CN106936130A - Bank electricity access system and its cut-in method based on ship direct current networking - Google Patents
Bank electricity access system and its cut-in method based on ship direct current networking Download PDFInfo
- Publication number
- CN106936130A CN106936130A CN201710179921.2A CN201710179921A CN106936130A CN 106936130 A CN106936130 A CN 106936130A CN 201710179921 A CN201710179921 A CN 201710179921A CN 106936130 A CN106936130 A CN 106936130A
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- China
- Prior art keywords
- ship
- bus
- output end
- daily load
- frequency device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005611 electricity Effects 0.000 title claims abstract description 31
- 230000006855 networking Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000002283 diesel fuel Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J3/00—Driving of auxiliaries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J3/00—Driving of auxiliaries
- B63J2003/001—Driving of auxiliaries characterised by type of power supply, or power transmission, e.g. by using electric power or steam
- B63J2003/002—Driving of auxiliaries characterised by type of power supply, or power transmission, e.g. by using electric power or steam by using electric power
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of bank electricity access system based on ship direct current networking and its cut-in method, solve when ship stops bank, the diesel generating set on ship is stopped, the problem that the cold boot of diesel for existing easily sustains damage.In common DC bus（9）On be connected with ship it is daily load inversion changing frequency device（16）With the daily load transformer of ship（17）, in the daily load transformer of ship（17）Output end on be connected with the daily load of ship（4）；In common DC bus（9）On be connected with the second rectification variable-frequency device（8）, the second rectification variable-frequency device（8）Input be connected with double control switch（7）Output end, double control switch（7）An input on be connected with the second diesel generating set（3）Output end, double control switch（7）Another input on be connected with shore electric power transformer（6）With bank electricity AC power（5）.For the thermal starting of marine diesel generator provides necessary condition.
Description
Technical field
It is more particularly to a kind of based on ship direct current networking electricity the present invention relates to a kind of ship direct current networking electric propulsion system
The bank electricity access system and its cut-in method of power propulsion system.
Background technology
At present, the electric propulsion system of ship is had started to using direct current networking electric propulsion system, and the system is by diesel oil
Generating set, common DC bus, frequency converter and propulsion system composition.Diesel generating set is by diesel engine and with exciter
Asynchronous generator composition, the alternating current that asynchronous generator sends, by after rectification variable-frequency device be direct current networking public direct-current
Bus provides direct current, and the inversion changing frequency device of multichannel is parallel with common DC bus, and each inversion changing frequency device is connected with each
Propulsion electric machine, each propulsion electric machine links together with respective marine propeller.When ship stops bank, on ship
Diesel generating set is stopped, and the electrical equipment on ship is directly switch on power supply on the bank, and electricity is provided by power supply on the bank
Source, now the common DC bus in ship direct current networking electric propulsion system are in power failure state, when ship needs again
During secondary startup, marine diesel generator can only lean on marine air and auxiliary equipment to carry out cold start-up, easily cause diesel oil
Machine is damaged, further, since diesel engine needs to be equipped with air bottle and some other assistant starting equipment, occupies sky limited on ship
Between, and every time start when be required to carry out examination and maintenance to air bottle and auxiliary equipment, there is complex operation and high cost
Problem.
The content of the invention
The invention provides a kind of bank electricity access system based on ship direct current networking and its cut-in method, solve and work as ship
When oceangoing ship stops bank, the diesel generating set on ship is stopped, and the electrical equipment on ship is directly switch to power supply on the bank
On, the diesel generating set for existing takes up room the easy technical problem for sustaining damage of big and cold boot of diesel.
The present invention is to solve above technical problem by the following technical programs；
A kind of bank electricity access system based on ship direct current networking, including the first diesel generating set, the second diesel generating set
And shore electric power, the first diesel generating set is connected by the first rectification variable-frequency device with common DC bus；It is female in public direct-current
Main propulsion motor inverter is connected with line, main propulsion motor is connected with the output end of main propulsion motor inverter, promoted mainly
Main thruster is connected with the output shaft of stepper motor；Side propulsion electric machine inverter, side propulsion are connected with common DC bus
Side propulsion electric machine is connected with the output end of motor inverter, side propeller is connected with the output shaft of side propulsion electric machine；
The daily load inversion changing frequency device of ship is connected with common DC bus, is connected in the output end of the daily load inversion changing frequency device of ship
The daily load transformer of ship is connected to, the daily load of ship is connected with the output end of the daily load transformer of ship；In public affairs
The second rectification variable-frequency device is connected with common DC bus, the input of the second rectification variable-frequency device is connected with the output of double control switch
End, is connected with the output end of the second diesel generating set, another input of double control switch on an input of double control switch
The output end of shore electric power transformer is connected with end, bank electricity alternating current is connected with the input of shore electric power transformer
Source.
A kind of bank electricity cut-in method based on ship direct current networking, comprises the following steps：
The first step, the first diesel generating set are connected by the first rectification variable-frequency device with common DC bus；Main propulsion motor is inverse
Main propulsion motor is connected in the output end for becoming device, main thruster is connected on the output shaft of main propulsion motor；It is female in public direct-current
Connecting side propulsion electric machine inverter on line, connecting side propulsion electric machine in the output end of side propulsion electric machine inverter advances electricity in side
Side propeller is connected on the output shaft of machine；The daily load inversion changing frequency device of ship is connected on common DC bus, ship is daily
Load and the daily load transformer of ship is connected in the output end of inversion changing frequency device, in the output end of the daily load transformer of ship
The connection daily load of ship；The second rectification variable-frequency device, the input of the second rectification variable-frequency device are connected with common DC bus
The output end of double control switch is connected, the output end of the second diesel generating set, dual control are connected on an input of double control switch
The output end of shore electric power transformer is connected on another input of switch, is connected on the input of shore electric power transformer
Bank electricity AC power；
Second step, after ship pulls in shore, keep the first diesel generating set run well, common DC bus be in obtain electric shape
State, the connection of double control switch and the second diesel generating set is disconnected, and double control switch and shore electric power transformer are connected into one
Rise, at this moment, bank electricity AC power passes sequentially through shore electric power transformer and the second rectification variable-frequency device for common DC bus are powered；
3rd step, the operating for stopping the first diesel generating set, the daily load supplying of ship is individually for by bank electricity AC power.
The present invention is not in ship instantaneous power failure phenomenon in load supplying handoff procedure peculiar to vessel, and be ensure that in ship
During pulling in shore, common DC bus are in obtain electricity condition all the time, for the thermal starting of marine diesel generator provides necessary bar
Part.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
A kind of bank electricity access system based on ship direct current networking, including the first diesel generating set 1, the second diesel generation
Unit 3 and shore electric power 5, the first diesel generating set 1 are connected by the first rectification variable-frequency device 2 with common DC bus 9；In public affairs
Main propulsion motor inverter 10 is connected with common DC bus 9, is connected with the output end of main propulsion motor inverter 10 and promoted mainly
Stepper motor 11, is connected with main thruster 12 on the output shaft of main propulsion motor 11；Side is connected with common DC bus 9 to push away
Stepper motor inverter 13, is connected with side propulsion electric machine 14, the propulsion electric machine 14 in side in the output end of side propulsion electric machine inverter 13
Output shaft on be connected with side propeller 15；The daily load inversion changing frequency device 16 of ship, ship are connected with common DC bus 9
The daily load transformer 17 of ship is connected with the output end of the daily load inversion changing frequency device 16 of oceangoing ship, in the daily load transformation of ship
The daily load 4 of ship is connected with the output end of device 17；The second rectification variable-frequency device 8, second are connected with common DC bus 9
The input of rectification variable-frequency device 8 is connected with the output end of double control switch 7, and second is connected with an input of double control switch 7
The output end of diesel generating set 3, is connected with the output end of shore electric power transformer 6 on another input of double control switch 7,
Bank electricity AC power 5 is connected with the input of shore electric power transformer 6.
A kind of bank electricity cut-in method based on ship direct current networking, comprises the following steps：
The first step, the first diesel generating set 1 are connected by the first rectification variable-frequency device 2 with common DC bus 9；Main propulsion motor
Main propulsion motor 11 is connected in the output end of inverter 10, main thruster 12 is connected on the output shaft of main propulsion motor 11；
Connecting side propulsion electric machine inverter 13 on common DC bus 9, connecting side propulsion in the output end of side propulsion electric machine inverter 13
Motor 14, connects side propeller 15 on the output shaft of side propulsion electric machine 14；Ship is connected on common DC bus 9 daily negative
Inversion changing frequency device 16 is carried, the daily load transformer 17 of ship is connected in the output end of the daily load inversion changing frequency device 16 of ship,
The daily load 4 of ship is connected in the output end of the daily load transformer 17 of ship；It is whole second to be connected with common DC bus 9
Stream frequency converter 8, the input of the second rectification variable-frequency device 8 connects the output end of double control switch 7, an input of double control switch 7
The output end of the second diesel generating set 3 of upper connection, connects shore electric power transformer 6 on another input of double control switch 7
Output end, bank electricity AC power 5 is connected on the input of shore electric power transformer 6；
Second step, after ship pulls in shore, keep the first diesel generating set 1 run well, common DC bus 9 be in obtain electric shape
State, the connection of the diesel generating set 3 of double control switch 7 and second is disconnected, and double control switch 7 is connected with shore electric power transformer 6
Together, at this moment, it is female public direct-current that bank electricity AC power 5 passes sequentially through the rectification variable-frequency device 8 of shore electric power transformer 6 and second
Line 9 is powered；
3rd step, the operating for stopping the first diesel generating set 1, are individually for the daily load 4 of ship and supply by bank electricity AC power 5
Electricity.
Bank electricity AC power 5 is connected to the second rectification variable-frequency device 8, second by shore electric power transformer 6 and double control switch 7
Rectification variable-frequency device 8 by AC rectification into after direct current for common DC bus 9 are powered；When the first diesel generating set 1 of startup
When, common DC bus 9 are that the first rectification variable-frequency device 2 provides power supply, and the first rectification variable-frequency device 2 is by common DC bus 9
The translated channel that direct current becomes exchange provides alternating current into the stator winding of the first asynchronous generator, and the alternating current is different first
Air-gap rotating magnetic field is formed between the rotor and stator that walk generator, air-gap rotating magnetic field drives the rotor of the first asynchronous generator
Rotate, the rotor of the first asynchronous generator drives the crankshaft-link rod of the first coaxial diesel engine to rotate, so as to complete the first diesel oil
The thermal starting of machine；After first diesel engine starting, the cylinder of the first diesel engine is started working, and cylinder drives crankshaft-link rod to start to accelerate
Motion, crankshaft-link rod drives the rotor of the first asynchronous generator to accelerate to rotate again, when the rotating speed of the rotor of the first asynchronous generator
After the rotating speed of air-gap rotating magnetic field, the magnetic line of force of the rotor reverse cut air-gap rotating magnetic field of the first asynchronous generator,
Generation current is formed in rotor windings, another turning by AC-to DC that the generation current passes through the first rectification variable-frequency device 2
Change path for common DC bus 9 provide direct current so that common DC bus 9 it is electric, common DC bus 9 it is electric after, and
Become alternating current path back through above-mentioned direct current, for the stator winding of the first asynchronous generator provides exciting current, so as to be the
The startup of one diesel generating set 1 provides thermal starting condition.
Claims (2)
1. a kind of bank electricity access system based on ship direct current networking, including the first diesel generating set（1）, the second diesel generation
Unit（3）And shore electric power（5）, the first diesel generating set（1）It is by the first rectification variable-frequency device（2）With common DC bus
（9）Link together；In common DC bus（9）On be connected with main propulsion motor inverter（10）, main propulsion motor inversion
Device（10）Output end on be connected with main propulsion motor（11）, in main propulsion motor（11）Output shaft on be connected with main thruster
（12）；In common DC bus（9）On be connected with side propulsion electric machine inverter（13）, side propulsion electric machine inverter（13）Output
Side propulsion electric machine is connected with end（14）, in side propulsion electric machine（14）Output shaft on be connected with side propeller（15）；Public
Dc bus（9）On be connected with ship it is daily load inversion changing frequency device（16）, the daily load inversion changing frequency device of ship（16）It is defeated
Go out on end and be connected with the daily load transformer of ship（17）, in the daily load transformer of ship（17）Output end on be connected with ship
The daily load of oceangoing ship（4）；Characterized in that, in common DC bus（9）On be connected with the second rectification variable-frequency device（8）, the second rectification
Frequency converter（8）Input be connected with double control switch（7）Output end, double control switch（7）An input on be connected with
Two diesel generating sets（3）Output end, double control switch（7）Another input on be connected with shore electric power transformer（6）
Output end, in shore electric power transformer（6）Input on be connected with bank electricity AC power（5）.
2. a kind of bank electricity cut-in method based on ship direct current networking, comprises the following steps：
The first step, the first diesel generating set（1）By the first rectification variable-frequency device（2）With common DC bus（9）Connection；Promote mainly
Stepper motor inverter（10）Output end on connect main propulsion motor（11）, in main propulsion motor（11）Output shaft on connect master
Propeller（12）；In common DC bus（9）Upper connecting side propulsion electric machine inverter（13）, side propulsion electric machine inverter（13）'s
Connecting side propulsion electric machine in output end（14）, in side propulsion electric machine（14）Output shaft on connect side propeller（15）；Public
Dc bus（9）The upper daily load inversion changing frequency device of connection ship（16）, the daily load inversion changing frequency device of ship（16）Output
The daily load transformer of ship is connected on end（17）, in the daily load transformer of ship（17）Output end on connect ship it is daily
Load（4）；In common DC bus（9）The second rectification variable-frequency device of upper connection（8）, the second rectification variable-frequency device（8）Input connect
Connect double control switch（7）Output end, the output end of the second diesel generating set 3 is connected on an input of double control switch 7, it is double
Control switch（7）Another input on connect shore electric power transformer（6）Output end, in shore electric power transformer（6）'s
Bank electricity AC power is connected on input（5）；
Second step, after ship pulls in shore, keep the first diesel generating set（1）Run well, common DC bus（9）In
Electricity condition, by double control switch（7）With the second diesel generating set（3）Connection disconnect, by double control switch（7）Become with shore electric power
Depressor（6）Link together, at this moment, bank electricity AC power（5）Pass sequentially through shore electric power transformer（6）With the second rectification variable-frequency
Device（8）It is common DC bus（9）Power supply；
3rd step, the first diesel generating set of stopping（1）Operating, by bank electricity AC power（5）It is individually for the daily load of ship
（4）Power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179921.2A CN106936130A (en) | 2017-03-23 | 2017-03-23 | Bank electricity access system and its cut-in method based on ship direct current networking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179921.2A CN106936130A (en) | 2017-03-23 | 2017-03-23 | Bank electricity access system and its cut-in method based on ship direct current networking |
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| Publication Number | Publication Date |
|---|---|
| CN106936130A true CN106936130A (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710179921.2A Pending CN106936130A (en) | 2017-03-23 | 2017-03-23 | Bank electricity access system and its cut-in method based on ship direct current networking |
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| CN (1) | CN106936130A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109319080A (en) * | 2018-09-13 | 2019-02-12 | 武汉理工大学 | New energy bank electricity power supply landing stage |
| WO2020186936A1 (en) * | 2019-03-20 | 2020-09-24 | 南京南瑞继保电气有限公司 | Flexible access substation and control method therefor |
| CN112644676A (en) * | 2021-01-03 | 2021-04-13 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Ship direct-current networking electric propulsion system |
| CN114079280A (en) * | 2020-08-11 | 2022-02-22 | 中国船舶重工集团公司第七一一研究所 | Power supply device and ship with same |
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| JP2008178228A (en) * | 2007-01-19 | 2008-07-31 | Terasaki Electric Co Ltd | Method and system for supplying power from land to ship |
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| CN103269120A (en) * | 2013-05-16 | 2013-08-28 | 中国船舶重工集团公司第七一二研究所 | Electric propulsion power supply system for pleasure-boat |
| CN204334106U (en) * | 2014-08-12 | 2015-05-13 | 广东江龙船舶制造有限公司 | 380V/220V shore power conversion switch circuit for ship |
| CN106364651A (en) * | 2016-10-10 | 2017-02-01 | 长沙绿航节能科技有限公司 | Comprehensive ship electric propelling system and using method |
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| US20090152945A1 (en) * | 2005-11-28 | 2009-06-18 | Rainer Hartig | Method for Supplying the Electrical On-Board Power Network of Ships With External Energy |
| JP2008178228A (en) * | 2007-01-19 | 2008-07-31 | Terasaki Electric Co Ltd | Method and system for supplying power from land to ship |
| CN102358412A (en) * | 2011-07-28 | 2012-02-22 | 上海海事大学 | Multi-energy-source hybrid ship electric propulsion system and implementation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109319080A (en) * | 2018-09-13 | 2019-02-12 | 武汉理工大学 | New energy bank electricity power supply landing stage |
| CN109319080B (en) * | 2018-09-13 | 2020-11-24 | 武汉理工大学 | Pontoon powered by new energy shore power |
| WO2020186936A1 (en) * | 2019-03-20 | 2020-09-24 | 南京南瑞继保电气有限公司 | Flexible access substation and control method therefor |
| CN114079280A (en) * | 2020-08-11 | 2022-02-22 | 中国船舶重工集团公司第七一一研究所 | Power supply device and ship with same |
| CN112644676A (en) * | 2021-01-03 | 2021-04-13 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Ship direct-current networking electric propulsion system |
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Address after: 030027 131 Heping North Road, wanBerlin District, Taiyuan, Shanxi Applicant after: SHANXI FENXI HEAVY INDUSTRY Co.,Ltd. Applicant after: WUXI SILENT ELECTRIC SYSTEM (SES) TECHNOLOGY Co.,Ltd. Address before: No. 131, Heping North Road, Taiyuan, Shanxi Province, Shanxi Applicant before: SHANXI FENXI HEAVY INDUSTRY Co.,Ltd. Applicant before: BEIJING CSE ELECTRICAL SCIENCE & TECHNOLOGY CO.,LTD. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170707 |