The incorporation of large-scale renewable energy sources requires power conversion solutions which can be used on a Multi-Megawatt level. The power converter determines the behavior to the electricity grid and the extent of reactive currents as well as other power quality issues.

Critical for green hydrogen production through electrolysis

For large scale electrolysers one of the main challenges is to bring the costs per kW down. In order to achieve this, the power supply within the electrolyser must provide the best compromise between cost, power quality behavior and efficiency. The larger the power level, the more critical specialist knowledge on power conversion becomes in order to achieve this. VONK has decades of experience with high precision power supplies on a scale of 10 to 100+ Megawatt.

Each electrolyser requires its dedicated power supply to achieve the optimum balance between cost and performance. As we are fully independent, we can select the best technology and equipment to meet your requirements.

Our vast experience allows us to determine the best fitting technology for your electrolyser, whether this is a multi pulse thyristor, a Diode-IGBT, a full-IGBT (Active Front End) or a multilevel modular converter solution. We build these solutions on a fit-to-scale size with a single connection, making sure you have the least possible work and costs for integration with cables or busducts on site.

Best possible controllability with the VONK Control Platform

A co-operation with VONK will result in a power supply that exactly fits your electrolyser, with better integration characteristics and the lowest possible cost per kW. We aim for a collaborative approach and use standard building blocks to ensure rapid development for Multi-Megawatt-scale power supplies. VONK has developed its own innovative electronics control platform to support our solution. This platform has very fast response times and provides the best possible controllability currently available in the market. The control platform is the heart of the power converter and is capable of forcing the maximum power point of the electrolyser. With its dedicated communication links it can align energy from fluctuating sources with the electrolyser capacity to optimize the use of available renewable energy.

An example of a 2MW fuel cell Grid connection: