CN208209525U - Shaft generator system and ship - Google Patents
Shaft generator system and ship Download PDFInfo
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- CN208209525U CN208209525U CN201820766888.3U CN201820766888U CN208209525U CN 208209525 U CN208209525 U CN 208209525U CN 201820766888 U CN201820766888 U CN 201820766888U CN 208209525 U CN208209525 U CN 208209525U
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Abstract
It includes: axle generator that the utility model, which provides a kind of shaft generator system and ship, the system,；Excitation current transforming unit；DC bus connects the axle generator by the excitation current transforming unit, and connects the axle generator with first switch by concatenated first current transformer；The battery component for carrying out charge and discharge is fluctuated according to the DC bus-bar voltage, is connected on the DC bus by concatenated second switch and the first DC converter；And shaft generator machine controller, logic electric signal is issued to first current transformer, and control the closure and disconnection of the first switch.According to network load state, Shaft-Generator supply variation and power network fluctuation as caused by the host propulsion fluctuation of load can be compensated by carrying out corresponding charge and discharge by battery component, the quickly fluctuation of compensation network load, to reduce the response speed requirement to power generation prime motor, reduce the high-frequency fluctuation of generator, the start-stop number of generator is reduced, maintenance cost is reduced.
Description
Technical field
The utility model relates to electrical generator fields, relate more specifically to shaft generator system and with the shaft generator system
The ship of system.
Background technique
Ship Shaft Generator System is powered from marine main engine driving three-phase synchronous AC generator to network of ship
System.The power of usual marine main engine has 10% or more allowance, and the generator capacity installed on ship is without super
It crosses this numerical value, and engine efficiency is also higher than conventional diesel oil subsidiary engine generator, therefore natural pays the utmost attention to use
Axle generator.Ship axle generator is referred to by the power supply unit of host driven marine generator.
Axle generator is powered by means of the frequency converter with grid side by ship electric network.Axle generator, which is used as, to be started
The operation of machine is known as " Power-Take-In " (PTI).Energy once inputs in ship electric network from axle generator, shaft generator
The transformer of machine, frequency converter and grid side just equally constitutes a shaft generator system.Axle generator is transported as generator
Row, as ship electric network produces electricl energy, referred to as " Power-Take-Off " (PTO).
Shaft generator system can also reduce the consumption of fuel oil, light diesel fuel and lubricating oil other than energy conservation, extend
Maintenance cycle and then the operation management for reducing maintenance cost and simplified ship, while cabin noise and cabin temperature can be reduced, change
Kind cabin atmosphere.
According to the host type of exchange ship, ship Shaft-Generator can be divided into varying pitch propeller
(Controllable Pitch Propeller, CPP) ship shaft band generator forms and constant-pitch propeller (Fixed
Pitch Propeller, FPP) ship shaft band generator forms.Although CPP axle generator can make the electricity of axle generator
Energy frequency keeps relative stability, but limits its popularization and application due to its tuning for Controllable Pitch Propeller higher cost.FPP axle generator needs
Revolving speed or frequency compensation device is added, but the rotation speed change allowed is limited in scope, has been applied in modern ships few.
The technical issues of CPP or FPP more than no matter using, shaft generator system will face, is, due to host
Promote the fluctuation of load that can cause Shaft-Generator supply variation, electrical load fluctuation can cause power network fluctuation, network load again
Fluctuation can have requirements at the higher level to the response speed of power generation prime motor, and cause generator high-frequency fluctuation and generator rise
Stop number increase, improves maintenance cost.
Utility model content
In view of above, the utility model provide it is a kind of can at least overcome or alleviate in the presence of the prior art one
The shaft generator system and ship of a or multiple technical problems.
It is according to the present utility model in a first aspect, provide a kind of shaft generator system, to DC grid or friendship
The power supply of galvanic electricity net, which includes: axle generator；Excitation current transforming unit；DC bus is connected by the excitation current transforming unit
The axle generator is connect, and the axle generator is connected with first switch by concatenated first current transformer；According to described
DC bus-bar voltage fluctuation carries out the battery component of charge and discharge, is connected to by concatenated second switch and the first DC converter
On the DC bus；And shaft generator machine controller, logic electric signal is issued to first current transformer, and described in control
The closure and disconnection of first switch.
It is quickly filled accordingly according to network load state by battery component progress by this shaft generator system
Electric discharge, which can be compensated, promotes Shaft-Generator supply variation caused by the fluctuation of load as host, and corresponding fast charging and discharging may be used also
To compensate power network fluctuation caused by electrical load is fluctuated, and the quickly fluctuation of compensation network load, to reduce former to power generation
The response speed requirement of motivation, reduces the high-frequency fluctuation of generator, reduces the start-stop number of generator, reduce maintenance cost.
Some embodiments according to the present utility model, the battery component include battery and the control second switch closure
With the battery controller of disconnection and the battery charging and discharging.By the real-time control of battery controller, controllable battery is opened
With, stop, and realize quantitative charge and discharge.
Some embodiments according to the present utility model, the battery controller include: voltage detecting circuit；And PLC；Its
Described in PLC described in the voltage input that will test of voltage detecting circuit.
Some embodiments according to the present utility model, the PLC issue the telecommunications of closing or opening to the second switch
Number.
Some embodiments according to the present utility model, first DC converter include brilliant by capacitor, insulated gate bipolar
The circuit of body pipe (IGBT) power cell and filter unit composition, realizes the matched of cell output voltage and DC bus-bar voltage
Meanwhile adapting to high current operation.
Some embodiments according to the present utility model are connected with third current transformer and/or the second direct current on the DC bus
Converter, the third current transformer is to connect AC network, and second DC converter is to connect DC grid or institute
It states DC bus and is directly connected to DC grid.
Some embodiments according to the present utility model have between the axle generator and the first switch for bank electricity
The port of access.When being powered using bank electricity, power supply can be connected to network of ship by the first current transformer on the bank, realize electric voltage frequency
It is adjustable, therefore improve the adaptability that power supply is connect to different regions bank.
Second aspect according to the present utility model provides a kind of ship.The ship includes: DC grid and/or exchange
Power grid；It is connected to the generator of the DC grid and/or AC network；Shaft generator system as described above, the axis
Band generator system accesses the DC grid and/or AC network.
Some embodiments according to the present utility model, the ship include subsidiary engine, and the subsidiary engine is connected by the 4th current transformer
It is connected to the DC bus.
Some embodiments according to the present utility model, the generator are connected to the direct current by the 5th current transformer
Net.
Detailed description of the invention
In the accompanying drawings, similar/identical appended drawing reference is typically opening through different views and refers to similar/identical part.It is attached
Figure is not necessarily to scale, but usually emphasizes the diagram to the principles of the present invention.In the accompanying drawings:
The shaft generator system that Fig. 1 shows one embodiment according to the present utility model be connected to DC grid and/
Or the schematic diagram of AC network；
Fig. 2A is to be in power output (PTO) mode according to the shaft generator system of one embodiment of the utility model
Schematic diagram, it is shown that the energy stream from axle generator to network of ship；
Fig. 2 B is to be in power according to the shaft generator system of one embodiment of the utility model to input (PTI) mode
Schematic diagram, it is shown that energy transmission to axle generator；
Fig. 2 C is the signal that shore to ship mode is according to the shaft generator system of one embodiment of the utility model
Figure, it is shown that from power supply on the bank to the energy stream of network of ship.
Specific embodiment
It is described in detail below with reference to each embodiment of the attached drawing to the disclosure.One or more examples of embodiment
As shown by attached drawing.Embodiment is provided by the elaboration of the disclosure, and is not intended as the limitation to the disclosure.For example,
Feature shown or described by a part as one embodiment may be used to generate another in another embodiment
Further embodiment.The disclosure is intended to include these and other modifications and variations for belonging to disclosure scope and spirit.
As foregoing Background is discussed, shaft generator system problems faced is: since host promotes negative carrier
Dynamic to cause Shaft-Generator supply variation, electrical load fluctuation can cause power network fluctuation, the fluctuation meeting pair of network load again
The response speed of power generation prime motor has requirements at the higher level, and the high-frequency fluctuation of generator and the start-stop number of generator is caused to increase
Add, improves maintenance cost.
For this purpose, the design of the utility model is that DC bus is arranged in shaft generator system, and according to described straight
Flow the battery component that busbar voltage fluctuation carries out charge and discharge.According to network load state, carried out by battery component corresponding fast
Fast charge and discharge, which can be compensated, promotes Shaft-Generator supply variation caused by the fluctuation of load, corresponding fast charging and discharging as host
It can also compensate for power network fluctuation caused by electrical load is fluctuated, and the quickly fluctuation of compensation network load, to reduce to hair
The response speed requirement of electric prime mover, reduces the high-frequency fluctuation of generator, reduces the start-stop number of generator, reduce maintenance at
This.
The shaft generator system of the utility model, to DC grid or AC network power supply, which includes: axis
Band generator；Excitation current transforming unit；DC bus connects the axle generator by the excitation current transforming unit, and passes through
Concatenated first current transformer connects the axle generator with first switch；It is fluctuated according to the DC bus-bar voltage and carries out charge and discharge
The battery component of electricity, is connected on the DC bus by concatenated second switch and the first DC converter；And axis band
Engine controller, the electric signal of logic control and parameter setting is issued to first current transformer, and is controlled described first and opened
The closure and disconnection of pass.
The shaft generator system 1 that Fig. 1 shows one embodiment according to the present utility model is connected to DC grid 61
And/or the schematic diagram of AC network 62.
Shaft generator system 1 to DC grid 61 or AC network 62 to be powered.As shown in Figure 1, the system 1
Mainly include axle generator 11, excitation current transforming unit 12, DC bus 17, shaft generator machine controller 16, controlled by battery
The battery component 5 that device 151 and battery 152 are constituted (refering to Fig. 2A).
Such as common shaft generator system, axle generator 11 is connected to host 7, and host 7 drives the operating of paddle 8.Axis
Band generator 11 is also connected on DC bus 17 by concatenated first switch K1 and the first current transformer 131.First current transformer
131 be a DC/AC current transformer, and the end DC is connected on DC bus 17, and the end AC is connected to axle generator 11.
Shaft generator machine controller 16 controls excitation current transforming unit 12, and is controlled by the open and close of first switch K1
The enabling of axle generator 11 stops.
Battery 152 is connected on DC bus 17 by concatenated second switch K2 and the first DC converter 132.Battery
Controller 151 can control the enabling of battery 152, stop, and realize quantitative charge and discharge, thereby compensate for being promoted by host 7 negative
Shaft-Generator supply variation caused by carrier wave is dynamic, caused by corresponding fast charging and discharging can also compensate for electrical load fluctuation
Power network fluctuation, and the quickly fluctuation of compensation network load reduce hair to reduce the response speed requirement to power generation prime motor
The high-frequency fluctuation of motor reduces the start-stop number of generator, reduces maintenance cost.
At the same time, 12 working power of excitation current transforming unit of axle generator 11 comes from DC bus 17, when main power grid
When power loss, battery 152 can play the role of backup power source, it is ensured that excitation current transforming unit 12 is powered.
Battery controller 151 can choose existing control unit in the market.A kind of embodiment party according to the present utility model
Formula, battery controller 151 include voltage detecting circuit and control unit, such as PLC.Wherein the voltage detecting circuit will be examined
PLC described in the voltage input measured, the PLC issue the electric signal of closing or opening to second switch 142 to control battery 152
Enabling, stop, while PLC controls the first DC converter 132 and realizes charge and discharge quantitative to battery 152.
First DC converter 132 includes the circuit being made of capacitor, IGBT power cell and filter unit, realizes battery
While the matching of 152 output voltages and 17 voltage of DC bus, high current operation is adapted to.
In order to realize the connection with power grid, selectively, third current transformer 133 or second is connected on DC bus 17 directly
Current converter 135.Wherein third current transformer 133 is a DC/AC current transformer, and the end DC is connected on DC bus 17, and the end AC connects
It is connected to AC network 62.AC network 62 is also connected with generator 42 and load 5.
Similarly, the second DC converter 135 is a DC/DC converter, and one end is connected on DC bus 17, another
End is connected to DC grid 61.When DC grid 61 and 17 frequency range difference of DC bus, the second DC converter can be used
135.In the situation identical with 17 frequency range of DC bus of DC grid 61, which be can be omitted, i.e., directly
Stream bus 17 is directly connected to DC grid 61.
A kind of direct application field of above-mentioned shaft generator system 1 is exactly ship.The ship includes: DC grid 61
And/or AC network 62, it is connected to the generator 41,42 of the DC grid 61 and/or AC network 62, and such as Fig. 1 institute
The shaft generator system 1 shown, shaft generator system 1 access the DC grid 61 and/or AC network 62.
Port for bank electricity access can also be set between axle generator 11 and first switch K1.It is powered using bank electricity
When, power supply 3 can access the port on the bank, be connected to DC grid 61 and/or AC network 62 by the first current transformer 131, real
Existing electric voltage frequency is adjustable, therefore improves the adaptability that power supply is connect to different regions bank.
The ship includes subsidiary engine 2, and the subsidiary engine 2 is connected to DC bus 17 by the 4th current transformer 134.
When using DC grid 61, generator 41 is connected to the DC grid 61 by the 5th current transformer.Work as direct current
When power grid 61 is identical with 17 frequency range of DC bus, generator 41 can be directly connected to DC bus by the 5th current transformer, section
Dedicated fairing is saved.
As a result, on ship when electrical breakdown, battery can control by battery controller 151 and the first DC converter 132
152 are used as backup power source, maintain uninterrupted power supply in important equipment certain time.
In addition, low speed host and power generation are had differences with high speed subsidiary engine working characteristics, thus axle generator 11 with it is auxiliary
Machine 2 is difficult to stablize parallel running.The characteristics of using 152 fast response time of battery, realizes the quick compensation to power network fluctuation, guarantees
Net generator 41,42 will not and off-the-line different because of acceleration and deceleration characteristic.Battery controller 151 is equipped with the first DC converter
132, it can control battery 152 according to the voltage fluctuation of DC bus 17 and quickly carry out charge and discharge electroresponse, keep straight to greatest extent
Flow the voltage stabilization of bus 17.
From the above description, it can be seen that the shaft generator system 1 of one embodiment of the utility model uses DC bus
17 also bring following advantage with the cooperation of battery component 5, the two synergistic effect: battery 152 passes through the first DC converter of DC/DC
132 connect with DC bus 17, realize to the quantitative charge and discharge control of battery 152, can also widen electricity by its stepping functions
152 type selecting range of pond, and improve the utilization rate of battery 152.Due to using voltage source formula unsteady flow, idle function can be provided to load
Rate, therefore also eliminate the reactive source additionally configured.
Below refering to Fig. 2A -2C, shaft generator system 1 is discussed in detail through operating power output (PTO) mould that can be at
Formula, power input (PTI) mode and shore to ship mode.
Fig. 2A is to be in power output (PTO) mode according to the shaft generator system of one embodiment of the utility model
Schematic diagram, it is shown that the energy stream from axle generator to network of ship.
As shown in Figure 2 A, in PTO operation, axle generator 11 is run as generator.Axle generator 11 can be lonely
Island mode (single generator) operation or with other subsidiary engine parallel runnings.When with other parallel running of generators, shaft generator
Machine system 11 adjusts voltage and frequency using sagging control (droop control).In addition to above-mentioned fundamental characteristics, axle generator
System 1 further includes other functions: compensating the unbalanced load of power grid, moreover it is possible to provide reactive compensation.
Fig. 2 B is to be in power according to the shaft generator system of one embodiment of the utility model to input (PTI) mode
Schematic diagram, it is shown that energy transmission to axle generator.As shown in Figure 2 B, in PTI operation mode, axle generator 11 is made
For motor running.Electric power is provided by subsidiary engine 2.
Safe function of pulling in shore can be used when host 7 breaks down.Host 7 can be disconnected from axis, so that axis band be made to send out
Motor 11 can independent operating, to repair host 7.The electric power of axle generator 11 can be used for improving 7 power of host.
By control 152 fast charging and discharging of battery, can adequate compensation promote load fluctuation, improve subsidiary engine 2 operation effect
The propulsion capability of rate and axle generator 11.When needed, it can star host 7.
Fig. 2 C is the signal that shore to ship mode is according to the shaft generator system of one embodiment of the utility model
Figure, it is shown that from power supply on the bank to the energy stream of network of ship.As shown in Figure 2 C, subsidiary engine 2 and the switching of power supply 3 on the bank are seamless
's.Subsidiary engine 2 can remain operational when the connection of power supply 3 is connect with axle generator 11 on the coast the first current transformer 131.Become first
After stream device 131 is synchronous with subsidiary engine 2, subsidiary engine 2 can be closed, being at this moment converted into powering on the bank provides required electric power for ship.
According to arrived bank, there is different voltage available grades to connect for ship.Shaft generator system 1 can be used for bank
It is connected to ship, any onshore power grid can be connected to network of ship.This allow ship can be closed after approaching All hosts and
Subsidiary engine, it means that help to save fuel oil and reduce CO2 emission.
Although the utility model is illustrated and described in detail in attached drawing and foregoing description, these are illustrated and described
It should be considered as illustrative or exemplary rather than restrictive；The utility model is not limited to the disclosed embodiments.This
Field technical staff is understood that in practicing claimed invention by research attached drawing, open and appended claims
And practice other variants of the disclosed embodiments.
In the claims, other elements are not precluded in word " comprising ", and indefinite article "a" or "an" is not arranged
Except multiple.Discrete component or other units can satisfy the function of the multiple projects illustrated in the claims.Only in mutually not phase
Same embodiment is recited in mutually different dependent the only true of certain features, is not meant to that these cannot be used to advantage
The combination of feature.In the case where not departing from spirit and scope, the protection scope of the application is covered in each implementation
Example or any possible combination of each feature being recited in mutually different dependent.
Claims (10)
1. shaft generator system, to DC grid or AC network power supply, which is characterized in that the system includes:
Axle generator；
Excitation current transforming unit；
DC bus connects the axle generator by the excitation current transforming unit, and by concatenated first current transformer and
First switch connects the axle generator；
The battery component for carrying out charge and discharge is fluctuated according to the DC bus-bar voltage, passes through concatenated second switch and the first direct current
Converter is connected on the DC bus；And
Shaft generator machine controller issues logic electric signal to first current transformer, and controls the closure of the first switch
With disconnection.
2. shaft generator system according to claim 1, which is characterized in that the battery component includes battery and control
The battery controller of the second switch closure and disconnection and the battery charging and discharging.
3. shaft generator system according to claim 2, which is characterized in that the battery controller includes:
Voltage detecting circuit；And
PLC；
PLC described in the voltage input that wherein voltage detecting circuit will test.
4. shaft generator system according to claim 3, which is characterized in that the PLC is issued to the second switch
The electric signal of closing or opening.
5. shaft generator system according to claim 1, which is characterized in that first DC converter includes by electricity
Hold, the circuit of IGBT power cell and filter unit composition.
6. shaft generator system according to claim 1, which is characterized in that be connected with third unsteady flow on the DC bus
Device and/or the second DC converter, the third current transformer is to connect AC network, and second DC converter is to even
It connects DC grid or the DC bus is directly connected to DC grid.
7. shaft generator system according to claim 1, which is characterized in that the axle generator is opened with described first
There is the port accessed for bank electricity between pass.
8. ship, which is characterized in that the ship includes:
DC grid and/or AC network；
It is connected to the generator of the DC grid and/or AC network；
Such as shaft generator system as claimed in any one of claims 1 to 7, described in the shaft generator system access
DC grid and/or AC network.
9. ship as claimed in claim 8, which is characterized in that the ship includes subsidiary engine, and the subsidiary engine passes through the 4th unsteady flow
Device is connected to the DC bus.
10. ship as claimed in claim 8, which is characterized in that the generator is connected to described straight by the 5th current transformer
Galvanic electricity net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766888.3U CN208209525U (en) | 2018-05-22 | 2018-05-22 | Shaft generator system and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766888.3U CN208209525U (en) | 2018-05-22 | 2018-05-22 | Shaft generator system and ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208209525U true CN208209525U (en) | 2018-12-07 |
Family
ID=64517033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820766888.3U Active CN208209525U (en) | 2018-05-22 | 2018-05-22 | Shaft generator system and ship |
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| Country | Link |
|---|---|
| CN (1) | CN208209525U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329479A (en) * | 2019-03-25 | 2019-10-15 | 广州文冲船厂有限责任公司 | A kind of ship power supply system and method |
| CN111478307A (en) * | 2020-03-18 | 2020-07-31 | 无锡赛思亿电气科技有限公司 | Ship direct-current networking power system and operation and power optimization control method thereof |
| CN116729582A (en) * | 2022-03-17 | 2023-09-12 | 中国船舶重工集团公司第七一一研究所 | Method and system for selecting type of ship brake resistor of hybrid power system |
-
2018
- 2018-05-22 CN CN201820766888.3U patent/CN208209525U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329479A (en) * | 2019-03-25 | 2019-10-15 | 广州文冲船厂有限责任公司 | A kind of ship power supply system and method |
| CN111478307A (en) * | 2020-03-18 | 2020-07-31 | 无锡赛思亿电气科技有限公司 | Ship direct-current networking power system and operation and power optimization control method thereof |
| WO2021185056A1 (en) * | 2020-03-18 | 2021-09-23 | 无锡赛思亿电气科技有限公司 | Direct current networking power system for waterborne vessel, and operation- and power-optimized control method for same |
| GB2608552A (en) * | 2020-03-18 | 2023-01-04 | Wuxi Silent Electric System Ses Tech Co Ltd | Direct current networking power system for waterborne vessel, and operation-and power-optimized control method for same |
| CN116729582A (en) * | 2022-03-17 | 2023-09-12 | 中国船舶重工集团公司第七一一研究所 | Method and system for selecting type of ship brake resistor of hybrid power system |
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