CN112260400A - Ship shore power monitoring control system and method - Google Patents
Ship shore power monitoring control system and method Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- H—ELECTRICITY
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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Abstract
The invention relates to a ship shore power monitoring control system.A local monitoring device is connected with a plurality of communication units through Ethernet and is communicated with ship-based equipment, shore-based equipment and metering and charging equipment; the on-site monitoring device is communicated with the ship-based equipment to acquire a tension state, a wire length state, a slip ring temperature, a grounding state, a ship connection state and ship-based alarm information uploaded by a cable drum; automatically controlling the power supply of the winding drum to be disconnected according to the ship-based alarm information; monitoring with shore-based equipment, and acquiring the running state of a frequency converter, shore-based alarm information, power supply power and a switching state; acquiring the connection state of the power connection box and the cable drum and the grounding fault information; automatically cutting off a circuit breaker of a power connection box according to shore-based alarm information; and communicating with a metering and charging device, acquiring uploaded voltage and current information and running time, and metering the power supply price by combining a reference price.
Description
Technical Field
The invention relates to the technical field of power monitoring, in particular to a ship shore power monitoring control system and method.
Background
The department of transportation in 2015 printed a special action implementation scheme for preventing and controlling pollution of ships and ports, and 90% of main ports used shore power as ships and business ships. About 30 sets of high-voltage port shore power system facilities are newly added from the whole country to the end of 2017, and about 840 sets of low-voltage port shore power system facilities are newly added. The actual operation reliability of the shore power station and the efficiency of newly-built construction play a significant role in the development process of the shore power.
Along with the expansion of the field of shore power and the rapid increase of practical requirements of shore power, the construction period of a newly-built station and the reliability and the operation efficiency of a commissioning station are greatly improved from the past, so that the application of a shore power station taking 'simplifying engineering configuration difficulty and improving working efficiency' as a guiding principle is provided to be particularly necessary, and in the actual implementation process, the optimization is carried out based on the operation mode of the existing shore power station, so that a new revolution of revolution can be certainly realized in the construction and operation processes of the shore power station in the future.
Disclosure of Invention
Aiming at the problems that the existing distributed monitoring network is high in cost and cannot position objects in images, the invention provides a ship shore power monitoring control system and method, which can improve the running reliability of a shore power station, reduce the difficulty of engineering implementation and greatly reduce the engineering implementation period and debugging period.
In order to achieve the aim, the invention provides a ship shore power monitoring control system, which comprises an on-site monitoring device, an Ethernet, a plurality of communication units, a field bus, shore-based equipment, ship-based equipment, metering equipment and a monitoring center, wherein the Ethernet is connected with the on-site monitoring device;
the on-site monitoring device is connected with a plurality of communication units through Ethernet and is communicated with ship-based equipment, shore-based equipment and metering and charging equipment;
the in-situ monitoring device is communicated with the ship-based equipment to acquire a tension state, a wire length state, a slip ring temperature, a grounding state, a ship connection state and ship-based alarm information uploaded by a cable drum; automatically controlling the power supply of the winding drum to be disconnected according to the ship-based alarm information;
the on-site monitoring device is monitored with shore-based equipment to obtain the running state of the frequency converter, shore-based alarm information, power supply power and the switching state; acquiring the connection state of the power connection box and the cable drum and the grounding fault information; and automatically cutting off the circuit breaker of the power connection box according to the shore-based alarm information.
The on-site monitoring device is communicated with the metering and charging equipment, acquires uploaded voltage and current information and running time, and measures the power supply price by combining with the reference price.
Furthermore, the on-site monitoring device comprises a protocol processing module, a control strategy module, a data statistics module, a metering management module, an intelligent alarm module and an up-forwarding module;
the protocol processing module collects and converts data from different communication media and different communication protocols;
the control strategy module controls the shore power supply according to different scenes;
the data statistics module calculates, processes and counts the acquired data;
the measurement management module acquires the uploaded voltage and current information and the uploaded running time, and measures the power supply price by combining the reference price;
the intelligent warning module pre-judges information influencing normal operation of the equipment according to the acquired data and gives early warning;
the up-forwarding module forwards the collected information and the ship-based alarm information to the superior platform system, and receives a downlink command of the superior platform system.
Furthermore, the on-site monitoring device also comprises a history library, a real-time library and a four-remote library;
the historical library is used for storing metering data, shore power service time and power, tension state, wire length state, slip ring temperature, grounding state, ship connection state, ship-based alarm information and control operation records of a winding drum;
the real-time library is used for storing data acquired in real time;
the four-remote library is used for storing control logics, algorithms and real-time running information or states of remote measurement, remote signaling, remote regulation and remote control.
Further, the control strategy module specifically controls the shore power supply according to different scenes, and includes:
different scenes comprise 6 scenes of shore-fixed type, shore-floating type, offshore fixed type, offshore floating type, ship power bank and comprehensive energy guarantee of an overwater service area;
for a shore-approaching fixed scene, all shore power equipment is placed on the shore base side, the ship shore power monitoring system automatically controls the cable to be wound and unwound according to the tide fluctuation and the tension of the cable, and when only 2 circles of winding drums remain, the shore power interface is automatically alarmed and interrupted;
for a floating type scene close to the shore, a shore power wharf needs to be configured, all shore power equipment is placed on the shore power wharf and is configured with a high-voltage winding drum, the cable tension of the high-voltage winding drum and the displacement between the high-voltage winding drum and the shore base are monitored, the position of a power supply wharf is determined by adopting GPS positioning, and when the high-voltage winding drum, the high-voltage interface box, the low-voltage shore power box and the low-voltage winding drum equipment have faults and give an alarm, a ship shore power monitoring control system controls the shore power interface to be turned;
for an offshore fixed scene, the offshore fixed scene is provided with a ship abutment, shore power equipment is arranged on the ship abutment and is provided with a floating shore power interface device, and a ship shore power monitoring control system judges water level change through detecting tension of a winding drum to control cable winding and unwinding; cutting off the power supply when the cable drum with excessive tension exceeds a set threshold;
for an offshore floating scene, shore power equipment is provided with a guide pulley, a constant tension control system and a T connection device, and a ship shore power monitoring control system monitors the state of multi-port simultaneous power supply; when the T-connection device gives an alarm or the cable tension exceeds a set threshold value, the ship shore power monitoring system controls to cut off a power supply;
for a ship power bank scene, the shore power equipment is configured with a large-capacity battery, and the charging and discharging state information of the battery and the shore-based charging pile charging control are monitored through a BMS; when the battery is overheated or the battery is overcharged and overdischarged, the ship shore power monitoring system cuts off the output channel of the battery.
For the comprehensive energy guarantee scene of the water service area, the ship shore power monitoring control system monitors all power utilization state information of the whole operation service area, and meanwhile, the normal operation of the power utilization of the whole service area is guaranteed by allocating the power utilization power of each port.
Further, 6 scenes are manually switched according to the field situation.
Further, the intelligent warning module pre-judges information influencing normal operation of the equipment according to the acquired data, and gives early warning specifically comprises:
when the tension of the cable drum is too large and exceeds a threshold value, the monitoring automatically judges the fault of the drum at the moment, and simultaneously, the PLC controls the shore power interface to be switched off.
Further, the data statistics module specifically calculates, processes and makes statistics on the acquired data includes: position information of a shore power and a shore power wharf boat and the tension of the cable are acquired through a GPS (global positioning system), and whether the cable is wound or unwound is judged; and (4) counting the power consumption frequency and power of each port, and judging the shore power operation cost and profit.
Further, after the ship connection is completed, the on-site monitoring device acquires the information of the ship-based power supply system through optical fibers according to a communication protocol, and confirms the information on the monitoring system after the information is matched with the ship; after the information is checked, the current required voltage and frequency are confirmed with the ship, the parameters are sent to the variable frequency power supply, and after all the information is checked, a switching-on control command is sent to the variable frequency power supply from the monitoring system.
And further, after a switching-on control command is sent, sequentially controlling the switches of the T-connection boxes to be switched on according to the current ship stop sequence.
The technical scheme of the invention has the following beneficial technical effects:
the monitoring control system can improve the operation reliability of the shore power station, reduce the difficulty of engineering implementation and greatly reduce the engineering implementation period and the debugging period. The technology is mainly characterized in that a set of universal system architecture is used for adapting to different shore power application scenes, and the high-low voltage shore power monitoring control technology is comprehensively solved, and specifically comprises the following steps: based on a message bus, the service processing modules under different scenes are adapted through an abstract unified data interface, corresponding service clusters are loaded according to different application scenes, the 'multi-equipment ordered power supply control' under the high-low voltage shore power scene is realized, and the actual operation requirement of flexible metering and charging of a user is realized through a local deployment/networked deployment mode. Therefore, the actual operation efficiency of the shore power station is improved while the engineering configuration difficulty is simplified.
Drawings
FIG. 1 is a system service architecture diagram of the present invention;
FIG. 2 is a diagram of the system network architecture of the present invention;
FIG. 3 is a schematic diagram of a variable frequency power supply control strategy;
FIG. 4 is a schematic diagram of a T-connection power control strategy;
fig. 5 is a schematic structural diagram of a data forwarding module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The invention aims to provide a ship shore power monitoring control system, which is based on a mature SCADA monitoring system and a message bus, takes the simplification of engineering configuration and the reduction of debugging threshold as guidance, and takes the improvement of the operation efficiency of a shore power station as a final target.
One set of system architecture is adaptive to different shore power application scenes; generally, the control technology needs to be composed of SCADA (supervisory control and data acquisition) general services and professional business modules based on a basic monitoring system; the differentiated corresponding mode of the scene is mainly embodied in a professional business module; the equipment types under all scenes of all shore power are different, and a unified data model is adopted for dealing with the equipment types; identifying the type of the current station, establishing a mapping relation between the typical equipment type and the station type, and determining the corresponding relation between different stations and different equipment; the method comprises the steps of designing a high-voltage shore power scene service cluster and a low-voltage shore power scene service cluster respectively aiming at different scenes, abstracting the interactive service types of the two types of application clusters and the universal service module to form uniform interfaces and parameters, and identifying the currently loaded application cluster through parameter definition, so that one set of system architecture is adapted to different shore power application scenes. The method has the advantages that a set of data model and a set of system architecture are maintained, so that the method can be adapted to the business of the existing shore power station to a great extent, in the specific engineering design application, the difference requirements can only modify the business service cluster without modifying the basic universal monitoring, and the availability and the stability of the shore power station are comprehensively improved.
Coordinating a multi-device ordered power supply control strategy: based on basic logic of 'interlocking protection function', the comprehensive control of 'variable frequency power supply' and 'T connection power supply' is mainly realized. The control strategy of the variable frequency power supply is as follows: after the ship connection is completed, the monitoring system acquires the information of the ship-based power supply system through the optical fiber according to a communication protocol, and confirms the information on the monitoring system after the information is matched with the ship; after the confirmation is completed, the incoming line cabinet needs to be controlled on monitoring, after the information is checked, the current required voltage and frequency are confirmed with the ship, the parameters are issued to the variable frequency power supply, and after all the information is checked, a switching-on control command is issued to the variable frequency power supply from the monitoring system. The specific flow is shown in fig. 4. And T connection power supply control strategy: the switch of the T-junction box is controlled to be switched on and off in sequence according to the current ship docking sequence (the power supply control sequence of the 1# switch → the 2# switch for the 1# ship and the 2# ship is required), different control sequences are adopted for starting/stopping respectively, and the specific flow is shown in fig. 3.
Intelligently identifying scenes, and dynamically loading a business service cluster: the method comprises the steps that a unified data interface based on message bus formatting is abstracted, a unified service interaction interface is used based on typical application of a high-voltage and low-voltage shore power scene, and data interaction between a service module and a bus is realized according to a 'data subscription' mechanism; when the monitoring system is started, automatically judging a current application scene according to current typical configuration, and loading a corresponding business service cluster; the repeated development of engineering customization is reduced to the greatest extent while the safety and consistency of data transmission are ensured, so that the engineering debugging time of the shore power station is reduced.
Deployment in place/networked deployment mode: when no superior platform exists, the station control system can provide an independent operation function, and can be matched with the superior platform to realize operation under the condition of the superior platform. When the system is deployed on site, the settlement and profit analysis part is supported by using statistical service and report service, all control authorities are set in station control, a channel for communicating with a superior platform is not configured, and a station control system does not receive information issued by any superior platform. When the network deployment of the superior platform is matched, a statistical service module for settlement/analysis is not loaded, and meanwhile, a station control report system is not matched, namely all entrances of the station control about an operation department are closed; and configuring a communication channel with a superior platform, receiving related instructions (such as charging model issuing, power supply starting/stopping instructions and the like) from the superior platform according to a communication protocol, and integrating and uploading in-station information.
A plug-in integrated communication service framework: in order to improve the usability of the system, the design concept of protocol plug-in is adopted, and the access development workload of various devices is simplified.
1) Constructing an XML file analysis component based on a message bus model, wherein the XML file analysis component is mainly used for instantiating data file contents and packaging operation files of all modules including information interfaces; the communication service framework loads the component, instantiates the accessed data service packet to form a communication service processing memory bank, and supports single-point data refreshing of each protocol data point and formation of a data object service packet.
2) According to the actual requirements of shore power operation, a design concept of module online registration/logout is adopted, and based on the characteristics of shore power station operation, the communication service framework supports online registration/logout of service modules, namely in the operation process of the communication service framework, a core operation configuration file can be modified according to requirements, and the operation/uninstallation of a specific service module is appointed, so that the difficulty of problem positioning can be greatly simplified, and the key effect is played on the positioning and troubleshooting of problems in the operation process.
Flexible and versatile data forwarding framework: a universal data forwarding service module is deployed in the shore power monitoring system, and can support data forwarding applications developed by different languages; a fixed interface is adopted between the forwarding application and the forwarding service, the difference of the communication of the service is shielded into the specific forwarding application, a forwarding service type library can be gradually formed along with the accumulation of projects, when similar access requirements are met, the interface with a superior system can be completed only by simple configuration modification, and the development workload and the debugging period can be greatly reduced. The specific architecture is shown in fig. 4.
One embodiment of a ship shore power monitoring control system, as shown in fig. 2, includes an on-site monitoring device, an ethernet, a plurality of communication units, a field bus, a shore-based device, a ship-based device, a metering device, and a monitoring center.
The on-site monitoring device is connected with a plurality of communication units through Ethernet and is communicated with ship-based equipment, shore-based equipment and metering and charging equipment.
The in-situ monitoring device is communicated with the ship-based equipment to acquire a tension state, a wire length state, a slip ring temperature, a grounding state, a ship connection state and ship-based alarm information uploaded by a cable drum; and automatically controlling the power supply of the winding drum to be disconnected according to the ship-based alarm information. Furthermore, the connection state with the ship refers to the communication between the on-site monitoring and the shore power box control panel, the connection state of the shore power box and the ship is monitored constantly, the connection state mainly refers to the on/off state, and the operation state of the shore power box capable of being remotely controlled is monitored.
The on-site monitoring device is monitored with shore-based equipment to obtain the running state of the frequency converter, shore-based alarm information, power supply power and the switching state; acquiring the connection state of the power connection box and the cable drum and the grounding fault information; and automatically cutting off the circuit breaker of the power connection box according to the shore-based alarm information.
The on-site monitoring device is communicated with the metering and charging equipment, acquires uploaded voltage and current information and running time, and measures the power supply price by combining with the reference price.
With reference to fig. 3, after the ship connection is completed, the in-situ monitoring device acquires information of the ship-based power supply system through the optical fiber according to a communication protocol, and confirms the information on the monitoring system after the information is matched with the ship; after the information is checked, the current required voltage and frequency are confirmed with the ship, the parameters are sent to the variable frequency power supply, and after all the information is checked, a switching-on control command is sent to the variable frequency power supply from the monitoring system. And after the switching-on control command is sent, sequentially controlling the switches of the T-connection boxes to be switched on according to the current ship stop sequence.
With reference to fig. 1, the on-site monitoring device includes a protocol processing module, a control policy module, a data statistics module, a metering management module, an intelligent alarm module, an up-forwarding module, a history library, a real-time library and a four-remote library.
The protocol processing module collects and converts data from different communication media and different communication protocols.
And the control strategy module controls the shore power supply according to different scenes.
The data statistics module calculates, processes and counts the acquired data; for example, position information of a shore power and a shore power wharf boat and the tension of the cable are acquired through a GPS (global positioning system), and whether the cable is wound or unwound is judged; and (4) counting the power consumption frequency and power of each port, and judging the shore power operation cost and profit.
And the measurement management module acquires the uploaded voltage and current information and the uploaded running time and measures the power supply price by combining the reference price.
The intelligent warning module pre-judges information influencing normal operation of the equipment according to the acquired data and gives early warning; for example, when the tension of the cable drum is too large to exceed the threshold value, the monitoring automatically judges that the drum is in fault at the moment, and simultaneously the PLC controls the line to be switched off.
The up-forwarding module is used for forwarding the collected information and the alarm information to the superior platform system and receiving the downlink command of the superior platform system.
The historical library is used for storing metering data, shore power service time and power, slip ring temperature, tension state, wire length state, alarm information and control operation records of the winding drum.
The real-time library is used for storing data collected in real time.
The four-remote library is used for storing control logics, algorithms and real-time running information or states of remote measurement, remote signaling, remote regulation and remote control.
The control strategy module specifically comprises the following steps of controlling the shore power supply according to different scenes:
different scenes comprise 6 scenes of shore-fixed type, shore-floating type, offshore fixed type, offshore floating type, ship electric treasure and comprehensive energy guarantee of an overwater service area:
for a fixed-type scene of landing, all shore power equipment is placed on the shore side, the cable is longer when the drum is configured, the monitoring system automatically controls the cable to be wound and unwound according to the tide fluctuation and the tension of the cable, and the shore power interface is automatically alarmed and interrupted when the drum only remains 2 circles.
For a floating type scene close to the shore, a shore power wharf boat needs to be configured in the scene, all shore power equipment is placed on the shore power wharf boat and is configured with a high-voltage winding drum, the monitoring is carried out by monitoring the cable tension of the high-voltage winding drum and the displacement of the shore base, the position of the power supply wharf boat is determined by adopting a GPS (global positioning system) positioning technology, and when equipment such as the high-voltage winding drum, a high-voltage interface box, a low-voltage shore power box and a low-voltage winding drum has a fault and gives an alarm.
For an offshore fixed scene, a ship abutment is usually arranged in the scene, equipment is usually arranged on the ship abutment and is provided with a floating shore power interface device, and monitoring is carried out to judge water level change through detecting tension of a winding drum so as to control cable winding and unwinding. The power is cut off when the cable drum is over-tensioned beyond a set threshold.
For an offshore floating type scene, as the shore power equipment is far away from a shore base, a guide pulley, a constant tension control system and a T-connection device are often arranged in the scene, so that the multi-port simultaneous power supply state can be monitored at any time. And when the T-connection device gives an alarm or the cable tension exceeds a set threshold value, the ship shore power monitoring system controls to cut off the power supply.
For the ship power bank scene, the large-capacity battery must be configured in the scene, the state information of charging and discharging of the battery is monitored through the BMS at all times, and charging control of the shore-based charging pile is achieved. When the battery is overheated or the battery is overcharged and overdischarged, the ship shore power monitoring system cuts off the output channel of the battery.
For the comprehensive energy guarantee scene of the water service area, the scene is similar to a hotel, all power consumption state information of the whole service area is monitored at the monitoring time, and meanwhile, the normal operation of the whole service power consumption is guaranteed by allocating the power consumption of each port.
Further, 6 scenes are manually switched according to the field situation.
Examples
The Yichanguo Guimaotai quan power monitoring is used as the practical application object.
Most of traditional shore power systems are in a simple power grid-shore power supply-ship connection mode, corresponding shore power monitoring systems are lacked, shore power operation, equipment monitoring, metering and charging, safety protection and the like are lacked in unified management, and after the system is adopted, all equipment in a station is highly integrated through one set of monitoring system, so that network configuration is greatly simplified.
The monitoring system in the traditional sense generally needs 20-30 days to complete the access of the equipment in the station and access to the superior system; after the system is adopted, the whole access debugging time is 9 days through a 'communication service framework integrated in a plug-in mode' and a 'flexible and universal data forwarding framework', and the working efficiency is improved by more than 2 times. At present, the system has been operated for more than half a year, no abnormality is found, and the reliability is verified.
The traditional monitoring system can only monitor the equipment and basically has no operation function; after the system is adopted, a user can not only realize the operation of the port through the monitoring system, but also realize the operation of the port by using the mobile application matched with the superior platform after accessing the superior platform.
From the practical data, the invention can adopt the station control system to operate while simplifying the engineering configuration difficulty and improving the operation reliability, thereby realizing the aim of high-efficiency operation of the shore power station.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. A ship shore power monitoring control system is characterized by comprising an on-site monitoring device, an Ethernet, a plurality of communication units, a field bus, shore-based equipment, ship-based equipment, metering equipment and a monitoring center;
the on-site monitoring device is connected with a plurality of communication units through Ethernet and is communicated with ship-based equipment, shore-based equipment and metering and charging equipment;
the in-situ monitoring device is communicated with the ship-based equipment to acquire a tension state, a wire length state, a slip ring temperature, a grounding state, a ship connection state and ship-based alarm information uploaded by a cable drum; automatically controlling the power supply of the winding drum to be disconnected according to the ship-based alarm information;
the on-site monitoring device is monitored with shore-based equipment to obtain the running state of the frequency converter, shore-based alarm information, power supply power and the switching state; acquiring the connection state of the power connection box and the cable drum and the grounding fault information; and automatically cutting off the circuit breaker of the power connection box according to the shore-based alarm information.
The on-site monitoring device is communicated with the metering and charging equipment, acquires uploaded voltage and current information and running time, and measures the power supply price by combining with the reference price.
2. The ship shore power monitoring control system of claim 1, wherein said on-site monitoring device comprises a protocol processing module, a control strategy module, a data statistics module, a metering management module, an intelligent alarm module and an up-conversion module;
the protocol processing module collects and converts data from different communication media and different communication protocols;
the control strategy module controls the shore power supply according to different scenes;
the data statistics module calculates, processes and counts the acquired data;
the measurement management module acquires the uploaded voltage and current information and the uploaded running time, and measures the power supply price by combining the reference price;
the intelligent warning module pre-judges information influencing normal operation of the equipment according to the acquired data and gives early warning;
the up-forwarding module forwards the collected information and the ship-based alarm information to the superior platform system, and receives a downlink command of the superior platform system.
3. The marine shore power monitoring and control system of claim 2, wherein said on-site monitoring means further comprises a history bank, a real-time bank, and a four-remote bank;
the historical library is used for storing metering data, shore power service time and power, tension state, wire length state, slip ring temperature, grounding state, ship connection state, ship-based alarm information and control operation records of a winding drum;
the real-time library is used for storing data acquired in real time;
the four-remote library is used for storing control logics, algorithms and real-time running information or states of remote measurement, remote signaling, remote regulation and remote control.
4. The ship shore power monitoring control system of claim 2 or 3, wherein the control strategy module specifically controls the shore power supply according to different scenarios comprises:
different scenes comprise 6 scenes of shore-fixed type, shore-floating type, offshore fixed type, offshore floating type, ship power bank and comprehensive energy guarantee of an overwater service area;
for a shore-approaching fixed scene, all shore power equipment is placed on the shore base side, the ship shore power monitoring system automatically controls the cable to be wound and unwound according to the tide fluctuation and the tension of the cable, and when only 2 circles of winding drums remain, the shore power interface is automatically alarmed and interrupted;
for a floating type scene close to the shore, a shore power wharf needs to be configured, all shore power equipment is placed on the shore power wharf and is configured with a high-voltage winding drum, the cable tension of the high-voltage winding drum and the displacement between the high-voltage winding drum and the shore base are monitored, the position of a power supply wharf is determined by adopting GPS positioning, and when the high-voltage winding drum, the high-voltage interface box, the low-voltage shore power box and the low-voltage winding drum equipment have faults and give an alarm, a ship shore power monitoring control system controls the shore power interface to be turned;
for an offshore fixed scene, the offshore fixed scene is provided with a ship abutment, shore power equipment is arranged on the ship abutment and is provided with a floating shore power interface device, and a ship shore power monitoring control system judges water level change through detecting tension of a winding drum to control cable winding and unwinding; cutting off the power supply when the cable drum with excessive tension exceeds a set threshold;
for an offshore floating scene, shore power equipment is provided with a guide pulley, a constant tension control system and a T connection device, and a ship shore power monitoring control system monitors the state of multi-port simultaneous power supply; when the T-connection device gives an alarm or the cable tension exceeds a set threshold value, the ship shore power monitoring system controls to cut off a power supply;
for a ship power bank scene, the shore power equipment is configured with a large-capacity battery, and the charging and discharging state information of the battery and the shore-based charging pile charging control are monitored through a BMS; when the battery is overheated or the battery is overcharged and overdischarged, the ship shore power monitoring system cuts off the output channel of the battery.
For the comprehensive energy guarantee scene of the water service area, the ship shore power monitoring control system monitors all power utilization state information of the whole operation service area, and meanwhile, the normal operation of the power utilization of the whole service area is guaranteed by allocating the power utilization power of each port.
5. The ship shore power monitoring control system according to claim 4, wherein 6 scenarios are manually switched according to field conditions.
6. The ship shore power monitoring control system of claim 4, wherein the intelligent warning module pre-judges information affecting normal operation of the equipment according to the collected data, and gives early warning specifically comprises:
when the tension of the cable drum is too large and exceeds a threshold value, the monitoring automatically judges the fault of the drum at the moment, and simultaneously, the PLC controls the shore power interface to be switched off.
7. The ship shore power monitoring control system of claim 4, wherein the data statistics module calculates, processes and makes statistics on the collected data specifically comprises:
position information of a shore power and a shore power wharf boat and the tension of the cable are acquired through a GPS (global positioning system), and whether the cable is wound or unwound is judged; and (4) counting the power consumption frequency and power of each port, and judging the shore power operation cost and profit.
8. The marine shore power monitoring and control system of claim 4,
after the ship connection is completed, the on-site monitoring device acquires the information of the ship-based power supply system through optical fibers according to a communication protocol, and confirms the information on the monitoring system after the information is matched with the ship; after the information is checked, the current required voltage and frequency are confirmed with the ship, the parameters are sent to the variable frequency power supply, and after all the information is checked, a switching-on control command is sent to the variable frequency power supply from the monitoring system.
9. The ship shore power monitoring and controlling system of claim 8, wherein after the "closing" control command is issued, the closing of the switches of the tee boxes is sequentially controlled according to the current ship docking sequence.
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