# US 12,214,849 B2 · Vessel power safety control system and operating method thereof

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- Number: US 12,214,849 B2
- Document ID: US12214849B2
- Status: Granted
- Kind: B2
- Application number: 17/406,005
- Filed: 2021-08-18
- Published: 2022-06-02
- Granted: 2025-02-04
- Earliest claimed: 2020-12-02
- Assignees: Ship and Ocean Industries R&D Center
- Applicants: Ship and Ocean Industries R&D Center
- Inventors: Bing-Xian Chen; Han-Chun Kao; Hung-Hsi Lin; Yu-Wei Lin; Chung-Ching Lin; Sheng-Hua Chen; Hsiao-Yu Hsu; Wei-Chun Cheng
- Web page: https://patentgrep.com/patent/US12214849B2

## CPC

- B63B 79/30: for diagnosing, testing or predicting the integrity or performance of vessels
- H02H 11/00: Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- B63B 79/40: for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
- H02H 1/0007: {concerning the detecting means (in general G01R or other subclasses of G01; reed switches H01H71/2445)}
- H02H 1/0092: {concerning the data processing means, e.g. expert systems, neural networks}
- H02H 7/22: for distribution gear, e.g. bus-bar systems; for switching devices {(detecting mechanical or electrical defects in gas-insulated switchgears H02B13/065)}
- B63B 2035/007: {autonomously operating}
- B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06)
- H02H: EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS (indicating or signalling undesired working conditions G01R, e.g. G01R31/00, G08B; locating faults along lines G01R31/08; emergency protective devices H01H)

## Abstract

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.

## Claims

### Claim 1

A vessel power safety control system, comprising:
an integration module;
a real-time monitoring module, connected with the integration module; and
a load power management system, connected with the integration module;
wherein the load power management system comprises a fault protection module and a reset module;
wherein the load power management system further comprises:
at least one busbar;
at least one open circuit unit, connected with the at least one busbar and the fault protection module;
at least one power conversion unit, connected with the reset module and the at least one open circuit unit;
at least one power module, connected with the at least one open circuit unit;
at least one energy supply unit, connected with the at least one open circuit unit; and
at least one battery, connected with the at least one energy supply unit.

### Claim 2 (depends on 1)

The vessel power safety control system as claimed in claim 1, wherein the load power management system further comprises at least one hotel load, at least one standby power, at least one leakage protector, at least one capacitor or combinations thereof.

### Claim 3 (depends on 2)

The vessel power safety control system as claimed in claim 2, wherein the open circuit unit further comprises a fuse, a circuit breaker or combinations thereof, of which the interruption time is 250 μs˜170 ms.

### Claim 4 (depends on 3)

The vessel power safety control system as claimed in claim 3, wherein the circuit breaker is an unidirectional Insulated Gate Bipolar Transistor (IGBT) or a bidirectional Insulated Gate Bipolar Transistor (IGBT).

### Claim 5 (depends on 1)

The vessel power safety control system as claimed in claim 1, wherein the reset module further comprises a fault isolation module and an automatic system reset module.

### Claim 6 (depends on 5)

The vessel power safety control system as claimed in claim 5, wherein the automatic system reset module comprises a high voltage reset unit and a low to medium voltage reset unit.

### Claim 7 (depends on 1)

The vessel power safety control system as claimed in claim 1, wherein the integration module comprises a system status detecting module.

### Claim 8 (depends on 7)

The vessel power safety control system as claimed in claim 7, wherein the system status detecting module produces a normal mode, an internal fault mode or an external fault mode.

### Claim 9 (depends on 1)

An operating method of a vessel power safety control system, comprising:
(A) providing the vessel power safety control system as claimed in claim 1;
(B) when the vessel power safety control system is started, the load power management system transmitting a starting signal to the real-time monitoring module for monitoring simulation;
(C) the monitoring simulation is transmitted in real time to a system status detecting module of the integration module in order to perform a system status detection;
(D) when the system status detection producing a normal mode, continuing to the procedure of step the (B) to the step (D); otherwise, when the system status detection produces a fault mode, continuing to step (E);
(E) starting a fault protection module of the load power management system and thus giving a first interruption instruction, wherein the fault protection module executes the first interruption instruction on at least one failure equipment determined by the real-time monitoring module during an interruption time and simultaneously perform a damage inspection;
(F) according to the damage inspection, starting the reset module of the load power management system and performing a fault isolation;
(G) the system status detecting module performing the system status detection, wherein the system status detection presents the normal mode, continue to step (H); otherwise, wherein the system status detection presents the fault mode, continue to the procedures of the step (E) to the step (G) repeatedly until the system status detection shifts to the normal mode; and
(H) the reset module performing an automatic reset during a reset time and reversing back to the step (B).

### Claim 10 (depends on 9)

The operating method of the vessel power safety control system as claimed in claim 9, wherein the system status detecting module produces a normal mode, an internal fault mode, an external fault mode or combinations thereof.

### Claim 11 (depends on 10)

The operating method of the vessel power safety control system as claimed in claim 10, wherein in the step (D), where the real-time monitoring module locates occurrence of a fault and the system status detecting module further defines the fault mode as the external fault mode, the load power management system gives a second interruption instruction, followed by the step (E).

### Claim 12 (depends on 11)

The operating method of the vessel power safety control system as claimed in claim 11, wherein the second interruption instruction activates an open circuit unit associated with the occurrence of the fault to electrically isolate the occurrence of the fault from the busbar.

### Claim 13 (depends on 12)

The operating method of the vessel power safety control system as claimed in claim 12, activate the open circuit unit associated with the occurrence of the fault by means of blowing a fuse coupled to the occurrence of the fault.

### Claim 14 (depends on 9)

The operating method of the vessel power safety control system as claimed in claim 9, wherein in step (E), the interruption time is 250 μs˜170 ms.

### Claim 15 (depends on 9)

The operating method of the vessel power safety control system as claimed in claim 9, wherein in step (E), the first interruption instruction comprises activating the open circuit unit of the at least one failure equipment to electrically isolate the at least one failure equipment from a busbar.

### Claim 16 (depends on 9)

The operating method of the vessel power safety control system as claimed in claim 9, wherein in step (F), the fault isolation comprises performing a fault dropping, activating the open circuit unit associated with the occurrence of a fault or combinations thereof.

### Claim 17 (depends on 9)

The operating method of the vessel power safety control system as claimed in claim 9, wherein in step (H), the reset time ranges from 3 second to 27 second.

### Claim 18 (depends on 9)

The operating method of the vessel power safety control system as claimed in claim 9, wherein in step (H), the automatic reset further comprises a high voltage reset procedure and a low to medium voltage reset procedure.