Power Control Unit Load Gating for Circuit Overload Prevention
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Solution Overview
Problem
Electrical circuits often overload due to excessive demand, leading to tripped breakers and fire hazards, making it challenging to prevent circuit overload without manual intervention.
Innovation Solution
A computer-implemented method using Power Control Units (PCUs) to monitor and manage electrical loads, preventing new devices from powering on when the circuit is nearing its capacity, by communicating with other PCUs to ensure the circuit does not exceed safety thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual monitoring and intervention are used to prevent circuit overload, then the system complexity is low, but the productivity and reliability are reduced due to human error and delayed response
Solution Approach 1:
The system enables automatic self-monitoring and self-protection by having PCUs continuously track circuit load and autonomously deny power to new devices when safety thresholds are approached, eliminating the need for manual intervention while maintaining low system complexity through distributed intelligence at the outlet level
Solution Approach 2:
The system implements continuous feedback loops where PCUs monitor electrical load in real-time, communicate with central control, and receive instructions to allow or deny power based on current circuit conditions, enabling dynamic adaptation to changing load conditions and preventing overload before it occurs
2Measurement precision
If real-time monitoring of all power control units is implemented, then the measurement precision of electrical load is improved, but the loss of time for data collection and processing increases
Solution Approach 1:
The system performs preliminary calculations and predictions of circuit load status before new devices are connected, allowing the control system to pre-determine whether additional load will be safe, thus enabling rapid decision-making without time-consuming real-time data aggregation from all PCUs
Solution Approach 2:
The system divides the electrical circuit into multiple independent segments monitored by individual PCUs, each reporting to a central controller that aggregates data efficiently, allowing parallel data collection that reduces overall processing time while maintaining comprehensive monitoring coverage
3Object-affected harmful factors
If power is denied to new electronic devices to prevent overload, then the safety of the electrical circuit is improved, but the ease of operation is reduced due to user inconvenience
Solution Approach 1:
The system applies preliminary anti-action by proactively denying power to new devices that would cause overload before the harmful effect of circuit tripping or fire hazard can occur, preventing the problem rather than reacting to it after it happens
Solution Approach 2:
The PCU acts as an intermediary device between the user and the electrical circuit, mediating the connection request by evaluating safety conditions and either allowing or blocking power delivery, thus protecting the circuit while providing clear feedback to the user about why a device was denied power
Data Source
AI summary
Preventing overloading an electrical circuit includes determining, by one or more processors, an electrical load of an electrical circuit including a plurality of power control units each electrically connected to an electronic device and each electrically connected to an electrical output component powered through a circuit breaker set to trip at a safety threshold for the electrical circuit. The one or more processors receive from each of the power control units an electrical load status of the electrical circuit including the determined electrical load, and determine when a new electrical load corresponding to a new electronic device is added to the electrical circuit. The one or more processors determine when the new electrical load will cause the electrical load of the electrical circuit to exceed the safety threshold and, based on the determination, deny power to the new electronic device to prevent tripping the circuit breaker.