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Stuttgart Netze
Modern measurement technology | Artificial intelligence
In 2020, Stuttgart Netze, SMIGHT, and OmegaLambdaTec began investigating whether and how network anomalies, such as cable breaks, can be detected in the low-voltage network before a power failure occurs and remedied in a timely manner. This is particularly relevant for meshed networks, as consumers are usually supplied with power from two sides. A cable failure is therefore not noticeable to the customer and can remain undetected for a long time. If the second, overloaded line fails, troubleshooting and repair are very time-consuming. In a pilot project, Stuttgart Netze installed measurement technology from the EnBW subsidiary in several cable distribution cabinets and substations in a classic residential area in the Bergheim (Weilimdorf) district. The sensors measure how much current (in amperes) flows through the individual cables at 20 of 170 possible points. These measuring points were selected on the basis of a comprehensive analysis by OmegaLambdaTec.Artificial Intelligence,
Modern Measurement Technology
Intelligent, automatic analysis algorithms are used to gain insights from the sensor data and actually detect cable breaks. As a practical test, several artificial cable breaks were manually induced in the Stuttgart network by disconnecting a cable over a period of several days. OmegaLambdaTec’s software was able to successfully detect all induced cable breaks with the help of load flow calculations.
Profile Stuttgart Netze
5,600 km of power lines, including 3,900 km of low-voltage lines
24 substation networks / 1,000 local network stations
90.000 house connections
330 employees
104 local netzwork stations with SMIGHT inside
1. Installation: 2020
Outlook & Conclusion
Following the successful pilot project, Stuttgart Netze plans to use SMIGHT in other locations as well. “We can definitely see automated measurements being used, especially in areas where we expect major changes in the coming years—for example, more electric cars or renewable energies,” says Arvid Blume, CEO of Stuttgart Netze. The system could help prioritize network expansion measures, enable a faster response to disruptions, and thus ensure a consistently high level of supply security and customer satisfaction.
Technical article: Stuttgart Netze
- How Stuttgart Netze uses modern measurement technology and data science to detect faults.
- how the project progressed and what insights were gained.
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