CN106240781B - A kind of ship power distribution system of two-shipper cabin three-level dynamic positioning - Google Patents
A kind of ship power distribution system of two-shipper cabin three-level dynamic positioning Download PDFInfo
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- CN106240781B CN106240781B CN201610635269.6A CN201610635269A CN106240781B CN 106240781 B CN106240781 B CN 106240781B CN 201610635269 A CN201610635269 A CN 201610635269A CN 106240781 B CN106240781 B CN 106240781B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of ship power distribution system of two-shipper cabin three-level dynamic positioning, ship power distribution system is respectively provided with a power station in forward engine room, rear cabin, and ship is provided with odd number propeller, including a telescopic propeller；Telescopic propeller is arranged in flexible tugboat, and two power stations power to telescopic propeller simultaneously；Bow side push away I and right stern push away and powered by cabin, left stern, which pushes away, to be pushed away II with bow side and is powered by another cabin, telescopic propeller provides power supply by two cabins respectively using two sets of phase-shifting transformers, two sets of phase-shifting transformers, the secondary side of two sets of phase-shifting transformers respectively supplies electricity to two sets of rectification units, the output of four sets of rectification units is connected on public DC master row, that is the DC link of frequency converter, then by inversion unit, supply electricity to the propulsion electric machine of telescopic propeller.
Description
Technical field
The present invention relates to a kind of ship power distribution system of two-shipper cabin three-level dynamic positioning, belongs to ship power distribution systems technology neck
Domain.
Background technology
For two-shipper cabin Liang Ge power stations to odd number propeller, the ship that such as 5 propellers are powered, inevitable that
One cabin, i.e. a redundancy group, to the situation of 3 propeller power supplies；When the redundancy group is intake or caught fire, i.e., three-level is moved
Power positions the single failure of ship most serious, and the fail result of most serious is to lose 3 propellers.
In order to solve this problem, referring to Fig. 8, general three-level dynamic positioning ship (can stretch one propeller of bow
Contracting pushes away) to be powered respectively by two cabins, i.e., two redundancy groups are powered respectively, and such a cabin loses because catching fire or intaking
Afterwards, another cabin can be switched to be powered flexible push away, after can realizing that maximum single failure occurs by switching, only
2 propellers are lost, still there are 3 propellers to be used for dynamic positioning.But so, flexible push away has of short duration stopping, switching
After the completion of be again started up, cause reliability poor, and for some classification societies, propeller is reset and pushed away again after stopping
It is the interruption that cannot receive to enter device, can not be included in dynamic positioning capacity calculation.
The conventional scheme for generally solving this problem be set up one it is flexible push away, that is, set two it is flexible push away, wherein one is stretched
Contracting pushes away is powered by forward engine room, and another flexible push away is powered by rear cabin.So after a cabin is caught fire or intake, bow still has
One side pushes away to stretch with one and pushed away, to meet the requirement of the dynamic positioning ability needed for operation..But set up a propeller equipment
Cost, installation cost are much higher, and noise vibration can be bigger.Such as：Increasing the telescopic propellers of a set of 2200kW needs to increase
About 7,000,000 yuans of the equipment investment added；The ship that bow sets 4 propellers is shaken with noise than 3 propellers of bow
Vibrations and noise are big, in order to meet ship comfortableness ship symbol COMF (NOISE 3), COMF (VIB 3) requirement, it is necessary to
More measures are taken to solve the problems, such as vibrations and noise；And more one of bow propeller, then the master in boat length direction
Yardstick will increase.
The content of the invention
The technical problem to be solved in the invention is：The ship power distribution system of existing two-shipper cabin three-level dynamic positioning, stretches
Contracting is pushed away and powered respectively by two cabins, after such a cabin is because catching fire or intaking and lose, can be switched to another machine
Cabin is powered to flexible push away, but so, flexible push away has of short duration stopping, being again started up after the completion of switching, causes reliable
Property it is poor, and for some classification societies, it is the interruption that cannot receive that propeller resets propeller again after stopping,
Dynamic positioning capacity calculation can not be included in；If taking the scheme that a propeller solves of setting up, cost is significantly increased, noise
Vibration significantly increases, and the principal dimensions in boat length direction will also increase.
The present invention is intended to provide a kind of cost is relatively low, economical stronger, hull changes smaller, the higher two-shipper cabin of reliability
The ship power distribution system of three-level dynamic positioning, overcomes the above technical problem.
The present invention takes following technical scheme：
A kind of ship power distribution system of two-shipper cabin three-level dynamic positioning, ship power distribution system are respectively set in forward engine room, rear cabin
There is a power station, ship is provided with odd number propeller, including a telescopic propeller；Telescopic propeller, which is arranged on, to be stretched
In contracting tugboat, two power stations power to telescopic propeller simultaneously.
Further, the quantity of the odd number propeller is 5；Bow side push away I and right stern push away and powered by cabin, it is left
Stern, which pushes away, to be pushed away II with bow side and is powered by another cabin, and telescopic propeller is using two sets of phase-shifting transformers, two sets of phase-shifting transformers
Power supply is provided by two cabins respectively, the secondary side of two sets of phase-shifting transformers respectively supplies electricity to two sets of rectification units, four sets of rectification lists
The output of member is connected on public DC master row DC-Bus, i.e. the DC link of frequency converter, then by inversion unit, supply electricity to
The propulsion electric machine of telescopic propeller.
Further, the propulsion electric machine cooling blower for telescopic propeller service and control are arranged on flexible with UPS
In tugboat, using two sets of isolating transformers, two sets of isolating transformers provide power supply, two sets of isolating transformers by two cabins respectively
Secondary side respectively supplies electricity to a set of rectification unit, and the output of two sets of rectification units is connected to the public DC master row DC- of frequency converter
On Bus, then through inversion unit, the cooling blower and control UPS of propulsion electric machine are supplied electricity to.
Further, propulsion electric machine, cooling blower and the control for telescopic propeller service are arranged on flexible with UPS
In tugboat, the DC master row is by some inversion units arranged side by side respectively to the flexible propulsion electric machine pushed away, cooling blower, control
Powered with UPS；Two sets of phase-shifting transformers, four sets of rectification units are arranged within flexible tugboat.
Further, propulsion electric machine, cooling blower and the control for telescopic propeller service are arranged on flexible with UPS
In tugboat, the DC master row by some inversion units arranged side by side respectively to it is flexible push away, propulsion electric machine, cooling blower, control
Powered with UPS；Two sets of phase-shifting transformers, four sets of rectification units are arranged on outside flexible tugboat.
The beneficial effects of the present invention are：
1) two power stations are solved the problems, such as to odd number propeller uninterrupted power supply.
2) requirement of classification society's three-level dynamic positioning of some particular/special requirements is disclosure satisfy that, dynamic positioning ability meter can be included in
Calculate.
Even if 3) after a cabin is caught fire or intake, telescopic propeller will not also power off, and reliability is high.
4) while solving problem, without setting up a propeller, cost is not increased, noise vibration does not also increase, ship
The principal dimensions of length direction does not also lengthen, easy to implement；Load a set of propeller onto ship less compared with the prior art, release as oceangoing ship it is empty
Between, the investment of equipment is reduced, reduces vibroseis and noise source.
5) cost is relatively low, and economy is stronger, and hull change is smaller, and reliability is higher.
Brief description of the drawings
Fig. 1 is the schematic diagram of the ship power distribution system embodiment one of two-shipper cabin three-level dynamic positioning of the present invention.
Fig. 2 is the enlarged drawing of Fig. 1 top halfs.
Fig. 3 is the enlarged drawing of Fig. 1 the latter half.
Fig. 4 is the schematic diagram of the ship power distribution system embodiment two of two-shipper cabin three-level dynamic positioning of the present invention.
Fig. 5 is the flexible partial enlarged drawings pushed away of Fig. 4.
Fig. 6 is the schematic diagram of the ship power distribution system embodiment three of two-shipper cabin three-level dynamic positioning of the present invention.
Fig. 7 is the flexible partial enlarged drawings pushed away of Fig. 6.
Fig. 8 is Fig. 6 partial enlarged drawing.
Embodiment
The present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one：
Referring to Fig. 1-Fig. 3, a kind of ship power distribution system of two-shipper cabin three-level dynamic positioning, ship power distribution system is in preceding machine
Cabin, rear cabin are respectively provided with a power station, and ship is provided with odd number propeller, including a telescopic propeller；It is telescopic
Propeller is arranged in flexible tugboat, and two power stations power to telescopic propeller simultaneously.The quantity of the odd number propeller
For 5；Bow side push away I and right stern push away and powered by cabin, left stern, which pushes away, to be pushed away II with bow side and is powered by another cabin, adjustable pushing
Enter device using two sets phase-shifting transformers, two sets of phase-shifting transformers respectively by two cabins offer power supplys, two sets of phase-shifting transformers
Secondary side respectively supplies electricity to two sets of rectification units, and the output of four sets of rectification units is connected on public DC master row DC-Bus, i.e.,
The DC link of frequency converter, then by inversion unit, supply electricity to the propulsion electric machine of telescopic propeller.Taken for telescopic propeller
The propulsion electric machine cooling blower of business and control are arranged in flexible tugboat with UPS, and using two sets of isolating transformers, two sets of isolation become
Depressor provides power supply by two cabins respectively, and two sets of isolating transformer secondary sides respectively supply electricity to a set of rectification unit, two sets of rectifications
The output of unit is connected on the public DC master row DC-Bus of frequency converter, then through inversion unit, supplies electricity to propulsion electric machine
Cooling blower and control UPS.
The main power source and accessory power supply of so telescopic propeller are by two cabins while powered, in hot redundancy shape
State, after a cabin dead electricity, another cabin without switching, feed incessantly to telescopic propeller electric energy.Realize certain
A little classification societies on redundancy will be based on operation equipment and do not allow the requirement for resetting propeller, telescopic propeller can be with
Dynamic positioning capacity calculation is included in after a cabin is lost.
Embodiment two：
Referring to Fig. 4-Fig. 5, a kind of ship power distribution system of two-shipper cabin three-level dynamic positioning, ship power distribution system is in preceding machine
Cabin, rear cabin are respectively provided with a power station, and ship is provided with odd number propeller, including a telescopic propeller；It is telescopic
Propeller is arranged in flexible tugboat, and two power stations power to telescopic propeller simultaneously.For pushing away for telescopic propeller service
The cooling blower of stepper motor and control are arranged in flexible tugboat with UPS, and the DC master row passes through some inversion lists arranged side by side
Member is respectively to power supplies such as the flexible propulsion electric machine pushed away, cooling blower, control UPS；Two sets of phase-shifting transformers, four sets of rectifications
Unit is arranged within flexible tugboat.
This structure type can equally realize the function in embodiment one, while can save two sets in embodiment one
Isolating transformer.
Embodiment three：
What embodiment one, two was introduced successfully solves some classification society's three-levels without the switching uninterrupted technology of supplying power with double circuit
Dynamic positioning require redundancy should be based on operation equipment and do not allow switching the problem of, still, at the same introduce one newly ask
Topic：It is commonly connected.The power supply of i.e. two different redundancy groups is powered to same equipment simultaneously, and the equipment is total to as different redundancy groups
The equipment enjoyed, when the shared equipment breaks down, may influence the equipment of different redundancy groups that is connected in the equipment and
The normal operation of system.Commonly connected fault incidence may exceed the coverage of the maximum single failure of design.
Telescopic propeller supply power with double circuit to be formed it is direct commonly connected on the DC master row DC-Bus of frequency converter, when
During DC master row short circuit, forward engine room panel 1MSB, rear cabin panel 2MSB and its feed equipment may influenceed just
Often operation.
The single failure of three-level dynamic positioning ship needs to consider a cabin because catching fire or intaking and lose completely, such as
When the telescopic propeller cabin of fruit catches fire, telescopic propeller is may result in from front and rear cabin high-tension panel feed cable because of fire
Calamity and in succession short circuit, so as to cause front and rear high-tension panel to produce short trouble in succession, this is an even more serious public company
Connect failure.
Telescopic propeller cabin short trouble can cause front and rear two power station line voltage rapid drawdowns of cabin, the failure of most serious
Two power station voltages can be caused to be down to about 0V.How to ensure during voltage dip, dynamic positioning dynamical system, impeller system
And the accessory system energy normal work for dynamic positioning service, to meet some classification society's three-level dynamic positioning system requirements
Redundancy should the requirement based on the equipment of operation, here it is voltage dip crossing technology.
Scheme is as follows used by embodiment three：
Referring to Fig. 6-Fig. 7, a kind of ship power distribution system of two-shipper cabin three-level dynamic positioning, ship power distribution system is in preceding machine
Cabin, rear cabin are respectively provided with a power station, and ship is provided with odd number propeller, including a telescopic propeller；It is telescopic
Propeller is arranged in flexible tugboat, and two power stations power to telescopic propeller simultaneously.The quantity of the odd number propeller
For 5；Bow side push away I and right stern push away and powered by cabin, left stern, which pushes away, to be pushed away II with bow side and is powered by another cabin, adjustable pushing
Enter device using two sets phase-shifting transformers, two sets of phase-shifting transformers respectively by two cabins offer power supplys, two sets of phase-shifting transformers
Secondary side respectively supplies electricity to two sets of rectification units, and the output of four sets of rectification units is connected on public DC master row DC-Bus, i.e.,
The DC link of frequency converter, then by inversion unit, supply electricity to the propulsion electric machine of telescopic propeller.
Propulsion electric machine, cooling blower and control for telescopic propeller service are arranged in flexible tugboat with UPS, described
DC master row is supplied the flexible propulsion electric machine pushed away, cooling blower, control UPS etc. respectively by some inversion units arranged side by side
Electricity；Two sets of phase-shifting transformers, four sets of rectification units are arranged at outside flexible tugboat.It is public that the present embodiment realizes reply
During the failures such as junction occurs catching fire, intake, short circuit, the reliability that voltage dip passes through is further increased.Therefore, embodiment
Third, the embodiment that the present invention is optimal.
It is further described below：
When telescopic the short circuit of propeller inlet wire high-tension cable or frequency converter DC master row short circuit, high-tension panel protection is single
Member and frequency converter protection location detection fault time are respectively less than 20 milliseconds, and the vacuum circuit breaker actuation time on high-tension panel is big
About 50 milliseconds, i.e. about 70 milliseconds of fault detect and break, power system recovery to normal working voltage need about 650
Millisecond, so duration of voltage collapse is about 710 milliseconds, relation was carried out when voltage dip ride-through capability designs by 1 second
The design of system.
The performance of voltage dip and power station short supply interruption is line voltage bust, protects the design of system to need to screen
Voltage dip and power station short supply interruption.System is protected not act within voltage dip duration, and power station short supply interruption
Then corresponding protection system should act, and start corresponding power interruption recovering program.Voltage dip crossing technology is led in design
Temporally principle to distinguish voltage dip and power station power-off：It is voltage dip within 1 second, was powered off more than 1 second for power station.
Frequency converter voltage rapid drawdown is passed through：Using AC-DC-AC voltage frequency converter, direct current component is provided with under-voltage protection and mistake
Pressure protection.When frequency converter detects line under-voltage, the output pulse of frequency converter will be stopped, to maintain the voltage of direct current component,
It, which is held time, is far longer than voltage dip and passes through required 1 second, and frequency converter to power-positioning control system is " accurate in the meantime
It is standby " signal is to maintain always.If power network short supply interruption, direct current component voltage continues to decline, then frequency converter under-voltage protection list
Metaaction, the primary cut-out on panel is disconnected.
Primary cut-out voltage dip passes through：Generator breaker is provided with under-voltage protection unit on high-tension panel, will owe
Pressure protection location actuation time is set as that delay acts for 1.8~2 seconds, to avoid duration of voltage collapse.
Low-voltage circuit breaker voltage dip passes through：All breaker settings provided with device for under-voltage releasing equipment on low-tension distribution board are prolonged
When 1 second act.
Auxiliary equipment starter voltage dip passes through：The control electricity of contactor, relay in the starter of conventional design
Source is usually to be obtained from main power source, and during main power voltage rapid drawdown, contactor, relay can thread off.Meet that voltage dip passes through
It is required that then need to supply electricity to the auxiliary equipment control power supply power supply related to dynamic positioning provided with uninterrupted power source；And it should be provided with
Power-off protection unit, to meet the requirement of main class under-voltage protection.
Control device voltage dip passes through：Frequency converter controller, propeller control unit, high voltage power distribution on-board controller,
Power management system, power-positioning control system, dynamic positioning position reference system, dynamic positioning sensing system etc. are required to
Powered by special uninterrupted power source, to avoid voltage dip from causing control system logic error.
Claims (4)
- A kind of 1. ship power distribution system of two-shipper cabin three-level dynamic positioning, it is characterised in that：Ship power distribution system is respectively provided with a power station in forward engine room, rear cabin, and ship is provided with odd number propeller, including one Individual telescopic propeller；Telescopic propeller is arranged in flexible tugboat, and two power stations power to telescopic propeller simultaneously；The quantity of the odd number propeller is 5；Bow side push away I and right stern push away and powered by cabin, left stern pushes away to be pushed away with bow side II is powered by another cabin, and telescopic propeller is using two sets of phase-shifting transformers, two sets of phase-shifting transformers respectively by two machines Cabin provides power supply, and the secondary side of two sets of phase-shifting transformers respectively supplies electricity to two sets of rectification units, the output connection of four sets of rectification units On to public DC master row (DC-Bus), i.e. the DC link of frequency converter, then by inversion unit, supply electricity to telescopic propulsion The propulsion electric machine of device.
- 2. the ship power distribution system of two-shipper cabin three-level dynamic positioning as claimed in claim 1, it is characterised in that：For adjustable pushing The propulsion electric machine cooling blower and control for entering device service are arranged in flexible tugboat with UPS, using two sets of isolating transformers, two sets Isolating transformer provides power supplys by two cabins respectively, and two sets of isolating transformer secondary sides respectively supply electricity to a set of rectification unit, and two The output of set rectification unit is connected on the public DC master row (DC-Bus) of frequency converter, then through inversion unit, supplies electricity to push away The cooling blower and control UPS of stepper motor.
- 3. the ship power distribution system of two-shipper cabin three-level dynamic positioning as claimed in claim 1, it is characterised in that：For adjustable pushing The propulsion electric machine, cooling blower and control for entering device service are arranged in flexible tugboat with UPS, if the DC master row passes through dry doubling The inversion unit of row is powered to the flexible propulsion electric machine pushed away, cooling blower, control with UPS respectively；Two sets of phase-shifting transformers, Four sets of rectification units are arranged within flexible tugboat.
- 4. the ship power distribution system of two-shipper cabin three-level dynamic positioning as claimed in claim 1, it is characterised in that：For adjustable pushing The propulsion electric machine, cooling blower and control for entering device service are arranged in flexible tugboat with UPS, if the DC master row passes through dry doubling The inversion unit of row is powered to the flexible propulsion electric machine pushed away, cooling blower, control with UPS respectively；Two sets of phase-shifting transformers, Four sets of rectification units are arranged at outside flexible tugboat.
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| CN201610635269.6A CN106240781B (en) | 2016-08-05 | 2016-08-05 | A kind of ship power distribution system of two-shipper cabin three-level dynamic positioning |
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| CN106809363A (en) * | 2016-01-28 | 2017-06-09 | 上海冠图电气科技有限公司 | Ship polymorphic type energy management system and energy management method |
| CN106849330B (en) * | 2017-02-14 | 2023-12-22 | 江苏省镇江船厂（集团）有限公司 | Gate control circuit of high-power GTO ship alternating-current power supply device |
| CN110893900B (en) * | 2018-09-13 | 2021-06-25 | 中国船舶重工集团公司第七一一研究所 | Ship electric propulsion system and ship |
| CN109752647A (en) * | 2018-12-20 | 2019-05-14 | 大连中远海运重工有限公司 | Ocean engineering vehicle DP3 busbar interconnection switch closes row's operation test method |
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| EP4183676A1 (en) * | 2010-10-14 | 2023-05-24 | GE Energy Power Conversion Technology Ltd | Marine propulsion systems |
| ES2706420T3 (en) * | 2014-04-10 | 2019-03-28 | Ge Energy Power Conversion Technology Ltd | Energy distribution system |
| CN104290896A (en) * | 2014-06-25 | 2015-01-21 | 大连中远船务工程有限公司 | Drilling ship three-level dynamic positioning propeller arrangement system |
| KR20160023106A (en) * | 2014-08-21 | 2016-03-03 | 대우조선해양 주식회사 | Module Type Switchboard System for Ship |
| CN204424901U (en) * | 2015-01-15 | 2015-06-24 | 上海中远船务工程有限公司 | Drill ship DP3 closed loop PMS electric propulsion system |
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