Method and system for determining an operational parameter of a district energy grid in a district energy system

EP4522957A1Pending Publication Date: 2025-03-19GRUNDFOS HLDG
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Patent Information

Application Number
EP2023727469
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-09-30
Filing Date
2023-05-11
Publication Date
2025-03-19

AI Technical Summary

Technical Problem

District energy grid operators face challenges in efficiently operating their systems due to limited knowledge of supply line temperatures and conditions, particularly in expanded grids, and lack of effective methods for monitoring service lines, leading to inefficiencies and costly ad-hoc repairs.

Method used

A computer-implemented method that uses existing sensor data from consumers' heat meters to estimate supply line temperatures and thermal loss parameters without requiring detailed network models, allowing for real-time monitoring and control of the district energy grid.

Benefits of technology

Enables efficient monitoring and control of district energy grids by providing accurate temperature and thermal loss data, reducing the need for physical measure points and improving maintenance planning, thus enhancing operational efficiency and reducing costs.

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Abstract

A computer-implemented method for determining one or more operational parameters of a district energy grid, the district energy grid comprising one or more supply lines and a plurality of service lines for transporting a fluid to a plurality of consumers, each supply line feeding the fluid into a plurality of service lines and each service line connecting a consumer with one of the one or more supply lines, the method comprising: obtaining measured sensor data from one or more sensors associated with one or more selected service lines of the plurality of service lines, the selected service lines being connected to at least one selected supply line of the plurality of supply lines, the received sensor data being indicative of fluid temperatures and observed fluid flows of the transported fluid received at the respective consumers at respective points in time via respective ones of said one or more selected service lines; obtaining heat loss models of heat loss in the respective selected service lines, the heat loss models relating the observed fluid temperatures and the observed fluid flows to a supply line temperature of the fluid flowing from said at least one supply line into the respective selected service lines, computing, from said heat loss models and from the received sensor data, an estimate of the one or more operational parameters, in particular of the supply line temperature in said at least one selected supply line.
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