Research / Transport and mobility / WP5
WP5 · Transport and mobility
Medium voltage fast charging
In the project plan: Charging mobility - Medium-voltage charger technology
Heavy electric transport needs charging power above a megawatt. This work package aimed at an ultra-fast, bidirectional charger that connects directly to the medium-voltage grid without a 10 kV/400 V transformer, with control algorithms that let networks of such chargers support the grid, and studied the business case, legal constraints and grid impact of high-power charging for buses, trucks and ships.
✎ draftPrincipal investigators
Korneel WijnandsPrincipal investigator · Eindhoven University of Technology
Maurice RoesPrincipal investigator · Eindhoven University of Technology Mircea Lazar
Principal investigator · Eindhoven University of Technology
Pavol BauerPrincipal investigator · Delft University of Technology Sjef Cobben
Principal investigator · Eindhoven University of Technology Vladimir Cuk
Principal investigator · Eindhoven University of Technology
PhD researchers
Kaveh PouresmaeilPhd | medium voltage-connected ultrafast chargers · Eindhoven University of Technology
Sicheng GongPhd | ev charging · Eindhoven University of Technology
Victor Reyes DrekePhd | control of medium-voltage fast chargers · Eindhoven University of Technology
Ygor Pereira MarcaPhd | medium-voltage ultra fast chargers · Eindhoven University of Technology
Other researchers
Co-investigator · Eindhoven University of Technology Guus Pemen
Co-investigator · Eindhoven University of Technology Henk Huisman
Co-investigator · Eindhoven University of Technology Koen Kok
Co-investigator · Eindhoven University of Technology Nico Baars
Co-investigator · Eindhoven University of Technology Zhiyong Sun
Co-investigator · Eindhoven University of Technology
Partners
About this work package
Objectives
- Develop a MV-charger proof of concept: ultra-fast bidirectional charging technology that can be
connected directly to the medium voltage electricity grid without a 10kV/400V transformer and is
especially suitable for heavy transport where high power is needed. - Determine the impact and possibilities of high power V2G (vehicle to grid) and grid support on
future grid configurations, resulting in optimal use of renewable energy. - Provide input and check output regarding the business case of MV chargers for busses, trucks and
ships. - Develop distributed control algorithms that enable grid stabilization using (multiple) MV chargers,
supporting the development of future ICT standards (input for WP8). - Provide input to and check output of the integral model to determine the impact (both positive
and negative) of these high-power chargers. - Analyse the legal ramifications of directly connected high-power chargers to the electricity grid.
- Determine optimal future charging combinations, comparing the use of fast charging, opportunity
charging, overnight charging, destination charging and caternary charging) for different business
cases (e.g. busses, ships, trucks and maybe even ultra-fast charging of regular cars). This
objective also requires a thorough analysis of individual preferences.
Activities
- Charger supported MV grid capacity optimization with societally desirable incentives and business
models (Enexis, Liander, Elaad, Enpuls, TU Delft, TU/e, HvA) - Modular bidirectional power conversion for MV grid-connected ultrafast chargers (Damen, Heliox,
IHC, Prodrive, Elaad, TU/e) - Scalable distributed control techniques for networks of grid connected high-power chargers
(Enpuls, Enexis, Liander, TU/e) - Power converter architectures with extended lifetime and zero downtime (Heliox, Prodrive, TU/e)
- Improved reliability, power
Expected output
- Publications: 8 papers in top relevant journals (IEEE transactions etc.) and 12 conference papers.
- MV Ultrafast charging technology and proof of concept MV charger (M46)
- Technical constraints for a legal framework and challenges regarding the deployment of MV
chargers (M36) - Control algorithms (including input for ICT standards and grid code) to stabilize the grid using MV
chargers (M46) - Parametrization and vetting of integral model scenarios using MV chargers, charging hubs, V2G
and different use of charging infrastructure (M35) - Estimation of the likelihood of different charging infrastructures and their impact on grid structure
and renewable energy use (M42) - Innovative technology with unique business potential for the Dutch charger and vehicle manufacturing industry (M48)
Text from the former NEON website (original page).
What the plan set out to do
Promises from the 2019 project plan, not results.
A proof-of-concept medium-voltage ultra-fast charger with bidirectional power conversion (month 46).
Distributed control algorithms that stabilise the grid using multiple MV chargers, with input for ICT standards and grid codes (month 46).
Technical constraints for a legal framework for directly connected high-power chargers (month 36).
Parametrisation and vetting of integral model scenarios with MV chargers, charging hubs and vehicle-to-grid (month 35).
An estimate of the likelihood of different charging infrastructures and their impact on grid and renewable energy use (month 42).
Innovative technology with business potential for the Dutch charger and vehicle industry (month 48).
8 papers in top journals and 12 conference papers.
Publications and talks
- LMI Synthesis of Multivariable Current Controllers for AC/AC Modular Multilevel Converters (journal-article, 2026)
- Voltage Unbalance Regulation by Charging Stations: Alternative Metrics and Logarithmic Convexification (journal-article, 2026)
- Security Region Compression via Hybrid Vertex Pruning for Enhanced Computational Efficiency (report, 2026)
- Grid Feasibility with Massive Integration: A Dutch MV Charging Infrastructure Case (phd-thesis, 2025)
- Single-stage MMC-based isolated AC/DC conversion: On operating policy, modulation scheme, and flux balancing of a MV-connected megawatt charging system (phd-thesis, 2025)
- Enabling High-Frequency Operation of MMC-Based Chargers: Frequency-Decoupled Modulation Strategy and Soft Switching (journal-article, 2025)
- Internal Energy Balancing Control of a Modular Multilevel Converter as Part of a Hybrid Transformer (journal-article, 2025)
- Rapid Feasibility Assessment of Energy Unit Integration in Distribution Networks (journal-article, 2025)
- Optimal Ultimate Bound of Synchronized Multi-Agent Systems with Quantized Control Inputs: An Input-to-State Stability Approach (conference-paper, 2025)
- Hierarchical Model Predictive Control of Modular Multilevel Converters (phd-thesis, 2024)
- Single-stage MV-connected Charger: Enabled by a direct three-phase to single-phase ac/ac MMC (phd-thesis, 2024)
- Adaptive Facet Selection in Multidimensional Hosting Capacity Region Assessment (journal-article, 2024)
- Hierarchical Model Predictive Control for Modular Multilevel Converters: A Linear Parameter Varying Approach (journal-article, 2024)
- Impact of Unbalanced Grid Voltages on Capacitor Voltage Ripple and Capacitance Selection in AC/AC MMCs (journal-article, 2024)
- Multidimensional Hosting Capacity Region in Dutch MV Grid Congestion Management (journal-article, 2024)
- Single-Stage MV-Connected Charger Using an Ac/Ac Modular Multilevel Converter (journal-article, 2024)
- Constrained Synchronization of Multi-Agent Systems Using Distributed MPC and Invariant Families of Terminal Sets (conference-paper, 2024)
- DC-bias Current Detection and Mitigation for a Three-Phase Transformer-Connected Converter through DC-Link Measurement (conference-paper, 2024)
- Harmonic-Aware Hosting Capacity Assessment for Ultrafast EV Charging Stations: A Dutch MV Grid Case Study (conference-paper, 2024)
- Hosting Capacity Region Computation in Transmission Networks: Accuracy and Complexity (conference-paper, 2024)
- Improved THD in AC/AC Modular Multilevel Converters Through Phase-Optimization of PWM (conference-paper, 2024)
- Multivariable control of ac/ac modular multilevel converters under square wave operation using Fourier expansion (conference-paper, 2024)
- Recursive Hosting Capacity Region Assessment to Further Unleash Grid Power Potential (conference-paper, 2024)
- Constraint Concentration in Distribution Networks (report, 2024)
- Multivariable control of modular multilevel converters with convergence and safety guarantees (report, 2024)
- Harmonic Current Emission Estimation of Modular Multilevel Converters in MV Charging Stations (journal-article, 2023)
- Practical deadbeat MPC design via controller matching with applications in power electronics (journal-article, 2023)
- Switching Loss Reduction for an MMC-Fed AC/DC Converter (journal-article, 2023)
- Active DC-Bias Mitigation Method for a Single-Phase Transformer-Connected Converter through DC-Link Measurement (conference-paper, 2023)
- Capacitor voltage ripple and capacitance evaluation in a direct three-phase to single-phase ac/ac MMC (conference-paper, 2023)
- Consensus-based distributed model predictive control applied to modular multilevel converters (conference-paper, 2023)
- An Extended Hosting Capacity Approach Including Energy Storage (book-chapter, 2023)
- Geometric Programming for Optimal Hosting Capacity Allocation in Radial Grids (report, 2023)
- A Novel Attack Identification Mechanism in IoT-Based Converter-Composed DC Grids (journal-article, 2022)
- Impacts of charging pricing schemes on cost-optimal logistics electric vehicle fleet operation (journal-article, 2022)
- Long-Horizon Nonlinear Model Predictive Control of Modular Multilevel Converters (journal-article, 2022)
- A consensus approach to distributed balancing control of modular multilevel converters (conference-paper, 2022)
- Single-Phase Bidirectional ZVZCS AC-DC Converter for MV-Connected Ultra-Fast Chargers (conference-paper, 2022)
- Square wave operation to reduce pulsating power in isolated MMC-based ultrafast chargers (conference-paper, 2022)
- Utilizing the Reactive Current Control Capability of an MMC-Fed AC/DC Converter for Volt-Second Balancing in Medium Frequency Transformers (conference-paper, 2022)
- Consensus of hierarchical multi-agent systems with a time-varying set of active agents (report, 2022)
- Extended operating region of modular multilevel converters using full-bridge sub-modules (conference-paper, 2021)
- Isolated MMC-based ac/ac stage for ultrafast chargers (conference-paper, 2021)
- PhD defence: Single-stage MMC-based isolated AC/DC conversion: On operating policy, modulation scheme, and flux balancing of a MV-connected megawatt charging system (phd-defence, 2025-06-30)
- PhD defence: Grid Feasibility with Massive Integration: A Dutch MV Charging Infrastructure Case (phd-defence, 2025-06-12)
- PhD defence: Hierarchical Model Predictive Control of Modular Multilevel Converters (phd-defence, 2024-11-26)
- PhD defence: Single-stage MV-connected Charger: Enabled by a direct three-phase to single-phase ac/ac MMC (phd-defence, 2024-11-20)







