CN106936279A - A kind of bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator - Google Patents
A kind of bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator Download PDFInfo
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- CN106936279A CN106936279A CN201511011746.3A CN201511011746A CN106936279A CN 106936279 A CN106936279 A CN 106936279A CN 201511011746 A CN201511011746 A CN 201511011746A CN 106936279 A CN106936279 A CN 106936279A
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- synchronous generator
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- prime mover
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 48
- 230000009466 transformation Effects 0.000 title claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- 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
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
-
- 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
- H02K7/1846—Rotary generators structurally associated with wheels or associated parts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses the bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator, including synchronous generator, Wound-rotor asynchronous generator amature, auxiliary stator, secondary rotor, current transformer, revolution speed control system, ac bus, accessory system, Measurement and Control System, prime mover and its transmission mechanism for replacing synchronous generator rotor.The present invention retains the stator of former synchronous generator, former synchronous generator rotor is replaced with and stator winding number of poles identical asynchronous generating machine rotor, and installing secondary rotor and auxiliary stator additional with generator amature coaxial position, the electric parameter of auxiliary stator winding is controlled by current transformer, variable speed constant frequency control is realized.The present invention combines the characteristic of synchronous generator and double-fed asynchronous generator, and the change to original system is smaller, and improvement cost is relatively low, brushless slip ring, improves the operational efficiency of prime mover, improves the operating condition of primary group of motors, improves the capacity of generating set.
Description
Technical field
The present invention relates to synchronous generator and double-fed asynchronous electricity generation system, more particularly to a kind of Synchronous generator bimorph transducer asynchronization capacity-increasing transformation system.
Background technology
Synchronous generator is so that its capacity is big, adjustable active power and reactive power the advantages of be widely used in hydroelectric generation, wind-power electricity generation, thermal power generation equal energy source are developed.Due to being constrained by conditions such as mains frequency, the unstability of power generation operation material and dispatchings of power netwoks, prevent driving prime mover of these synchronous generators from being in optimal working speed all the time, and then cause the degrading of generating set, vibration aggravation, efficiency reduction, have impact on the safe operation of generating set.
With the development of current energy development, in order to improve the efficient energy conversion of prime mover, in the exploitation of the clean energy resourcies such as hydroelectric generation, wind-power electricity generation, tidal power generation and wave-activated power generation, double-fed asynchronous generator has been widely used.During double-fed asynchronous generator group works, the rotating speed of prime mover can change in the range of certain, and the rotating speed of the double-fed asynchronous generator being driven by it changes therewith.
The content of the invention
Advantage it is an object of the invention to combine above-mentioned prior art, a kind of bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator is provided, improve the operational efficiency of prime mover and whole generating set, improve the operating condition of former Synchronous generator, the capacity of generating set is improved, the stability of generating set operation is improved.
The present invention is achieved through the following technical solutions：
A kind of bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator, double-fed asynchronous generator rotor, auxiliary stator, secondary rotor, current transformer, revolution speed control system, ac bus, accessory system, prime mover and transmission mechanism including synchronous generator, for replacing synchronous generator rotor
The stator winding of the synchronous generator is connected with ac bus, and double-fed asynchronous generator rotor windings are connected with secondary rotor winding circuit, and double-fed asynchronous generator rotor and auxiliary stator, the secondary rotor of the synchronous generator are co-axially mounted；
The current transformer is connected with auxiliary stator winding circuit, for the electric parameter according to synchronous generator adjustment of rotational speed auxiliary stator, and by aiding in stator and rotor between air-gap field pass to secondary rotor, and then control the electric parameter of double-fed asynchronous generator rotor, realize the variable speed constant frequency control of whole unit, power is conveyed to ac bus when generating set runs on supersynchronous state, electrical power is absorbed from ac bus when generating set runs on metasynchronism state and synchronous regime；
The transmission mechanism is used to couple prime mover and double-fed asynchronous generator rotor, realizes transmission and the transformation of speed of power；The revolution speed control system is used to be adjusted according to the operating condition of whole system the rotating speed of prime mover, and the efficient conversion or limitation power input for realizing energy make whole system be in the operation interval of safety；
The accessory system includes providing necessary ventilation, radiating, the oil of de-icing work environment, gas and water, electric equipment for the safe and reliable work of system, is further ensured that system stabilization safe operation.
Further, also including Measurement and Control System, the Measurement and Control System is used to detect running status, the parameter of each equipment, control prime mover, the rotating speed of synchronous generator, and then controls the operation of each current transformer, monitors the safe and stable operation of whole system.
Further, described prime mover includes wind energy conversion system, steam turbine, the hydraulic turbine, realizes the application in various occasions such as wind-power electricity generation, firepower or water generating.
Further, the electric parameter includes voltage, electric current, frequency, phase.
The present invention has the following advantages and effect relative to prior art：
It is of the invention simple, it is easy to accomplish.
The present invention retains the stator and stator winding of former synchronous generator, only the rotor of former Synchronous generator is replaced with and stator winding number of poles identical asynchronous generating machine rotor, and with generator amature coaxial position on install secondary rotor and auxiliary stator additional and be used for the power output of increase-volume part, change to original system is smaller, improvement cost is relatively low, brushless slip ring, with reference to synchronous generator and the characteristic of asynchronous generator, improve the operational efficiency of prime mover, improve the operating condition of primary group of motors, improve the capacity of generating set.Change to original system is smaller, and improvement cost is relatively low.
As described above, the system technological means is simple and easy to do, with reference to synchronous generator and the characteristic of asynchronous generator, improve the operational efficiency of prime mover and whole generating set, improve the operating condition of former Synchronous generator, improve the capacity of generating set, improve the stability of generating set operation.
Brief description of the drawings
Fig. 1 is the structure square frame and control schematic diagram of the embodiment of the present invention.
Specific embodiment
Goal of the invention of the invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, embodiment can not be repeated one by one herein, but therefore embodiments of the present invention are not defined in following examples.
Embodiment
1
As shown in Figure 1.A kind of bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator, including synchronous generator, double-fed asynchronous generator rotor, auxiliary stator, secondary rotor, current transformer, revolution speed control system, ac bus, accessory system, Measurement and Control System, prime mover and its transmission mechanism for replacing synchronous generator rotor.
The stator winding of the synchronous generator is connected with ac bus, and double-fed asynchronous generator rotor windings are connected with secondary rotor winding circuit, and double-fed asynchronous generator rotor and auxiliary stator, the secondary rotor of the synchronous generator are co-axially mounted.
The current transformer is connected with auxiliary stator winding circuit, for the electric parameter according to synchronous generator adjustment of rotational speed auxiliary stator, and by aiding in stator and rotor between air-gap field pass to secondary rotor, and then control the electric parameter of double-fed asynchronous generator rotor, realize the variable speed constant frequency control of whole unit, power is conveyed to ac bus when generating set runs on supersynchronous state, electrical power is absorbed from ac bus when generating set runs on metasynchronism state and synchronous regime.
The transmission mechanism is used to couple prime mover and double-fed asynchronous generator rotor, realizes transmission and the transformation of speed of power；The revolution speed control system is used to be adjusted according to the operating condition of whole system the rotating speed of prime mover, and the efficient conversion or limitation power input for realizing energy make whole system be in the operation interval of safety.
The accessory system includes providing necessary ventilation, radiating, the oil of de-icing work environment, gas and water, electric equipment for the safe and reliable work of system.
Specifically, the Measurement and Control System is used to detect running status, the parameter of each equipment, control prime mover, the rotating speed of synchronous generator, and then control the operation of each current transformer, monitor the safe and stable operation of whole system, wherein measurement part can be using conventional voltmeter, ammeter or universal meter measurement voltage, power frequency etc., using rotating speed, moment of torsion and power meter measures rotating speed power, its control section can be run using control devices with the signal output function such as RS485, RS232 such as conventional PLC or single-chip microcomputer according to each equipment of surveyed parameter adjustment.
Described prime mover includes wind energy conversion system, steam turbine, the hydraulic turbine, realizes the application in occasions such as wind-power electricity generation, firepower or water generatings.
The present embodiment technological means is simple and easy to do, with reference to synchronous generator and the characteristic of asynchronous generator, the operational efficiency of prime mover and whole generating set is improved, improve the operating condition of former Synchronous generator, the capacity of generating set is improved, the stability of generating set operation is improved.
Embodiments of the present invention are simultaneously not restricted to the described embodiments; other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplify; equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (4)
1. the bimorph transducer asynchronization capacity-increasing transformation system of a kind of Synchronous generator, it is characterised in that：Double-fed asynchronous generator rotor, auxiliary stator, secondary rotor, current transformer, revolution speed control system, ac bus, accessory system, prime mover and transmission mechanism including synchronous generator, for replacing synchronous generator rotor,
The stator winding of the synchronous generator is connected with ac bus, and double-fed asynchronous generator rotor windings are connected with secondary rotor winding circuit, and double-fed asynchronous generator rotor and auxiliary stator, the secondary rotor of the synchronous generator are co-axially mounted；
The current transformer is connected with auxiliary stator winding circuit, for the electric parameter according to synchronous generator adjustment of rotational speed auxiliary stator, and by aiding in stator and rotor between air-gap field pass to secondary rotor, and then control the electric parameter of double-fed asynchronous generator rotor, realize the variable speed constant frequency control of whole unit, power is conveyed to ac bus when generating set runs on supersynchronous state, electrical power is absorbed from ac bus when generating set runs on metasynchronism state and synchronous regime；
The transmission mechanism is used to couple prime mover and double-fed asynchronous generator rotor, realizes transmission and the transformation of speed of power；The revolution speed control system is used to be adjusted according to the operating condition of whole system the rotating speed of prime mover, and the efficient conversion or limitation power input for realizing energy make whole system be in the operation interval of safety；
The accessory system includes providing necessary ventilation, radiating, the oil of de-icing work environment, gas and water, electric equipment for the safe and reliable work of system.
2. the bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator according to claim 1, it is characterised in that:Also include Measurement and Control System, the Measurement and Control System is used to detect running status, the parameter of each equipment, control prime mover, the rotating speed of synchronous generator, and then controls the operation of each current transformer, monitors the safe and stable operation of whole system.
3. the bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator according to claim 1, it is characterised in that:Described prime mover includes wind energy conversion system, steam turbine, the hydraulic turbine.
4. the bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator according to claim 1, it is characterised in that:The electric parameter includes voltage, electric current, frequency, phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011746.3A CN106936279A (en) | 2015-12-30 | 2015-12-30 | A kind of bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011746.3A CN106936279A (en) | 2015-12-30 | 2015-12-30 | A kind of bimorph transducer asynchronization capacity-increasing transformation system of Synchronous generator |
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| CN106936279A true CN106936279A (en) | 2017-07-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687800A (en) * | 2019-02-19 | 2019-04-26 | 清华大学 | The auxiliary winding current control method and device of variable speed constant frequency water-pumping energy-storage system |
| CN113013918A (en) * | 2021-02-08 | 2021-06-22 | 广州华南鑫沨能源科技有限公司 | Alternating current excitation transformation method and system for grid-connected direct current excitation synchronous generator set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771314A (en) * | 2008-12-09 | 2010-07-07 | 张家平 | Double-rotor (stator) generator |
| CN102545502A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Dual-stator brushless double-fed motor |
| CN105162165A (en) * | 2015-09-24 | 2015-12-16 | 华南理工大学 | Converter gathering and distributing transformed doubly-fed induction generation system |
| CN105186576A (en) * | 2015-09-24 | 2015-12-23 | 华南理工大学 | Double-fed asynchronously transformed synchronous generating set system |
-
2015
- 2015-12-30 CN CN201511011746.3A patent/CN106936279A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771314A (en) * | 2008-12-09 | 2010-07-07 | 张家平 | Double-rotor (stator) generator |
| CN102545502A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Dual-stator brushless double-fed motor |
| CN105162165A (en) * | 2015-09-24 | 2015-12-16 | 华南理工大学 | Converter gathering and distributing transformed doubly-fed induction generation system |
| CN105186576A (en) * | 2015-09-24 | 2015-12-23 | 华南理工大学 | Double-fed asynchronously transformed synchronous generating set system |
Non-Patent Citations (2)
| Title |
|---|
| 潘再平: "风力发电中的变速恒频技术", 《能源工程》 * |
| 潘再平等: "同步异步变速恒频发电机组分析", 《微特电机》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687800A (en) * | 2019-02-19 | 2019-04-26 | 清华大学 | The auxiliary winding current control method and device of variable speed constant frequency water-pumping energy-storage system |
| CN113013918A (en) * | 2021-02-08 | 2021-06-22 | 广州华南鑫沨能源科技有限公司 | Alternating current excitation transformation method and system for grid-connected direct current excitation synchronous generator set |
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Application publication date: 20170707 |
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