Distributed Control System for Fluid Quality Monitoring

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Solution Overview

Problem

Power plants face inefficiencies and costly reactive measures due to varying fuel and fluid quality, which can lead to equipment damage and downtime, as existing systems only react to problems after they arise, rather than proactively monitoring and adjusting operations based on fluid characteristics.

Innovation Solution

A distributed control system that uses sensors to analyze fuel, water, and oil samples for contaminant levels and particulates, providing real-time data for proactive reporting and control, allowing for adjustments in power usage and fluid treatment to maintain optimal equipment operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If real-time fluid quality monitoring and analysis systems are implemented, then equipment reliability and operational efficiency are improved, but device complexity and initial costs increase

Engineering Contradiction:
Improveequipment reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary analysis of fluid quality parameters before they cause equipment damage. Sensors continuously monitor fluid characteristics and the control system proactively adjusts operations or triggers maintenance alerts before equipment failure occurs, rather than reacting after damage has been done.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback loops where sensor data about fluid quality is fed back to the control system, which then adjusts operational parameters or maintenance schedules in real-time. This closed-loop feedback ensures equipment reliability while automating the monitoring process to manage complexity.

Inventive Principle:
Principle #23Feedback

2Loss of time

If continuous fluid quality monitoring is implemented, then downtime is reduced through proactive maintenance, but energy consumption and operational costs increase

Engineering Contradiction:
ImprovedowntimeVSAvoidenergy consumption
Core Design Contradiction:
Loss of timeVSUse of energy by moving object

Solution Approach 1:

The system uses periodic sampling and analysis of fluid quality rather than continuous full-scale analysis. Sensors take measurements at defined intervals, and the control system processes data periodically to determine when maintenance is needed, reducing energy consumption while still preventing unexpected downtime.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system monitors changes in fluid quality parameters over time and triggers maintenance actions only when parameters exceed predetermined thresholds. This allows the system to operate in a low-energy state during normal conditions and activate full monitoring and maintenance protocols only when necessary, balancing downtime prevention with energy efficiency.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3339997B1System and method for plant control based on fluid quality
Publication Date: 2020.10.14 GENERAL ELECTRIC CO
  • EP3339997B1 patent drawingFigure 1
  • EP3339997B1 patent drawingFigure 2~3
  • EP3339997B1 patent drawingFigure 4

AI summary

A distributed control system 88 receives analysis data. The analysis data includes quality attributes of fluid samples and an indication of a plant location corresponding to the fluid samples. The system identifies one or more anomalies of fluid based upon the quality attributes of the plurality of fluid samples and attributes the one or more anomalies to one or more particular areas. The system triggers an alert, trigger control, or both, based at least in part upon the identified one or more anomalies and the attributed one or more particular areas.