We collaborated with Statkraft to adapt a HydroCord system in their power plant to monitor magnetic imbalance for a > 100 MW generator. For this, we needed high sample rate and synchronized data from sensors measuring magnetic flux and phase reference for the generator rotor. Getting Statkraft’s analysis requirements was done in a short meeting with them. The rest of the work to do the necessary signal pre-processing and analytics in a plugin to the HydroCord system was done by us. The data capture only required one sensor for magnetic flux as we could copy the analog signal from the generator’s existing phase reference sensor.

VALUE: The analysis has been made and tested and will soon deliver results to Statkraft’s central data platform. The availability of this analysis will enable their maintenance department to catch early trends on fault detection magnetic imbalance for this generator rotor.

“We wanted to monitor cooling to be able to separate, maintenance needs for the cooling systems from issues that are rooted in the generating units. We had several flow measurements, but were missing measurements for temperatures, pressures, and the power input for the pumps to get the basis for the understanding we needed. We decided to capture the flow measurements by copying analog signals. The rest of the sensors were added to HydroCord together with the copied signals. For these insights we decided to do the analyses in our own data platform. HydroCord delivered aggregation of the captured raw signals for the necessary data quality.”


VALUE: “Now we can get separate insights for the cooling system and the generating units. If we in the future need a better understanding, we can move analyses closer to the data sources with very few changes.”

“We want to support a generator monitoring start-up with high-quality industrial generator data. The best way to do this was a collaboration between the start-up, our power plant expertise, and FDB to make it happen. The signals must be routed through areas that require extra attention due to signal disturbance and fire safety. Together we have found a good solution, and we are now ready to expand HydroCord to capture fifteen 10 kHz synchronous signals. We also developed an Event Catcher to deploy rules for HydroCord to extract specific data sets for the start-up’s algorithm across different data sources.”

VALUE: “Now we will not only get far better monitoring and risk management for an important asset. We are also helping to fast-track a promising technology and open further possibilities by connecting other high-quality industrial data already captured by the HydroCord system.”