CN106712386B - A kind of multi-electric system generating set - Google Patents
A kind of multi-electric system generating set Download PDFInfo
- Publication number
- CN106712386B CN106712386B CN201710013710.1A CN201710013710A CN106712386B CN 106712386 B CN106712386 B CN 106712386B CN 201710013710 A CN201710013710 A CN 201710013710A CN 106712386 B CN106712386 B CN 106712386B
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- rotary transformer
- rotor
- stator
- phase
- winding
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of multi-electric system generating sets, including prime mover, synchronous generator, main shaft, change gear box, counter drive shaft and rotary transformer, synchronous generator is internally provided with generator unit stator three-phase windings, the input terminal and output end of change gear box are connected with main shaft and counter drive shaft respectively, auxiliary driving the tip of the axis is connected with rotary transformer, rotary transformer includes rotary transformer rotor, rotary transformer stator and slip ring, rotor three-phase winding and three-phase stator winding are respectively arranged on rotary transformer rotor and rotary transformer stator, three-phase stator winding is connected with generator unit stator three-phase windings respectively by switching switch, multiple rotary transformer outlet terminals being connected with rotor three-phase winding are provided on slip ring；Prime mover, synchronous generator, rotary transformer are placed in one by the present invention, the variable-frequency variable-voltage function of generating set can be achieved, eliminate complicated, expensive power electronics converter plant, it is a kind of economic, reliable variable-frequency variable-voltage electricity generation system, it can be applied in multi-electric system power supply system, such as harbour bank electricity, generating ship.
Description
Technical field
The invention belongs to generating set technical fields, and in particular to a kind of multi-electric system generating set.
Background technique
Diesel oil or LNG generating set generally only export a kind of voltage and frequency at present, must just make for different demands
Meet the requirement of client with the unit of different voltages and frequency.
Especially in the occasion for needing variable-frequency variable-voltage to generate electricity, user has to be equipped with two sets of units or changes winding connection
At high cost with AVR controller, inconvenient and safety cannot guarantee that.
So needing a kind of generator that can be compatible with a variety of electricity systems in the occasion for needing variable-frequency variable-voltage to generate electricity.
Summary of the invention
It is an object of the invention to deficiencies according to prior art, design a kind of multi-electric system generating set.
The technical solution adopted by the present invention to solve the technical problems is: a kind of multi-electric system generating set, including prime mover,
The main shaft and change gear box of prime mover output end are set, are provided with synchronous generator in the middle part of the main shaft
Machine, the synchronous generator are internally provided with generator unit stator three-phase windings, the main transmission the tip of the axis and gear teeth
The input terminal of roller box is connected, and the output end of the change gear box is provided with counter drive shaft, the end of the counter drive shaft
End is connected with rotary transformer, and the rotary transformer includes the rotary transformer rotor being connected with counter drive shaft, setting
Rotary transformer stator in the middle part of rotary transformer and the slip ring that rotary transformer rotor tail portion is arranged in, the rotation become
Rotor three-phase winding and three-phase stator winding, the stator three-phase are respectively arranged on depressor rotor and rotary transformer stator
Winding is connected with generator unit stator three-phase windings respectively by switching switch, and multiple rotation transformations are provided on the slip ring
Device outlet terminal, the rotary transformer outlet terminal are connected by slip ring with rotor three-phase winding.
A kind of multi-electric system generating set, it is different that every phase stator winding of three-phase stator winding is provided with no-load voltage ratio
Tap.
A kind of multi-electric system generating set, three-phase stator winding are input winding, the rotor three-phase winding
To export winding.
A kind of multi-electric system generating set is provided with arrangement of clutch, the transmission gear in change gear box
The output end of case and the junction of counter drive shaft are provided with locker.
A kind of multi-electric system generating set is respectively arranged on rotary transformer rotor and rotary transformer stator
Rotor slot and stator slot, the rotor three-phase winding and three-phase stator winding are separately positioned on rotor slot and stator line
In slot.
The beneficial effects of the present invention are:
The present invention prime mover, synchronous generator, rotary transformer be placed in one, it can be achieved that generating set variable-frequency variable-voltage
Function eliminates complicated, expensive power electronics converter plant, is a kind of economic, reliable variable-frequency variable-voltage electricity generation system, can answer
For in multi-electric system power supply system, such as harbour bank electricity, generating ship.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure.
Each appended drawing reference are as follows: 1-prime mover, 2-synchronous generators, 3-main shafts, 4-change gear boxs, 5-is secondary
Transmission shaft, 6-rotary transformer rotors, 7-rotary transformer stators, 8-slip rings, 9-rotary transformer outlet terminals, 10-
Switching switch.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Shown in referring to Fig.1, the invention discloses a kind of multi-electric system generating sets, including prime mover 1, setting are in prime mover 1
The main shaft 3 and change gear box 4 of output end, the middle part of the main shaft 3 are provided with synchronous generator 2, the original
Motivation 1 is coaxially mechanically coupled with synchronous generator 2 by main shaft 3, and the synchronous generator 2 is internally provided with generator
The end of three-phase stator winding, the main shaft 3 is connected with the input terminal of change gear box 4, the transmission gear
The output end of case 4 is provided with counter drive shaft 5, and the end of the counter drive shaft 5 is connected with rotary transformer, counter drive shaft 5 with
Rotary transformer rotor is coaxially mechanically coupled, and the rotary transformer includes the rotary transformer being connected with counter drive shaft 5
Rotor 6, the rotary transformer stator 7 being arranged in the middle part of rotary transformer and the slip ring that 6 tail portion of rotary transformer rotor is set
8, be respectively arranged on the rotary transformer rotor 6 and rotary transformer stator 7 rotor three-phase winding and stator three-phase around
Group, the rotary transformer stator side winding are input winding, and rotor-side winding is output winding, the three-phase stator winding
It is connected respectively with generator unit stator three-phase windings by switching switch 10, multiple rotation transformations is provided on the slip ring 8
Device outlet terminal 9, the rotary transformer outlet terminal 9 are connected by slip ring 8 with rotor three-phase winding.
Every phase stator winding of the three-phase stator winding is provided with the different tap of no-load voltage ratio to change output voltage
Amplitude, change the work of rotary transformer by the switching selection of the switch 10 different generator unit stator three-phase windings tap of connection
Make no-load voltage ratio and output voltage, rotor drives rotation by prime mover 1 to adjust output voltage frequency, and output port is through slip ring and rotation
The connection of 6 winding of transformer rotor.
The three-phase stator winding is input winding, and the rotor three-phase winding is output winding.
Arrangement of clutch, the output end and counter drive shaft of the change gear box 4 are provided in the change gear box 4
5 junction is provided with locker, can latch rotary transformer rotor when not needing frequency conversion motionless.
It is respectively arranged with rotor slot and stator slot on the rotary transformer rotor 6 and rotary transformer stator 7,
The rotor three-phase winding and three-phase stator winding are separately positioned in rotor slot and stator slot.
Prime mover 1 drives main shaft 3 to drive rotary transformer by change gear box 4, counter drive shaft 5 while rotation
Rotor 6 rotates, and changing rotor speed can be changed rotor output voltage frequency, if prime mover 1 drives main transmission with 1000RPM revolving speed
Axis 3 rotates, and driving synchronous generator 2 generates electricity, and 2 voltage rating of synchronous generator and frequency are 690V/50Hz, and main shaft 3 passes through
Change gear box 4 drives counter drive shaft 5 to rotate, if the no-load voltage ratio of change gear box 4 is 1000:300, counter drive shaft 5 is with 300RPM
That is 50r/s drives rotor rotation；According to the principle of rotating electric machine: revolving speednAnd stator frequencyf 1, rotor frequencyf 2And number of pole-pairsp's
Relationship meets:
I.e.
It knows to change rotor speednI.e. changeable rotor output voltage frequencyf 2。
Main shaft 3 is driven to rotate with 1000RPM revolving speed in use, setting prime mover 1, driving synchronous generator 2 generates electricity, together
It walks 2 voltage rating of generator and frequency is 690V/50Hz.
Main shaft 3 drives counter drive shaft 5 to rotate through change gear box 4, if the no-load voltage ratio of change gear box 4 is 1000:
300, counter drive shaft 5 drives rotary transformer rotor 6 to rotate with 300RPM, that is, 50r/s.
Rotary transformer includes rotary transformer stator 7, rotary transformer rotor 6, slip ring 8 and is placed in stator slot
Three-phase stator winding and the rotor three-phase winding that is placed in rotor slot.Three-phase stator winding set the different tap of no-load voltage ratio so as to
Change the amplitude of output voltage, rotary transformer rotor 6 drives rotation by prime mover 1 to adjust output voltage frequency, and rotation becomes
Depressor outlet terminal 9 is connect through slip ring 8 with rotor three-phase winding.
According toI.e., as n=- 50r/s, p=2, f2=60Hz.Adjust change gear box 4
No-load voltage ratio, thus it is possible to vary the output voltage frequency of rotary transformer rotor 6；When needing to export 50Hz frequency electricity, by speed change
4 mechanical trip of gear-box, and it is using clamp device that rotary transformer rotor 6 is fixed, then and output frequency will not change.
The output terminal of generator unit stator three-phase windings switches switch 10 with the input terminal of rotary transformer and is connected,
Switch different tap groups by switching switch 10 to reach pressure regulation purpose.
Prime mover 1, synchronous generator 2, rotary transformer are placed in one, it can be achieved that the frequency conversion of generating set becomes by the present invention
Function is pressed, complicated, expensive power electronics converter plant is eliminated, is a kind of economic, reliable variable-frequency variable-voltage electricity generation system, it can
Applied in multi-electric system power supply system, such as harbour bank electricity, generating ship.
The above-described embodiments merely illustrate the principles and effects of the present invention, and the embodiment that part uses, for
For those skilled in the art, without departing from the concept of the premise of the invention, can also make it is several deformation and
It improves, these are all within the scope of protection of the present invention.
Claims (4)
1. a kind of multi-electric system generating set, it is characterised in that: including prime mover (1), setting prime mover (1) output end main biography
Moving axis (3) and change gear box (4) are provided with synchronous generator (2), the synchronization in the middle part of the main shaft (3)
Generator (2) is internally provided with generator unit stator three-phase windings, the end and change gear box (4) of the main shaft (3)
Input terminal be connected, the output end of the change gear box (4) is provided with counter drive shaft (5), the counter drive shaft (5)
End be connected with rotary transformer, the rotary transformer includes that the rotary transformer being connected with counter drive shaft (5) turns
Sub (6), the rotary transformer stator (7) being arranged in the middle part of rotary transformer and setting are in rotary transformer rotor (6) tail portion
Be respectively arranged on slip ring (8), the rotary transformer rotor (6) and rotary transformer stator (7) rotor three-phase winding and
Every phase stator winding of three-phase stator winding, the three-phase stator winding is provided with the different tap of no-load voltage ratio, the stator
Three-phase windings are connected with generator unit stator three-phase windings respectively by switching switch (10), are connected by switching switch (10) selection
Different taps is connect to change the work no-load voltage ratio of rotary transformer and output voltage, rotary transformer rotor (6) is by prime mover (1)
It drives rotation to adjust output voltage frequency, multiple rotary transformer outlet terminals (9), institute is provided on the slip ring (8)
The rotary transformer outlet terminal (9) stated is connected by slip ring (8) with rotor three-phase winding.
2. a kind of multi-electric system generating set according to claim 1, which is characterized in that the three-phase stator winding is defeated
Enter winding, the rotor three-phase winding is output winding.
3. a kind of multi-electric system generating set according to claim 2, which is characterized in that in the change gear box (4)
It is provided with arrangement of clutch, the output end of the change gear box (4) and the junction of counter drive shaft (5) are provided with lock dress
It sets.
4. a kind of multi-electric system generating set according to claim 3, which is characterized in that the rotary transformer rotor
(6) and on rotary transformer stator (7) rotor slot and stator slot, the rotor three-phase winding and stator are respectively arranged with
Three-phase windings are separately positioned in rotor slot and stator slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710013710.1A CN106712386B (en) | 2017-01-09 | 2017-01-09 | A kind of multi-electric system generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710013710.1A CN106712386B (en) | 2017-01-09 | 2017-01-09 | A kind of multi-electric system generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106712386A CN106712386A (en) | 2017-05-24 |
| CN106712386B true CN106712386B (en) | 2019-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710013710.1A Active CN106712386B (en) | 2017-01-09 | 2017-01-09 | A kind of multi-electric system generating set |
Country Status (1)
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| CN (1) | CN106712386B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109656219B (en) * | 2019-01-01 | 2021-04-06 | 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） | Distributed ship propulsion centralized control device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5770909A (en) * | 1996-12-13 | 1998-06-23 | Rosen Motors, L.P. | Wound rotor synchronous motor-generator and field control system therefor |
| CN101725476A (en) * | 2008-10-28 | 2010-06-09 | 马杰 | Variable speed constant frequency permanent magnetic speed-adjusting wind power generator |
| JP2013198258A (en) * | 2012-03-19 | 2013-09-30 | Denso Corp | Exciter of rotary electric machine |
| CN202978667U (en) * | 2012-12-13 | 2013-06-05 | 中国矿业大学 | Variable-frequency transformer |
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2017
- 2017-01-09 CN CN201710013710.1A patent/CN106712386B/en active Active
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| Publication number | Publication date |
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| CN106712386A (en) | 2017-05-24 |
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