CN109742835A - A kind of ship power supply unit and ship charging system - Google Patents
A kind of ship power supply unit and ship charging system Download PDFInfo
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- CN109742835A CN109742835A CN201910197178.2A CN201910197178A CN109742835A CN 109742835 A CN109742835 A CN 109742835A CN 201910197178 A CN201910197178 A CN 201910197178A CN 109742835 A CN109742835 A CN 109742835A
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- 230000002452 interceptive effect Effects 0.000 description 8
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- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
This application provides a kind of ship power supply unit and ship charging system, which includes: rectification unit, energy-storage units, power converter and DC bus；Rectification unit is transmitted to DC bus after converting alternating current to direct current for obtaining alternating current from power grid；Energy-storage units, for obtaining electricity from DC bus, and the electricity that will acquire is stored when the current voltage value for detecting DC bus is greater than the first setting voltage value；And for the electricity of storage being input to DC bus, so that the voltage value of DC bus maintains set interval when detecting the current voltage value of DC bus less than the second setting voltage value；Power converter, for when receive treat charging ship be powered power supply instruction when, electricity is obtained from DC bus, and the electricity that will acquire is exported.The application improves the charge efficiency of ship.
Description
Technical field
This application involves ship charging technique fields, in particular to a kind of ship power supply unit and ship Charging
System.
Background technique
Electric ship has energy efficiency height, zero-emission, noiseless as a kind of novel ocean or river means of transport
The advantages that, it is applied in inland river and offshore waters at present, because electric ship mainly provides electricity by battery, no
Be suitble to long range voyage, but go sightseeing in municipal water, inland river or coastal waters ferry etc. need more flight numbers daily, short-legged answer
With in scene, electric ship is widely used by its advantage.
There are two types of charging modes for existing electric ship, and one is need electric ship to carry enough batteries to support
The long-time of multiple segments is navigated by water, and this mode causes ship weight to increase because electric ship needs to carry a large amount of battery,
And then the problem of leading to vessel motion low efficiency；To improve such case, propose by building high-power charging station, benefit in harbour
With the time of passenger carries out short time high-power charging to electric ship up and down between every two segment, so that ship is quick
Charging, can satisfy next segment navigation institute's electricity demand, such case is when ship needs to charge, since electric ship is fast
When speed charging, the electricity needed in a short time is big, and the power grid that will lead to high-power charging station connection can not provide required electricity
Amount, causes the problem that charge efficiency is low.
Summary of the invention
In view of this, the application's is designed to provide a kind of ship power supply unit and ship charging system, to improve ship
Oceangoing ship charge efficiency.
In a first aspect, the embodiment of the present application provides a kind of ship power supply unit, comprising: rectification unit, energy-storage units, electricity
Source current transformer and DC bus；
Described rectification unit one end is connect with power grid, and the other end is connect with the DC bus, the energy-storage units and institute
DC bus connection is stated, the power converter is connect with the DC bus；
The rectification unit transmits after the alternating current is converted to direct current for obtaining alternating current from the power grid
To the DC bus；
The energy-storage units, for being greater than the first setting voltage value when the current voltage value for detecting the DC bus
When, electricity is obtained from the DC bus, and the electricity that will acquire is stored；And the direct current is detected for working as
When the current voltage value of bus is less than the second setting voltage value, the electricity of storage is input to the DC bus；
The power converter, for when receive treat power supply instruction that charging ship is powered when, from described straight
Electricity is obtained in stream bus, and the electricity that will acquire is exported.
In some embodiments, the energy-storage units include energy accumulation current converter and energy storage device, the energy accumulation current converter
Input terminal connect with the DC bus, the output end of the energy accumulation current converter is connect with the energy storage device；
The energy accumulation current converter, for being greater than the first setting electricity when the current voltage value for detecting the DC bus
When pressure value, electricity is obtained from the DC bus, the energy storage device is input to and is stored；And it is described straight when detecting
When flowing the current voltage value of bus less than the second setting voltage value, electricity is obtained from the energy storage device and is input to the direct current
Bus.
In some embodiments, the power converter, specifically for when receive treat charging ship be powered
Power supply instruction when, the corresponding voltage value of the electricity that will acquire is adjusted to the load voltage value of the ship to be charged, be based on institute
Load voltage value is stated to be powered the ship to be charged.
In some embodiments, further include control unit, the control unit respectively with the rectification unit and energy storage
Unit connection；
The control unit, for detecting the remaining capacity of energy-storage units storage, when determining that the remaining capacity is small
In first setting power threshold when, Xiang Suoshu energy-storage units send be used to indicate forbid export electricity signal, and to it is described to
The ship that charges sends the indication signal for stopping charging or limitation charge power；When determining that remaining capacity reaches the second setting electricity
When threshold value, Xiang Suoshu rectification unit sends the signal for being used to indicate and stopping taking electricity；
The energy-storage units, for when receive it is described be used to indicate the signal for forbidding exporting electricity after, stopping will storage
Electricity be input to the DC bus；
The rectification unit, for when receive it is described stopping take electric signal after, stop from the power grid obtain alternating current.
In some embodiments, the control unit is also used to receive the externally input first setting voltage
When value and the second setting voltage value, it is sent to the energy-storage units and is stored.
In some embodiments, the control unit is also connect with the power converter；
The control unit is also used to after determining that the power converter is electrically connected with the ship completion to be charged,
The power supply instruction is sent to the power converter.
In some embodiments, the ship power supply unit further includes powering shelf and energy storage cabinet, electric current input line and electricity
Flow output line；
The rectification unit, the energy accumulation current converter and the power converter are set in the powering shelf, the storage
Energy equipment is set in the energy storage cabinet；
Powering shelf setting live wire input port, electric wire delivery outlet and the first electric current mouth, the energy storage cabinet are provided with the
Two electric current mouths；
After the electric current input line is connect with the rectification unit, passes through the electric wire input port and connect with the power grid；
After the current output line is connect with the power converter, passes through the electric wire delivery outlet and connect with the ship to be charged；
After the output end of the energy accumulation current converter passes through the first electric current mouth and the second electric current mouth, connect with the energy storage device
It connects.
It in some embodiments, further include transformer, the input terminal of the transformer is connect with the power grid, the change
The output end of depressor is connect by the electric current input line with the rectification unit；
The transformer, it is described to being transmitted to after alternating current progress transformation for obtaining alternating current from the power grid
Rectification unit.
It in some embodiments, further include harbour junction box, it is defeated that the harbour junction box is provided at least one electric wire
Enter end and at least one electric wire output end；
The current output line is connect with the electric wire input terminal；
The electric wire output end is used to connect the cable plug of ship to be charged.
It in some embodiments, further include interactive display, the interactive display is set to the outer of the powering shelf
On shell；
The interactive display, for showing power supply state information.
In some embodiments, the ship power supply unit further includes multiple groups protection circuit, and the multiple groups protect circuit
Circuit is protected including at least rectification unit protection circuit, energy-storage units protection circuit and power converter；
The rectification unit protects circuit, and one end is connected with the rectification unit, and the other end is connected with the DC bus；
The energy-storage units protect circuit, and one end is connected with the energy-storage units, and the other end is connected with the DC bus；
The power converter protects circuit, and one end is connected with power converter, and the other end is connected with the DC bus.
In some embodiments, the energy-storage units include at least two groups.
In some embodiments, the electric wire output end includes the output port of a variety of different models.
Second aspect, the embodiment of the present application provide a kind of ship charging system, including background server, ship to be charged
And ship power supply unit as described in relation to the first aspect；
The ship power supply unit, for from power grid obtain alternating current, and the alternating current that will acquire be converted to direct current into
Row storage, receive treat charging ship be powered power supply instruction when, the ship to be charged is powered, and
For the power supply situation information being powered to the ship to be charged to be fed back to the background server；
The background server, for receiving and showing the power supply situation information of each ship power supply unit feedback；
The ship to be charged is charged after the completion of determining charging circuit connection based on the direct current received.
Ship power supply unit and ship charging system provided by the embodiments of the present application, the ship power supply unit include: rectification
Unit, energy-storage units, power converter and DC bus；Rectification unit one end is connect with power grid, and the other end and DC bus connect
It connects, energy-storage units are connect with DC bus, and power converter is connect with DC bus；Rectification unit is handed over for obtaining from power grid
Galvanic electricity is transmitted to DC bus after converting alternating current to direct current；Energy-storage units detect the current of DC bus for working as
When voltage value is greater than the first setting voltage value, electricity is obtained from DC bus, and the electricity that will acquire is stored；And
For when detecting the current voltage value of DC bus less than the second setting voltage value, the electricity of storage to be input to direct current mother
Line, so that the voltage value of DC bus maintains set interval；Power converter treats charging ship progress for working as to receive
When the power supply instruction of power supply, electricity is obtained from DC bus, and the electricity that will acquire is exported.
As it can be seen that the embodiment of the present application be not directly acquire power grid electricity treat charging ship be powered, but from
After power grid gets electricity, by charge transport into DC bus, the voltage that DC bus is controlled by energy-storage units is kept
In certain section, in this way, the electricity in the electricity and power grid of energy-storage units can be passed through when ship to be charged needs to charge
Ship is powered together, ship is not on the one hand needed in this way and is equipped with a large amount of battery, reduce the construction cost of ship, and
The operational efficiency of ship is improved, on the other hand, when ship quick charge, after causing DC bus-bar voltage to decline, Ke Yitong
The voltage in DC bus is adjusted after the energy-storage units for storing electricity in advance, does not need additionally to consume the electricity in power grid
Amount, therefore reduce the capacitance requirement to power grid.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the structural schematic diagram of the first ship power supply unit provided by the embodiment of the present application；
Fig. 2 shows the structural schematic diagrams of second of ship power supply unit provided by the embodiment of the present application；
Fig. 3 shows the structural schematic diagram of the third ship power supply unit provided by the embodiment of the present application；
Fig. 4 shows a kind of structural schematic diagram of powering shelf and energy storage cabinet provided by the embodiment of the present application；
Fig. 5 shows the structural schematic diagram of the 4th kind of ship power supply unit provided by the embodiment of the present application；
Fig. 6 shows the structural schematic diagram of the 5th kind of ship power supply unit provided by the embodiment of the present application；
Fig. 7 shows the structural schematic diagram of the 6th kind of ship power supply unit provided by the embodiment of the present application；
Fig. 8 shows a kind of circuit configuration schematic diagram of ship power supply unit provided by the embodiment of the present application；
Fig. 9 shows a kind of ship charging system structural schematic diagram provided by the embodiment of the present application；
Figure 10 shows a kind of charging equipment structural schematic diagram of ship provided by the embodiment of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it should be understood that attached drawing in the application
The purpose of illustration and description is only played, is not used to limit the protection scope of the application.In addition, it will be appreciated that schematical attached
Figure does not press scale.Process used herein shows the behaviour realized according to some embodiments of the present application
Make.It should be understood that the operation of flow chart can be realized out of order, the step of context relation of logic can not inverted suitable
Sequence is implemented simultaneously.In addition, those skilled in the art are under the guide of teachings herein, can be added to flow chart one or
Other multiple operations, can also remove one or more operations from flow chart.
In addition, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Usually exist
The component of the embodiment of the present application described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed the application's to the detailed description of the embodiments herein provided in the accompanying drawings below
Range, but it is merely representative of the selected embodiment of the application.Based on embodiments herein, those skilled in the art are not being done
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
Embodiment 1
The embodiment of the present application 1 provides a kind of ship power supply unit 100, as shown in Figure 1, comprising: rectification unit 101, storage
It can unit 102, power converter 103 and DC bus 104.
101 one end of rectification unit is connect with power grid, and the other end is connect with DC bus 104, and energy-storage units 102 and direct current are female
Line 104 connects, and power converter 103 is connect with DC bus 104.
Wherein, rectification unit can be rectifier, specially utilize power electric component, such as diode, thyristor
Or insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT), the exchange-of manufacture are straight
Flow converter plant.
Rectification unit 101 is transmitted to DC bus after converting alternating current to direct current for obtaining alternating current from power grid
104。
Here, power grid can refer to the power transmission line of national grid, can export the alternating current of setting voltage value, power grid here
Including that can be high-voltage fence, it be also possible to low voltage electric network.
Rectification unit can use power control mode, take electricity from power grid, such as can be all electronic according to a harbour
The total power consumption that ship is runed daily takes electricity from power grid with stable power in one day, when this mode is not in concentration
Between take electricity, requirement to electrical network capacity is minimum or rectification unit can be taken at network load lower night with relatively high power
Then electricity takes electricity on network load higher daytime with smaller power, or carry out taking electricity according to interval time, in this way to power grid
The requirement of capacity is also smaller.
Energy-storage units 102, for when detect DC bus 104 current voltage value be greater than first setting voltage value when,
Electricity is obtained from DC bus 104, and the electricity that will acquire is stored；And DC bus 104 is detected for working as
Current voltage value less than second setting voltage value when, the electricity of storage is input to DC bus 104.
Wherein, above-mentioned first setting voltage value should be greater than or equal to the second setting voltage value, such as the first setting voltage
Value is 800V, and second sets voltage value as 750V, i.e., energy-storage units can be greater than in the current voltage value for detecting DC bus
When 800V, illustrate the ship to charge at this time not over DC bus, electricity can be obtained from DC bus at this time, and
The electricity that will acquire is stored, and when the current voltage value for detecting DC bus is less than 750V, illustrate there is ship at this time
Quick charge is carried out by DC bus, in order to enable charging can be completed in a short time for ship, it can be by the electricity of storage
It is input to DC bus, so that the voltage value in DC bus increases, in this way by the above-mentioned means, enabling to DC bus
In voltage value maintain stable section, can satisfy the demand of ship quick charge in this way.
Power converter 103, for when receive treat charging ship be powered power supply instruction when, from DC bus
Electricity is obtained in 104, and the electricity that will acquire is exported.
Here power converter can be to utilize power electric component, such as IGBT, and the DC-DC unsteady flow of manufacture fills
It sets, is also possible to a kind of DC-AC converter plant, it is corresponding here when power converter is DC-DC converter plant
The electric current that ship power supply unit provides is direct current, and when power converter is DC-AC converter plant, corresponding ship is supplied
The electric current that electric equipment provides is alternating current.
Specifically, power converter, specifically for when receive treat the power supply that is powered of charging ship and indicate when, will
The corresponding voltage value of the electricity of acquisition is adjusted to the load voltage value and frequency values of ship to be charged, is treated based on load voltage value
Charging ship is powered.
For example, power converter is treated in reception to be filled when the supply voltage that ship to be charged needs is the direct current of 750V
When the power supply instruction that electric ship is powered, the corresponding voltage value of the electricity obtained from DC bus can be adjusted to 750V
After export；If the supply voltage for the ship needs that charge is the alternating current of 380V, power converter treats Chargeable ship in reception
When the power supply instruction that oceangoing ship is powered, the corresponding voltage of the electricity obtained from DC bus can be adjusted to alternating voltage,
And for voltage value be adjusted to 380V after export.
Specifically, in order to be powered simultaneously to multiple ships to be charged, the power supply unsteady flow in the embodiment of the present application
Device may include multiple.
In one embodiment, as shown in Fig. 2, energy-storage units 102 here include energy accumulation current converter 1021 and energy storage
The input terminal of equipment 1022, energy accumulation current converter 1021 is connect with DC bus 104, the output end of energy accumulation current converter 1021 and energy storage
Equipment 1022 connects.
Energy accumulation current converter 1021, for being greater than the first setting voltage value when the current voltage value for detecting DC bus 104
When, electricity is obtained from DC bus, is input to energy storage device and is stored；And when the current voltage for detecting DC bus
When value is less than the second setting voltage value, electricity is obtained from energy storage device and is input to DC bus.
Here energy accumulation current converter can be to utilize power electric component, such as IGBT, and the DC-DC unsteady flow of manufacture fills
It sets, such as the DC-DC current transformer ACS880-1604 of ABB AB.
I.e. energy accumulation current converter is connected with DC bus here, the current voltage value being able to detect in DC bus, such as
Detect current voltage value 800V, be higher than first setting voltage value 750V, then by the corresponding electricity of 50V voltage being higher by store into
In energy storage device, when there is ship to be charged, if the voltage value in DC bus is caused to become smaller, after such as less than 700V, then
Energy storage device electricity is input to DC bus again, to improve the voltage value in DC bus.
In view of the capacitance of single energy storage device is limited, if stored by an energy storage device by DC bus
The electricity got possibly can not store enough electricity, to maintain the voltage value in DC bus to stablize, implement in the application
In example, considers that energy-storage units include at least two groups, that is, include at least two energy storage devices and two energy accumulation current converters, it in this way can be with
The extra electricity of DC bus is stored by least two groups energy storage device.
Specifically, energy storage device here may include rechargeable battery or capacitor.
In one embodiment, as shown in figure 3, ship power supply unit further includes powering shelf 105, energy storage cabinet 202, electric current
Input line 106 and current output line 107, rectification unit 101, energy accumulation current converter 1021 and power converter 103 are set to power supply
In cabinet 105, energy storage device 1022 is set in energy storage cabinet 202.
Live wire input port 1051, electric wire delivery outlet 1052 and the first electric current mouth 1053, energy storage cabinet is arranged in powering shelf 105
202 are provided with the second electric current mouth 2021.
Wherein, it after electric current input line 106 is connect with rectification unit 101, passes through electric wire input port 1051 and is connect with power grid, electricity
After stream output line 107 is connect with power converter 103, passes through electric wire delivery outlet 1052 and connect with ship to be charged, energy storage unsteady flow
After the output end of device 1021 passes through the first electric current mouth 1053 and the second electric current mouth 2021, it is connect with energy storage device 1022.
Here, specifically, powering shelf can also include the first powering shelf 105A, the second powering shelf 105B and third powering shelf
105C, wherein rectification unit 101 is set in the first powering shelf 105A, and power converter 103 is set to the second powering shelf 105B
Interior, energy accumulation current converter 1021 is set in third powering shelf 105C, as shown in figure 4, DC bus 104 passes through the second powering shelf
105B is respectively penetrated in the first powering shelf 105A and third powering shelf 105B.
In one embodiment, as shown in figure 5, further including transformer 108,108 input terminal of transformer is connect with power grid,
Output end is connect by electric current input line with rectification unit 101.
Transformer 108 is transmitted to rectification unit 101 after carrying out transformation to alternating current for obtaining alternating current from power grid.
For example, the voltage of the alternating current of output is significantly larger than DC bus and is able to bear when power grid is high-voltage fence
Voltage, then after the alternating current for needing transformer to export high-voltage fence is first depressured, then be input to rectification unit.
In one embodiment, ship power supply unit further includes interactive display, and interactive display is set to powering shelf
Shell on；
Interactive display, for showing power supply state information.
Interactive display can be touch display and be also possible to key display, and staff can be aobvious by the interaction
Show that device checks power supply state information, power supply process can also be controlled by the interactive display, for example can terminate to power, restart
Power supply and selection supply voltage etc..
In one embodiment, as shown in fig. 6, the ship power supply unit further includes harbour junction box 109, harbour wiring
Case 109 is provided at least one electric wire input terminal 1091 and at least one electric wire output end 1092.
Current output line 107 is connect with electric wire input terminal 1091.
Electric wire output end 1092 is used to connect the cable plug of ship to be charged.
, can be to avoid the situation of Ground wire confusion by the way that harbour junction box is arranged, for example can be buried with current output line
It in underground, then elevates above the soil at harbour junction box and is connect with the electric wire input terminal of harbour junction box, when ship needs to charge
When, it is only necessary to ship is connected to harbour junction box by electrical cables plug above.
When ship power supply unit includes multiple power converters, corresponding includes multiple harbour junction boxes, and each power supply becomes
The current output line for flowing device connection connects a harbour junction box.
Optionally, electric wire output end includes the output port of a variety of different models, in this way can be for different types of cable
Plug connection, facilitates the use of a plurality of types of ships to be charged.
In one embodiment, as shown in fig. 7, ship power supply unit further includes control unit 201, control unit 201
It is connect respectively with rectification unit 101 and energy-storage units 102.
Here control unit can be programmable logic controller (PLC).
Control unit 201, for detecting the remaining capacity of the storage of energy-storage units 102, when determining remaining capacity less than first
When setting power threshold, the signal for being used to indicate and forbidding exporting electricity is sent to energy-storage units 102, and to the ship to charge
Send the indication signal for stopping charging or limitation charge power；When determining that remaining capacity reaches the second setting power threshold,
The signal for being used to indicate and stopping taking electricity is sent to rectification unit 101.
Energy-storage units, for stopping the electricity of storage is defeated after receiving the signal for being used to indicate and forbidding exporting electricity
Enter to DC bus.
Rectification unit obtains alternating current from power grid for stopping after receiving stopping and taking electric signal.
Here the first setting power threshold is less than the second setting power threshold, and the first setting power threshold can be low here
Power threshold, the second setting power threshold can be high power threshold, for example low battery threshold value is the 30% of Full Charge Capacity, high electricity
Threshold value is the 90% of Full Charge Capacity, when determining remaining capacity less than the first setting power threshold, that is, judges that charging equipment is in low
State of charge, control unit sends the order forbidden to DC bus power transmission to energy-storage units 102 at this time, even if direct current is female at this time
Line voltage is lower than setting value, and energy-storage units can not also participate in control DC bus-bar voltage, while the ship that notice is charging stops
Only charge or limit charge power；When determining that remaining capacity reaches the second setting power threshold, that is, judge at charging equipment
In Full Power State, is sent to rectification unit 101 stop taking electric signal at this time.
In this way, detecting the remaining capacity of energy-storage units by control unit, on the one hand protects and to be stored in energy-storage units
Electricity is unlikely to too low or too high, to influence the service life and performance of energy storage device, on the other hand also avoids in length
When time charges without ship, rectification unit also continues to obtain alternating current from power grid, and the voltage of DC bus is caused persistently to increase, and
Energy-storage units can not accommodate the generation of the case where more electricity again, while also avoid when energy-storage units remaining capacity deficiency, and
Charging ship still continue high-power charging and cause DC bus voltage value can not be stable problem.
Therefore by the control of control unit, the work of rectification unit and energy-storage units can be automatically regulated, thus more
Easily maintain the voltage stabilization of DC bus.
In another embodiment, control unit is also used to receive externally input first setting voltage value and the
When two setting voltage values, it is sent to energy-storage units and is stored.
Here the first setting voltage value and the second setting voltage value can be after background server determines and send, and work as control
After component receives the first setting voltage value and the second setting voltage value, by the first setting voltage value and the second setting voltage
Value is sent to energy-storage units, so that unit adjusts the electricity of DC bus based on the first setting voltage value and the second setting voltage value
Pressure is stablized.
In another embodiment, control unit is also connect with power converter；
The control unit is also used to after determining that power converter is electrically connected with the ship completion to be charged, to electricity
Source current transformer sends power supply instruction.
For example, whether can detecte cable connector when being provided with signal transducer on the cable connector of ship side to be charged
It is electrically connected with power converter side, it, can be by the lateral control unit of ship to be charged after determining be electrically connected
Power request is sent, in this way, control unit sends output instruction after receiving power request, to power converter.
Optionally, power supply instruction here can carry the load voltage value that ship to be charged is powered, and rectify in this way
The corresponding voltage value of the electricity obtained from DC bus can be adjusted to be charged by unit after receiving the load voltage value
The voltage rating and frequency values of ship, then charging ship is treated based on voltage rating and frequency values and is powered.
Certainly, the function of control unit is not limited only to the above.
Certainly, each unit in ship power supply unit is it is possible that failure, when some unit breaks down in order to
Failure is limited in minimum and will not therefore influence other units, while for the ease of maintenance, in another embodiment party
In formula, ship power supply unit further includes multiple groups protection circuit, and multiple groups protect circuit to include at least rectification unit and protect circuit, energy storage
Cell protection circuit and power converter protect circuit.
Wherein, rectification unit protects circuit, and one end is connected with rectification unit, and the other end is connected with the DC bus；
Energy-storage units protect circuit, and one end is connected with energy-storage units, and the other end is connected with DC bus；
Power converter protects circuit, and one end is connected with power converter, and the other end is connected with DC bus.
Here protection circuit may include switch and protection fuse, when some unit breaks down, such as when whole
It, can be by disconnecting the switch in rectification unit protection circuit when flowing unit failure, personnel easy to repair overhaul.
In one embodiment, control unit is additionally provided with communication module, for receiving telecommunications number, such as wait fill
The electric signal that electric ship or background server are sent.
Ship power supply unit mentioned above in order to better understand is explained below with reference to a specific embodiment
State, as shown in Figure 8, it can be seen that control unit is connect with energy accumulation current converter, the energy storage device in energy-storage units respectively, also with
Rectification unit is connected with harbour junction box.
Control unit connect with harbour junction box can determine ship to be charged with and the electric current that connect of power converter it is defeated
Whether outlet, which is electrically connected, finishes, while the abnormal state signal of power supply unit can be transmitted to ship by harbour junction box
On, so that ship is stopped high-power charging.The function that control unit is connect with energy accumulation current converter, energy storage device and rectification unit is
It is described above, details are not described herein.
Embodiment 2
The embodiment of the present application 2 provides a kind of ship charging system, as shown in figure 9, background server 801, ship to be charged
The ship power supply unit 100 that oceangoing ship 802 and such as embodiment 1 propose.
Ship power supply unit 100, for obtaining alternating current from power grid, and the alternating current that will acquire is converted to direct current progress
Storage, receive treat charging ship be powered power supply instruction when, treat charging ship 802 be powered, Yi Jiyong
Background server 801 is fed back in the power supply situation information that charging ship 802 is powered will be treated；
Background server 801, for receiving and showing the power supply situation information of each ship power supply unit feedback；
Ship 802 to be charged, after the completion of determining charging circuit connection, when being berthed based on the direct current maintenance received
It the operating of necessaries and charges to the energy storage device on ship.
Wherein, background server is monitored the power supply situation information of ship power supply unit, in addition, in embodiment 1
After one setting voltage value and the second setting voltage value can be determined by background server here, it is sent to ship power supply unit,
So that the energy-storage units in ship power supply unit are based on the first setting voltage value and the second setting voltage value adjusts DC bus
Voltage value.
In addition, if the output of ship power supply unit is direct current, so ship to be charged can be directly based upon and receive
Direct current charges, and can directly control powered on-off by switch in this way, is ship to be charged as shown in Figure 10
Circuit structure diagram, wherein the circuit for being connected to harbour junction box can carry out taking electricity from ship power supply unit, when ship to be charged
It can be the circuit point by electric switch 1 and where by electric switch 2 by two sections of circuits when the switch of DC grid in oceangoing ship disconnects
It does not carry out taking electricity from ship power supply unit, it can be seen that the circuit by electric switch 1 and where by electric switch 2 does not need to be arranged whole
Unit is flowed, DC grid can directly be reached by the direct current of acquisition, for the storage of the complete battery pair of energy accumulation current converter of shipboard
Electricity, in addition during the charging process, some equipment of ship side are still within working condition, such as the power supply connecting with DC grid
Inverter can will acquire the direct current in DC grid, and be input to AC network after direct current is converted to alternating current, supply
It needs to use using the current consuming apparatus of alternating current on ship to be charged.
Ship power supply unit and ship charging system provided by the embodiments of the present application, the ship power supply unit include: rectification
Unit, energy-storage units, power converter and DC bus；Rectification unit one end is connect with power grid, and the other end and DC bus connect
It connects, energy-storage units are connect with DC bus, and power converter is connect with DC bus；Rectification unit is handed over for obtaining from power grid
Galvanic electricity is transmitted to DC bus after converting alternating current to direct current；Energy-storage units detect the current of DC bus for working as
When voltage value is greater than the first setting voltage value, electricity is obtained from DC bus, and the electricity that will acquire is stored；And
For when detecting the current voltage value of DC bus less than the second setting voltage value, the electricity of storage to be input to direct current mother
Line, so that the voltage value of DC bus maintains set interval；Power converter treats charging ship progress for working as to receive
When the power supply instruction of power supply, electricity is obtained from DC bus, and the electricity that will acquire is exported.
As it can be seen that the embodiment of the present application is not to directly acquire the electricity of power grid to treat charging ship and be powered, but hold
After continuously getting electricity from power grid with smaller power, by charge transport into DC bus, controlled by energy-storage units straight
The voltage of stream bus is maintained in certain section, in this way, when that when ship charges, electricity can be stored in energy-storage units
In, when ship to be charged needs to charge, the electricity of energy-storage units can be released with the electricity in power grid together to ship
Oceangoing ship carries out high-power power supply, does not on the one hand need ship in this way and is equipped with a large amount of battery, reduces the construction cost of ship, and mention
On the other hand the high operational efficiency of ship when ship quick charge, after causing DC bus-bar voltage to decline, can pass through
The voltage in DC bus is adjusted in the energy-storage units for storing electricity in advance, does not need directly from power grid with very high-power
Electricity is taken, therefore reduces the requirement to the capacitance of power grid.
In addition, ship power supply unit provided by the embodiments of the present application, can either provide direct current for ship to be charged, be not necessarily to
Rectification unit is still further arranged in ship, to simplify the circuit structure of ship side；Also exchange can be provided for ship to be charged
Electricity, to be spot ship power supply when pulling in shore.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description the application and simplify description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as the limitation to the application.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in this application.
Finally, it should be noted that embodiment described above, the only specific embodiment of the application, to illustrate the application
Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen
It please be described in detail, those skilled in the art should understand that: anyone skilled in the art
Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution.The protection in the application should all be covered
Within the scope of.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of ship power supply unit characterized by comprising rectification unit, energy-storage units, power converter and direct current are female
Line；
Described rectification unit one end is connect with power grid, and the other end is connect with the DC bus, energy-storage units and described straight
Bus connection is flowed, the power converter is connect with the DC bus；
The rectification unit is transmitted to institute after the alternating current is converted to direct current for obtaining alternating current from the power grid
State DC bus；
The energy-storage units, for when detect the DC bus current voltage value be greater than first setting voltage value when, from
Electricity is obtained in the DC bus, and the electricity that will acquire is stored；And the DC bus is detected for working as
Current voltage value less than second setting voltage value when, the electricity of storage is input to the DC bus；
The power converter, for when receive treat power supply instruction that charging ship is powered when, it is female from the direct current
Electricity is obtained in line, and the electricity that will acquire is exported.
2. ship power supply unit according to claim 1, which is characterized in that the energy-storage units include energy accumulation current converter and
Energy storage device, the input terminal of the energy accumulation current converter are connect with the DC bus, the output end of the energy accumulation current converter and institute
State energy storage device connection；
The energy accumulation current converter, for being greater than the first setting voltage value when the current voltage value for detecting the DC bus
When, electricity is obtained from the DC bus, the energy storage device is input to and is stored；And works as and detect that the direct current is female
When the current voltage value of line is less than the second setting voltage value, electricity is obtained from the energy storage device and is input to the direct current mother
Line.
3. ship power supply unit according to claim 1, which is characterized in that
The power converter, specifically for when receive treat the power supply that is powered of charging ship and indicate when, will acquire
The corresponding voltage value of electricity is adjusted to the load voltage value of the ship to be charged, based on the load voltage value to described wait fill
Electric ship is powered.
4. ship power supply unit according to claim 1, which is characterized in that it further include control unit, the control unit
It is connect respectively with the rectification unit and energy-storage units；
The control unit, for detecting the remaining capacity of energy-storage units storage, when determining the remaining capacity less than the
When one setting power threshold, Xiang Suoshu energy-storage units send the signal for being used to indicate and forbidding exporting electricity, and to charging
Ship sends the indication signal for stopping charging or limitation charge power；When determining that remaining capacity reaches the second setting power threshold
When, Xiang Suoshu rectification unit sends the signal for being used to indicate and stopping taking electricity；
The energy-storage units, for when receive it is described be used to indicate the signal for forbidding exporting electricity after, stop the electricity of storage
Amount is input to the DC bus；
The rectification unit, for when receive it is described be used to indicate the signal for stopping taking electricity after, stop obtaining from the power grid
Alternating current.
5. ship power supply unit according to claim 4, which is characterized in that the control unit also with the power supply unsteady flow
Device connection；
The control unit is also used to after determining that the power converter is electrically connected with the ship completion to be charged, to institute
It states power converter and sends the power supply instruction.
6. ship power supply unit according to claim 2, which is characterized in that the ship power supply unit further include powering shelf and
Energy storage cabinet, electric current input line and current output line；
The rectification unit, the energy accumulation current converter and the power converter are set in the powering shelf, and the energy storage is set
It is standby to be set in the energy storage cabinet；
Powering shelf setting live wire input port, electric wire delivery outlet and the first electric current mouth, the energy storage cabinet are provided with the second electricity
Head piece；
After the electric current input line is connect with the rectification unit, passes through the electric wire input port and connect with the power grid；It is described
After current output line is connect with the power converter, passes through the electric wire delivery outlet and connect with the ship to be charged；It is described
After the output end of energy accumulation current converter passes through the first electric current mouth and the second electric current mouth, it is connect with the energy storage device.
7. ship power supply unit according to claim 6, which is characterized in that further include transformer, the transformer it is defeated
Enter end to connect with the power grid, the output end of the transformer is connect by the electric current input line with the rectification unit；
The transformer is transmitted to the rectification after carrying out transformation to the alternating current for obtaining alternating current from the power grid
Unit.
8. ship power supply unit according to claim 6, which is characterized in that further include harbour junction box, the harbour connects
Line case is provided at least one electric wire input terminal and at least one electric wire output end；
The current output line is connect with the electric wire input terminal；
The electric wire output end is used to connect the cable plug of ship to be charged.
9. ship power supply unit according to claim 1, which is characterized in that the energy-storage units include at least two groups.
10. a kind of ship charging system, which is characterized in that including background server, ship to be charged and as claim 1 to
9 any ship power supply units；
The ship power supply unit, for obtaining alternating current from power grid, and the alternating current that will acquire is converted to direct current and is deposited
Storage, receive treat charging ship be powered power supply instruction when, the ship to be charged is powered, and is used for
The power supply situation information being powered to the ship to be charged is fed back into the background server；
The background server, for receiving and showing the power supply situation information of each ship power supply unit feedback；
The ship to be charged is charged after the completion of determining charging circuit connection based on the direct current received.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197178.2A CN109742835A (en) | 2019-03-15 | 2019-03-15 | A kind of ship power supply unit and ship charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197178.2A CN109742835A (en) | 2019-03-15 | 2019-03-15 | A kind of ship power supply unit and ship charging system |
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| CN109742835A true CN109742835A (en) | 2019-05-10 |
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| CN201910197178.2A Pending CN109742835A (en) | 2019-03-15 | 2019-03-15 | A kind of ship power supply unit and ship charging system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435467A (en) * | 2019-07-02 | 2019-11-12 | 香港中文大学（深圳） | Vessel berth charging butt junction location method |
| CN111181183A (en) * | 2020-01-18 | 2020-05-19 | 中国人民解放军海军潜艇学院 | Ship shore power system and control method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110298283A1 (en) * | 2008-12-12 | 2011-12-08 | Ambra Sannino | System And Apparatus For Power Transfer to Vessels |
| JP2012210018A (en) * | 2011-03-29 | 2012-10-25 | Sharp Corp | Dc power-feeding system |
| CN105305408A (en) * | 2015-11-12 | 2016-02-03 | 许继电源有限公司 | Control method for shore power source system |
| CN205070420U (en) * | 2015-09-24 | 2016-03-02 | 许继电源有限公司 | Shore power source system |
| WO2016045508A1 (en) * | 2014-09-23 | 2016-03-31 | 国电南瑞科技股份有限公司 | Intelligent management and control device and method for new energy power station concentration area |
| CN106005343A (en) * | 2016-07-20 | 2016-10-12 | 周长宾 | Automatic parking and charging device of unmanned ship |
| CN106356837A (en) * | 2016-11-11 | 2017-01-25 | 哈尔滨工程大学 | Energy storage module automatic charge/discharge method for ship MVDC integrated electrical propulsion system |
| CN106816874A (en) * | 2016-01-28 | 2017-06-09 | 上海冠图电气科技有限公司 | Shipping shore power system and method for supplying power to based on the compound power network of alternating current-direct current |
| WO2017102400A1 (en) * | 2015-12-14 | 2017-06-22 | Siemens Aktiengesellschaft | Charging control system |
| CN107394831A (en) * | 2017-08-29 | 2017-11-24 | 国家电网公司 | A kind of harbour alternating current-direct current series-parallel connection power distribution network and its integrated dispatch management-control method |
| CN209375217U (en) * | 2019-03-15 | 2019-09-10 | 王龙 | A kind of ship power supply unit and ship charging system |
-
2019
- 2019-03-15 CN CN201910197178.2A patent/CN109742835A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110298283A1 (en) * | 2008-12-12 | 2011-12-08 | Ambra Sannino | System And Apparatus For Power Transfer to Vessels |
| JP2012210018A (en) * | 2011-03-29 | 2012-10-25 | Sharp Corp | Dc power-feeding system |
| WO2016045508A1 (en) * | 2014-09-23 | 2016-03-31 | 国电南瑞科技股份有限公司 | Intelligent management and control device and method for new energy power station concentration area |
| CN205070420U (en) * | 2015-09-24 | 2016-03-02 | 许继电源有限公司 | Shore power source system |
| CN105305408A (en) * | 2015-11-12 | 2016-02-03 | 许继电源有限公司 | Control method for shore power source system |
| WO2017102400A1 (en) * | 2015-12-14 | 2017-06-22 | Siemens Aktiengesellschaft | Charging control system |
| CN208530310U (en) * | 2015-12-14 | 2019-02-22 | 西门子股份公司 | Ship power supply charge control system |
| CN106816874A (en) * | 2016-01-28 | 2017-06-09 | 上海冠图电气科技有限公司 | Shipping shore power system and method for supplying power to based on the compound power network of alternating current-direct current |
| CN106005343A (en) * | 2016-07-20 | 2016-10-12 | 周长宾 | Automatic parking and charging device of unmanned ship |
| CN106356837A (en) * | 2016-11-11 | 2017-01-25 | 哈尔滨工程大学 | Energy storage module automatic charge/discharge method for ship MVDC integrated electrical propulsion system |
| CN107394831A (en) * | 2017-08-29 | 2017-11-24 | 国家电网公司 | A kind of harbour alternating current-direct current series-parallel connection power distribution network and its integrated dispatch management-control method |
| CN209375217U (en) * | 2019-03-15 | 2019-09-10 | 王龙 | A kind of ship power supply unit and ship charging system |
Non-Patent Citations (2)
| Title |
|---|
| 吕跃春;汪会财;李志勇;刘永相;: "电动汽车充储放电站储能系统容量配置方法", 电力系统及其自动化学报, no. 11, 15 November 2017 (2017-11-15) * |
| 李奥;王福林;: "建筑直流供电和蓄电系统蓄电池容量优化设计", 建筑电气, no. 04, 25 April 2017 (2017-04-25) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435467A (en) * | 2019-07-02 | 2019-11-12 | 香港中文大学（深圳） | Vessel berth charging butt junction location method |
| CN110435467B (en) * | 2019-07-02 | 2021-07-06 | 深圳市人工智能与机器人研究院 | Docking positioning method for ship berthing charging |
| CN111181183A (en) * | 2020-01-18 | 2020-05-19 | 中国人民解放军海军潜艇学院 | Ship shore power system and control method |
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