CN205377286U - Boats and ships high pressure bank electric system - Google Patents

Boats and ships high pressure bank electric system Download PDF

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Publication number
CN205377286U
CN205377286U CN201620068307.XU CN201620068307U CN205377286U CN 205377286 U CN205377286 U CN 205377286U CN 201620068307 U CN201620068307 U CN 201620068307U CN 205377286 U CN205377286 U CN 205377286U
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voltage
power
boats
ships
shore power
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CN201620068307.XU
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Inventor
姚立权
祖若涵
赵春雨
张楠
吕艳玲
刘肖
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Liaoning Lvgang Technology Co Ltd
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Liaoning Lvgang Technology Co Ltd
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Abstract

The utility model discloses a boats and ships high pressure bank electric system, this system is by high -voltage frequency converters power supply unit, high pressure bank electronic box, high tension cable reel and on -board transformer substation constitute, be provided with boats and ships distribution bus between high tension cable reel and the on -board transformer substation, on -board transformer substation one end still is provided with boats and ships distribution bus, the electric substation supplies power to high -voltage frequency converters power supply unit by the wharf apron harbor district, high -voltage frequency converters power supply unit is with electric network source through the vary voltage, the power of back output is handled in the frequency conversion, its utilize the cable pit with carry the landing stage with cable laying to the high -pressure bank electronic box in, in the process of transmission, carry boats and ships distribution bus or boats and ships distribution bus with the power, adopt after this system, during boats and ships reach port, by the high -voltage frequency converters power with electric wire netting 10kV50Hz power through the vary voltage, the back is handled in the frequency conversion, output 6.6kV60Hz or 6kV50Hz's power, supply power through harbour electric network source, the harbour provides shore power source's voltage, the frequency, power etc. Satisfy the boats and ships essential whole electric power facility power consumption demands in back of berthing.

Description

A kind of boats and ships high voltage shore power system
Technical field
This utility model relates to a kind of bank electricity system providing power supply for boats and ships, particularly relates to a kind of boats and ships high voltage shore power system.
Background technology
In recent years, the concept at " green harbour " constantly occurs in each big frontier science and technology field, and environmental protection intermediate item, clean energy resource popularization and application etc. are as the planned project of each Port.
The whole world ten big container hargours there are seven in China.Although the boats and ships accessed to the ports and lorry bring goods and economic development, but also exacerbate the air pollution of harbour and surrounding area.The Air Pollutants of boats and ships, port cargo vehicle and harbour facilities discharge includes particulate matter, sulfur dioxide and nitrogen oxides.Air quality, climate change and health all can be had a negative impact by these pollutant.2014 in Shanghai, Shenzhen, the inland port city such as Tianjin, the degree of Pollution From Ships is very severe.Country formulates and implements boats and ships discharge standard as early as possible to have shutting mechanism to have been proposed that, establish and improve green harbour evaluation system, carry out country's Ship and port emission inventories establishment, the low sulfuration of propelling ship oil product, carry out Ship and port prevention and cure of pollution pilot in the area of condition maturity in advance.
Ship shore electric refers to that boats and ships are stopped using marine generator to use shore electric power instead during reaching port and powered.The shore electric power in port district (harbour) is divided into high-tension system and low voltage electrical system.All the time, bank electricity system many employings low pressure 440V powers.And for large ship, owing to electrical equipment loads various on ship are very big, according to low-voltage power supply, when transmission power is certain, the electric current flowing through cable is bigger, it is desirable to harbour provides multi-cable that large ship is carried bank electricity.Cable drags and connects difficulty, and working strength is big, and long low-voltage cable causes that power loss is big.
Summary of the invention
For solving the problems referred to above, this utility model provides a kind of boats and ships high voltage shore power system, adopts high pressure to go on board, namely output electrical system is AC6.6KV/60Hz or AC6KV/50Hz, it is possible to be suitable for harbour shore-based power supply, apply convenient effectively, manipulation safe ready, it is achieved boats and ships reach port period for boats and ships offer power supply.
This utility model is achieved by the following technical solution: a kind of boats and ships high voltage shore power system, it is powered for the boats and ships for stopping, including bank base section and boat-carrying part, described bank base section includes the high-voltage lead-in switch cabinet being sequentially connected in series, variable voltage variable frequency device, outlet switch cabinet and high voltage shore power junction box, described boat-carrying part includes the high voltage cable reel being sequentially connected in series, boat-carrying high voltage shore power connects power distribution cabinet and boat-carrying transformator, it is characterized in that: the variable voltage variable frequency device of described bank base section is provided with the PLC monitoring cabinet being connected with Central Control Room, isolating transformer and metering cabinet also it is in series with between variable voltage variable frequency device and high voltage shore power junction box, described boat-carrying part is also in series with boat-carrying high voltage shore power and measures protection cabinet and boat-carrying bank electric control screen.
It is provided with communication interface, this communication interface, it is possible to be the one in Ethernet, optical fiber, RS485 or Modbus communication interface between each parts of described high voltage shore power system;Described high voltage shore power system is additionally provided with alarm device and emergency switching-off button, and the two concatenates the same circuit by control line with shipboard and electric substation's primary cut-out;The bank base section of described high voltage shore power system is a bypath system being used for providing other specification power supply in parallel also, and this bypath system includes bypass cabinet, bypass transformator and bypass high voltage shore power junction box;Each high voltage shore power junction box of described high voltage shore power system is provided with high tension cable socket and fiber-optical socket;It is provided with in variable voltage variable frequency device receiving the sampling unit of the secondary output voltage sampled signal of boat-carrying transformator and the output unit of output voltage can being controlled according to described voltage sampling signal;High voltage cable reel is provided with the monitoring means of control unit and enough monitoring cable tension force, the curl cable number of turns, the system failure with take-up cable laying function manually or automatically;Boat-carrying high voltage shore power measures protection cabinet built with high-voltage complex protection device, voltage transformer, current transformer, zero sequence current mutual inductor, connects the connection power distribution cabinet of boat-carrying transformator and boat-carrying high voltage shore power.
The beneficial effects of the utility model are in that: this utility model structure achieves direct voltage and goes on board, and power cable is few, easy to connect;Adopt distinctive bypass power supply mode, 6.6kV/60Hz and the 6kV/50Hz power supply of two kinds of different sizes can be provided simultaneously, meet the demand of different size boats and ships;Shore connection box configures multiple output interfaces, can provide power supply to many boats and ships simultaneously;The centralized management of bank electricity device systems and monitoring, on ship and bank electricity data sharing on the bank, it is achieved remotely monitoring and clearing.
This utility model structure is use bank electricity instead during boats and ships reach port to provide convenience; to reducing cost, energy-saving and emission-reduction noise reduction; build green harbour and have very positive meaning, be also solve to pull in shore the Important Action of pollution problem that harbour water area brought by marine fuel oil generating.
Accompanying drawing explanation
Fig. 1 is the principle schematic of boats and ships high voltage shore power system of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, this utility model is described in detail, but is not to be construed as restriction of the present utility model.
A kind of boats and ships high voltage shore power system as shown in Figure 1, output electrical system is AC6.6KV/60Hz or AC6KV/50Hz, including bank base section and boat-carrying part,
Described bank base section includes high-voltage lead-in switch cabinet, variable voltage variable frequency device, isolating transformer, outlet switch cabinet, metering cabinet, high voltage shore power junction box and PLC monitoring cabinet, the input of described high-voltage lead-in switch cabinet electrically connects with the electrical network of electric substation of port district, wharf apron, the outfan of described high-voltage lead-in switch cabinet is sequentially connected electrically described variable voltage variable frequency device, described isolating transformer, described outlet switch cabinet, described metering cabinet and described shore connection box, and described shore connection box can electrically connect with the high voltage cable reel of described boat-carrying part;Described PLC monitoring cabinet is connected with the frequency-variable module of described variable voltage variable frequency device, for detecting the state of described variable voltage variable frequency device;
Described boat-carrying part includes described high voltage cable reel, boat-carrying high voltage shore power connects power distribution cabinet, boat-carrying high voltage shore power is measured protection cabinet, boat-carrying transformator and boat-carrying bank and is electrically accessed control panel; the outfan of described high voltage cable reel is sequentially connected with described boat-carrying high voltage shore power by power line and connects power distribution cabinet and described boat-carrying transformator; described high voltage cable reel is measured protection cabinet and is connected by control line and optical fiber with described boat-carrying high voltage shore power, and described boat-carrying high voltage shore power is measured protection cabinet and is connected with optical fiber by control line with described boat-carrying bank electric control screen.
As it is shown in figure 1, the conventional mains supply of electric substation is 10kv/50Hz, entering variable voltage variable frequency device through high-voltage lead-in switch cabinet, urban network electricity source is converted into 6.6kv/60Hz or 6kv/50Hz by variable voltage variable frequency device, through isolating transformer, the output of outlet switch cabinet.10kV/50Hz input power passes through high-voltage lead-in switch cabinet, provides power supply to variable voltage variable frequency device, exports the power supply of AC6.6kV/60Hz to ship power supply after variable voltage variable frequency sinusoidal filter.Many pulse dry rectifier transformers T1 forms the rectifier structure of many pulse waves, it is to avoid the higher hamonic wave pollution to electrical network;Variable-frequency power sources outfan, equipped with sine wave filter, makes output voltage current sinusoidal;Dry-type transformer T2 has electrical isolation effect, eliminates common-mode voltage and higher hamonic wave, reduces the effect of the impact of starting current when boats and ships heavy-duty motor directly plays.Utilize the facility such as cable duct and conveyor bridge, high tension cable is laid to wharf apron in the high voltage shore power junction box at boats and ships stern place of reaching port.The boats and ships that the reach port high potential cable termination by boat-carrying high voltage cable reel, is connected on the socket in described high voltage shore power junction box, power supply is served ship.
Described high voltage shore power junction box is furnished with cable socket, can be connected with the high potential cable termination of high voltage cable reel, high potential cable termination is also equipped with Optical fiber plug, high voltage shore power junction box is also equipped with fiber-optical socket, so that the connection of high potential cable termination and cable socket realizes the connection of power line, control line and optical fiber simultaneously.
Described variable voltage variable frequency device is able to receive that the secondary output voltage sampled signal of boat-carrying transformator, carry out real-time closed-loop to control to make boats and ships obtain constant low pressure output, the frequency-variable module of described variable voltage variable frequency device controls output voltage according to described voltage sampling signal, it is ensured that output voltage meets ship power supply requirement.
Described PLC monitoring cabinet does main website, boat-carrying high-tension measurement protection device, boat-carrying bank electric control screen, high voltage cable reel control chamber do slave station, communicate with PLC monitoring cabinet, PLC monitoring cabinet and Central Control Room communication.Employing Integrated automation controls, and individually controls the PLC of each control system, realizes on ship by optical fiber or fieldbus and the communication of shore facilities, and between equipment, data pass mutually again.The data such as the real-time working condition that on-the-spot PLC is gathered and parameter graphically, the form such as form, curve represent, observe the running status of field apparatus at PLC monitoring cabinet and Central Control Room.
Described high voltage shore power system is additionally provided with bypass cabinet, bypass transformator and bypass high voltage shore power junction box, can provide 6.6kV/60Hz and the 6kV/50Hz power supply of two kinds of different sizes simultaneously, thus meeting the demand of different size boats and ships.
Described high voltage shore power junction box and described bypass high voltage shore power junction box configure two cable sockets, provide dual power supply with the high voltage cable reel met for boats and ships.
Electromotor on boats and ships provides 380V power supply for described high voltage cable reel, utilize the control chamber of high voltage cable reel, use converter and PLC control mode, carry out drawing over to one's side the control of cable laying, keep the tensions constant of cable, it is equipped with display screen, enables users to the timing monitoring various states to system, including manual/auto, take-up/cable laying, cable stretch, the curl cable number of turns, the various faults of system etc..High voltage cable reel leading-out terminal is connected power distribution cabinet by power cable and connects with boat-carrying high voltage shore power, it is achieved introduced on ship by bank electricity;It is connected with boat-carrying high voltage shore power measurement protection cabinet with optical fiber by controlling cable, it is achieved ship passes mutually with ground data.
Described boat-carrying high voltage shore power measures protection cabinet built with high-voltage complex protection device, voltage transformer, current transformer, zero sequence current mutual inductor; connect boat-carrying transformator and be connected power distribution cabinet with boat-carrying high voltage shore power; for functions such as high voltage parameter acquisition, control, display, protections, thus effectively protecting high voltage supply loop and transformator.Described boat-carrying high voltage shore power is measured protection cabinet and is had under-voltage, mistake stream, ground connection, short circuit, default-phase protection function, when bank electricity abnormal electrical power supply, sends signal and makes primary cut-out protectiveness disjunction, it is ensured that equipment on board safety.Meanwhile, described boat-carrying high voltage shore power measures protection cabinet equipped with safety interlock, it is ensured that human users's safety.Described boat-carrying high voltage shore power is measured protection cabinet and is additionally provided with touch screen, and described touch screen is capable of and described PLC monitoring cabinet, the control chamber of high voltage cable reel, described boat-carrying bank electric control screen data cube computation.Described boat-carrying high-tension measurement protection cabinet is additionally provided with the communication interfaces such as Ethernet, optical fiber, RS485, Modbus, and therefore, foregoing optical fiber can also use the communication modes such as Ethernet, RS485, Modbus to replace.
Described boat-carrying bank electric control screen is connected with described boat-carrying transformator, and has automatically and manually two kinds of ship electricity and turn bank electricity car pattern;Described boat-carrying bank electric control screen and described boat-carrying high voltage shore power are measured protection cabinet and are carried out communication, and possess Ethernet, optical fiber, RS485, Modbus communication interface.
Under manual mode, when ship electricity turns bank electricity, switch is selected to get to ' bank electricity ' position in also car, mode switch gets to ' manually ' position, check crosspointer voltmeter, crosspointer frequency meter, then with bank piezoelectric voltage, frequency is benchmark, manual fine-tuning is at net generator voltage, frequency, make they and bank electricity close, check synchronous meter (or synchronizing lamp), synchronous meter LED lampet slowly rotates to 11 o'clock right position clockwise, close bank electric switch, it is connected to the grid, then manual adjustments electromotor reduction of speed, carry out load transfer, load transfer is complete, disjunction is at net generator contactor, transfer bank electricity to power, then electromotor is allowed to cool down, manual shut-down;During bank electricity transshipment electricity, selecting switch to get to ' ship electricity ' position in also car, other operations turn essentially identical during bank electricity with ship electricity.
Automatic mode: boat-carrying bank electric control screen is furnished with automatic synchronizing apparatus.As needed automatic paralleling, when the automatic parallel operation switchgear of electromotor Yu replacing is supporting, it may be achieved automatic paralleling.
Described high voltage shore power system has interlock, and the locking realizing ground and equipment on board by controlling cable connects, and makes emergency switching-off button concatenate the same circuit with shipboard and electric substation's primary cut-out, it is prevented that plug warm swap.Disconnect at equipotential link or do not set up in situation; cable reel sends alarm signal; bank electricity system controls and Monitoring Line fault; bank Electric plug with shutter is charged to be extracted or access failure; protection system to earth fault; in bank electricity power supply not yet offer situation, connecing chopper in boat-carrying bank electrical connection power distribution cabinet can not close or automatically disconnect in make position.When bank electricity is powered, occurring that stream, overload, Transformer Winding temperature are high, then reported to the police, bank electric screen provides classification preferentially to thread off unloading interface, is connected with the load shedding device on ship.
Protection domain of the present utility model includes but not limited to above-mentioned preferred implementation, any known substitute mode, each falls within protection domain of the present utility model.

Claims (9)

1. a boats and ships high voltage shore power system, including bank base section and boat-carrying part, described bank base section includes the high-voltage lead-in switch cabinet being sequentially connected in series, variable voltage variable frequency device, outlet switch cabinet and high voltage shore power junction box, described boat-carrying part includes the high voltage cable reel being sequentially connected in series, boat-carrying high voltage shore power connects power distribution cabinet and boat-carrying transformator, it is characterized in that: the variable voltage variable frequency device of described bank base section is provided with the PLC monitoring cabinet being connected with Central Control Room, isolating transformer and metering cabinet also it is in series with between variable voltage variable frequency device and high voltage shore power junction box, described boat-carrying part is also in series with boat-carrying high voltage shore power and measures protection cabinet and boat-carrying bank electric control screen.
2. boats and ships high voltage shore power system as claimed in claim 1, it is characterised in that: described high voltage shore power junction box is provided with high tension cable socket and fiber-optical socket.
3. boats and ships high voltage shore power system as claimed in claim 1, it is characterised in that: it is provided with in described variable voltage variable frequency device receiving the sampling unit of the secondary output voltage sampled signal of boat-carrying transformator and the output unit of output voltage can being controlled according to described voltage sampling signal.
4. boats and ships high voltage shore power system as claimed in claim 1, it is characterised in that: described bank base section is a bypath system being used for providing other specification power supply in parallel also, and this bypath system includes bypass cabinet, bypass transformator and bypass high voltage shore power junction box.
5. boats and ships high voltage shore power system as claimed in claim 1, it is characterised in that: described high voltage cable reel is provided with the monitoring means of control unit and enough monitoring cable tension force, the curl cable number of turns, the system failure with take-up cable laying function manually or automatically.
6. boats and ships high voltage shore power system as claimed in claim 1; it is characterized in that: described boat-carrying high voltage shore power measures protection cabinet built with high-voltage complex protection device, voltage transformer, current transformer, zero sequence current mutual inductor, connects the connection power distribution cabinet of boat-carrying transformator and boat-carrying high voltage shore power.
7. boats and ships high voltage shore power system as claimed in claim 1, it is characterised in that: it is provided with communication interface between each parts of described high voltage shore power system.
8. boats and ships high voltage shore power system as described in claim 7, it is characterised in that: described communication interface, is the one in Ethernet, optical fiber, RS485 or Modbus communication interface.
9. boats and ships high voltage shore power system as claimed in claim 1, it is characterised in that: described high voltage shore power system is additionally provided with alarm device and emergency switching-off button, and the two concatenates the same circuit by control line with shipboard and electric substation's primary cut-out.
CN201620068307.XU 2016-01-25 2016-01-25 Boats and ships high pressure bank electric system Active CN205377286U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106208140A (en) * 2016-08-18 2016-12-07 湖南大学 A kind of high-power two-way ship shore electric power system
CN106384953A (en) * 2016-10-24 2017-02-08 江苏耐维思通科技股份有限公司 Stably-connected shore-based power box
CN106410805A (en) * 2016-12-06 2017-02-15 国网浙江省电力公司 One-driven operational ship offshore power system and control method
CN106532624A (en) * 2016-08-22 2017-03-22 中海网络科技股份有限公司 Comprehensive protection control system of marine shore power
CN106646271A (en) * 2016-12-06 2017-05-10 国网浙江省电力公司 Test system for shore power supply
CN107394754A (en) * 2017-07-07 2017-11-24 国电南瑞科技股份有限公司 A kind of harbour bank electricity multi-stage combination interlock protection method
CN110451343A (en) * 2019-08-16 2019-11-15 江苏健龙电器有限公司 A kind of shore connection cable transmission constant tension control device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106208140A (en) * 2016-08-18 2016-12-07 湖南大学 A kind of high-power two-way ship shore electric power system
CN106532624A (en) * 2016-08-22 2017-03-22 中海网络科技股份有限公司 Comprehensive protection control system of marine shore power
CN106532624B (en) * 2016-08-22 2018-12-11 中海网络科技股份有限公司 A kind of ship shore electric comprehensive protection control system
CN106384953A (en) * 2016-10-24 2017-02-08 江苏耐维思通科技股份有限公司 Stably-connected shore-based power box
CN106410805A (en) * 2016-12-06 2017-02-15 国网浙江省电力公司 One-driven operational ship offshore power system and control method
CN106646271A (en) * 2016-12-06 2017-05-10 国网浙江省电力公司 Test system for shore power supply
CN106410805B (en) * 2016-12-06 2019-04-23 国网浙江省电力公司 A kind of one drags the shipping shore power system more run and control method
CN106646271B (en) * 2016-12-06 2020-02-14 国网浙江省电力公司 Shore power supply test system
CN107394754A (en) * 2017-07-07 2017-11-24 国电南瑞科技股份有限公司 A kind of harbour bank electricity multi-stage combination interlock protection method
CN110451343A (en) * 2019-08-16 2019-11-15 江苏健龙电器有限公司 A kind of shore connection cable transmission constant tension control device

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