Supported by ambitious climate objectives, HVDC-VSC technology is playing an increasingly important role in current and future energy transmission systems. VSC technology is crucial in its contribution to the energy transition as it provides new opportunities for more and more interconnected energy markets. However, the technology is developing rapidly, and the complexity of these projects requires detailed engineering expertise. Therefore, the objective of the 5-day training course is to introduce the participants to the principles and challenges of HVDC-VSC technology and to present basic methodologies and technical hands-on experience for VSC projects.

Topics Covered

The training course, organized in close collaboration with RTE and RTE international, covers the following topics:

  • Introduction to VSC-MMC technology
  • Modelling and simulation of HVDC-VSC systems with EMTP
  • Control and protection of VSC-MMC stations
  • Introduction to DC cable technology
  • Specifications of HVDC-VSC projects
  • Maintenance of HVDC converters

Intended Audience

This course is intended for engineers, researchers, operators, and maintenance personnel who work or are planning to work on HVDC projects and would like to gain a deeper understanding of the technology. It provides up-to-date technical expertise on HVDC-VSC projects. This course is also an opportunity to meet and share with experts and colleagues who work in the HVDC field. Thank you for understanding that the number of participants will be limited.

Training Course Structure

The duration of the training course is 5 days (Mon-Fri). The training starts at 9:00 am and ends at 5:00 pm every day (except on Friday). Lunch breaks are planned from noon to 1:00 pm, the cost of which are included in the course fees.

A group dinner for participants and trainers is planned for Thursday. Training presentations and supporting materials will be provided.


Temporary EMTP licenses will be provided to the audience. EMTP will be used to illustrate models and concepts and evaluate the performances of HVDC-VSC systems.

COVID-19 regulations

With reference to the currently applicable regulations, the event is scheduled to take place on site. In case of short-term changes due to COVID, alternatives are intended to be offered, e.g. online training. For recent rules and regulations in France, please refer to: www.gouvernement.fr/en/coronavirus-covid-19





5 days


  • Industry : On demand
  • Professors & Students : On demand

Type of training

Classroom training. A training certificate will be provided at the end of the course for all attendees.


RTE Campus Transfo, Jonage, Lyon (2119 Av. Henri Schneider, 69330 Jonage, France)

The training takes place in the new premises of our real-time HVDC and FACTS laboratory within the RTE CampusTransfo, Europe’s largest campus dedicated to training and innovation in power transmission.
Learn more about the laboratory

Register here

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Sébastien Dennetière

Sébastien Dennetière

HVDC Expert & Technical Senior Advisor at RTE international

Sébastien Dennetière has a decade of experience in HVDC matters and almost two decades of experience in electrical engineering. His expertise support on HVDC projects can range from planning to maintenance. He contributes to several professional organisations, such as CIGRE, IEEE, and IEC.

In January 2010, he joined the French TSO RTE (Réseau de Transport d’Electricité) where he is currently involved in power system simulation and HVDC projects as a technical expert. One of his main tasks is to integrate HVDC/FACTS equipment to the French grid. He oversees the technical coordination of studies performed for HVDC integration in France and abroad. He was responsible for the development of detailed HVDC and wind turbines models in Uruguay and in the development of specifications for coordination of the 2 HVDC systems in Norway for the project “Equinor Johan Sverdrup VSC multivendor interoperability”.

From 2004 to 2008 he worked at the research center of EDF in the field of insulation coordination and power system simulations. From 2002 to 2004 he worked at IREQ (Hydro-Québec) on research and development activities related to the simulation and analysis of electromagnetic transients.

Sébastien Dennetière graduated from the École Supérieure d’Electricité (Supélec) France in 2002. He received his M.Sc. degree and PhD degree from the École Polytechnique de Montréal in 2003 and 2017, respectively.

Pierre Rault

Pierre Rault

HVDC Expert at RTE international

Pierre Rault has a decade of experience in HVDC matters and has supported numerous related projects. His expertise has led him to participate in working groups in charge of setting standards in the HDVC field.

He is a Power System Expert Engineer in RTE international since 2018, working mainly for the EQUINOR Johan Sverdrup project. In this position, he is involved in the coordination control philosophy of the two HVDCs links of the project. He follows replica installation and commissioning. In addition, he performs and analyses parallel tests with control replicas.

At the same time, he is the secretary of CIGRE WG B4.70: “Guide for Electromagnetic Transient Studies involving VSC converters” and member of CIGRE B4-58: “Control Methodologies For Direct Voltage And Power Flow In A Meshed HVDC Grid”. Furthermore, he is the French representant in the committees TC8 / TC22 / TC115, where he follows and reviews new standards related to VSC-HVDC. Similarly, he is a member of TC115 – WG15 – Functional Specifications for HVDC Grid Systems.

Pierre Rault has been studying and dealing with with HVDC topics since his PhD on Multiterminal VSC-HVDC grid control strategies. Beforehand, he worked at GIE IDEA (EDF/Schneider Electric/G2Lab) on wind farm connection. He was in charge of the necessary requirements and thus reviewed grid codes compliance criteria. Moreover, he developed a methodology for wind farm reactive power management.   

Pierre Rault has good proficiency in English. He holds a PhD from Ecole Centrale de Lille, France and a Master’s degree from the Institut National Polytechnique de Grenoble, France.


Hani Saad

Hani Saad

Senior HVDC Expert at RTE international

Hani Saad is Senior HVDC Expert Engineer at RTE since 2013. He is responsible for system studies of HVDC links and Wind Farm integrations in the French power transmission system. He is additionally in charge of electromagnetic transient studies and modeling in EMT-tools offline and real time simulations. He supports HVDC projects from planning to commissioning too. From 2008 to 2010, he was an engineer and researcher at TechImp Spa. and University of Bologna Service. There, he took part in the diagnostic and evaluation of partial discharges in HV electrical equipment (cables, GIS and transformers). In this position, he participated in R&D on non-conventional sensors capable of detecting partial discharges in the GIS (Gas Insulated Substation), power transformers and Switchgears. At Hydro-Québec’s Research Institute (IREQ), he studied discharges in HV stator winding and the impact of series compensation on the transients in the French transmission network.

Thanks to his extensive experience on HVDC matters, he is member of several Cigré working groups on HVDC, such as “Application guide for the insulation coordination of Voltage Source Converter HVDC (VSC HVDC) stations” and “AC Fault response options for VSC HVDC Converters”. He has contributed and published several articles on power electronics and power delivery, notably in the Wiley IEEE book. He gave conference related HVDC field and EMT-type tool and is a regular reviewer for IEEE Transactions of Power Delivery, Industrial Electronics.


Janek Liger

Janek Liger

Power Electronics Engineer at RTE

Janek Liger is an engineer in the Power Electronics Department of RTE currently working on the construction of the VSC HVDC France to Ireland Celtic Interconnector. In the last 5 years , he supported VSC interconnector projects in early stage of development (with a focus on tender specification, terms and conditions, and evaluation). He previously worked on cross-border capacity calculation and congestion management for Western European TSOs at Coreso. He graduated from the engineering school École Centrale Paris (CentraleSupelec) in 2012 and has a double degree (MSc) in Electrical Engineering from the University of Queensland (Brisbane, Australia).


Samy Akkari

Samy Akkari

HVDC expert at RTE

Samy Akkari graduated from Ecole Normale Supérieure of Cachan in applied physics and Electrical Engineering where he undertook a double master degree with Polytechnique on renewable energies and power grids. He then pushed on with a doctorate with CentraleSupélec, in collaboration with Centrale Lille, on the feasibility and control of HVDC (High Voltage Direct Current) multi-terminal electrical networks.

He is now the Asset Manager for RTE HVDC links at the National Center for Grid Expertise. He also works on the Operation & Maintenance of the INELFE link (2x1GW VSC-MMC, Siemens) and IFA2 link (1GW VSC-CTL, ABB). Finally, he is involved in the Technical Specification of future HVDC projects such as Biscay Bay and CELTIC.


Day 1 – Introduction and HVDC Technology Basics

9.00 – 12.00

  1. Introduction Session: RTEi, Training Overview, Expertise RTE
  2. Overview of HVDC technology – evolution, key drivers, and challenges
  3. HVDC MMC station main equipment description
    • Single Line Arrangements
    • Converter cell description
    • Transformer arrangement and arm reactor
    • AC/DC filters

13.00 – 17.00

  1. HVDC Grid connection requirements overview & HVDC System applications
    • French TSO Perspective and European ENTSO-E Perspective
    • Energy market participation and AC grid services– services related to V/Q and F support, Black start.
    • Offshore wind power Integration (from RTE)
    • Best practices – TSO Perspective
  2. Questions / Panel Discussions

Day 2 – DC Cable Technology and HVDC Converter Design

9.00 – 12.00

  1. Introduction to HV cable technology
  2. Cable systems in HVDC projects
    • System specifications
    • Operating conditions
    • Design criteria
    • Standards
  3. Qualification and testing
  4. Installation, Operation and maintenance, monitoring

13.00 – 17.00

  1. HVDC Converter Design from planning to operation & maintenance
    • Introduction to the different phases and design studies of HVDC-VSC projects
  2. HVDC system design studies
    • Main Circuit Arrangement
    • Sizing and Feasibility
    • PQ diagram
    • Insulation Coordination Studies
    • Harmonics and Filter Design
    • Others
  3. Introduction to HVDC system modelling
    • Simulation tools commonly used for HVDC studies
    • System modelling overview and benchmark systems
    • VSC/MMC Converter modelling
    • Other equipment– HVDC cables, offshore system

Day 3 – HVDC-VSC Control and Protection

9.00 – 12.00

  1. General description of VSC controls
  2. Specific upper-level and low-level controls for MMC converters
    • Outer control: active, reactive, dc voltage and ac voltage control
    • Inner current control
    • Energy control
    • Grid forming control
    • Capacitor balancing control
    • Modulation strategies
  3. General overview of converter protection strategy and implementation in real systems
  4. HVDC-VSC behaviour during AC fault events (balanced and unbalanced conditions)
  5. DC side transients’ analysis of typical DC faults: pole-to-ground and one-phase-to-ground faults

13.00 – 17.00

  1. EMT studies for the design and operation HVDC systems
    • EMT studies over life cycle
    • Dynamic performance studies – control system, protection system, faults
    • Harmonic Studies – frequency scan and time domain
    • Other Interaction Studies (Harmonics, Control System Interactions, Interoperability, SSTI)
  2. Real Time Simulation Studies Introduction
    • Background, presentation of Platform, Capabilities (Why and How)
    • Implementation of control and protection strategies
    • Experiences, recommendations, examples and related studies from projects
    • Presentation of HVDC Lab and site visit of RTE replicas
    • RTS example: Johan Sverdrup project presentation
  3. HVDC Grid Development and Future applications
    • Multi Terminal DC grids – scope, challenges
    • Large Power Transmission Hubs / Corridors – Foreseen challenges (multiple stakeholders, interests, benchmarking requirements)

Day 4 – Maintenance of HVDC-VSC systems and integration in AC grids

9.00 – 12.00

  1. Introduction to the maintenance principles of HVDC-VSC systems
  2. O&M Team Structure, Roles and Responsibilities, and Required Infrastructure, Facilities and Systems to Support O&M Activities
  3. Maintenance of HVDC-VSC converter stations, focus on HVDC specifics : Power electronics, auxiliary systems (cooling, climate) and controls

13.00 – 17.00

  1. Maintenance specifications
  2. Maintenance experiences and recommendations
  3. Operating a HVDC Station – TSO perspective


Backup: Depending on the progress of the course of the previous days, individual elements can be continued and taken up during the afternoon session

Evening: Joint dinner in Lyon 

Day 5 – Project Management and final Q&A session

9.00 – 12.00

  1. Basic Design approach
    • Key technical parameters (Techno/DC voltage/Topology and link to Cable technology)
    • Project valorisation
  2. Tender Principles
    • Supplier pre-selection principles (PQQ)
    • Equipment pre-qualification
    • ITT principles (Best offer versus Valorisation of technical criteria, number of rounds, etc.)
  3. Technical Specifications
    • Contract
    • Interfaces
    • Basis of Design
    • Equipment

13.00 – (before) 15:00

  1. Project Execution
    • Organisation chart
    • Design review principles (time to review, level of Employer participation in factory tests, what needs to be challenged)
    • Commissioning organisation and sequence
  2. Outlook and closing Q&A session

Register here

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We may also use this data for prospecting purposes, in particular to inform you about our services and our news. You may object to this by mentioning it in your message.

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