Transient High-Torque Detection in Rotating Machinery
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Solution Overview
Problem
Rotating machinery in electric power systems experiences mechanical fatigue and potential damage due to transient high-torque events caused by switching events, which can lead to equipment failure, and existing protection systems may not adequately detect or mitigate these events.
Innovation Solution
Implementing a system with intelligent electric devices (IEDs) that monitor electrical and physical parameters to calculate torque during switching events, compare it to a threshold, and take actions such as warning operators, logging data, and adjusting parameters to prevent high-torque transient events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional protection systems are used to monitor rotating machinery, then system simplicity is maintained, but transient high-torque events cannot be adequately detected or mitigated
Solution Approach 1:
The protection system is segmented into multiple functional components: torque calculation module, threshold comparison module, warning module, and mitigation module. Each component performs a specific function, allowing the system to achieve sophisticated detection capabilities while maintaining modular simplicity in implementation
Solution Approach 2:
The system calculates torque values and compares them against thresholds in advance of potential equipment failure. By performing preliminary detection and warning actions, the system can prevent or mitigate high-torque events before they cause mechanical damage, improving reliability without requiring complex real-time intervention mechanisms
2Adaptability or versatility
If switching events occur in rotating machinery, then operational flexibility is improved, but transient high-torque events cause mechanical fatigue and equipment failure
Solution Approach 1:
The system continuously monitors torque values during switching events and provides feedback through warnings when threshold values are exceeded. This feedback mechanism allows operators to adjust switching operations to avoid conditions that cause mechanical fatigue, enabling flexible operation while preventing damage
Solution Approach 2:
The system establishes torque thresholds based on equipment ratings and operational conditions before switching events occur. By having pre-defined protection levels in place, the system can cushion against the harmful effects of transient high-torque events, allowing switching operations to proceed with reduced risk of mechanical fatigue
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces the occurrence and impact of high-torque transient events, extending the useful life of rotating machinery by preventing mechanical fatigue and potential failures.
Implementation Method 1
monitor electrical parameters associated with the rotating machinery to determine a torque
Data Source
AI summary
The present disclosure relates to systems and methods for detecting transient high-torque events associated with rotating machinery in an electric power system. In one embodiment, a relay may include an electrical parameters module that receives a representation of a voltage and a current at a terminal of rotating machinery in an electric power system. A torque calculation module may continuously determine a calculated torque value for the rotating machinery using the representation of the voltage and the current at the terminal of the rotating machinery and compare each calculated torque value to a threshold. An action module may generate an alarm when the calculated torque value exceeds the threshold. A log module may generate a log comprising a peak of the calculated torque value and a time at which the peak torque value occurs.