CN202320762U - Electric system for marine shaft generator - Google Patents
Electric system for marine shaft generator Download PDFInfo
- Publication number
- CN202320762U CN202320762U CN2011204703737U CN201120470373U CN202320762U CN 202320762 U CN202320762 U CN 202320762U CN 2011204703737 U CN2011204703737 U CN 2011204703737U CN 201120470373 U CN201120470373 U CN 201120470373U CN 202320762 U CN202320762 U CN 202320762U
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- China
- Prior art keywords
- shaft
- cage induction
- induction motor
- output shaft
- brushless
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Abstract
The utility model discloses an electric system for a marine shaft generator, so as to solve the problem of starting difficulty of the shaft generator serving as a motor. The electric system comprises a ship main shaft propeller, wherein the ship main shaft propeller is connected with a gearbox; a power auxiliary shaft is arranged on the gearbox, and is connected with one end of a hydraulic clutch; the other end of the hydraulic clutch is in mechanical connection with an output shaft at one end of a brushless alternating current rotor synchronous motor (1); an output shaft at the other end of the brushless alternating current rotor synchronous motor (1) is in mechanical connection with the output shaft of a squirrel cage induction motor (2) through a coupler (3); the stator winding of the squirrel cage induction motor (2) is electrically connected with an excitation controller (4); and the brushless alternating current rotor synchronous motor (1), the squirrel cage induction motor (2) and the excitation controller (4) are all fixedly arranged on a base (5). The electric system has the advantages of low investment, small occupied space, simple structure, and low requirement on a ship power station.
Description
Technical field
The utility model relate to use on a kind of boats and ships by propeller-driven shaft generator system, particularly a kind ofly can be used as the shaft generator system that electrical motor is used.
Background technology
During operating modes such as marine main engine is less at load carrying ability, economical cruise or lowsteaming, often apparatus capacity can not be given full play to, and efficient is very low, has caused energy dissipation, for energy-conservation and raise the efficiency, the shaft generator that utilizes the rich energy generating of main frame has just been arranged.And marine main engine often has only one or two, in case et out of order, the lighter can make the ship power configuration unbalance, and weight person can make boats and ships run out of steam, and shipping navigation safety property is caused have a strong impact on.Therefore, the same domain technical personnel is attempted to move as electrical motor with shaft generator, for boats and ships provide power; But because boats and ships main shaft propulsion system rotor inertia is very big; And friction torque is also very big, and when being used as electrical motor to it, startup has difficulties; Also exist whole system to need starting capacity very big if directly start, the problem that causes equipment cost to increase with actuating motor.
Summary of the invention
The utility model provides a kind of shaft generator power driven system peculiar to vessel, has solved the difficult problem of startup that shaft generator is used as electrical motor.
The utility model overcomes the above problems through following scheme:
A kind of shaft generator power driven system peculiar to vessel; Comprise boats and ships main shaft screw propeller; Boats and ships main shaft screw propeller is connected with gear case, and gear case is provided with the power countershaft, and an end of power countershaft and hydraulic clutch links together; One end output shaft mechanical connection of the other end of hydraulic clutch and brushless ac rotor synchronous dynamo; The other end output shaft of brushless ac rotor synchronous dynamo is mechanically coupled together through the output shaft of coupler and cage induction motor, and the stator winding of cage induction motor is electrically connected with excitation controller, and brushless ac rotor synchronous dynamo, cage induction motor and excitation controller all are fixedly installed on the base.
Described cage induction motor is that number of poles is the asynchronous dynamo of sextupole.
The utility model has been realized the conversion of shaft generator to motoring, and has realized the steady switching of generating state to motoring condition.Native system have investment low, take up room for a short time, simple in structure, the marine electrical power plant is required low advantage.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Specific embodiment
A kind of shaft generator power driven system peculiar to vessel; Comprise boats and ships main shaft screw propeller; Boats and ships main shaft screw propeller is connected with gear case, and gear case is provided with the power countershaft, and an end of power countershaft and hydraulic clutch links together; One end output shaft mechanical connection of the other end of hydraulic clutch and brushless ac rotor synchronous dynamo 1; The other end output shaft of brushless ac rotor synchronous dynamo 1 is mechanically coupled together with the output shaft of cage induction motor 2 through coupler 3, and the stator winding of cage induction motor 2 is electrically connected with excitation controller 4, and brushless ac rotor synchronous dynamo 1, cage induction motor 2 and excitation controller 4 all are fixedly installed on the base 5.
Described cage induction motor 2 is the asynchronous dynamo of sextupole for number of poles.
The utility model is applicable to the two oar propulsion systems of bending moment oar two-shipper, and two main frames are promptly arranged on the ship, and two main shaft twin screw through power countershaft of gear case output, link with axle band system through hydraulic clutch on each main shaft.Because screw propeller is the bending moment oar, spindle speed is with system's rotating speed all constant with axle, and therefore the axle band master of system motor can adopt brushless synchronous machine.
In order to solve the starting problem of brushless synchronous machine under electronic operating mode, disposed cage induction motor 2 as actuating motor, actuating motor is used for starting by special inverter supply, compared to traditional reduced voltage starting and frequency converter starting.
In addition; Because main shaft propulsion system rotor inertia is very big and friction torque is very big, directly starting whole system with actuating motor needs starting capacity very big, causes equipment cost very big; For reducing the actuating motor capacity; Native system adopts the substep start mode, promptly at first throws off axis system and only comes starting shaft band system with frequency converter and actuating motor, treats that axle is with system's starting under no load to be incorporated into the power networks after the completion; The axis system input is connected with flexible beat with hydraulic clutch again, reached the purpose of final drive screw propeller.
The utility model is when motoring condition, and marine main engine breaks off earlier with gear case and being connected, and is supplied power by the network of ship system; Excitation controller 4 control cage induction motors 2 drive the rotor rotation of brushless ac rotor synchronous dynamo 1; After being close to synchronous speed, by control system control, brushless ac rotor synchronous dynamo 1 is accomplished starting under no load and is incorporated into the power networks; Simultaneously, cage induction motor 2 quits work.Afterwards, brushless ac rotor synchronous dynamo 1 finally drives screw propeller through hydraulic clutch and the flexible beat of gear case.
Claims (2)
1. shaft generator power driven system peculiar to vessel; Comprise boats and ships main shaft screw propeller; Boats and ships main shaft screw propeller is connected with gear case; Gear case is provided with the power countershaft, and an end of power countershaft and hydraulic clutch links together, an end output shaft mechanical connection of the other end of hydraulic clutch and brushless ac rotor synchronous dynamo (1); It is characterized in that; The other end output shaft of brushless ac rotor synchronous dynamo (1) is mechanically coupled together with the output shaft of cage induction motor (2) through coupler (3), and the stator winding of cage induction motor (2) is electrically connected with excitation controller (4), and brushless ac rotor synchronous dynamo (1), cage induction motor (2) and excitation controller (4) all are fixedly installed on the base (5).
2. a kind of shaft generator power driven system peculiar to vessel according to claim 1 is characterized in that described cage induction motor (2) is the asynchronous dynamo of sextupole for number of poles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204703737U CN202320762U (en) | 2011-11-23 | 2011-11-23 | Electric system for marine shaft generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204703737U CN202320762U (en) | 2011-11-23 | 2011-11-23 | Electric system for marine shaft generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202320762U true CN202320762U (en) | 2012-07-11 |
Family
ID=46432752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204703737U Expired - Fee Related CN202320762U (en) | 2011-11-23 | 2011-11-23 | Electric system for marine shaft generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202320762U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523190A (en) * | 2013-11-05 | 2014-01-22 | 宁夏新航能源环境科技有限公司 | Energy-saving ship propulsion device |
| WO2015040529A3 (en) * | 2013-09-19 | 2015-06-11 | Marelli Motori S.P.A. | Hybrid operating synchronous electrical machine |
| CN109474124A (en) * | 2018-12-21 | 2019-03-15 | 广东力源工程技术有限公司 | An electric device and its control method |
-
2011
- 2011-11-23 CN CN2011204703737U patent/CN202320762U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015040529A3 (en) * | 2013-09-19 | 2015-06-11 | Marelli Motori S.P.A. | Hybrid operating synchronous electrical machine |
| CN103523190A (en) * | 2013-11-05 | 2014-01-22 | 宁夏新航能源环境科技有限公司 | Energy-saving ship propulsion device |
| CN109474124A (en) * | 2018-12-21 | 2019-03-15 | 广东力源工程技术有限公司 | An electric device and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20191123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |