry out more tasks of line inspection asa result of the reduction of operating costs.Increase of the security in the line inspection, as a result of avoid unintentional islandingoperation and the reliable information in real time about the state of the network provided bynew sensors.
RedActiva Project / Rafael Mínguez Matorras
Consortium
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Viesgo is a DSO that operates in the north of Spain, owns more than 31.300 km of Grid, 120 primary substations and more than 695.000 clients. Main contribution to ferro resonance, anti-islanding, as well as the elaboration of the requirements and specifications. Furthermore pilot solutions developed within the framework of the project.
UFD is the Naturgy electricity distributor, is the leader of project and the third DSO in Spain, owns more than 113.000 km of Grid, 400 primary substations and more than 3,7 million clients. Main contribution to sensors development, anti-islanding systems, predictive maintenance, furthermore the elaboration of the requirements and specifications. And to pilot solutions developed within the framework of the project.
One of the worldwide leading companies in the electrical network, providing high added value products and services. Focused on reliability and deep knowledge of the sector and the markets, contributing to its development with innovative solutions and in-house technology. Main Contribution in the project to new Voltage and Current Sensors, integrating in bushing from factory and increasing the accuracy.INGETEAM is a leading company specialized in the design of power electronics and control, electrical machines, electrical engineering and power generation plants. Its products are used mainly in four sectors: Energy, Industry, Naval and Railway Traction, seeking to optimize consumption, as well as to maximize the efficiency in the generation of energy.
The University of Cantabria (UC) is one of the three universities that has been in the Top 10 list of the main Spanish rankings both in education as well as in research quality.It is a modern public institution whose main purpose is to contribute to social progress through a firm commitment to teaching and scientific excellence. Main Contribution to Ferro resonance, Anti-Islanding and Sensors.
IKERLAN is a leading research center for innovation, dedicated to advanced technology transfer to industry and comprehensive product development (from concept to implementation) for a wide variety of domains. Main Contribution to Anti-Islanding, Connectivity and Automation
Independent Technology Centre, recognized since 2001 as National Centre of Innovation and Technology, seeking to provide innovative solutions for a sustainable development. The main contributions in Redactivaproject are aimed at anti-islanding detection techniques, ferrorresonance mitigation equipment, asset management in ungrounded systems and power electronics interface development.
RedActiva Project / Rafael Mínguez Matorras
Objectives
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AUTOMATION INNOVATION OF THE ISOLATED NEUTRAL DISTRIBUTION GRID development of knowledge, tools and equipment that to optimize the automation of the smart network improving the efficiency, providing solutions to identified problems and adding new functionalities to equipment already deployed.
Islanding Application
Solutions and tools for:Asset Management &
Predictive fault detection
Ferro resonance prevention and damping
Improved voltage and current sensors
Smart GridAutomation
(Isolated neutral grid)
RedActiva Project / Rafael Mínguez Matorras
Islanding applications
Analysis of regulations, solutions and scenarios Evaluation of AI Solutions
• Multi-inverter scenarios• Differente synchronization strategies
RedActiva Project / Rafael Mínguez Matorras
Islanding applications
Monitoring system PMU
GRID generator
y Active Load
emulator
Data logger
Scada RLC passive
load
Island start
Island detected
The detection techniques against electrical grid risks were evaluated and compared Three phase anti-islanding test according to the IEC 62116 standard were performed The SVS, Q-f y SMS active local method were evaluated experimentally, with a full compliance of
the standard results The PDC+PMUs remote passive method was developed and evaluated, with full compliance of the
standard results
RedActiva Project / Rafael Mínguez Matorras
Islanding applications
Monitoring system PMU
Development of improved algorithms for passive islanding detection
Development of algorithms based on synchro-phasorialmeasurement in the telephone communication networks- Point-to-point Solutions with local decision- Centralized Solutions with remote decision
• UNE 62116 compliantIsland detection time under 2 seconds
• Reliable communication system• Resilient against cyberattacks
Denial-of-Service attacksIntrusion and unauthorized access
• 4G/LTE network Low latency (<250ms message round trip time)High data rate (>1Mbps stable)Good coverage (better propagation/penetration in 800MHz band)
RedActiva Project / Rafael Mínguez Matorras
Islanding applications
RedActiva Project / Rafael Mínguez Matorras
Gateway Design
• C37.118 PMU compatible
• 4G/LTE cellular communications
Improved throughput/latency compared to 3G/2G
• DDS middleware
• Custom communications software
• Hardened security
Decentralized VPN
Data encryption
Access control
• Safety communication system
Black channel
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Muestras
Tens
ión (V
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Characterization of events and grids
Voltage Transformers characterization Ferro resonance Grid Impact
Ferro resonance
Inrush current effect (without FeRes)
Ferro resonance
Ferro resonance
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Simulation analysis Ferro resonance generation bench
Design of a ferro resonance “killer”
Power converter resistive emulators
Ferro resonance
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Event detection
Improved voltage and current sensors
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Market and utility requirement analysis
• Fabricated the first switchgear with standard bushings double screen (+17 mm)• Voltage precision(IEC 61869-3 class CL 1)
• Amplitude Error < 1 %, • Phase Error < 1 º
• Confirmed that the type of the connectors in the MV wires does not affect to precision
Bushings detail
EUROMOLD 630A(Symmetric)
CELLPACK (Asymmetric)
Improved voltage and current sensors
Double screen Voltage sensors CL1
INTERNAL SCREENUsed for relay measurement
EXTERNA SCREENVoltage Presence Indicator
Standard COSMOS 24 kV
RedActiva Project / Rafael Mínguez Matorras
Improved voltage and current sensors
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Fase Current Transformer Homopolar Current Transformer
3 Secondary Substation installed with:Phase and Homopolar transformersDouble screen voltage transformersCommunications for online supervision
• Current precision (IEC 61869-2)1000/1 , CL 0.2S – 5P10
• Installed and tested on the factory
• Current precision (IEC 61869-2)1000/1 , CL 0.2S – 5P10
• Installed and tested on the factory
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Voltage sensor for SF6 insulated switchgear
Current Transformer
Improved voltage and current sensors
Developed a voltage sensor with precision class 0.5, amplitude better of 0.5 %, and phase better of 20’ or 0.33º
Integrated Rogowski sensors for acquiring phases and neutral currents in the electronics of automation, and protection, obtaining a precision of the set lower than 0.5 % or primary 30 mA for sensitive neutral and 0.5 % or 50 mA in phases
Asset management
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Quality analysis functionality (harmonics, THD, gaps and surges) has been developed.Also, has been developed a function for detection of intermittent faults in subestation relay. This function detect faults that are extinguished by themselves in a few milliseconds, and that over time will lead to a frank fault.
Developed a new compact version of the monitoring system located in the secondary substation. This system implements communication features based on Web Services with offices, by adding Modbus protocol for integration with devices that collect BT and MT measurements
Predictive maintenance (hardware)
• Overview of the actual operation and fault detection procedures in IN• Fault Passage Indicators behavior analysis in IN• Inverse fault particular analysis• State of the art of actual preventive maintenance methodology• Basic proposal for fault early diagnosis tool
Predictive maintenance (software)
Asset management
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Secondary substation monitoring
Current Situation
MV Failure
MV Open Phase
Over/Under voltage
LV open phase
LV open neutral
LV Phase to ground BT
LV Fused Fuse
With Supervision
MV Failure
MV Open Phase
Over/Under voltage
LV open phase
LV open neutral
LV Phase to ground BT
LV Fused Fuse
With advanced Supervision
MV Failure
MV Open Phase
Over/Under voltage
LV open phase
LV open neutral
LV Phase to ground BT
LV Fused Fuse
AvailableNot Available
Conclusions
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AUTOMATION INNOVATION OF THE ISOLATED NEUTRAL DISTRIBUTION GRID development of knowledge, tools and equipment to optimize the automation of the smart gridimproving the efficiency, providing solutions to identified problems and adding new functionalities to equipment already deployed.
Islanding Application
Solutions and tools for:Asset Management &
Predictive fault detection
Ferro resonance prevention and damping
Improved voltage and current sensors
Smart GridAutomation
(Isolated neutral grid)