Smart Circuit Breaker Load Control to Prevent Nuisance Trips
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Solution Overview
Problem
Traditional circuit breakers lack real-time monitoring and adaptive load management capabilities, leading to inefficiencies and frequent nuisance trips due to underutilization of circuit capacity and inability to dynamically adjust to environmental conditions.
Innovation Solution
Integration of smart circuit breakers, power distribution modules (PDMs), and a central power controller to monitor and manage electrical loads in real-time, ensuring that total load never exceeds circuit capacity by selectively disconnecting or reconnecting subloads based on current data and predefined criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional circuit breakers are used for basic overcurrent protection, then device simplicity is maintained, but real-time monitoring and adaptive load management capabilities are lost
Solution Approach 1:
The system divides the circuit protection function into two separate components: a traditional circuit breaker that handles basic overcurrent protection, and a power distribution module that provides real-time monitoring and adaptive load management. This segmentation allows each component to specialize in its function without compromising the other.
Solution Approach 2:
A power distribution module is introduced as an intermediary device between the circuit breaker and the loads. This module communicates with the circuit breaker to receive trip threshold information and actively manages subloads to prevent trips, providing adaptive control without replacing the traditional breaker's protection function.
2Reliability
If circuit breakers operate with fixed trip thresholds, then protection reliability is maintained, but adaptability to environmental conditions and time of use is reduced
Solution Approach 1:
The system transforms the static trip threshold into a dynamic parameter that can be adjusted in real-time. The power distribution module continuously monitors circuit conditions and actively manages subload connections to adapt the effective trip threshold based on environmental conditions, time of use, and circuit capacity utilization.
Solution Approach 2:
The power distribution module implements a feedback mechanism by continuously monitoring circuit current and comparing it against the trip threshold. When the threshold is approached, the module automatically disconnects subloads to prevent tripping, creating a closed-loop control system that adapts to changing conditions while maintaining protection reliability.
3Loss of information
If real-time current monitoring and communication capabilities are added to circuit breakers, then load management insight is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the real-time monitoring and communication functions from the circuit breaker and places them in a separate power distribution module. This allows the circuit breaker to maintain its simple protection function while the PDM provides advanced monitoring capabilities, reducing complexity in the breaker itself.
Solution Approach 2:
The power distribution module serves multiple functions: it monitors real-time current, communicates with the circuit breaker, manages subload connections, and provides user interface capabilities. By consolidating these diverse functions in a single multi-functional device, the system avoids duplicating capabilities across multiple components.
4Reliability
If circuits operate below capacity to avoid accidental overloads, then safety is maintained, but energy efficiency and circuit utilization are reduced
Solution Approach 1:
The power distribution module implements self-service load management by automatically monitoring circuit conditions and dynamically connecting or disconnecting subloads based on available capacity. This allows the system to safely utilize circuits closer to their full capacity without manual intervention or risk of accidental overloads.
Solution Approach 2:
The system performs preliminary action by proactively managing subload connections before overcurrent conditions occur. The power distribution module continuously monitors circuit usage and pre-emptively disconnects subloads when approaching trip thresholds, preventing nuisance trips while maximizing circuit utilization.
Data Source
AI summary
A system for managing electrical loads includes a smart circuit breaker that measures and transmits real-time current data and an updated trip threshold to a power controller. The power controller communicates with a power distribution module (PDM) that calculates available current by subtracting the present current and a safety margin from the trip threshold. The PDM dynamically disconnects or reconnects subloads, such as batteries, via relays to prevent breaker trips while maximizing circuit utilization. The system supports real-time monitoring, load prioritization, and logging, with optional user notifications. Method steps include transmitting breaker data, computing available current, and selectively controlling subloads, while software enables these functions through stored instructions for monitoring, load allocation, and event tracking. The arrangement ensures stable operation and efficient power distribution across connected devices.