Vessel DC Bus Fault Isolation and Automatic Power Reset
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Solution Overview
Problem
Traditional power systems on unmanned ships are inefficient in isolating faults and resetting power, leading to potential damage to normal equipment and increased error rates during navigation.
Innovation Solution
A vessel power safety control system comprising a load power management system with a fault protection module and a reset module, along with a real-time monitoring module and integration module, which enables real-time monitoring, fault isolation, and automatic system reset to prevent damage and ensure normal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional relays are used to control power switches on unmanned ships, then the power switching function is achieved, but the efficiency is insufficient and the risk of damage from abnormal equipment affecting normal equipment cannot be minimized
Solution Approach 1:
The patent replaces traditional mechanical relay-based power switching systems with an intelligent power management system that uses electronic control modules, microprocessors, and software algorithms to detect faults and execute power switching operations, thereby improving both reliability and operational efficiency
Solution Approach 2:
The power management system is designed to automatically detect equipment abnormalities, isolate faults, and reset power distribution without human intervention, enabling the unmanned ship's power system to self-diagnose and self-correct issues that would traditionally require manual crew intervention
2Ease of operation
If manual fault handling is used on ships with crew, then faults can be detected and reset, but the process is time-consuming and cannot be easily isolated or reset on unmanned ships
Solution Approach 1:
The system continuously monitors power consumption and equipment status in advance, maintaining baseline profiles of normal operation. When deviations occur, the pre-configured fault detection algorithms immediately trigger isolation and reset procedures, eliminating the time delay inherent in manual detection and response
Solution Approach 2:
The power management system implements continuous feedback loops that monitor equipment status, power consumption patterns, and system health metrics. This real-time feedback enables the system to detect abnormalities immediately and automatically execute fault isolation and reset procedures, ensuring rapid response without human intervention
3Productivity
If the power system continues operation during equipment failure, then continuous power supply is maintained, but the probability of abnormal power condition increases and other normal equipment may be damaged
Solution Approach 1:
The power distribution system is segmented into independently controllable zones or circuits, each with its own protection and isolation capability. When a fault is detected in one segment, the system automatically isolates only that specific segment while maintaining power supply to other healthy segments, thus preventing cascade failures and protecting normal equipment
Solution Approach 2:
The system employs preliminary protective measures by continuously monitoring power parameters and equipment status to detect potential faults before they cause damage. Upon detection, the system preemptively isolates the affected equipment and resets the power distribution, preventing the propagation of harmful effects to other normal equipment
Data Source
AI summary
The present invention discloses a vessel power safety control system and operating method thereof. The vessel power safety control system includes a load power management module, a real-time monitoring module, an integration module and a power module. The present invention can assist the autonomous ship as any occurrence of fault during navigation. Once the accident occurs, the load power management module will give an instruction to control the DC bus to switch from closed circuit to open circuit to protect other equipment. After determining whether the errors of the equipment on board is eliminated, the load power management system performs automatic system reset procedure. As such, the DC bus can be converted from an open circuit to a closed circuit to restart the power supply for the facility.