The theme for the CIGRE Trondheim Symposium is CHANGES NEEDED IN THE POWER SYSTEM for the Energy Transition. The aim is to provide a forum for recent research results, planning and system operations experience related to the changes the power system is undergoing because of the energy transition.

The theme of the symposium is divided into two topic streams:

PS1: Integration of renewable energy resources to the grid

  • Environmentally friendly power grid and its equipment
  • New applications and technologies applied to AC and DC onshore and offshore grid
  • AC and DC onshore and offshore grid
  • AC grid development, protection of the future meshed AC and DC system
  • Sector integration including hydrogen, EV, energy hubs, DER
  • Services/operation applied to AC and DC onshore and offshore grid
  • Monitoring the system applied to AC and DC onshore and offshore grid
  • Maintenance and Services applied to AC and DC onshore and offshore grid

PS2: Technologies supporting the power grid for energy transition to carbon neutral energy production

  • Requirements for power grid and its equipment
  • Inverter based control interacting with existing system and Converter stability issues (resonance stability, converter driven stability)
  • Coordination between AC and DC networks
  • Grid forming
  • Multivendor interoperability
  • New modelling tools
  • Planning and operation of lower inertia system
  • System analysis (technical)
  • Black start and resilience aspects including DER integration
  • Optimize and increase the capacity of the energy transmission network
  • Reliability and security – critical infrastructure

Table of content

1101    21 GW offshore wind power in Norwegian waters by 2040. System effects of demand elasticity and grid topology
1102    Cybersecurity in renewable evacuation interconnections
1105    Evaluation of DLR for each span of transmission lines using wind condition estimation results - Consideration on the necessity of comprehensive wind condition assessment in DLR -
1106    Application of BS EN 1991-1-4 for Specification of Substation Equipment on Severe Wind Speed Locations
1109    Long-term transient signal monitoring at inductive load switching with VCB – objectives and first experiences
1110    Robustness indicators for the Nordic power system
1111    Leveraging MQTT and cloud technology for effective continuous online condition monitoring of transformers
1113    Experience from the Nordic Market for Balancing Capacity
1114    Small signal analysis of grid-forming control properties
1115    Network Planning and Decision-Making under Uncertainty
1116    On the utilization of wireless transport in mission-critical packet-based operational networks for power utility
1117    Leveraging Thermal Reserves of HVDC Underground Cables in Curative System Operation – A Scenario-based Approach
1118    Risk Management Optimization for Electric Utilities
1120    Optimal and Coordinated Voltage Control: Case Study on a 132kV Norwegian Grid Subsystem
1121    Mechanisms and mitigation of bird-related power outages of power grids: a case study involving herons at a substation
1123    Security of Wide-Area Monitoring, Protection, and Control Systems: Evaluation of Stealthy Data Integrity Attacks
1124    Automatic Frequency Response Evaluation System
1127    Successful Testing of commercially-available AI for Protection Relay Setting Calculations
1132    Evaluation of voltage fluctuations due to PV output fluctuations in a distribution system with low voltage stability
1134    A Case Study on Torsional Resonance Stability Amidst Series Capacitor Upgrades in the Swedish Power System
1135    Arm equivalent circuit based and average arm model of a DC MMC branch including distributed energy storage submodules to integrate energy storage in HVDC system
1136    Review of (co-)design methods for HVDC protection systems
1137    Overhead line modeling for wide area EMT grid simulations
1138    An Economical DC-Hub System for Large Scale Renewable Energy Integration in CHINA
1141    Influence of MMC control philosophies on Multi-Terminal HVDC Design and Expandability
1145    Substation Auxiliary Power Systems - A New Approach to Supply Selection
1146    Transitioning to differential protection for offshore wind collector cables using passive sensing
1147    Holistic operation and condition assessment enabling efficient usage of equipment
1148    Mitigation of Low-Frequency Inter-Area Oscillations Using Grid-Forming Inverters
1149    Development of Distribution System and Market Operations in South Africa
1150    Eco-crossings, the effect of rock size and material on sprinkle layer on biodiversity in subsea power cable crossings
1151    Evaluation of induced voltages occurring during the repair of a high-voltage cable system - A comparison between measurement and simulation
1152    First Operational Experience With Vacuum Circuit Breakers in Austria - Measurements and Tests on the 110 kV Voltage Level
1143    DC Grid Control and Communication Architecture of MTDC
1154    On operation of renewable source and battery energy storage system integrated to the VSC-based HVDC technology
1155    Verification of wide-area wireless communication technology using Wi-Fi HaLow
1156    Fiber Optic-based Acoustic Emission Sensing Technology to Online Detect, Monitor, and Localize Partial Discharge in 400kV Cable Terminations
1158    Modelling of distributed generation in the EMS/SCADA system
1161    DCDIAS: Decentralized cross-domain identity authentication scheme for numerous power terminal equipment
1162    CIGRE fourth reliability survey on equipment
1163    Investigation of Inertia Services on Grid Stability with Low-Inertia Systems in Victoria
1164    Utilization of Grid Storage Batteries in Rural Microgrid Areas
1167    Current state of dynamic hosting capacity allocation in Australia
1168    Combined Power Voltage Transformers – a Novel Product Category
1169    Modeling Market Participation of Energy Storages in a Renewable Power System Through Loop Block Orders
1170    Outage planning in a converter dominated grid – A Finnish case study and lessons learned
1171    Addressing Transmission Congestion in India’s Renewable Energy Rich Grid using System Integrity Protection Schemes (SIPS)
1172    C4FN mixtures solutions for metal-enclosed switchgear to speed up transition to carbon neutral
1173    Coordination and arbitrage related to the insertion of Renewable Energy Sources
1174    High voltage wet design power cables with aluminum conductor
1175    The Distributed Control Centre Design Utilizing New Smart Grid Decision-Making and Control Agents for the Future Zero-Carbon Massive Electrification
1176    60 Days of Excellence: Balancing Speed, Sustainability, and Success in the Neemuch-Mandsaur Transmission Line Project".
1177    132 kV power lines - Field tests - High-resistivity ground faults
1180    Impact of Inverter-Based Resources on Power System Protection and Coordination in India's Renewable Energy-Rich Grid
1181    Cognitive Robust Optimization for Resilient Energy Storage Operation in Ports: A Case Study from Hirtshals
1182    Future test methods to assess arc hazards in cable components
1183    Challenges faced by TSO to specify, test and integrate EMT models of IBRs to support grid stability
1184    Analysis of Economic Incentives and Historical Frequency Deviations in the Nordic Power System
1185    Next Generation Integrated Platform for the management of HV assets
1186    Surge in EV Adoption Among Danish Households: Challenges for the Low-Voltage Distribution Grid
1187    Compression and bending test on a three-core HV submarine cable with SZ lay-up
1188    Improved Eigenvalue Sensitivity Method for Designing Power System Damping Controllers
1189    Adaption of Electric Tower Ascender Equipment for Transmission Line Construction Work
1190    Encrypted Traffic Identification in Power IoT based on One-Dimensional CNN with Batch Normalization
1191    Evaluation of TATL Potentials Based on Line Loading and Reaction Time
1193    Inertia in the Dutch Power Grid: Trends and Implications
1195    Lifetime Estimation based on HVDC Breakdown Strength of Thin Films Peeled from Fresh and PQ-Tested 525 kV DC-XLPE Cables
1196    Behaviour of Underground Cable Systems under Large Disturbances
1197    Conceptual Design of A Tension-leg Platform (TLP) Floating Offshore Substation Solution
1198    "Heritage Meets Innovation: Varanasi’s Power Transformation"
1199    Real-Time Verification of Digital Twin VSC Models for Loss Analysis by Calorimetric Measurement
1200    Tyrrhenian Link and Adriatic Link – Harmonized Converter Stations for Italian Underwater HVDC Connections
1201    Managing Stability in the Future Converter-Dominated Swedish Power System
1202    Advanced Pre-Terminated Dynamic Submarine Cables for Floating Offshore Wind Energy
1204    Value of demand-side flexibility by reducing grid loss costs
1205    Virtual multi-camera sky images for regional solar irradiation forecasts
1206    Inertia Estimation with Increasing Inverter-based Generation on the Grid
1209    Construction and operation of a multivendor IP network for integrated legacy analog signals
1210    A global grid frequency measurement technique for operational planning studies
1211    Assessment of Structural Robustness for modern Gas-Insulated Switchgear in Offshore Substations.
1212    LCA and ECI as a tool for sustainable procurement
1213    System strength impact on harmonic voltage management in transmission systems in relation to IBR (Inverter Based Resources) connections
1214    Leveraging Household Flexibility to Optimize Microgrid Efficiency and Resilience
1215    Predicting cables temperatures with probabilistic modelling
1217    Active Monitoring of cable temperature to facilitate overplanting
1218    Real-time calculation and visualization of corrective actions for N-1 secured Nordic system operation
1220    Impact of extreme geomagnetical storm in the Finnish Transmission Grid
1221    Operating point dependent DC-FRT requirements in partially-selective MTDC protection - North Sea Wind Power Hub pre-FEED study
1222    Current protective coordination in off-grid supplied from inverter power sources
1225    Trends on Hardware Independent Design and Testing of HVDC Control and Protection Systems
1226    Principles of Sustainable Development in Multi-Criteria Selection of Tower Types for the Development of a 400 kV Transmission System Network
1227    Transfer Capability Increase with TCSC in the German Transmission System
1230    DC fault identification in HVDC grids using machine learning algorithms
1231    HVDC control system strategy for scalable simultaneously enabled LFSM/FSM-controllers
1232    Factory system test program of LFSM/FSM-controllers for an HVDC link
1233    Wind-induced conductor motion on a long fjord crossing – Preliminary results from a novel measurement approach
1234    Substation reliability when connecting large wind farms
1235    LCA for AIS /GIS Substations at Axpo Grid and the role of DSO/TSO to become carbon neutral
1240    Design considerations of floating offshore substations for renewables
1242    Quantifying global power transformer demand and supply for grid expansion
1243    Design and Qualification of Floating Offshore Wind Substations: Insights and Challenges
1244    THE MANAGEMENT OF ELECTRICALS LINES CORRIDORS IN SENEGAL : H–P O EXAMPLE
1245    Relay Protection for Offshore Export Cables, Challenges and Solutions
1248    Mitigating Overreaching in Distance Relays and Addressing Mutual Coupling in Double-Circuit Transmission Lines
1249    Vortex Induced Vibrations (VIV) of Submarine Power Cables: A Holistic Approach
1250    High resilience of power communication using Non-Terrestrial Networks (NTNs), including Low Earth Orbit (LEO) satellites and High Altitude Platform Stations (HAPS)
1251    Advancement of Demand and Supply Forecasting Technology in Renewable Energy
1253    A short-circuit calculation method considering current-limiting strategies of inverter-based resources
1255    A Study on the Impact of EV Chargers on Transient Stability and Root-mean-square Model
1256    Stability Analysis of Grids with a High Share of IBRs – Evaluation of Parametric Interdependencies
1258    Utilizing Generative AI and RAG for Knowledge Transfer in the Electric Power Industry
1259    Sustainable Grid Growth through Migration to an MPLS-TP Packet-based Network
1263    A Comprehensive Solution Framework for Multi-node Optimal Power Generation Planning of Vietnam Power System to resolve Regional Grid Congestion Problem
1265    Voltage Droop Control Using Probabilistic and Sensitivity Analysis in AC/DC Hybrid Distribution Network
1267    Dynamic Security Assessment (DSA) application in Vietnamese power system to increase the power transfer limit and operate power system stably with a high share of renewable energy sources
1269    Challenges of converter-connected production for distance relay protection
1270    Principle, Design and Electrical Testing of DC Chopper for the BorWin6 Offshore Wind Farm Integration Project
1271    Study on Seismic Control Retrofit of Power Transmission Tower by Pantograph Damper
1272    A Case Study of Protection of an LV Microgrid
1277    Development of multi-function conductor
1278    Suitable Classification of Power System Stability Phenomena
1279    A Convex MPC Approach for the Optimal Management of BESS, Hydrogen Production and Economic Dispatch of RES within Active Distribution Systems
1280    A New Vision for HVDC Control
1281    Sensitivity Analysis in VSC-Based DC Microgrids
1282    Readiness of USA for 640kV HVDC, considering the most severe single continency
1283    The Various Constraint Relief Strategies of South Korea's Massive Generation Surplus Areas
1284    Dynamic Profile Selection for Mitigating Dielectric Stresses in Bipolar HVDC MIND Cables
1285    Ageing of Environmentally Friendly Insulation Gases by Partial Discharges
1287    Investigation of gas mixtures with GWP < 1 in HVCB development and impact on design choices
1288    Digital technology for analysing the correctness of relay protection and automation operation in real time
1289    Evaluation of arc clearing performance for a high voltage circuit breaker using a gas mixture with GWP < 1 for isolation and interruption
1292    Reference Implementation of IEC 61850 and 62351-based Generator Curtailment System with Non-Firm connection Agreements
1293    Impact of high-powered charging of electric ferries on distribution transformers
1294    IMPACT: Accelerating Renewable Energy Integration into India’s Transmission System Through Unified Control and Big Data Integration
1297    Expandability of DC Grid Control and Sequencers for Offshore Multi-Terminal HVDC Networks – a North Sea Wind Power Hub pre-FEED study
1298    Improving the Transmission Line Protection for Systems with High Penetration of IBRs
1299    Manage Grid Uncertainties using Cloud Technologies
1300    Six-phase line transmission – why do we need it and how do we do it
1302    DYNLAST – Dynamic line rating
1304    HVDC circuit breaker reliability and availability model
1305    PACS Substation Network Monitor Acceptance Tests
1309    Analysis of requirements on multi-terminal ready HVDC systems
1310    Centralized Network Model in a Colombian DSO Company for Enhanced Planning and Operation
1311    Development and Operation of a novel tool for real-time monitoring & intraday forecasting of reactive power demand & reserve in Vietnam power system
1312    Strengthening SCADA and EMS Systems for a Sustainable Energy Transition: Experience in Vietnam
1313    Solutions for calculating and monitoring minimum operational configuration of thermal power sources on planning software and real-time SCADA/EMS systems in the context of high renewable penetration
1314    Process for Diagnosis of Observed Oscillations in IBR-dominant Systems
1315    Automatic Assessment of Voltage Regulation in Power Plants Using a Web-Based Tool Integrated with SCADA/EMS Systems
1316    Impact factors on carbon footprint for SF6 free GIS
1317    Lessons from DER Integration in Australia
1318    Evaluation on contribution of DERs to distribution networks dealing with the effect of energy transition
1319    Transformative potential of digitization, particularly in grid operation and control by use of Digital Twins
1320    Grid Stability Challenges with the Integration of Large Quantum of VRE in Close Proximity in the Indian Power System
1322    Information Security Laboratory at Power Grid Corporation of India Limited
1323    Influence of overhead powerline design on predator efficiency
1326    Asset Inventory Management for Information Security Preparedness
1329    Estimating the Norwegian circuit breaker population towards 2050
1330    A Statistical Analysis for the Switching Overvoltages in 420kV Siphon Underground Cable Systems: A Study Case in the Norwegian EHV Grid
1331    Basic Considerations - HVDC Circuit Breaker Reactor
1332    Process bus and LPIT operational experiences from eight Norwegian digital substations
1335    How reliable are offshore transmission when RE generation power is not 100% of its capacity? - A case study for hybrid offshore wind and PV in the North Sea
1336    Advancing the Economic Viability of Floating Offshore Wind through Subsea Substations
1337    EMT Studies for 132kV Offshore Wind Farms with HVDC Connection
1338    Optimization of supermarket consumption using cooling machine flexibility
1341    Compliance process for grid forming control: Best practice and way forward
1342    Dataset Manipulation for Cross-Substation Transfer Learning: A Promising Path to Enhanced Cybersecurity
1344    Real-Time Field Implementation of Adaptive Single-Phase Auto-Reclosing for EHV Transmission Lines: Lessons Learned
1346    DC System Upgrades for Optical Transport Network Deployment
1349    Comparison Between Synchronous Condensers and Grid Forming BESS in Providing System Strength Support to IBRs in Weak and Strong Power Systems Using EMT Simulation
1350    Multi-year Evolution of the Energy Balance to Optimize the Integration and Operation of Renewable Energy Sources
1351    Demand Simulator of energy transition variables for the Spanish electric power system
1352    420 kV Retrofill: from Gas-Insulated Lines to Gas-Insulated Switchgear another Step Towards the Decarbonisation of High-Voltage Switchgear Installed Base
1353    Smart Energy Meters: a tool for near Real-Time Monitoring of Voltage Stability in Low Voltage Grid with Distributed Energy Resources
1354    ONLINE NOISELESS ACOUSTIC DISCHARGE DETECTION IN INSULATION OF HV EQUIPMENT
1359    Feasibility Assessment of Offshore Energy Hub Topologies
1360    A new Data-Driven application for Secondary Voltage Regulation on Transmission Network based on Model Predictive Control for offset-free tracking
1362    Visibility as a Key Parameter for Accurate In-Cloud Icing Modelling based on weather station data 
1363    New component designs and technologies to maximize grid resilience and system lifetime
1364    Leveraging AI techniques to deploy ACOPF as a routine operational practice in the distribution network: A state-of-the-art analysis
1368    Mutual Short-Circuit Coupling of Air-Core Dry-Type Reactors in HVDC schemes
1370    DAS for ultra-long submarine interconnectors and cables
1371    Transmission Expansion in Energy System Optimization Models - a Comparative Study
1373    Assessment of vulnerabilities in the transition to SF6-free coupled onshore and offshore power grids
1376    Good environmental practices: conservation and recovery of maritime habitats
1377    Seabed interference monitoring on power cables using DAS
1378    Tackling Overhead Transmission Line Grounding System Challenges through Introduction of Mechanisms for Enhanced Grounding Management and Maintenance Processes
1379    Telecoms Modelling Tools in Carbon Neutral Power Generation
1380    Enhancing Reliability of Floating HVDC Substations through Monitoring and Inspections
1382    Large-scale Electromagnetic Transient Simulation of the French grid: Challenges and Solutions
1383    Quantum-resistant grid communications with enhanced MACsec
1385    Revitalizing Busbar Protection: A Comprehensive Field Experience Utilizing Failure Modes and Effects Analysis (FMEA) in Large EHV Substations
1386    Use of Monopole & Ultra Narrow base Towers in High RoW area
1387    Thermomechanical Modelling of Cables in Flexible Installations
1384    The role of the Grid Forming technology in the decarbonisation of the italian electricity grid
1390    Substation equipment design considerations due to short-circuit impact of HVDC converter and other IBR with grid forming control
1391    An Advanced Cyber-Physical System Security Testbed for Substation Automation
1393    Use of Inherent Damping Capability of Thyristor Controlled Series Compensators to Mitigate Wind Sub-Synchronous Controller Interactions in Heavily Series Compensated Networks
1396    Energy infrastructure sustainable planning using Pathfinder
1397    Inovative Monitoring Systems for High Voltage Power Lines: Laser Sag Meter and Electric Line Ice Sag Accretion monitor
1398    EVOLUTION TO CENTRALIZED PROTECTION & CONTROL
1401    General approaches to the development of advanced power system modelling tools
1404    Installation of underground cables through peatland and challenging terrain to support decarbonisation of a remote Scottish Island
1407    Indicator-based Identification of Critical Grid Situations for Voltage Stability Analyses in Future Transmission Grids
1408    Digital Twins for DSOs and Consumers Coordination and Interoperability: Problem statement and Challenges
1409    Application of the IEC harmonic allocation framework in an interconnected transmission system: Experiences and Lessons learned
1411    Impact of Voltage Difference between IBRs and Point of Interconnection on Design and Performance of Renewable Plants
1412    Offshore Wind Power Plants and Energy Hub Integration
1415    Demystifying IT-OT Convergence: Strengthening Critical Infrastructure Security Through DMZ Implementation and Cross-Domain
1416    Determination of Sub-Transient Short-Circuit Current Equivalents of IBRs
1419    Unlocking DSO services through Centralised and Distributed Control
1421    Evaluation of PD commissioning tests for Dutch HV land cable systems
1422    Investigation of Non-Linear and Linear Optimal Reactive Powerflow Models for Voltage Control in Future Transmission Grids
1423    Enhancing Power System Simulation Interoperability: Application of Functional Mock-up Interface for Model Exchange
1424    Failure Investigation Analysis for Switching Overvoltage Stresses in a Cross-Bonding Joint of a 380kV Siphon Underground Cable System in the Netherlands
1426    Planning and Performance Standards for HVDC Systems: Benchmarking of International Practice and Approach for North America
1428    Assessment of Grid Forming capabilities of HVDC links with analytical envelopes - Application to HVDC link with grid forming on both sides
1429    Planning the future power grid for the energy transition: routing through multicriterial Geographical Information Systems (GIS) modelling
1431    Virtual Reality and gamification as tools for operation and maintenance of Power Transmission Lines - A practical case
1432    Voltage Control Stability of Grid Forming Wind Turbines During Faults
1433    Concept of integrating PACS Project Blueprint design and IEC 61850 Top-Down engineering
1435    Impact of MVDC Cables on the Energy Transition
1437    Transient Effects of DC Fault Current Interruption on HVDC Cable Performance in Multiterminal Network
1438    Implementation of the Security Information and Event Management (SIEM) System in ANDE's OT Network
1439    Nordic perspective on System Integrity Protection Schemes in relation to capacity allocation
1440    Towards a Sustainable and Resilient Power Grid: Implementing Circular Economy Principles and Practices
1441    Hyperconvergence in OT Networks: Implementation in ANDE's SCADA Systems and Feasibility of Operating with Virtualized Protection and Control IEDs in Substations
1443    Performance Verification of the First Grid Forming STATCOM in the US for South Fork Offshore Wind Farm
1445    Systematic literature review for application of BESS as grid forming: current issues, challenges, and future trends
1451    Monitoring the shape of a subsea dynamic cable from the floater continuously in time and space
1453    Comparison of Two Grid-Forming Controls with Inversed Droop Controls in MTDC systems
1454    Optimizing Overhead Line Maintenance: Splice and Connector Strategies
1456    Transient stability behavior in the north-south/southeast transmission corridor in Brazil under critical contingency scenarios and online global inertia monitoring
1457    Prediction of Positive/Negative Error Sign of A Day-ahead Forecast of Aggregated PV Power Output
1458    Monitoring the performance of 2.4GHZ ISM band wireless communication technologies for power grid IoT applications
1461    Methodology for valuing the flexibility attribute performed by BESS in the Brazilian Electric System
1463    Understanding the Corelation Between Wind and Solar Forecast Errors and Demand Forecast Errors in Southern Regional Grid in India
1464    Synopsis titleUnified Network Management System (UNMS)-an amalgamation of multivendor communication systems into a single centralized monitoring system.
1465    Loss-of-Mains Protection for DER in Australia
1469    Novel Anomaly Detection Machine Learning Based Model for Real-Time Monitoring of Transmission Cables Using DTS
1471    Optimal Power Supply Strategy for a Near Shore Archipelago in NEOM
1472    Overview of new transient phenomena arising in power system due to energy transition – EMT analysis of resonance in HVDC-MMC link connected to AC grid
1473    Avian collision mitigation, global best practices and technology review
1474    Experimental validation of wave propagation characteristics in EHV cables
1482    Dogger Bank wind farm – HVDC converter control interaction studies
1485    Influence of Broken Wire on Multistrand Core
1486    Enabling Large Scale Deployment of LV (Low-Voltage) Connected Solar on the Distribution Network in Ireland

Additional informations

Symposium Trondheim