CN206977285U - Shaft-Generator based on asynchronous machine self-excitation - Google Patents
Shaft-Generator based on asynchronous machine self-excitation Download PDFInfo
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- CN206977285U CN206977285U CN201720775010.1U CN201720775010U CN206977285U CN 206977285 U CN206977285 U CN 206977285U CN 201720775010 U CN201720775010 U CN 201720775010U CN 206977285 U CN206977285 U CN 206977285U
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- 238000004804 winding Methods 0.000 claims abstract description 22
- 230000005284 excitation Effects 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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Abstract
The utility model discloses a kind of Shaft-Generator based on asynchronous machine self-excitation, solves the problems, such as that asynchronous generator in itself can not complete independently generator operation without excitation ability in spot ship Shaft-Generator.Including main promotion diesel engine（1）, gear-box（2）, marine propeller（3）With the daily load of ship（7）, in gear-box（2）On be connected with asynchronous generator（4）, in asynchronous generator（4）Armature spindle on be provided with permanent magnet pole, in asynchronous generator（4）Stator on Exciting Windings for Transverse Differential Protection is set（10）, Exciting Windings for Transverse Differential Protection（10）Pass through rectifier（11）With four-quadrant frequency converter（5）Preliminary filling port connection, asynchronous generator（4）Stator winding and four-quadrant frequency converter（5）Pusher side output end link together, four-quadrant frequency converter（5）Net side output end pass through axle belt fuser（6）With the daily load of ship（7）Connection.The main promotion diesel engine of ship is set to always work on optimal power efficiency point.
Description
Technical field
The present invention relates to a kind of ship power propulsion system, more particularly to a kind of ship based on asynchronous generator self-excitation
Shaft-Generator.
Background technology
In traditional ship power system, marine propuision system and the daily load of ship are that independent diesel oil is respectively adopted
Machine provides energy, and specifically, propulsion system directly drives propeller, the daily load of ship using diesel engine by gear-box
Power supply diesel generating set for being made up of another diesel engine and Synchronous generator provide, two sets of diesel-driven generators
The defects of fuel oil utilization rate is low, and oil consumption is high be present, frequent cold start-up also directly shortens often in frequent cold start in group
The service life of diesel engine.In order to overcome these defects, just there is another new Shaft-Generator, the i.e. tooth of diesel engine
Roller box not only connects propeller, while is also connected with a motor, and under the driving of frequency converter, this motor both may operate in hair
Motor status, electric motor state can also be operated in, this motor is typically chosen in brushless synchronous machine, the advantage of this scheme
It is that brushless synchronous machine has very superior power generation performance, shortcoming is that traditional brushless synchronous machine does not have electronic startup
Function, be not suitable for doing motor use, in order to overcome the defect, also have and change brushless synchronous machine into asynchronous machine, it is this
The advantage of scheme is that asynchronous machine has superior startability, is well suited for doing motor running, but has the disadvantage that asynchronous
Motor can not independently realize excitation, if asynchronous machine does generator operation, it is necessary to provide excitation to generator unit stator by frequency converter
Electric current establishes excitation system, could be completed by the excitation power supply for being equipped with extra, and the outfit of excitation power supply adds equipment
Input, the occupancy in space is increased, the problem of complicated maintenance is inconvenient be present.
The content of the invention
The invention provides a kind of Shaft-Generator based on asynchronous machine self-excitation, solves spot ship axle band hair
In electric system asynchronous generator in itself without excitation ability can not complete independently generator operation, therefore without extra excitation power supply
When, it is difficult to it is provided simultaneously with the technical problem to generate electricity with electronic two kinds of functions.
The present general inventive concept is：In ship Shaft-Generator, main promotion diesel engine by gear-box with it is asynchronous
Generator together, permanent magnet pole is set on the armature spindle of asynchronous generator by axis connection, in the stator of asynchronous generator
Upper setting Exciting Windings for Transverse Differential Protection, after gear-box drives asynchronous generator to rotate, Exciting Windings for Transverse Differential Protection can be to produce voltage, caused voltage
Frequency converter being limited for four phases after rectifier and preliminary filling electric current being provided, four phases limit frequency converter provides after obtaining electric current for asynchronous generator
Startup exciting current, asynchronous generator can be conveyed to the daily load of ship to be generated electricity.
A kind of Shaft-Generator based on asynchronous machine self-excitation, including main promotion diesel engine, gear-box, Ship Propeling
The daily load diesel generating set of device, ship and the daily load of ship, main promotion diesel engine connect Ship Propeling by gear-box
Device, the daily load diesel generating set of ship are linked together by the daily load of main circuit breaker and ship, on gear-box also
Asynchronous generator is connected with, permanent magnet pole is provided with the armature spindle of asynchronous generator, is set on the stator of asynchronous generator
Exciting Windings for Transverse Differential Protection is put, Exciting Windings for Transverse Differential Protection is connected on the preliminary filling port of four-quadrant frequency converter by rectifier, the stator of asynchronous generator
The pusher side output end of winding and four-quadrant frequency converter links together, and the net side output end of four-quadrant frequency converter passes through the open circuit of axle band
Device links together with the daily load of ship.
Exciting Windings for Transverse Differential Protection is wound around on the shell of asynchronous generator；Four-quadrant frequency converter has three input/output ports,
It is the stator winding of side port, net side port and preliminary filling port, wherein side port connection asynchronous generator respectively, process is whole
Stream, by main energy conversion into constant DC voltage, then inversion, is converted into the output of constant frequency and voltage, passes through net
Side ports connection load；The loop formed from side port to net side port turns into major loop, is responsible for main energy stream, middle
The process of rectification and inversion is passed through；This major loop and common four-quadrant frequency converter are identicals, and preliminary filling port passes through whole
Stream device links together with Exciting Windings for Transverse Differential Protection, and this loop belongs to subsidiary loop, is additionally added outside four-quadrant frequency converter.
The present invention builds a permanent magnet generator system on asynchronous generator, and is applied in ship Shaft-Generator,
Asynchronous generator itself is solved without excitation ability, it is impossible to be provided simultaneously with the technical problem to generate electricity with electronic two kinds of functions, work as ship
When main promotion diesel engine need not be operated under full load condition, unnecessary mechanical energy can be exported to ship by asynchronous generator
The daily electric loading of oceangoing ship, the number of starts of the daily load diesel generating set of ship so can be not only reduced, ship can also be made
The main promotion diesel engine of oceangoing ship is always worked on optimal power efficiency point, improves fuel oil utilization rate, realizes the effect of energy-conservation.Conversely
, can be by the daily load diesel generating set of ship for the daily load of ship when main promotion diesel engine breaks down
By frequency converter and asynchronous generator it is gear-box conveying machinery energy while power supply, so as to drive marine propeller to keep normal
Working condition.
Brief description of the drawings
Fig. 1 is the system structure diagram of the present invention；
Fig. 2 is structural representation of the present invention under generating state in parallel；
Fig. 3 is structural representation of the present invention under independent generating state；
Fig. 4 is structural representation of the present invention under advanced state in parallel；
Fig. 5 is structural representation of the present invention under traditional mode state；
Fig. 6 is structural representation of the present invention under emergency rating.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of Shaft-Generator based on asynchronous machine self-excitation, including main promotion diesel engine 1, gear
The daily load diesel generating set 9 of case 2, marine propeller 3, ship and the daily load 7 of ship, main promotion diesel engine 1 passes through tooth
Roller box 2 connects marine propeller 3, and the daily load diesel generating set 9 of ship is connected by the daily load 7 of main circuit breaker 8 and ship
It is connected together.Asynchronous generator 4 is also associated with gear-box 2, permanent magnet magnetic is provided with the armature spindle of asynchronous generator 4
Pole, sets Exciting Windings for Transverse Differential Protection 10 on the stator of asynchronous generator 4, and Exciting Windings for Transverse Differential Protection 10 is connected to four-quadrant frequency conversion by rectifier 11
On the preliminary filling port of device 5, the stator winding of asynchronous generator 4 links together with the pusher side output end of four-quadrant frequency converter 5, and four
The net side output end of quadrant frequency converter 5 is linked together by axle belt fuser 6 and the daily load 7 of ship.
As shown in Fig. 2 under traditional mode state, main circuit breaker 8 closes, and axle belt fuser 6 disconnects, marine propeller 3 by
Main promotion diesel engine 1 drives, and the daily load diesel generating set 9 of ship is the daily power supply of load 7 of ship.
As shown in figure 3, when main promotion diesel engine 1 has power redundancy, Shaft-Generator can be to be operated in hair in parallel
Under electricity condition, now axle belt fuser 6 is closed, main promotion diesel engine 1 not only drives marine propeller 3 to work, while will be more
Remaining mechanical energy is transported to asynchronous generator 4 by gear-box 2.When the rotor of asynchronous generator 4 rotates, in asynchronous generator 4
Permanent magnet on armature spindle is simultaneously rotated and cuts the permanent magnetism winding 10 on the stator of asynchronous generator 4, permanent magnetism winding 10
To produce voltage, voltage after the rectification of rectifier 11 after be connected to the preliminary filling port of four-quadrant frequency converter 5, become for four-quadrant
Frequency device 5 provides preliminary filling electric current, and then four-quadrant frequency converter 5 is again that asynchronous generator 4 provides exciting current by pusher side output end,
Asynchronous generator 4 can start to produce voltage to initially enter generator mode, and caused voltage passes through four-quadrant frequency converter 5
Pusher side output end is transported to four-quadrant frequency converter 5, then frequency and width as caused by four-quadrant frequency converter 5 by asynchronous generator 4
The photovoltaic conversion that value all changes is exported into all constant voltage of frequency and amplitude and by net side output port, by axle belt fuser
After 6 and the daily load diesel generating set 9 of ship is together the daily power supply of load 7 of ship.
As shown in figure 4, when the main power redundancy of promotion diesel engine 1 is more, Shaft-Generator can be independent to be operated in
Under generating state, axle belt fuser 6 can be now closed, disconnects main circuit breaker 8, closes the daily load diesel generating set of ship
9, promotion diesel engine 1 main first drives marine propeller 3 to work, while mechanical energy is transported into asynchronous generating by gear-box 2
Machine 4, drives the rotation of the rotor of asynchronous generator 4, and the permanent magnet on the armature spindle of asynchronous generator 4 is simultaneously rotated and cut asynchronous
Permanent magnetism winding 10 on the stator of generator 4, permanent magnetism winding 10 can be to produce voltage, after voltage is after the rectification of rectifier 11
The preliminary filling port of four-quadrant frequency converter 5 is connected to, provides preliminary filling electric current for four-quadrant frequency converter 5, then four-quadrant frequency converter 5 is again
It is that asynchronous generator 4 provides exciting current by pusher side output end, asynchronous generator 4 can be opened with initially entering generator mode
Begin to produce voltage, caused voltage is transported to four-quadrant frequency converter 5, Ran Houyou by the pusher side output end of four-quadrant frequency converter 5
Four-quadrant frequency converter 5 is all constant into frequency and amplitude by the photovoltaic conversion that frequency and amplitude caused by asynchronous generator 4 all change
Voltage and exported by net side output port, after axle belt fuser 6 for ship it is daily load 7 power supply.By promoting mainly into diesel oil
Machine 1 is simultaneously marine propeller 3 and the daily power supply of load 7 of ship, and main promotion diesel engine 1 can be operated in higher in this case
Power efficiency point on, effectively reduce system oil consumption.
As shown in figure 5, when energy needed for marine propeller 3 is more, can be equal by axle belt fuser 6 and main circuit breaker 8
Closure, the daily load diesel generating set 9 of ship can be become electricity by four-quadrant while the power supply of load 7 daily for ship
The net side port of frequency device 5 is transported to the main circuit of four-quadrant frequency converter 5, by four-quadrant frequency converter 5 inversion and rectification after by
The side port output of four-quadrant frequency converter 5, powers for asynchronous generator 4, asynchronous generator 4 is operated in electric motor state,
Then asynchronous generator 4 is the conveying machinery energy of gear-box 2, so realize ship it is daily load diesel generating set 9 with promote mainly into
Diesel engine 1 is powered for marine propeller 3 together, and now Shaft-Generator is just operated in advanced state in parallel.
Can not be that system normal power supply just enters emergency rating as shown in fig. 6, when main promotion diesel engine 1 breaks down,
Now axle belt fuser 6 and main circuit breaker 8 close, and the daily load diesel generating set 9 of ship supplies for the daily load 7 of ship
Electricity can be transported to the main circuit of four-quadrant frequency converter 5 by the net side port of four-quadrant frequency converter 5 while electric, by four-quadrant
The inversion and rectification for limiting frequency converter 5 are exported by the side port of four-quadrant frequency converter 5 afterwards, are powered, are made different for asynchronous generator 4
Step generator 4 is operated in electric motor state, and then asynchronous generator 4 is the conveying machinery energy of gear-box 2, and gear-box 2 drives ship
The normal work of propeller 3.
Claims (2)
1. a kind of Shaft-Generator based on asynchronous machine self-excitation, including main promotion diesel engine（1）, gear-box（2）, ship
Propeller（3）, the daily load diesel generating set of ship（9）With the daily load of ship（7）, main promotion diesel engine（1）Pass through tooth
Roller box（2）With marine propeller（3）It is mechanically coupled together, the daily load diesel generating set of ship（9）Pass through main circuit breaker
（8）With the daily load of ship（7）Link together, it is characterised in that in gear-box（2）On be connected with asynchronous generator（4）,
Asynchronous generator（4）Armature spindle on be provided with permanent magnet pole, in asynchronous generator（4）Stator on Exciting Windings for Transverse Differential Protection is set
（10）, Exciting Windings for Transverse Differential Protection（10）Pass through rectifier（11）With four-quadrant frequency converter（5）Preliminary filling port link together, asynchronous generating
Machine（4）Stator winding and four-quadrant frequency converter（5）Pusher side output end link together, four-quadrant frequency converter（5）Net side
Output end passes through axle belt fuser（6）With the daily load of ship（7）Link together.
A kind of 2. Shaft-Generator based on asynchronous machine self-excitation according to claim 1, it is characterised in that excitation
Winding（10）It is wound around asynchronous generator（4）Shell on.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720775010.1U CN206977285U (en) | 2017-06-29 | 2017-06-29 | Shaft-Generator based on asynchronous machine self-excitation |
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| CN201720775010.1U CN206977285U (en) | 2017-06-29 | 2017-06-29 | Shaft-Generator based on asynchronous machine self-excitation |
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| CN206977285U true CN206977285U (en) | 2018-02-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233520A (en) * | 2019-08-08 | 2019-09-13 | 上海雄程海洋工程股份有限公司 | The preliminary filling source circuit of ship direct current networking and its control method of system and the two |
-
2017
- 2017-06-29 CN CN201720775010.1U patent/CN206977285U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233520A (en) * | 2019-08-08 | 2019-09-13 | 上海雄程海洋工程股份有限公司 | The preliminary filling source circuit of ship direct current networking and its control method of system and the two |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 030027 131 Heping North Road, wanBerlin District, Taiyuan, Shanxi Co-patentee after: WUXI SILENT ELECTRIC SYSTEM (SES) TECHNOLOGY Co.,Ltd. Patentee after: SHANXI FENXI HEAVY INDUSTRY Co.,Ltd. Address before: No. 131, Heping North Road, Taiyuan, Shanxi Province, Shanxi Co-patentee before: BEIJING CSE ELECTRICAL SCIENCE & TECHNOLOGY CO.,LTD. Patentee before: SHANXI FENXI HEAVY INDUSTRY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 030027 131 Heping North Road, wanBerlin District, Taiyuan, Shanxi Patentee after: China State Shipbuilding Corporation Fenxi Heavy Industry Co.,Ltd. Country or region after: Zhong Guo Patentee after: China Shipbuilding Saisiyi (Wuxi) Electrical Technology Co.,Ltd. Address before: 030027 131 Heping North Road, wanBerlin District, Taiyuan, Shanxi Patentee before: SHANXI FENXI HEAVY INDUSTRY Co.,Ltd. Country or region before: Zhong Guo Patentee before: WUXI SILENT ELECTRIC SYSTEM (SES) TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |