CN209571828U - A kind of ship shore-based power supply system adapting to SEA LEVEL VARIATION - Google Patents
A kind of ship shore-based power supply system adapting to SEA LEVEL VARIATION Download PDFInfo
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- CN209571828U CN209571828U CN201920319131.4U CN201920319131U CN209571828U CN 209571828 U CN209571828 U CN 209571828U CN 201920319131 U CN201920319131 U CN 201920319131U CN 209571828 U CN209571828 U CN 209571828U
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Abstract
The utility model discloses a kind of ship shore-based power supply system for adapting to SEA LEVEL VARIATION, ship shore-based power supply system is arranged on landing stage, system includes: high-tension cable draw off gear, high-tension terminal case, transformer, high voltage power distributing cabinet and low-voltage distribution cabinet, one end of high-tension cable draw off gear can be connect with bank base incoming power, the other end of high-tension cable draw off gear and the high pressure enter line side of high voltage power distributing cabinet connect, and high voltage power distributing cabinet main tank becomes side and connects the transformer being arranged on this landing stage；Low-voltage distribution cabinet configures multiple electrical separations.The utility model solves the problems, such as the biggish service area dock vessels of Yangtze river basin SEA LEVEL VARIATION from taking electricity on the bank.High and low electric distribution system structure is optimized, low-voltage cable laying length is reduced, improves end power quality, reduces cable management difficulty.
Description
Technical field
The utility model discloses a kind of ship shore-based power supply connection design method for adapting to SEA LEVEL VARIATION, belongs to electric system
Power supply and distribution technical field.
Background technique
Three Gorges Dam, Ge Zhou Ba are the most important navigation hinges in the Yangtze river basin, and annual navigation is to lock service area dock vessels
Quantity is big, and the residence time is long, is polluted Yangtze river basin surrounding enviroment using energy cost height using diesel generation, is not met country
Energy-saving and emission-reduction, the requirement of Green Development.Currently, shore-based power supply technology is promoted to the harbour that the whole nation has construction condition,
Bank electricity technical conditions are mature on the whole.Up-and-coming youngster of the Yangtze river basin as bank electricity construction application region is different from general coastal, interior
The construction content of the harbours such as river bank electricity, ship service area are in dam area upstream and downstream, and SEA LEVEL VARIATION is big, and bank infrastructure is mating
It is incomplete, ship by dock barge stop, positional distance bank farther out, shore-based power supply and connection between ship and bank skill for such environment
The art country lacks correlative study, needs to carry out the harbour bank electricity technical research for adapting to Yangtze river basin SEA LEVEL VARIATION environment.
Lack in addition, stopping service area shore-based power supply power supply along the Changjiang river, if construction uses 400V voltage class, cable laying
It is too long, it is easy to bring power quality problem for the service area bad for power supply environment itself.And power supply capacity is needed
Big ship, such as cruise are asked, for single maximum power requirement up to 500kW, low-voltage cable line footpath is big, can exceed that 185mm2,
Cable weight weight, connection between ship and bank heavy workload, time are long, will lead to ship side and lose to the wish for using bank electricity, need opposite bank
The connection portability technology scheme of electric system is studied.
Finally, bank electricity is not only the ship offer bank electricity that service area is stopped, while life also is provided for service area staff
Electricity is applied flexibly, it is stringent to the security requirement for using bank electricity.Since bank base power supply and distribution landing stage are respectively at land, position waterborne
Set, therefore there are potential differences between entire bank electricity system distinct device, when there is electric leakage, phase line grounding failure, personal safety by
To threat, the equipotential link technology of bank electricity system need to be studied.Also, cable automatic managing device longtime running is easy to happen
Failure, broken string will affect the continuity of power supply for power supply phase line, but if ground wire breaks, once electric shock accidents occurs can
Personal safety can be influenced whether, for using the secure connection technology of bank electricity to need to carry out relevant research.
Utility model content
The purpose of utility model of the utility model is to solve the problems, such as at least one aspect of the above prior art, provides one
Kind adapts to the ship shore-based power supply system of SEA LEVEL VARIATION.
To realize the above-mentioned technical purpose, the utility model uses following technical scheme:
A kind of ship shore-based power supply system adapting to SEA LEVEL VARIATION, the ship shore-based power supply system are arranged on landing stage,
The system comprises: high-tension cable draw off gear, high-tension terminal case, transformer, high voltage power distributing cabinet and low-voltage distribution cabinet, the height
One end of voltage cable draw off gear can be connect with bank base incoming power, the other end and high voltage power distributing cabinet of high-tension cable draw off gear
The connection of high pressure enter line side, high voltage power distributing cabinet main tank becomes side and connects the transformer that is arranged on this landing stage；
The low-voltage distribution cabinet configures multiple electrical separations, including configuration low pressure bank electricity stops for ship and uses electric power, matches
It sets mains lighting supply and provides illuminating power for landing stage, configure operation power as high-tension cable draw off gear and the power electric of motor is provided
Source.
In above technical scheme, bank base incoming power uses 10kV inlet wire, using 10kV/0.4kV transformer by voltage
It is converted into low-voltage power supply.
Further, the signal output end of the high-tension cable draw off gear on landing stage and bank base power-supply controller of electric connect
It connects, for the signal of high-tension cable draw off gear to be reached bank base power-supply controller of electric.
Still further, reference power supply controller connection bank base incoming power side switch, for according to the high-voltage electricity received
The signal control bank base incoming power side of cable draw off gear switches on-off, the signal output end of the high-tension cable draw off gear
The signal of output includes the temperature signal of cable ring number and high-tension cable draw off gear.
Further, the system also includes, when arrange ship shore-based power supply system landing stage quantity be greater than one when,
In any one landing stage as main distribution landing stage, other landing stages are used as from the high-tension cable on distribution landing stage, main distribution landing stage and receive
The one end for putting device is connect with bank base incoming power, on the other end of the high-tension cable draw off gear and the main distribution landing stage
High voltage power distributing cabinet high pressure enter line side connection, while main distribution landing stage by high voltage power distributing cabinet from phase transformation outgoing line side and it is other from
High-tension terminal case connection on distribution landing stage.
Further, the connection main distribution landing stage and high voltage power distributing cabinet from distribution landing stage are being connected from phase transformation outgoing line side
Safety return circuit is set between high-tension terminal case, can be powered off by danger button for breaking down.
Further, arrange ship shore-based power supply system landing stage by its setting low-voltage distribution cabinet outgoing line side with it is other
The Low-voltage socket case of ship is connected as ship and provides distribution bank electricity.
Further, safety return circuit is set between the low-voltage distribution cabinet outgoing line side and Low-voltage socket case on connection landing stage, uses
It can be powered off by danger button in breaking down.
Further, it individually pulls out one from bank base incoming power to connect with the ground wire separated that is connected with hull, institute possession
Line uses twin-core earth cable.
Still further, further including current acquisition module, real-time current detection is carried out for being grounded.
The utility model has the beneficial effects that:
1, the utility model solves the biggish service area dock vessels of Yangtze river basin SEA LEVEL VARIATION from the difficulty for taking electricity on the bank
Topic.High and low electric distribution system structure is optimized, low-voltage cable laying length is reduced, improves end power quality,
Reduce cable management difficulty；
2, the utility model can be connected by the high-tension terminal case being arranged on bank electricity distribution landing stage and other bank electricity distribution landing stages
Offer bank electricity service is provided and improves the distribution ability of system the needs of meeting a plurality of ship while stopping using bank electricity；
3, the utility model simplifies ship-to-shore equipotential link technical solution, eliminates possible security risk, ensure that
The connection of bank electricity system uses safe and reliable；
4, shore-based power supply system provided by the utility model provides multiple protective loops, improve system safety and
Reliability.
Detailed description of the invention
Fig. 1 is the utility model specific embodiment bank electricity system layout schematic diagram；
Fig. 2 is the schematic diagram of the practical SEA LEVEL VARIATION of the utility model specific embodiment；
Fig. 3 is the utility model specific embodiment bank electricity distribution landing stage electrical design block diagram；
Fig. 4 is the utility model specific embodiment ship-to-shore equipotential link and its detection schematic diagram,
Wherein Fig. 4 (a) is embodiment ground line individual wired connection schematic diagram, and Fig. 4 (b) is embodiment ground connection real-time detection
System schematic；
Fig. 5 is the utility model specific embodiment bank electricity system electrical equipment correlation protection schematic diagram.
Specific embodiment
With reference to the accompanying drawings, and in conjunction with specific embodiments the utility model is described in further detail.
Embodiment 1:
Present embodiments provide a kind of ship shore-based power supply system for adapting to SEA LEVEL VARIATION, the ship shore-based power supply system
It is arranged on landing stage, the system comprises: high-tension cable draw off gear, high-tension terminal case, transformer, high voltage power distributing cabinet and low pressure
One end of power distribution cabinet, the high-tension cable draw off gear can be connect with bank base incoming power, the height of the other end and high voltage power distributing cabinet
It is pressed into line side connection, high voltage power distributing cabinet main tank becomes side and connects the transformer being arranged on this landing stage.
When the landing stage quantity for arranging ship shore-based power supply system is greater than one, wherein any one landing stage is as main distribution
Landing stage, other landing stages are used as one end and bank from the high-tension cable draw off gear on distribution landing stage (see attached drawing 1), main distribution landing stage
The connection of base incoming power, the height of the other end of the high-tension cable draw off gear and the high voltage power distributing cabinet on the main distribution landing stage
It is pressed into line side connection, while main distribution landing stage passes through high voltage power distributing cabinet from phase transformation outgoing line side and other high pressures from distribution landing stage
Socket box connection.See the main bank electricity distribution landing stage such as Fig. 1, cable from main bank electricity distribution landing stage (see Fig. 1) inner perforated cabling and
All electrical equipments are fixed on bank electricity distribution landing stage.
Multiple electrical separations are configured in the low-voltage distribution cabinet, including configuration low pressure bank electricity stops for ship and uses electric power,
Configuration mains lighting supply provides illuminating power for landing stage, configures operation power as high-tension cable draw off gear and provides the power electric of motor
Source.
Preferably, bank base incoming power uses 10kV inlet wire in the present embodiment, will be electric using 10kV/0.4kV transformer
Pressure is converted into low-voltage power supply.Due to the influence of service area SEA LEVEL VARIATION environmental factor, the layout of bank electricity system is compared to general
Harbour has very big otherness.As shown in Figure 1, providing 10kV outlet from bank base incoming power, spread by service area slope
If connecting with bank electricity distribution landing stage in bank electricity power supply and distribution facility, that is, figure, bank base incoming power is arranged on the coast, power supply and distribution facility cloth
It sets on the bank electricity distribution landing stage of water side, to constitute water, the united bank electricity system in land two sides.Shippping traffic rests in dock barge
Side is powered by bank electricity system for it.As shown in Fig. 2, requirement of the bank electricity distribution landing stage with Various Seasonal dam management and running, water
Face height, stop position are different, and the difference in height of the diagram water surface 1 and the water surface 2 is H, and the horizontal distance on distribution landing stage is W, according to
Field research consulting obtains, and the water surface elevation difference H maximum of Yangtze river basin Three Gorges dam zone Various Seasonal is up to 30 meters, horizontal distance W
It is maximum 130 meters reachable, it is seen that the value variation range of H and W is big, and the utility model can using the design scheme on bank electricity distribution landing stage
The environment of SEA LEVEL VARIATION is well adapted to, provides bank electricity service at any time for dock vessels.
Ship shore-based power supply system provided by the utility model makes connection between ship and bank system can adapt to the change of service area water level
Change environment, SEA LEVEL VARIATION situation is tracked using auto retractable appts. of cable, automatic management is carried out to cable；The suitable electricity of selection
Grade is pressed, low-voltage cable laying length is reduced, avoids bringing power quality problem；In order to ensure safe handling bank electricity, by cable
Phase line and ground line distinguish management, it is ensured that the equipotential line between shore-based power supply equipment and landing stage shell is reliably connected.
Embodiment 2:
The present embodiment is, as shown in figure 3, electrical equipment is mounted on distribution landing stage, to be somebody's turn to do on the basis of above embodiments
Landing stage arranges the ship shore-based power supply system provided by the utility model for adapting to SEA LEVEL VARIATION, while the peace of mating relevant device
The customization design that dress, connection carry out.Bank electricity distribution landing stage (rests in harbour etc. close to dock barge, and with dock barge
The ship of distribution service is provided to shore-based power supply system) position fixes, and with the variation of water level, cable reel installation can pass through
Pulling force sensing apparatus judges the fluctuation of water level, i.e., is precipitation position when pulling force increases to a certain setting value F1, and payout is drawn
It is position of rising when power is less than setting value F2, receives cable.In different bank electricity systems the numerical value of F1, F2 can according to cable,
The type selecting of winding apparatus determines.Cable is connect by high voltage power distribution side with transformer equipment, high-tension terminal case, by voltage transformation
Low-pressure line-outgoing provide bank electricity service for dock vessels, i.e. the landing stage of arrangement ship shore-based power supply system passes through the low pressure of its setting
Low-voltage socket case on power distribution cabinet outgoing line side and dock barge is connected as ship and provides bank electricity.The height being arranged on bank electricity distribution landing stage
Pressure socket box can be connected as the power supply of other ships in other bank electricity distribution landing stages (being used as from distribution landing stage) with same service area.
When service area water level is got higher, being dock barge first is adjusted to high-order around along slope by steel wire coil, bank
Electric distribution landing stage follows dock barge to be adjusted accordingly, i.e., pulling force sensing apparatus detects that cable stress is reduced to setting
Value carries out receiving cable operation.On the contrary, then carrying out payout operation.When service area has the stop of a plurality of ship, pass through high pressure
Socket box is connect with other bank electricity distribution landing stages provides bank electricity service, the needs of meeting a plurality of ship while stopping using bank electricity.
The utility model proposes the power supply mode on landing stage on bank base 10kV, compared to the mode for directlying adopt low-voltage distribution,
The bank electricity system uses high pressure inlet wire, converts voltage to low-voltage power supply by transformer, has two apparent advantages, first is that
Low-voltage cable is too long to will cause user side low-voltage problem, because the ship that Yangtze river basin service area is stopped compares apart from bank
Far, in addition distribution cable length on the bank, so that end power supply quality is difficult to be guaranteed.It is replaced on the bank using high-tension cable to wholesale
The low-pressure section of ship can guarantee that the electric energy of low-voltage cable transmission reaches the requirement of customer power supply standard；Second is that low tension cable
Diameter is big, is managed difficulty using cable reel installation, and not only the manufacture of reel ontology can require bigger with the increase of line footpath, accounts for
It is more with space, when carrying out folding and unfolding, cable be self-possessed so that bear pulling force it is big, cause for a long time connection loosen, cable sheath mill
Damage, or even draw bad interface arrangement.Using high-tension cable, line footpath, weight all can be much smaller, convenient for management, largely improve
The reliability of cable connection.
Embodiment 3:
The convenience of connection between ship and bank is improved at general harbour using auto retractable appts. of cable, which is mounted on land,
Power supply system uses IT earthing mode, and entire land side bank electricity system forms equipotential link.But adapt to the design side of SEA LEVEL VARIATION
Case needs for cable reel installation to be mounted on landing stage, if connected using IT earthing mode using triple line, landing stage power supply and distribution
Equipment and bank base incoming power can not form equipotential link, once electric leakage accident occurs, personal safety is on the hazard.Using
" triple line+ground wire " quadded cable connection type, is managed by automatic retraction device, due to carbon brush, slip ring these
Connecting component, longtime running are likely to result in breakpoint, cannot get the approval of most of proprietors.
On the basis of above embodiments, ship shore-based power supply system provided in this embodiment distinguishes ground wire and phase line
Management, individually pulls out a ground wire from bank base incoming power and connect with hull, so that the electricity such as bank electricity system water, land two parts
Position connection, specifically, referring to the equipotential link between bank electricity internal system bank base power supply and distribution landing stage waterborne.According to
Automatic retraction device Jiang Shui, the connection phase line of land two sides, ground wire are managed collectively, since ground wire passes through draw off gear, connection
Property will receive the influence of carbon brush, slip ring contact performance, longtime running is easy to cause the obstructed problem that connects, and cannot get recognizing for owner
Together.
Earth cable is the important equipment for protecting personal safety, and when connection between ship and bank will guarantee that ground line is correct and good connect
Ground.As shown in Fig. 4 (a), it is connect using an independent ground wire with hull, former 10kV threephase cable is connected to by cable drum
Landing stage.Which can individually supervise earth cable, and be directly connected to hull, set without cable drum
It is standby, do not have to consider the possible security risk of cable drum, it is ensured that ground wire normally connects.And unit cable line footpath is small, weight
Amount is light, convenient for management.
In addition, according to bank electricity service condition, landing stage equipment can float up and down with SEA LEVEL VARIATION, when water surface impact is larger
Hull can constantly rock, and be easy to cause the problems such as cable friction is damaged, excessive damage of shaking broken string, pulling force, therefore using bank
It to be checked connecting wires before electricity.As shown in Fig. 4 (b), it is preferable that ground connection real-time detecting system can be added, connect using twin-core
The circuit of ground cable, impressed current source earth wire is detected and is shown in real time, when broken string, leak current fault occurs in circuit
When, when loop current is zero or is less than setting electric current, power-off maintenance work should be carried out immediately.
The utility model is distinguished with phase line and is managed, avoided carbon brush in automatic retraction device, cunning by the way of individual wired
The possible connecting fault of ring component, it is ensured that ship-to-shore equipotential line is reliably connected, and is shown and be grounded by ground detecting system
The real-time connection status of line guarantees the personal safety of staff on landing stage, guarantees the Electrical Safety of underwater positioning life personnel.
Embodiment 4: on the basis of above embodiments, the ship shore-based power supply system that this specific embodiment provides, including
Correlation protection circuit (see Fig. 5), specific as follows:
First is that the protection between bank base power supply and bank electricity distribution landing stage, i.e., between cable reel installation and bank base incoming power
Connection, i.e., the signal output end of the high-tension cable draw off gear on landing stage are connect with bank base power-supply controller of electric, are used for high-voltage electricity
The signal of cable draw off gear reaches bank base power-supply controller of electric.Reference power supply controller connects bank base incoming power side switch, is used for root
It is switched on-off according to the signal control bank base incoming power side of the high-tension cable draw off gear received, high-tension cable draw off gear
Signal output end output signal include cable ring number and high-tension cable draw off gear temperature signal.
When cable reel installation over-discharge, i.e., when cable ring number is less than setting value on device, bank base incoming power side is received
Put device over-discharge information can the switch is automatically turned off, prevent cable machinery external force from drawing bad bring electric shock accidents；Work as twisted and released of the cable
When unit temp is excessively high, bank base incoming power side receive draw off gear excess temperature information can the switch is automatically turned off, prevent cable from setting
It is standby to burn out；
Second is that between bank electricity landing stage and bank electricity landing stage, i.e. the high-voltage board on main bank electricity distribution landing stage is from phase transformation outgoing line side and other
Correlation protection between the high-tension terminal case on distribution landing stage, when high-tension terminal case carries out patching operations, high-voltage side outlet wire
Cabinet is not charged, and safety return circuit is arranged between high-voltage board and high-tension terminal case, and failure can be powered off by danger button.
Third is that (resting in harbour waits shore-based power supply system to provide the ship of distribution service for bank electricity landing stage and dock barge
Oceangoing ship) between, i.e., the correlation protection between Low-voltage socket case on low-voltage cabinet outgoing line side and dock barge, when Low-voltage socket case carries out
When patching operations, low-voltage side outlet cabinet is not charged, and safety return circuit is arranged between low-voltage cabinet and Low-voltage socket case, breaks down
It can be powered off by danger button.
Although the utility model has been described by way of example and in terms of the preferred embodiments, embodiment is not for limiting the utility model
's.In the spirit and scope for not departing from the utility model, it is practical new to also belong to this for any equivalent change or retouch done
The protection scope of type.Therefore the protection scope of the utility model should be mark with the content that claims hereof is defined
It is quasi-.
Claims (10)
1. a kind of ship shore-based power supply system for adapting to SEA LEVEL VARIATION, which is characterized in that the ship shore-based power supply system arrangement
On landing stage, the system comprises: high-tension cable draw off gear, high-tension terminal case, transformer, high voltage power distributing cabinet and low-voltage distribution
One end of cabinet, the high-tension cable draw off gear can be connect with bank base incoming power, the other end of high-tension cable draw off gear with
The high pressure enter line side of high voltage power distributing cabinet connects, and high voltage power distributing cabinet main tank becomes side and connects the transformer being arranged on this landing stage；
The low-voltage distribution cabinet configures multiple electrical separations, including configuration low pressure bank electricity stops for ship and uses electric power, and configuration is shone
Bright power supply provides illuminating power for landing stage, configures operation power as high-tension cable draw off gear and provides the electrical source of power of motor.
2. ship shore-based power supply system according to claim 1, which is characterized in that bank base incoming power using 10kV into
Line converts voltage to low-voltage power supply using 10kV/0.4kV transformer.
3. ship shore-based power supply system according to claim 1, which is characterized in that the high-tension cable draw off gear on landing stage
Signal output end connect with bank base power-supply controller of electric, for by the signal of high-tension cable draw off gear reach bank base power supply control
Device.
4. ship shore-based power supply system according to claim 3, which is characterized in that bank base power-supply controller of electric connect bank base into
Line source-side switches switch logical for the signal control bank base incoming power side according to the high-tension cable draw off gear received
Disconnected, the signal of the signal output end output of the high-tension cable draw off gear includes cable ring number and high-tension cable draw off gear
Temperature signal.
5. ship shore-based power supply system according to claim 1, which is characterized in that the system also includes when arrangement ship
When the landing stage quantity of oceangoing ship shore-based power supply system is greater than one, wherein any one landing stage is made as main distribution landing stage, other landing stages
To be connect from one end of the high-tension cable draw off gear on distribution landing stage, main distribution landing stage with bank base incoming power, the high pressure
The other end of cable reel installation is connect with the high pressure enter line side of the high voltage power distributing cabinet on the main distribution landing stage, while main distribution
Landing stage is connect from phase transformation outgoing line side with other high-tension terminal casees from distribution landing stage by high voltage power distributing cabinet.
6. ship shore-based power supply system according to claim 5, which is characterized in that connecting the connection main distribution landing stage
And safety return circuit is arranged between phase transformation outgoing line side and high-tension terminal case in the high voltage power distributing cabinet from distribution landing stage, for breaking down
It can be powered off by danger button.
7. ship shore-based power supply system according to claim 1, which is characterized in that the wholesale of arrangement ship shore-based power supply system
The Low-voltage socket case that ship passes through on the low-voltage distribution cabinet outgoing line side and dock barge being arranged thereon is connected as ship and provides distribution bank
Electricity.
8. ship shore-based power supply system according to claim 7, which is characterized in that the low-voltage distribution cabinet on connection landing stage goes out
Safety return circuit is set between line side and the Low-voltage socket case of dock barge, can be powered off by danger button for breaking down.
9. ship shore-based power supply system according to claim 1, which is characterized in that individually pull out one from bank base incoming power
Root is connect with the ground wire separated that is connected with hull, and affiliated ground wire uses twin-core earth cable.
10. ship shore-based power supply system according to claim 9, which is characterized in that further include current acquisition module, be used for
Ground line carries out real-time current detection.
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| CN201920319131.4U CN209571828U (en) | 2019-03-13 | 2019-03-13 | A kind of ship shore-based power supply system adapting to SEA LEVEL VARIATION |
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| CN201920319131.4U CN209571828U (en) | 2019-03-13 | 2019-03-13 | A kind of ship shore-based power supply system adapting to SEA LEVEL VARIATION |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736993A (en) * | 2020-12-29 | 2021-04-30 | 卧龙电气集团辽宁荣信电气传动有限公司 | Distributed series power supply method for shore power system |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736993A (en) * | 2020-12-29 | 2021-04-30 | 卧龙电气集团辽宁荣信电气传动有限公司 | Distributed series power supply method for shore power system |
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