CN111262345A - Ship shore power multi-control detection and self-adaptive control system - Google Patents
Ship shore power multi-control detection and self-adaptive control system Download PDFInfo
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- CN111262345A CN111262345A CN202010279152.5A CN202010279152A CN111262345A CN 111262345 A CN111262345 A CN 111262345A CN 202010279152 A CN202010279152 A CN 202010279152A CN 111262345 A CN111262345 A CN 111262345A
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention discloses a ship shore power multi-control detection and self-adaptive control system, and relates to the technical field of port power supply. The shore power supply system comprises a shore power assembly, wherein the shore power assembly comprises a power grid power supply, a power supply side switch cabinet, a variable frequency and variable voltage device and a ship shore connection switch cabinet; the ship power assembly comprises a ship diesel generator, a ship load, a ship power bus, a ship high-voltage power distribution unit, a ship low-voltage power distribution unit, a ship side switch cabinet and a ship AIS; and the bank power system master controller is connected with the bank power frequency conversion and voltage transformation device, the diesel generator of the ship, the port AIS base station and the ship power control database, and the ship power station SCADA system is connected with the bank power system master controller. The invention has the advantages that: the system adapts to various electric system ship power systems, automatically adjusts voltage frequency, and improves the adaptability of a shore power system to different electric system ships.
Description
Technical Field
The invention relates to the technical field of port power supply, in particular to a ship shore power multi-control detection and self-adaptive control system.
Background
With the rapid development of the marine industry, the requirements of the international maritime organization on ship discharge are higher and higher, and the shore power technology becomes one of the key technologies for establishing a green port by virtue of the characteristics of small pollution, no noise and low cost. However, in the conventional shore power system, a plurality of shore power systems are generally adopted to adapt to ships with different power systems, and the voltage grade selection of countries in the world is consistent with the parameters of the land power system in the country, so that the ship electrical equipment has universality. For example, the U.S. and japan use 450V and 60Hz electric systems, while the national and former soviet unions use 400V and 50Hz electric systems. Similarly, the rated frequency of the ac ship power system generally follows the frequency standard on land in various countries, 50Hz is adopted in China, and 60Hz is adopted in western europe and the united states. At present, the domestic shore power system generally adopts different shore power devices for ships with different power systems, and the ships separately operate and occupy larger port space.
At present, the shore power system of the low-voltage ship at the port needs to provide power with various combinations of voltage 400/440/690V and frequency 50/60Hz, and the shore power system which can automatically adapt to various different power systems needs to be adopted under the condition that the port operation space is limited.
Disclosure of Invention
The invention aims to provide a ship shore power multi-control detection and self-adaptive control system, which can solve the problems that different shore power devices are required to be adopted by the current domestic shore power system for ships with different power systems, the shore power devices are single in application, small in applicable ship range, large in space occupation ratio, high in cost and the like.
In order to solve the technical problems, the technical scheme of the invention is as follows: the shore power assembly comprises a power grid power supply, a power supply side switch cabinet, a variable frequency and variable voltage device and a ship shore connection switch cabinet, wherein the power supply side switch cabinet is connected with commercial power, and the variable frequency and variable voltage device comprises a voltage transformation cabinet with 400/440/690V three voltage grades and a variable frequency cabinet with 50/60Hz two frequencies;
the ship power assembly comprises a ship diesel generator, a ship load, a ship power bus, a ship high-voltage power distribution unit, a ship low-voltage power distribution unit, a ship side switch cabinet and a ship AIS, wherein the diesel generator, the ship high-voltage power distribution unit, the ship low-voltage power distribution unit and a shore power frequency conversion transformer device are connected through the ship power bus;
the shore power system master controller is connected with the shore power frequency conversion and voltage transformation device and the diesel generator of the ship through a DP bus, the shore power system master controller is connected with the shore power frequency conversion and voltage transformation device and the diesel generator of the ship and used for collecting and adjusting shore side voltage, frequency, ship voltage and frequency, the shore power system master controller is connected with a port AIS base station, the port AIS base station is connected with the ship AIS and used for ship identification, the shore power system master controller is connected with a ship electric control database and used for ship information retrieval and updating interaction, the shore power system master controller is connected with a ship-side junction switch cabinet and a ship-side switch cabinet and used for off-network switching on and off, the diesel generator, the ship load and the ship power station SCADA system are in Ethernet communication, and the ship power station SCADA system is connected with the shore power system master controller through the DP bus.
The invention has the advantages that: use one set of bank electric installation, but automated inspection berth ship electricity system compares the result that detects and boats and ships electricity system database, adapts to the boats and ships electric power system of multiple electricity system, and automatically regulated voltage frequency saves pier operation space, promotes bank electric system to the adaptability of different electricity system boats and ships, simplifies complicated operation flow, and convenient safety more, and reduce cost.
Drawings
FIG. 1 is a topological diagram of a ship shore power multi-control detection and self-adaptive control system;
FIG. 2 is an electrical diagram of a marine shore power multi-control detection and adaptive control system;
fig. 3 is a grid-connected flow chart of the ship shore power multi-control detection and self-adaptive control system.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description. The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
As shown in fig. 1, the following technical solutions are adopted in the present embodiment: the shore power assembly comprises a power grid power supply 1, a power supply side switch cabinet SE1, a variable frequency transformer device 3 and a ship shore connection position switch cabinet SE2, wherein the power supply side switch cabinet SE1 is connected with commercial power, and the variable frequency transformer device 3 comprises a transformer cabinet 31 with 400/440/690V three voltage grades and a variable frequency cabinet 32 with 50/60Hz two frequencies;
the ship power assembly comprises a ship diesel generator 5, a ship load 6, a ship power bus, a ship high-voltage power distribution unit, a ship low-voltage power distribution unit, a ship side switch cabinet SE3 and a ship AIS7, wherein the diesel generator 5, the ship high-voltage power distribution unit, the ship low-voltage power distribution unit and a shore power frequency conversion transformer device 3 are connected through the ship power bus;
the shore power system master controller 10 is respectively connected with the shore power frequency conversion and transformation device 3 and the diesel generator 5 of the ship through a DP bus 8, the shore power system master controller 10 is connected with the shore power frequency conversion and transformation device 3 and the diesel generator 5 of the ship and used for collecting and adjusting shore side voltage, frequency, ship voltage and frequency, the shore power system master controller 10 is connected with a port AIS base station 12, the port AIS base station 12 is connected with a ship AIS7 and used for ship identification, the shore power system master controller is connected with a ship electric control database 11 and used for ship information retrieval and updating interaction, a ship shore connection switch cabinet SE2 and a ship side switch cabinet SE3 are connected and used for on-off-network switching on-off, the diesel generator 5, the ship load 6 and the ship power station SCADA system 9 are in Ethernet communication, and the ship power station SCADA system 9 is connected with the shore power system master controller 10 through the DP bus 8.
Grid power supply 1: supplying power to a shore power system, namely a conventional power grid 10kV a.c.; power source side switch cabinet SE 1: when the variable-frequency and variable-voltage device 3 breaks down, the function of power-off protection is achieved; frequency conversion potential device 3: converting the power supply 1 of the power grid into a power supply suitable for the port-berthing ship; ship-shore junction switchgear SE 2: switching on and grid connection are carried out when the grid connection requirement is met; ship side switch cabinet SE 3: when the shore power fails, the system is disconnected to ensure the safety of the ship power grid; the diesel generator 5: the rotating speed can be adjusted externally to adjust the phase; the ship load 6: a vessel load not exceeding shore power system capacity; marine vessel AIS 7: the transmittable ship information comprises a ship name, a ship type and the like; DP bus 8: used for transmitting monitoring signals and sending control signals; SCADA system 9 of ship power station: monitoring and acquiring the running condition of the ship power grid in real time, and controlling the ship power grid; shore power system master controller 10: adjusting the shore side variable frequency and voltage device 3 and the ship side diesel generator 5, and performing information interaction with the ship electric system database 11; ship electric system database 11: the dock records the electric system information of the port-berthing ship and compares the electric system information with the real-time electric system of the port-berthing ship; port AIS base station 12: and identifying the information of the ships in the port, including the names of the ships, the types of the ships and the like.
The power supply side switch cabinet SE1, the variable-frequency voltage transformation device 3, the ship-shore connection switch cabinet SE2, the ship-side switch cabinet SE3 and the shore power system master controller 10 are connected through a DP bus 8, DP communication is high-speed and low-cost, the device-level control system is used for communication with distributed I/O, transmission is achieved through a port RS-485 optical cable, the shore power system master controller 10 can control the power supply side switch cabinet SE1, the ship-shore connection switch cabinet SE2 and a breaker of the ship-side switch cabinet SE3 to be switched on and off, the device can be connected with the variable-frequency voltage transformation device 3 to select a proper variable-frequency device, the variable-frequency cabinet 32 is controlled to be switched on and switched off in a grid mode, the shore power system master controller 10 and the port AIS base station 12 are connected through an Ethernet interface, a TCP/IP protocol is executed, and the ship type and information are confirmed by the power system master controller 10 according to.
The diesel generator 5, the ship load 6 and the ship power station SCADA system 9 are communicated through Ethernet and are converted into a DP communication mode through a switching interface to be connected with a shore power system master controller 10.
The ship electric control database 11 is connected with the shore power system master controller 10 through an Ethernet interface, and relevant electric control information of the ships at the port is confirmed by retrieving the ship electric control database 11 according to the feedback information of the port AIS base station 12.
As shown in fig. 2, the electrical connection diagram of the marine shore power multi-control detection and adaptive control system includes: the power supply system comprises a power grid power supply 1, a power supply side switch cabinet SE1, a transformation cabinet 31, a frequency conversion cabinet 32, an isolation transformer 33, a ship-shore connection switch cabinet SE2 and a plurality of different electric system ship loads 6.
In FIG. 2, the power grid power supply 1 to the power supply side switch cabinet SE1 and the power supply side switch cabinet SE1 to the transformer cabinet 31 are in a commercial power 10kV/50Hz power system; three transformers with different specifications can be selected from the transformer cabinet 31 to the frequency conversion cabinet 32, and the power system is 400/440/690V and 50 Hz; the frequency conversion cabinet 32 is connected with the isolation transformer 33, and 50/60Hz current including six electric systems of 400/440/690V and 50/60Hz is generated through two frequency converters; an isolation transformer 33 for bank side isolation protection to isolate respective currents of the primary and secondary windings; the isolation transformer 33 is connected to the ship load 6, and connects the shore power of the corresponding power system to the harbor ship to supply power to the load.
As shown in fig. 3, the operation flow of the marine shore power multi-control detection and adaptive control system is described below with reference to fig. 1 and 3. After the ship is berthed, the port AIS base station 12 identifies the name, the type and other information of the ship through the ship AIS7, and transmits the information to the shore power system master controller 10 through the DP bus 8, and half-double information exists between the shore power system master controller 10 and the ship power control database 11Carrying out industrial communication, and inquiring ship power grid data; through Ethernet communication, information such as real-time voltage frequency phase of a ship load 6 is transmitted to a ship power station SCADA system 9, and is transmitted to a shore power system master controller 10 through a DP bus 8; the shore power system master controller 10 is used for measuring ship real-time parameters F ([ U, F)]) And record F ([ U ] in the ship electric system database 110,f0]) And (6) carrying out comparison.
When the ship real-time parameter F ([ U, F)]) Not conforming to the data record F ([ U ] in the ship electric system database 110,f0]) The system alarms to carry out manual diagnosis, when the information in the ship electric system database 11 is lack or wrong, and the ship side confirms, new ship electric system information is input into the ship electric system database 11, when the ship electric network has an overvoltage or undervoltage condition, grid connection is stopped, and the ship side repairs the fault of the ship electric network; when the ship real-time parameter F ([ U, F)]) According to the record F ([ U ] in the ship electric system database 110,f0]) The shore power system master controller 10 adjusts the variable frequency transformer device 3 to adapt to harbor ship power control, when the shore power system master controller 10 confirms that the grid-connected condition is met, the switch cabinet SE2 at the ship-shore connection position and the ship-side switch cabinet SE3 are closed, meanwhile, the shore power system master controller 10 adjusts the variable frequency transformer device 3 and the diesel generator 5 of the ship to carry out load transfer, the load is transferred to a shore-side power supply through the ship-side power generator, the diesel generator 5 of the ship is closed, and grid connection is completed.
Introducing a function F ([ U, F)]) Sum norm PgPu、PgPfThe real-time voltage U and the frequency f of the ship power grid are judged, and the ship voltage frequency is converted into a parameter matrix, namely
F([U，f])＝[PUPu，PfPf]
Wherein a norm PgP is definedu、PgPf
380≤U≤418，PUPu＝1
425≤U≤466，PUPu＝2
655≤U≤731，PUPu＝3
47.5≤f≤52.5，PfPf＝1
57≤f≤63，PfPf＝2
| F([U，f]) | Corresponding ship power grid system |
| [1，1] | 400V，50Hz |
| [1，2] | 400V，60Hz |
| [2，1] | 440V，50Hz |
| [2，2] | 440V，60Hz |
| [3，1] | 690V，50Hz |
| [3，2] | 690V，60Hz |
| [0，0][0，1][0，2] | Voltage not meeting grid-connected requirement |
| [0，0][1，0][2，0][3，0] | Frequency not meeting grid-connected requirement |
As shown in the above table, when the function F ([ U, F ]) outputs the corresponding ship electric grid system, the function output value and the corresponding information are compared with the information in the ship electric grid system database 11 to determine whether they are consistent with each other. When the voltage and the frequency do not meet the grid-connected requirement, alarming and manual operation are carried out, fault diagnosis and elimination are carried out, and judgment is carried out again after the fault is solved.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A ship shore power multi-control detection and self-adaptive control system is characterized in that: the shore power assembly comprises a power grid power supply, a power supply side switch cabinet, a variable frequency and variable voltage device and a ship shore connection switch cabinet, wherein the power supply side switch cabinet is connected with commercial power, and the variable frequency and variable voltage device comprises a voltage transformation cabinet with 400/440/690V three voltage grades and a variable frequency cabinet with 50/60Hz two frequencies;
the ship power assembly comprises a ship diesel generator, a ship load, a ship power bus, a ship high-voltage power distribution unit, a ship low-voltage power distribution unit, a ship side switch cabinet and a ship AIS, wherein the diesel generator, the ship high-voltage power distribution unit, the ship low-voltage power distribution unit and a shore power frequency conversion transformer device are connected through the ship power bus;
the shore power system master controller is connected with the shore power frequency conversion and voltage transformation device and the diesel generator of the ship through a DP bus, the shore power system master controller is connected with the shore power frequency conversion and voltage transformation device and the diesel generator of the ship and used for collecting and adjusting shore side voltage, frequency, ship voltage and frequency, the shore power system master controller is connected with a port AIS base station, the port AIS base station is connected with the ship AIS and used for ship identification, the shore power system master controller is connected with a ship electric control database and used for ship information retrieval and updating interaction, the shore power system master controller is connected with a ship-side junction switch cabinet and a ship-side switch cabinet and used for off-network switching on and off, the diesel generator, the ship load and the ship power station SCADA system are in Ethernet communication, and the ship power station SCADA system is connected with the shore power system master controller through the DP bus.
2. The marine shore power multi-control detection and adaptive control system according to claim 1, wherein: after a ship arrives at a port, the port AIS base station identifies the name and the type information of the ship through the ship AIS, and transmits the name and the type information to a shore power system master controller through a DP bus, and the shore power system master controller and a ship power control database are in half-duplex communication to inquire ship power grid data; the real-time voltage frequency phase information of the ship load is transmitted to an SCADA system of a ship power station through Ethernet communication and transmitted to a shore power system main controller through a DP bus; the shore power system master controller is used for measuring ship real-time parameters F ([ U, F)]) And record F ([ U ] in the ship electrical system database0,f0]) Carrying out comparison;
when the ship real-time parameter F ([ U, F)]) Not conforming to the data record F ([ U ] in the ship electric system database0,f0]) The system alarms to carry out manual diagnosis, when the information in the ship electric system database is lack or wrong, and the ship side confirms, new ship electric system information is input into the ship electric system database, when the ship electric network has an overvoltage or undervoltage condition, the grid connection is stopped, and the ship side repairs the fault of the ship electric network; when the ship real-time parameter F ([ U, F)]) According with record F ([ U ] in ship electric system database0,f0]) The shore power system master controller adjusts the variable-frequency and variable-voltage device to adapt to harbor ship power control, when the shore power system master controller confirms that the grid-connected condition is met, the ship-shore connection switch cabinet and the ship-side switch cabinet are closed, and simultaneously the shore power system master controller adjusts the variable-frequency and variable-voltage device and diesel oil of the shipThe generator carries out load transfer, the load is transferred to a shore side power supply from the ship side generator, the diesel generator of the ship is turned off, and grid connection is completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911015911 | 2019-10-24 | ||
| CN2019110159110 | 2019-10-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310963A (en) * | 2020-11-02 | 2021-02-02 | 许继电源有限公司 | Ship shore power ordered power supply control system and control method thereof |
| CN114243461A (en) * | 2021-11-29 | 2022-03-25 | 中国船舶工业集团公司第七0八研究所 | Marine side-push transformer shore power access control system |
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| CN113472005A (en) * | 2021-06-04 | 2021-10-01 | 江苏科技大学 | Ship shore power system with distributed power supply and working method thereof |
| CN113890182A (en) * | 2021-07-30 | 2022-01-04 | 交通运输部天津水运工程科学研究所 | Shore power energy consumption monitoring and management system |
| CN114056150A (en) * | 2021-11-16 | 2022-02-18 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Charging pile and network system |
| CN115765194B (en) * | 2022-11-25 | 2023-11-28 | 上海船舶运输科学研究所有限公司 | Ship electric power monitoring system based on double monitoring networks |
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| CN101610036A (en) * | 2009-07-22 | 2009-12-23 | 上海国际港务（集团）股份有限公司 | A kind of movable shore power variable frequency power supply unit |
| CN102332830A (en) * | 2011-07-13 | 2012-01-25 | 国电南京自动化股份有限公司 | Double-frequency power supply device for ship shore power system |
| US9236739B2 (en) * | 2012-03-28 | 2016-01-12 | Unitron, L.P. | Apparatus for interconnecting a ship with a port power grid |
| CN103107537B (en) * | 2013-02-05 | 2015-04-01 | 张建伟 | Shore-based power supplying system |
| CN206542078U (en) * | 2017-03-10 | 2017-10-03 | 澄瑞电力科技（上海）有限公司 | A kind of bank electricity system of HLV compatible IC |
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2019
- 2019-12-12 WO PCT/CN2019/124779 patent/WO2021077571A1/en active Application Filing
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- 2020-04-10 CN CN202010279152.5A patent/CN111262345A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310963A (en) * | 2020-11-02 | 2021-02-02 | 许继电源有限公司 | Ship shore power ordered power supply control system and control method thereof |
| CN114243461A (en) * | 2021-11-29 | 2022-03-25 | 中国船舶工业集团公司第七0八研究所 | Marine side-push transformer shore power access control system |
| CN114243461B (en) * | 2021-11-29 | 2023-08-15 | 中国船舶工业集团公司第七0八研究所 | Marine side-pushing transformer shore power access control system |
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| WO2021077571A1 (en) | 2021-04-29 |
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