Dynamic Voltage Event Alarm Threshold Management
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Solution Overview
Problem
Current systems for managing voltage event alarms in electrical systems often result in excessive alarms due to improperly configured thresholds, failing to differentiate between impactful and non-impactful events, leading to increased operational costs and reduced efficiency.
Innovation Solution
The implementation of a method and system that dynamically adjusts voltage event alarm thresholds based on the magnitude and duration of anomalous voltage conditions, using intelligent electronic devices (IEDs) to identify and prioritize alarms, thereby reducing unnecessary alerts and improving threshold accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixed voltage event alarm thresholds are used, then alarm configuration is simple, but excessive alarms occur due to inability to differentiate impactful and non-impactful events
Solution Approach 1:
The patent implements dynamic alarm thresholds that automatically adjust based on historical voltage event data and system impact analysis. The system transitions from static fixed thresholds to adaptive thresholds that learn from past events, allowing the alarm system to differentiate between impactful and non-impactful events while maintaining operational simplicity through automated adjustment.
Solution Approach 2:
The system incorporates feedback mechanisms where alarm performance is continuously monitored and used to refine threshold settings. By analyzing the impact of voltage events on electrical systems and feeding this information back into the threshold configuration, the system automatically optimizes alarm accuracy without requiring manual intervention.
2Measurement precision
If manual threshold adjustment is performed, then alarm accuracy can be improved, but operational complexity and time consumption increase
Solution Approach 1:
The patent enables the alarm system to self-configure thresholds by automatically analyzing historical voltage event data and determining optimal threshold settings. The system performs self-diagnosis and self-adjustment based on learned patterns from past events, eliminating the need for manual threshold configuration while maintaining high accuracy.
Solution Approach 2:
The system performs preliminary analysis of voltage event data during system operation to pre-calculate optimal threshold settings. By continuously learning from historical data in the background, the system prepares optimized thresholds in advance, so when configuration is needed, the settings are already determined and can be applied immediately without time-consuming manual analysis.
3Reliability
If multiple alarm thresholds are implemented to differentiate event impact, then alarm reliability improves, but device complexity increases
Solution Approach 1:
The patent segments voltage events into different impact categories (impactful vs. non-impactful) based on multiple criteria such as magnitude, duration, and system response. By dividing the alarm system into distinct threshold levels and impact categories, the system achieves reliable event differentiation while managing complexity through structured segmentation of alarm priorities and responses.
Data Source
AI summary
Systems and methods for managing voltage event alarms in an electrical system are provided. In one aspect of this disclosure, a method for managing voltage event alarms in an electrical system includes processing electrical measurement data from, or derived from, energy-related signals captured by at least one intelligent electronic device (IED) to identify an anomalous voltage condition at a point of installation in the electrical system. The anomalous voltage condition may correspond, for example, to a measured IED voltage being above or greater than one or more upper alarm thresholds or below or less than one or more lower alarm thresholds. The method also includes determining if the electrical system is affected by the identified anomalous voltage condition. In response to determining that the electrical system is affected by the identified anomalous voltage condition, at least one of a plurality of criteria may be chosen to adjust at least one of the upper alarm thresholds and/or at least one of the lower alarm thresholds.