CN103178599A - Shore-based power supply operation and support system of seafloor observation network - Google Patents

Abstract

The shore-based power supply operation and guarantee system of the submarine observation network disclosed by the present invention includes a shore-based power supply operation monitoring system upper computer, a mains 380V power supply, a generator, an automatic switching system, an uninterruptible power supply monitoring device, a control relay, and a main power frequency Power supply, standby power frequency power supply and DC negative high voltage monitoring system. The system of the present invention is reliable in operation, has redundant characteristics, low maintenance cost, can be operated remotely, can automatically identify fault points and make corresponding processing actions, and can realize continuous, long-term and effective monitoring of the seabed observation network platform. The electric energy supply, and the DC negative high-voltage power supply for the underwater equipment greatly reduces the cost of laying the seabed observation network and the loss of electric energy along the way. power guarantee.

Description

Shore-based Power Supply Operation and Guarantee System for Submarine Observation Network

technical field

The invention relates to a shore-based power supply operation and guarantee system for a seabed observation network.

Background technique

The shore-based power supply operation and guarantee system of the submarine observation network is to continuously transmit the power source of a given energy point to the submarine observation network, supply power for underwater observation instruments, and maintain the normal operation of each observation instrument. The quality of power supply will directly affect the normal operation of the submarine observation network. Therefore, in the construction of the entire submarine observation network, the design and construction of the power supply system play a decisive role. The existing shore-based power supply system only includes mains power and power supply cabinets, but does not have corresponding emergency equipment for power outages, nor does it have a corresponding shore-based power supply operation monitoring system for real-time monitoring of all power supply equipment and corresponding fault operations , once the power supply system fails, it will cause the paralysis of the entire submarine observation network system, causing great losses. Since the network is arranged on the seabed, it will be very difficult to maintain once a fault occurs. On the other hand, if the power supply equipment fails to operate, causing overvoltage, overcurrent, short circuit, open circuit, or excessive temperature, if no measures are taken, it will also It will cause damage to the normal operation of the entire system, and even cause the entire system to crash. Therefore, it is very necessary to monitor the operating status of each equipment in the shore-based power supply system, especially the abnormal status in real time.

Contents of the invention

The purpose of the present invention is to propose a shore-based power supply operation and guarantee system for the submarine observation network with reliable operation, fault diagnosis capability and automatic processing capability. 

The shore-based power supply operation and guarantee system of the submarine observation network of the present invention includes a shore-based power supply operation monitoring system upper computer, a mains 380V power supply, a generator, an automatic switching system, an uninterruptible power supply monitoring device, a control relay, and a main power frequency power supply , standby power frequency power supply and DC negative high voltage monitoring system;

Automatic switching system: its input terminal is connected to the output terminal of the mains 380V power supply and the output terminal of the generator power supply, and automatically detects the input voltage. When it detects that the mains voltage is lower than the set threshold, it automatically cuts off the 380V power supply and turns on Generator, when it detects that the mains voltage reaches the set threshold, it will automatically connect to the 380V power supply and cut off the generator;

Uninterruptible power supply monitoring equipment: its input terminal is connected to the output terminal of the automatic switching system. When the input voltage is lower than the set threshold, the connection with the automatic switching system is cut off, and the battery pack that comes with the uninterruptible power supply monitoring equipment is powered. When it is detected that the input voltage reaches the set threshold, the connection with the automatic switching system is restored;

Control relay: its input end is connected to the output end of the uninterruptible power supply monitoring equipment, and the output end is divided into two circuits, one is connected to the input end of the main power frequency power supply, and the other is connected to the input end of the standby power frequency power supply;

The main power frequency power supply and the backup power frequency power supply are used to transform the 380V voltage into -10kV DC voltage, and the output terminals of the main power frequency power supply and the backup power frequency power supply are connected to the input terminal of the DC negative high voltage monitoring system;

DC negative high voltage monitoring system: monitor the output voltage of the industrial frequency power supply, and its output end is connected to the underwater equipment end;

The communication interfaces of the above-mentioned automatic switching system, uninterruptible power supply monitoring equipment, control relays and DC negative high voltage monitoring system are all connected with the host computer of the shore-based power supply operation monitoring system by serial communication.

working principle:

The automatic switching system in the shore-based power supply operation and guarantee system of the submarine observation network detects the state of the mains power supply in real time. If the mains power supply voltage is lower than the set threshold, it will automatically cut off the 380V power supply, start the generator, and the power supply will be controlled by the generator. Power supply, and feed the power supply status back to the host computer of the shore-based power supply operation monitoring system. When the mains 380V power supply voltage returns to normal, the generator power supply will be cut off, and the mains will continue to supply power; the uninterruptible power supply monitoring equipment will monitor the input terminal in real time Power supply voltage, when the input voltage is lower than the set threshold, the connection with the automatic switching system will be cut off, the battery pack of the uninterruptible power supply monitoring equipment will supply power, and the status will be fed back to the host computer of the shore-based power supply operation monitoring system, An abnormal power supply alarm is issued, and when the input voltage is normal, the connection with the automatic switching system is restored, and the internal battery pack of the uninterruptible power supply monitoring equipment is charged by the power supply; the control relay receives the control of the host computer of the shore-based power supply operation monitoring system Command, when the main power frequency power supply is running normally, the control relay controls the power supply to connect the main power frequency power supply, cut off the connection of the backup power frequency power supply, and when the output voltage of the main power frequency The power supply of the power supply, and connect the power supply to the backup power frequency power supply; the main and backup power frequency power supplies convert the 380V power supply to -10kV DC negative high voltage output; the DC negative high voltage monitoring system detects the output status of the power frequency power supply in real time, and passes The serial port communication communicates with the upper computer of the shore-based power supply operation monitoring system. If an abnormality occurs, the upper computer of the shore-based power supply operation monitoring system will remotely control the relay to switch between the main and standby power sources; the software of the upper computer of the shore-based power supply operation monitoring system will The operating status and output status of the entire shore-based power supply equipment are monitored in real time, and corresponding fault handling actions are made through the control relay.

The upper computer of the shore-based power supply operation monitoring system in the present invention has two diagnostic modes for judging the fault state, threshold judgment and operation map judgment: 1) Threshold judgment: according to the preset threshold (high limit or low limit) To judge whether the relevant equipment is working normally, you can set multi-level thresholds and adopt different coping strategies for different thresholds; 2) Judgment of the operation map: If a certain device has been running normally for a period of time, you can obtain the relevant feature quantities of this device (such as Voltage, current, etc.) operating graph (histogram, probability distribution graph, etc.), compare the graph of the latest time (one hour, several hours, one day or several days) with it, if the operating graph changes greatly, you can use it accordingly Issue an early warning.

The shore-based power supply operation and guarantee system of the seabed observation network of the present invention is reliable in operation, has redundancy characteristics, low maintenance costs, can be remotely operated, can automatically identify fault points and make corresponding processing actions, and can realize seabed monitoring. The observation network platform provides continuous, long-term, and effective power supply, and adopts DC negative high-voltage power supply for underwater equipment, which greatly reduces the cost of laying the submarine observation network and the loss of power along the way, and can lay the submarine observation network in a wider area , to provide reliable power guarantee for long-term effective ocean observation.

Description of drawings

Figure 1 is a schematic diagram of the shore-based power supply operation and guarantee system of the submarine observation network.

Detailed ways

Further illustrate the present invention below in conjunction with accompanying drawing

Referring to Fig. 1, the shore-based power supply operation and guarantee system of the submarine observation network of the present invention includes a shore-based power supply operation monitoring system host computer 1, a mains 380V power supply 2, a generator 9, an automatic switching system 3, and an uninterruptible power supply monitoring device 4. Control relay 5, main power frequency power supply 6, backup power frequency power supply 7 and DC negative high voltage monitoring system 8;

Automatic switching system 3: its input terminal is connected to the output terminal of the mains 380V power supply 2 and the output terminal of the generator 9 power supply, automatically detects the input voltage, and automatically cuts off the 380V power supply when it detects that the mains voltage is lower than the set threshold , turn on the generator 9, when it is detected that the mains voltage reaches the set threshold, then automatically connect the 380V power supply, and cut off the generator 10;

Uninterruptible power supply monitoring equipment 4: its input terminal is connected with the output terminal of the automatic switching system 3, when the input voltage is lower than the set threshold value, then cut off the connection with the automatic switching system 3, the battery provided by the uninterruptible power supply monitoring equipment Group power supply, when it is detected that the input voltage reaches the set threshold, the connection with the automatic switching system 3 is resumed;

Control relay 5: its input end is connected with the output end of the uninterruptible power supply monitoring equipment 4, and the output end is divided into two routes, one is connected with the input end of the main industrial frequency power supply 6, and the other is connected with the input end of the standby industrial frequency power supply 7;

The main power frequency power supply 6 and the backup power frequency power supply 7 are used to transform the 380V voltage into -10kV DC voltage, and the output terminals of the main power frequency power supply 6 and the backup power supply 7 are connected with the input of the DC negative high voltage monitoring system 8 end connected;

DC negative high voltage monitoring system 8: monitor the output voltage of the industrial frequency power supply, and its output end is connected to the underwater equipment end.

The communication interfaces of the above-mentioned automatic switching system 3 , uninterruptible power supply monitoring equipment 4 , control relay 5 and DC negative high voltage monitoring system 8 are all connected with the host computer 1 of the shore-based power supply operation monitoring system by serial communication.

Generator among the present invention can adopt the KDE75SS3 model generator of Cape Power Company; Automatic switching system 3 can adopt the ATS automatic switching device of Cape Power Company; Uninterruptible power supply monitoring equipment 4 can adopt the Castle 3C3 EX series UPS of Shante Company Uninterruptible power supply; control relay 5 can use LR38F-2Z high-power relay; main power frequency power supply 6 and backup power frequency power supply 7 can use WWL-LSG41 power supply of Yangzhou Shuanghong Electronics Co., Ltd.; DC negative high voltage monitoring system 8 The high-voltage attenuation rod P6018A of Pinzhi PINTECH/Guangzhou Deken Electronics Co., Ltd. and the supporting Advantech data acquisition card PCI-1714 are used.

Claims (1)

1. The shore-based power supply operation and guarantee system of the submarine observation network is characterized by including the upper computer (1) of the shore-based power supply operation monitoring system, the mains 380V power supply (2), the generator (9), and the automatic switching system (3 ), uninterruptible power supply monitoring equipment (4), control relay (5), main power frequency power supply (6), backup power frequency power supply (7) and DC negative high voltage monitoring system (8); Automatic switching system (3): Its input terminal is connected to the output terminal of the mains 380V power supply (2) and the output terminal of the generator (9), automatically detects the input voltage, and when it detects that the mains voltage is lower than the set threshold, Then automatically cut off the 380V power supply, turn on the generator (9), when it is detected that the mains voltage reaches the set threshold, then automatically connect the 380V power supply, and cut off the generator (10); Uninterruptible power supply monitoring equipment (4): its input terminal is connected to the output terminal of the automatic switching system (3). When the input voltage is lower than the set threshold, the connection with the automatic switching system (3) is cut off, and the uninterruptible power supply The battery pack that comes with the monitoring equipment supplies power, and when it detects that the input voltage reaches the set threshold, the connection with the automatic switching system (3) is resumed; Control relay (5): its input terminal is connected to the output terminal of the uninterruptible power supply monitoring equipment (4), and the output terminal is divided into two circuits, one is connected to the input terminal of the main industrial frequency power supply (6), and the other is connected to the standby industrial frequency power supply (7) connected to the input; The main power frequency power supply (6) and the standby power frequency power supply (7) are used to transform the 380V voltage into -10kV DC voltage, and the output terminals of the main power frequency power supply (6) and the backup power supply power supply (7) are connected to The input terminals of the DC negative high voltage monitoring system (8) are connected; DC negative high voltage monitoring system (8): monitor the output voltage of the industrial frequency power supply, and its output end is connected to the underwater equipment end; The communication interfaces of the above-mentioned automatic switching system (3), uninterruptible power supply monitoring equipment (4), control relay (5) and DC negative high voltage monitoring system (8) are connected with the host computer (1) of the shore-based power supply operation monitoring system in series. connected by way of communication.

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