Circuit Protection System Centralized Controller Thermal Management
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Solution Overview
Problem
Existing circuit protection systems face challenges in thermal management, operability, and current capacity, necessitating improvements in these areas.
Innovation Solution
A circuit protection system comprising a central controller communicatively coupled to multiple circuit protection devices, which include sensing modules and solid state switches, utilizing analog or digital communication links to monitor and control electrical parameters, detect fault conditions, and manage power distribution effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional circuit protection systems are used, then individual devices have sufficient current capacity, but the system requires more auxiliary components and occupies more space
Solution Approach 1:
The patent combines multiple circuit protection devices into a single integrated system with a shared controller and communication bus. Individual protection devices are simplified to contain only essential components (sensing module, switch, and communication interface), while the central controller handles complex monitoring and control functions. This merging reduces the number of auxiliary components needed in each device and decreases overall system volume while maintaining current capacity through the collective arrangement of multiple devices.
Solution Approach 2:
The central controller serves multiple functions: it monitors electrical parameters from all protection devices, detects fault conditions, controls the switching operations of individual devices, and manages system-wide protection coordination. This multi-functional approach eliminates the need for separate auxiliary components in each individual device, reducing system volume while maintaining comprehensive protection capability and current capacity across all circuits.
2Device complexity
If traditional circuit protection systems are used, then fault detection is achieved, but the system lacks centralized control and requires more auxiliary components
Solution Approach 1:
The patent extracts the complex control and monitoring functions from individual protection devices and consolidates them into a separate central controller. Each individual device is simplified to contain only the essential protection components (sensing module, switch, and communication interface). This extraction reduces the number of auxiliary components in each device while the centralized controller maintains comprehensive fault detection capability through its access to data from all devices via the communication bus.
Solution Approach 2:
The system implements a feedback mechanism where sensing modules in individual protection devices continuously monitor electrical parameters and transmit this data through the communication bus to the central controller. The controller processes this feedback information to detect fault conditions and sends control signals back to the appropriate devices to activate protection measures. This feedback loop maintains effective fault detection while reducing device complexity by eliminating auxiliary components from individual devices.
3Temperature
If decentralized control is used, then each device operates independently, but thermal management and system coordination are difficult
Solution Approach 1:
The patent merges the control functions of multiple decentralized devices into a single centralized controller that can coordinate thermal management across the entire system. The controller receives data from all sensing modules and can identify thermal issues across different devices, enabling system-wide thermal management strategies. This centralized approach improves thermal management capability while maintaining automation through the standardized communication interface and control protocols between the controller and individual devices.
Data Source
AI summary
A circuit protection system includes a plurality of circuit protection devices and a central controller. Each circuit protection device includes a protection switch for connecting or disconnecting a corresponding protected circuit, and a sensing module for sensing electrical parameter data. The central controller is in communication with each of the circuit protection devices, and is constructed to receive the electrical parameter data; determine whether a fault condition has occurred based on the electrical parameter data; and send a signal to open the protection switch for each protected circuit experiencing a fault condition.