A method and system for detecting operational irregularities in a thermal energy exchange system, and a method of training a machine learning model
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Solution Overview
Problem
Existing thermal energy exchange systems face inefficiencies due to sub-optimal performance of customer installations, leading to increased return temperatures and operational costs, which are difficult to detect and correct using manual methods, especially in large district heating systems.
Innovation Solution
A computer-implemented method and system that uses cluster-based and instance-based processing to identify operational irregularities in thermal energy exchange systems by analyzing measurement data from substations, employing machine learning models to predict and compare outputs, and identifying faulty subsystems through predetermined threshold values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual analysis methods are used to detect faulty installations, then detection accuracy can be maintained, but the process becomes very time consuming and costly
Solution Approach 1:
The patent replaces manual analysis methods with automated machine learning models that process measurement data from thermal energy exchange systems. The system uses trained machine learning models to automatically detect operational irregularities, substituting human analysts with computational algorithms that can process large volumes of data quickly and accurately without time constraints.
2Productivity
If the system temperatures are increased to compensate for sub-optimal performance, then heat demand can be met, but energy efficiency decreases and operational costs increase
Solution Approach 1:
The patent implements a feedback mechanism where machine learning models continuously monitor measurement data from thermal energy exchange systems, detect operational irregularities, and enable corrective actions. This closed-loop feedback system identifies sub-optimal performance early, allowing operators to adjust system parameters before temperatures need to be increased, thereby maintaining energy efficiency while still meeting heat demand.
3Measurement precision
If more measurement data is collected from substations, then detection accuracy improves, but data processing complexity increases
Solution Approach 1:
The patent applies preliminary action by training machine learning models offline using historical measurement data before deploying them for real-time detection. The models are pre-trained on comprehensive datasets that include various operational conditions and fault scenarios, enabling them to process new data efficiently without requiring complex real-time analysis infrastructure. This offline training phase separates the complexity of data processing from the operational detection phase.
Data Source
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AI summary
A method and system for detecting operational irregularities in a thermal energy exchange system. Thermal energy exchange system comprises a first side, a second side and an interface between the first side and the second side. Heating/cooling is generated at the first side upstream to the interface, and heating/cooling is consumed at the second side downstream to the interface. The interface is provided by means of a plurality of substations connected to the first side and the second side, each substation being configured to facilitate thermal energy exchange between the first side and the second side. Measurement data indicative of one or more operational parameters of the first side is obtained, wherein the measurement data is collected by means of a measurement system. The measurement data is monitored so as to identify operational irregularities at the interface and/or the second side.