CN217999935U - Speed regulating system of sealed fan and wind power generation system - Google Patents
Speed regulating system of sealed fan and wind power generation system Download PDFInfo
- Publication number
- CN217999935U CN217999935U CN202222299540.7U CN202222299540U CN217999935U CN 217999935 U CN217999935 U CN 217999935U CN 202222299540 U CN202222299540 U CN 202222299540U CN 217999935 U CN217999935 U CN 217999935U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- cabinet
- speed
- driving motor
- magnet coupling
- Prior art date
- 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.)
- Active
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 21
- 238000010248 power generation Methods 0.000 title abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 60
- 238000010168 coupling process Methods 0.000 claims abstract description 60
- 238000005859 coupling reaction Methods 0.000 claims abstract description 60
- 238000004804 winding Methods 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 239000004020 conductor Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
Images
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model provides a speed governing system and wind power generation system of sealed fan relates to the wind power generation field. The speed regulating system of the sealed fan comprises a driving motor, a winding type permanent magnet coupling speed regulator, a load mechanism, a variable frequency transformer, a control cabinet and a distributed control system, wherein the input end of the winding type permanent magnet coupling speed regulator is connected with the driving motor, the output end of the winding type permanent magnet coupling speed regulator is connected with the load mechanism, the variable frequency transformer is simultaneously connected with the winding type permanent magnet coupling speed regulator and the control cabinet, the load mechanism is in signal connection with the control cabinet, the control cabinet is connected with the distributed control system to feed back a ready signal to the distributed control system, and the distributed control system is connected with the driving motor. The utility model discloses an install winding formula permanent magnet coupling speed regulator additional between driving motor and load mechanism and carry out the speed governing, have certain feasibility, security and economic nature. Meanwhile, the adjustment is convenient, the device is applicable to various working conditions, and the universality is good.
Description
Technical Field
The utility model relates to a wind power generation field particularly, relates to a speed governing system and wind power generation system of sealed fan.
Background
The Huaneng Yueyang power plant #4 unit sealing fan runs in a mode of 'one driving two plus power frequency bypass' of a frequency converter, the rated power of a motor is 315KW, the rated voltage is 6KV, the rated current is 36A, the rated rotating speed is 2930r/min, and a motor manufacturer: shenyang Fenghua Motor Co. Along with the aging of the internal devices of the frequency converter, the reliability of the high-voltage frequency converter is gradually reduced, the stability is reduced, and the economy of the high-voltage frequency converter is gradually deteriorated. In addition, because the three-phase asynchronous machine of field usage is YKK series motor, when adopting the drive of high-voltage inverter, contains higher harmonic in the electric current of converter output, can aggravate asynchronous motor's insulating ageing, makes the life-span of motor reduce, stability descends.
In view of this, the utility model discloses it is special.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a speed governing system and wind power generation system of sealed fan, it drives through increasing winding formula permanent magnetism coupling speed regulator, has certain feasibility, security and economic nature.
The embodiment of the utility model is realized like this:
in a first aspect, the utility model provides a speed governing system of sealed fan, it includes driving motor, winding formula permanent magnet coupling speed regulator, load mechanism, variable frequency transformer, switch board and distributed control system, winding formula permanent magnet coupling speed regulator's input with driving motor connects, winding formula permanent magnet coupling speed regulator's output with load mechanism connects, variable frequency transformer simultaneously with winding formula permanent magnet coupling speed regulator with the switch board is connected, load mechanism with switch board signal connection, the switch board with distributed control system connects with the ready signal of feedback extremely distributed control system, distributed control system with driving motor connects.
In an optional embodiment, the winding type permanent magnet coupling speed regulator comprises a conductor rotor, a speed regulating mechanism and a permanent magnet rotor, wherein the conductor rotor is connected with an output shaft of the driving motor, the permanent magnet rotor is connected with an input shaft of the load mechanism, and the speed regulating mechanism is arranged between the conductor rotor and the permanent magnet rotor and used for regulating the meshing area between the conductor rotor and the permanent magnet rotor.
In an optional implementation manner, the control cabinet includes a resistance cabinet, a starting cabinet and a speed regulation cabinet, the starting cabinet is connected with the winding type permanent magnet coupling speed regulator through the frequency conversion transformer, the speed regulation cabinet is connected with the resistance cabinet, and the resistance cabinet is connected with the winding type permanent magnet coupling speed regulator.
In an optional embodiment, the control cabinet further includes a feedback cabinet, the feedback cabinet is connected to the distributed control system, the feedback cabinet is connected to the speed regulation cabinet, and the feedback cabinet is further connected to the load mechanism through a signal.
In an optional embodiment, the sealing fan further comprises a denitration power distribution chamber, and the control cabinet is placed in the denitration power distribution chamber.
In an optional embodiment, a power line and a signal line are connected to the driving motor, and the distributed control system and the driving motor are connected through the signal line.
In an alternative embodiment, the load mechanism is a sealed fan.
In a second aspect, the present invention provides a wind power system comprising a speed regulation system of a sealed fan according to any of the preceding embodiments.
The embodiment of the utility model provides a beneficial effect is:
the utility model provides a speed governing system of sealed fan carries out the speed governing through installing winding formula permanent magnet coupling speed regulator additional between driving motor and load mechanism, changes original variable frequency speed regulator's speed governing mode, and winding formula permanent magnet coupling speed regulator carries out the speed governing and can synthesize power saving performance height 2% ~ 4% under heavy load small-scale speed governing operating mode, and the comprehensive efficiency still is more than 96% under the speed governing operating mode on a large scale at light load, has good flexibility and reliability simultaneously. And the winding type permanent magnet coupling speed regulator is adopted for driving, so that certain feasibility, safety and economy are achieved. Simultaneously, adopt switch board and variable frequency transformer to adjust winding formula permanent magnet coupling speed regulator's running state in this application, it is convenient to adjust, applicable in multiple operating mode, and the commonality is good.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a speed control system of a sealed fan according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a control cabinet control winding type permanent magnet coupling speed regulator in a speed regulating system of a sealed fan according to an embodiment of the present invention.
An icon: 100-sealing a speed regulating system of the fan; 110-a drive motor; 120-winding permanent magnet coupling speed regulator; 121-a conductor rotor; 122-a speed regulating mechanism; 123-permanent magnet rotor; 130-a load mechanism; 140-a variable frequency transformer; 150-a control cabinet; 151-resistance cabinet; 152-starting the cabinet; 153-speed regulating cabinet; 154-a feedback cabinet; 160-distributed control system.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First embodiment
Referring to fig. 1 and fig. 2, the present embodiment provides a speed control system 100 of a sealed fan, which includes a driving motor 110, a winding-type permanent magnet coupling speed regulator 120, a load mechanism 130, a variable frequency transformer 140, a control cabinet 150, and a distributed control system 160.
The driving motor 110 is used as a driving mechanism of the speed regulating system 100 of the sealed fan, and is used for driving the loading mechanism 130 to rotate. In this embodiment, the load mechanism 130 is a sealed fan, and it should be understood that in other application fields, the load mechanism 130 may also be in other structures, and the speed regulating system in this embodiment may still be used for speed regulation.
In this embodiment, the driving motor 110 is connected to a power line and a signal line, and the distributed control system 160 is connected to the driving motor 110 via the signal line. Because the rated power of the driving motor 110 is 315KW, the rated voltage is 6KV, the rated current is 36A, and the rated rotating speed is 2930r/min when the driving motor 110 runs, the winding type permanent magnet coupling speed regulator 120 is adopted to regulate the rotating speed of the driving motor 110 in the application, and further the speed regulation effect is realized. The input end of the winding type permanent magnet coupling speed regulator 120 is connected with the driving motor 110, and the output end of the winding type permanent magnet coupling speed regulator 120 is connected with the load mechanism 130, so that the output rotating speed of the driving motor 110 is adjusted to better control the rotating speed of the load mechanism 130.
Specifically, in the present embodiment, the winding-type permanent magnet coupling speed regulator 120 includes a conductor rotor 121, a speed regulating mechanism 122 and a permanent magnet rotor 123, the conductor rotor 121 is connected to an output shaft of the driving motor 110, the permanent magnet rotor 123 is connected to an input shaft of the load mechanism 130, and the speed regulating mechanism 122 is disposed between the conductor rotor 121 and the permanent magnet rotor 123 for regulating a meshing area between the conductor rotor 121 and the permanent magnet rotor 123. In this embodiment, the winding-type permanent magnet coupling speed regulator 120 can adjust the output rotation speed of the driving motor 110, so as to control the rotation speed of the load mechanism 130 conveniently. The winding type permanent magnet coupling speed regulator 120 is applied to a medium-high power, medium-high voltage motor dragging centrifugal load system, and compared with a current widely used variable frequency speed regulator: the comprehensive power saving performance is improved by 2-4% under the heavy-load small-range speed regulation working condition, the comprehensive efficiency is still more than 96% under the light-load large-range speed regulation working condition, and meanwhile, the comprehensive power saving device has good flexibility and reliability. And the winding type permanent magnet coupling speed regulator 120 is adopted for driving, so that the feasibility, safety and economy are realized.
Further, in this embodiment, the control cabinet 150 is used to adjust the operating state of the winding-type permanent magnet coupling speed regulator 120, the variable frequency transformer 140 is connected to the winding-type permanent magnet coupling speed regulator 120 and the control cabinet 150 at the same time, the load mechanism 130 is in signal connection with the control cabinet 150, the control cabinet 150 is connected to the distributed control system 160 to feed back the ready signal to the distributed control system 160, and the distributed control system 160 is connected to the driving motor 110.
Specifically, the control cabinet 150 includes a start cabinet 152, a governor cabinet 153, a resistor cabinet 151, and a feedback cabinet 154.
The starting cabinet 152 is used for driving the winding type permanent magnet coupling speed regulator 120 to operate, and preferably, the starting cabinet 152 is connected with the winding type permanent magnet coupling speed regulator 120 through the variable frequency transformer 140.
The speed regulation cabinet 153 is used for regulating the speed of the winding type permanent magnet coupling speed regulator 120, and the specific regulation mode is that the speed regulation cabinet 153 is connected with the resistor cabinet 151, the resistor cabinet 151 is connected with the winding type permanent magnet coupling speed regulator 120, and the resistor cabinet 151 is used for putting different resistors under different working conditions, so as to regulate the rotating speed of the winding type permanent magnet coupling speed regulator 120.
The feedback cabinet 154 is used for feeding back signals, the feedback cabinet 154 is connected with the distributed control system 160, the feedback cabinet 154 is connected with the speed regulation cabinet 153, and the feedback cabinet 154 is in signal connection with the load mechanism 130. The feedback cabinet 154 can feed back the ready signal to the distributed control system 160, and the distributed control system 160 receives the ready signal to drive the driving motor 110 in this embodiment to operate. Meanwhile, the feedback cabinet 154 can also feed back the rotation speed of the load mechanism 130 to the regulation cabinet, so as to regulate the rotation speed of the winding-type permanent magnet coupling speed regulator 120 in time.
Further, speed control system 100 of sealed fan still includes the denitration switch board room, and switch board 150 is placed in the denitration switch board room, and the denitration switch board room is the conventional configuration in the power plant, in this embodiment, sets up switch board 150 in the denitration switch board room, can realize unifying the regulation to switch board 150, and operating personnel is more convenient.
Since the present embodiment is improved based on the driving motion of the original sealing fan by using the frequency converter, a certain construction is required so that the winding-type permanent magnet coupling speed regulator 120 can be installed between the driving motor 110 and the load mechanism 130.
The specific construction scheme is as follows: the construction scheme is as follows:
a winding type permanent magnet coupling speed regulator 120 is additionally arranged between a sealed fan and a driving motor 110 of a #4 unit 4A, an original foundation is lengthened, the driving motor 110 moves backwards for a short distance, the driving motor 110 reaches a proper shaft end distance after moving to a required position, a conductor rotor 121 and a speed regulating mechanism 122 of the winding type permanent magnet speed regulator are connected to an output shaft of the driving motor 110, a permanent magnet rotor 123 is connected to an input shaft of a load mechanism 130, a power line and a signal line are connected to the driving motor 110, 6KV high voltage and signal cable laying work is carried out, a control cabinet 150 is placed in a 380V denitration distribution room of a #4 boiler, the winding type permanent magnet coupling speed regulator 120 is installed, and debugging and commissioning are carried out.
Debugging the scheme:
1. a feedback cabinet 154 in the control cabinet 150 electrically outputs a ready signal to a distributed control system 160 (DCS), the distributed control system 160 controls the driving motor 110 to start and operate, a starting cabinet 152 of the control cabinet 150 remotely controls the winding type permanent magnet coupling speed regulator 120 to be put into operation, the output duty ratio is adjusted, the load speed is stabilized by 50%, the system operation is stable, and the vibration conditions of the body and the motor meet the requirements (stable operation is 1 hour; motor axial direction, motor radial direction, magnetic coupling input axial direction, magnetic coupling input radial direction, magnetic coupling output axial direction and magnetic coupling output radial direction);
2. accelerating according to a speed gradient of 5%, requiring stable system operation and meeting the requirements of the vibration conditions of the body and the motor, and recording operation parameters (each point is stable for 10 minutes);
3. the system is stable in the maximum working condition required by a user and runs for a long time (required to be stable for 6 hours);
4. different resistors are put into the resistor cabinet 151 under different working conditions, and the resistor cabinet runs for a long time (the stable running time of each stage of resistor is required to be more than 1 hour);
5. and controlling the winding type permanent magnet coupling speed regulator 120 to stop, and after the winding type permanent magnet coupling speed regulator 120 stops, stopping the driving motor 110 and recovering the switch. Installing a direct connecting pin (1 hour);
6. the outlet valve is opened to start the drive motor 110 (stable operation for 4 hours; motor axial direction, motor radial direction, magnetic coupling input axial direction, magnetic coupling input radial direction, magnetic coupling output axial direction, magnetic coupling output radial direction).
7. And completing debugging.
Furthermore, the utility model also provides a wind power generation system, its speed control system 100 including above-mentioned sealed fan.
To sum up, the utility model provides a speed governing system 100 of sealed fan carries out the speed governing through install winding formula permanent magnet coupling speed regulator 120 additional between driving motor 110 and load mechanism 130, changes original variable frequency speed regulator's speed governing mode, and winding formula permanent magnet coupling speed regulator 120 carries out the speed governing and can synthesize power saving performance height 2% ~ 4% under the heavy load small-scale speed governing operating mode, and comprehensive efficiency still is more than 96% under the light load large-scale speed governing operating mode, has good flexibility and reliability simultaneously. And the winding type permanent magnet coupling speed regulator 120 is adopted for driving, so that the feasibility, safety and economy are realized. Meanwhile, the control cabinet 150 and the variable frequency transformer 140 are adopted to adjust the running state of the winding type permanent magnet coupling speed regulator 120, the adjustment is convenient, the control cabinet is suitable for various working conditions, and the universality is good.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The speed regulating system of the sealed fan is characterized by comprising a driving motor, a winding type permanent magnet coupling speed regulator, a load mechanism, a variable frequency transformer, a control cabinet and a distributed control system, wherein the input end of the winding type permanent magnet coupling speed regulator is connected with the driving motor, the output end of the winding type permanent magnet coupling speed regulator is connected with the load mechanism, the variable frequency transformer is simultaneously connected with the winding type permanent magnet coupling speed regulator and the control cabinet, the load mechanism is in signal connection with the control cabinet, the control cabinet is connected with the distributed control system to feed back a ready signal to the distributed control system, and the distributed control system is connected with the driving motor.
2. The system of claim 1, wherein the wound-rotor permanent magnet coupling speed regulator comprises a conductor rotor, a speed regulating mechanism and a permanent magnet rotor, the conductor rotor is connected with an output shaft of the driving motor, the permanent magnet rotor is connected with an input shaft of the load mechanism, and the speed regulating mechanism is arranged between the conductor rotor and the permanent magnet rotor for regulating the meshing area between the conductor rotor and the permanent magnet rotor.
3. The sealed fan speed control system of claim 1, wherein the control cabinet comprises a resistance cabinet, a starting cabinet and a speed control cabinet, the starting cabinet is connected with the winding type permanent magnet coupling speed controller through the variable frequency transformer, the speed control cabinet is connected with the resistance cabinet, and the resistance cabinet is connected with the winding type permanent magnet coupling speed controller.
4. The sealed fan speed regulation system of claim 3, wherein the control cabinet further comprises a feedback cabinet, the feedback cabinet is connected to the distributed control system, the feedback cabinet is connected to the speed regulation cabinet, and the feedback cabinet is in signal connection with the load mechanism.
5. The sealed fan speed control system of claim 3, further comprising a denitration distribution chamber, wherein the control cabinet is disposed in the denitration distribution chamber.
6. The sealed fan speed control system of claim 1, wherein the driving motor is connected with a power line and a signal line, and the distributed control system is connected with the driving motor through the signal line.
7. The sealed fan governor system of any of claims 1-6, wherein the load mechanism is a sealed fan.
8. Wind power system, characterized in that it comprises a speed regulation system of a sealed fan according to any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222299540.7U CN217999935U (en) | 2022-08-30 | 2022-08-30 | Speed regulating system of sealed fan and wind power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222299540.7U CN217999935U (en) | 2022-08-30 | 2022-08-30 | Speed regulating system of sealed fan and wind power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217999935U true CN217999935U (en) | 2022-12-09 |
Family
ID=84326830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222299540.7U Active CN217999935U (en) | 2022-08-30 | 2022-08-30 | Speed regulating system of sealed fan and wind power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217999935U (en) |
-
2022
- 2022-08-30 CN CN202222299540.7U patent/CN217999935U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101304234B (en) | Power converters | |
| US6954004B2 (en) | Doubly fed induction machine | |
| Jovanovic et al. | The use of doubly fed reluctance machines for large pumps and wind turbines | |
| CN102064563B (en) | For producing the method and apparatus of power in wind turbine | |
| US7061211B2 (en) | Gas turbine generating apparatus | |
| CN101005204B (en) | System and method of operating double fed induction generators | |
| JP5166429B2 (en) | Reversible hydroelectric generator | |
| US8193654B2 (en) | Variable speed power generator having two induction generators on a common shaft | |
| US8264094B2 (en) | High voltage direct current link transmission system for variable speed wind turbine | |
| US8193657B2 (en) | Vertical axis wind turbine using individual blade pitch and camber control integrated with matrix converter | |
| US20040257832A1 (en) | Permanent magnet induction machine | |
| JP2009502104A5 (en) | ||
| US6924991B2 (en) | Energy transfer multiplexer | |
| JP2012050181A (en) | Wind power generator | |
| CN102709929B (en) | Wind power generation electric energy management based on flywheel energy storage, and storage device and method based on flywheel energy storage | |
| EP2017953A2 (en) | Variable speed drive system | |
| CN217999935U (en) | Speed regulating system of sealed fan and wind power generation system | |
| CN100463328C (en) | Rotating electromagnetic energy transformation device | |
| JPH01110075A (en) | Pumping operation stop control method for ac excited synchronous machine | |
| EP2296257A2 (en) | Multi-stage controlled frequency generator for direct-drive wind power | |
| CN212003431U (en) | Pure square wave permanent magnet wind-collecting type wind power generation system | |
| JP2007074783A (en) | Fluid-powered generation plant | |
| CN208364453U (en) | The converting operation device of desulfurization single-stage high-speed centrifugal blower | |
| CN215109631U (en) | Fan power-saving control system | |
| CN219718070U (en) | Energy-feedback permanent magnet brushless speed regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |