CN202651804U - Reactive-power automatic adjusting system based on SCADA system of wind power plant - Google Patents
Reactive-power automatic adjusting system based on SCADA system of wind power plant Download PDFInfo
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- CN202651804U CN202651804U CN201220305104XU CN201220305104U CN202651804U CN 202651804 U CN202651804 U CN 202651804U CN 201220305104X U CN201220305104X U CN 201220305104XU CN 201220305104 U CN201220305104 U CN 201220305104U CN 202651804 U CN202651804 U CN 202651804U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model discloses a reactive-power automatic adjusting system based on an SCADA system of a wind power plant. The reactive-power automatic adjusting system comprises an SCADA system structure, a wind-power-plant reactive controller and a wind-power-plant reactive power demand reading module. The wind-power-plant reactive controller is communicated and connected with a monitoring system in the SCADA system structure and is used for adjusting and distributing the reactive power of a wind power plant. The wind-power-plant reactive power demand reading module is communicated and connected with the wind-power-plant reactive controller and is used for feeding back , as a reactive power adjusting target, the acquired reactive power of a wind-field grid-connected point and phase-line voltage fluctuation and demand to the wind-power-plant reactive controller. The system has the advantages that the reactive power adjusting system and a wind-field SCADA share monitoring data and share operating data of each fan in a wind field. According to the utility model, reactive power adjustment and transformation are carried out on a conventional SCADA system, not only saving the transformation cost to the maximum extent, but also allowing 100% integration with a conventional monitoring system.
Description
Technical field
The utility model relates to the reactive power automatic regulating system, particularly, relates to the reactive power automatic regulating system based on wind energy turbine set SCADA system.
Background technology
The Wind Energy In China aboundresources, potentiality to be exploited is huge, will become important part in the future source of energy structure.China has become the fastest wind power generation market of global evolution, and past 7 years average annual growth rate reaches 56%.Ended for the end of the year 2008, install 10 million kilowatt of national wind-powered electricity generation.Continuous increase along with the ratio of wind-powered electricity generation in net capacity, this is not only objectively requiring wind turbine generator can provide reactive power support when electrical network breaks down, the quality of power supply, voltage problem have also occurred, and large-scale wind-powered electricity generation power supply causes the problems such as electrical network unsteadiness.And the lack of uniformity that China wind-resources distributes makes China propose higher requirement to the quality of power supply of blower fan with to the reactive power support of electrical network.National grid is promulgated in formal " wind energy turbine set access power system technology standard " and mentioned in the relevant Reactive Compensation in Wind Farm regulation at the beginning of China 2012: " wind energy turbine set will take full advantage of reactive capability and the regulating power thereof of wind-powered electricity generation unit; When the reactive capability of wind-powered electricity generation unit can not satisfy system voltage adjusting needs, should concentrate the reactive power compensator that installs suitable capacity additional in wind energy turbine set, install in case of necessity dynamic reactive compensation device additional." and reactive capability also stipulate.
Now for improving the ability that is incorporated into the power networks, electrical network requires wind energy turbine set configuration reactive power compensator, and the most effectively reactive power compensator is SVG at present.With the installation 49.5MW(be roughly equal to 33 1.5MW) wind energy turbine set need to compensate 20% idle calculating, whole wind field need to drop into the SVG equipment about 2,000,000 yuan.And along with the growth of wind field capacity, SVG equipment investment expense is also in proportional increase.China annual expectation installation 12000MW, same by compensation 20% idle calculating, SVG equipment investment expense is 4.8 hundred million yuan.The SVG investment is large, utilizes the idle fan-out capability of wind-powered electricity generation unit itself can reduce wind energy turbine set operating cost!
At present, the problem that the transformation of reactive power control system of wind power station faces is, it is higher to buy the idle regulating system expense of a complete cover, and the transformation cycle is longer.Original SCADA system configuration also is faced with the problem of transformation, and the transformation of SCADA system might affect wind field production generating, and the utility model has formally been made design targetedly.
The utility model content
For the problems referred to above, the purpose of this utility model provides a kind of reactive power automatic regulating system based on wind energy turbine set SCADA system, to save improvement cost.
For achieving the above object, the utility model is taked following technical scheme:
Reactive power automatic regulating system based on wind energy turbine set SCADA system comprises the SCADA system configuration, also comprises: be connected with the supervisory control system communication in the SCADA system configuration, be used for the wind energy turbine set reactive controller that the wind energy turbine set reactive power regulates and distributes; Be connected with the communication of wind energy turbine set reactive controller, be used for the wind field that will obtain and site reactive power and phase line voltage fluctuation and demand and regulate object feedback to the wind energy turbine set reactive power demand read module of wind energy turbine set reactive controller as reactive power.
Further, described wind energy turbine set reactive power demand read module is high-precision quality of power supply module.
Further, adopt the communication of RJ45 netting twine to be connected between described supervisory control system and the wind energy turbine set reactive controller.
Further, be connected by the communication of RS232 Serial Port Line between described wind energy turbine set reactive controller and the wind energy turbine set reactive power demand read module.
Further, described wind energy turbine set SCADA system, the blower fan of its monitoring is double-fed wind power generator.
Further, described wind energy turbine set SCADA system configuration also comprises supervisory control system background server, data storage server, the network communication switch that is connected by ethernet communication with supervisory control system, and described network communication connects by the optical-fibre communications loop with between the switch.
Further, described wind energy turbine set SCADA system configuration also comprises CISCO2960 24 mouth switchs that are connected by ethernet communication with supervisory control system, the CISCO1841 router that is connected with CISCO2960 24 mouth switchs; And described network communication switch is single mode photoelectricity switch.
The utility model is owing to take above technical scheme, and it has the following advantages:
1, because the utility model on the basis of original wind energy turbine set SCADA system, has been done wind energy turbine set reactive power regulation and control system integrated and merged, avoided system compatible and Redundancy Design between original SCADA system and the reactive power regulation and control system; Reactive power regulation and control system and wind field SCADA monitor data are shared, and share each fan operation data in the wind field; By above-mentioned transformation, saving improvement cost that can not only be maximum can also accomplish that 100% merges with original supervisory control system.
2, owing to preferentially use the idle regulating power of double-fed wind power generator in the utility model, the related request that meets the wind-powered electricity generation unit interconnection technology standard of national grid promulgation, therefore the double-fed wind power generator group adopts the distribution reactive power compensation on the spot, whole the idle configuration in regulating wind power field is to the indispensable effect of having played of local wind field generator operation and grid power transmission.
3, satisfy under the prerequisite of the idle allotment demand of wind field at the wind-powered electricity generation unit energy, can be the buying input cost of wind energy turbine set owner saving to idle integrated compensation equipment.Based on original SCADA system, can save wind field design exploitation blower fan reactive power regulating system expense.
4, this system can reduce the capacity of the centralized reactive-load compensation equipment of wind energy turbine set or substitute reactive power compensator under certain condition fully.
5, can realize the inner idle allotment of wind energy turbine set and give the electric network reactive-load enabling capabilities.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the reactive power automatic regulating system structural representation based on wind energy turbine set SCADA system.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
Reactive power automatic regulating system based on wind energy turbine set SCADA system of the present utility model, to carry out reactive power in original wind energy turbine set SCADA system to regulate and transform, wherein, wind energy turbine set SCADA system is the integrated system of wind energy turbine set day-to-day operation, maintenance, monitoring and data storage.
As shown in Figure 1, CISCO2960 24 mouth switchs, supervisory control system background server, data storage server, single mode photoelectricity switch that the SCADA system configuration comprises supervisory control system, is connected by ethernet communication with supervisory control system, reach single mode photoelectricity switch (01-16 blower fan switch) corresponding to wind turbine that connects by the optical-fibre communications loop with single mode photoelectricity switch, also comprise the CISCO1841 router that is connected with CISCO2960 24 mouth switchs.
Reactive power automatic regulating system based on wind energy turbine set SCADA system of the present utility model, on the basis of wind energy turbine set SCADA system configuration, also comprise with supervisory control system communication in the SCADA system configuration being connected, be used for the wind energy turbine set reactive controller that the wind energy turbine set reactive power regulates and distributes; Be connected with the communication of wind energy turbine set reactive controller, be used for the wind field that will obtain and site reactive power and phase line voltage fluctuation and demand and regulate object feedback to the wind energy turbine set reactive power demand read module of wind energy turbine set reactive controller as reactive power.Wherein, adopt the communication of RJ45 netting twine to be connected between supervisory control system and the wind energy turbine set reactive controller; Be connected by the communication of RS232 Serial Port Line between wind energy turbine set reactive controller and the wind energy turbine set reactive power demand read module.
In the utility model, wind energy turbine set SCADA system, the blower fan of its monitoring is double-fed wind power generator.
In the utility model, what wind energy turbine set reactive power demand read module adopted is high accuracy electric energy quality module, and the data of finishing wind field and site reactive power and phase line voltage by this module read, but the monitor data of idle adjusting is not limited to this.
During the utility model work, high accuracy electric energy quality module gathers the valid data of PCC point PT transducer and CT transducer within the ms level sampling period, obtain wind field and site reactive power and phase line voltage fluctuation and demand, this also is the adjusting target of feeding back in the adjustment process, regulate target data and deliver to the wind energy turbine set reactive controller through RS232 serial communication circuit, unpack software analysis by control software Modbus message and obtain concrete numerical value afterwards.In this simultaneously; the wind energy turbine set reactive controller is also in the real-time state information of obtaining all wind-powered electricity generation units in the wind energy turbine set; whether be in the wind regime such as the attitude that is incorporated into the power networks, fault case, shutdown attitude, little wind standby such as blower fan or safeguard attitude; the real-time status of blower fan will directly affect the allocation strategy of later stage reactive power, and then affect the idle output of wind energy turbine set and feedback effects.Read the wind turbine state and be the equipment such as the single mode photoelectricity switch that depends in the original SCADA system, supervisory control system, and original SCADA optical-fibre communications looped network.
The utility model carries out reactive power in original SCADA system to be regulated and transforms, can not only maximum saving improvement cost, can also accomplish that 100% merges with original supervisory control system.The SCADA system that has the idle regulating power of wind-powered electricity generation unit can make wind-powered electricity generation manufacturing enterprise stand on the invincible position in the market competition of fierceness.
In the various embodiments described above; each structure, setting position and communication modes thereof all can change to some extent; on the basis of technical solutions of the utility model, to improvement and the equivalents that individual component is carried out, should not get rid of outside protection range of the present utility model.
Claims (7)
1. based on the reactive power automatic regulating system of wind energy turbine set SCADA system, comprise the SCADA system configuration, it is characterized in that, also comprise:
Be connected with the supervisory control system communication in the SCADA system configuration, be used for the wind energy turbine set reactive controller that the wind energy turbine set reactive power regulates and distributes;
Be connected with the communication of wind energy turbine set reactive controller, be used for the wind field that will obtain and site reactive power and phase line voltage fluctuation and demand and regulate object feedback to the wind energy turbine set reactive power demand read module of wind energy turbine set reactive controller as reactive power.
2. the reactive power automatic regulating system based on wind energy turbine set SCADA system according to claim 1 is characterized in that, described wind energy turbine set reactive power demand read module is high-precision quality of power supply module.
3. the reactive power automatic regulating system based on wind energy turbine set SCADA system according to claim 1 and 2 is characterized in that, adopts the communication of RJ45 netting twine to be connected between described supervisory control system and the wind energy turbine set reactive controller.
4. the reactive power automatic regulating system based on wind energy turbine set SCADA system according to claim 1 and 2 is characterized in that, is connected by the communication of RS232 Serial Port Line between described wind energy turbine set reactive controller and the wind energy turbine set reactive power demand read module.
5. the reactive power automatic regulating system based on wind energy turbine set SCADA system according to claim 1 and 2 is characterized in that, described wind energy turbine set SCADA system, and the blower fan of its monitoring is double-fed wind power generator.
6. the reactive power automatic regulating system based on wind energy turbine set SCADA system according to claim 1 and 2, it is characterized in that, described wind energy turbine set SCADA system configuration also comprises supervisory control system background server, data storage server, the network communication switch that is connected by ethernet communication with supervisory control system, and described network communication connects by the optical-fibre communications loop with between the switch.
7. the reactive power automatic regulating system based on wind energy turbine set SCADA system according to claim 6, it is characterized in that described wind energy turbine set SCADA system configuration also comprises CISCO2960 24 mouth switchs that are connected by ethernet communication with supervisory control system, the CISCO1841 router that is connected with CISCO2960 24 mouth switchs; And described network communication switch is single mode photoelectricity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220305104XU CN202651804U (en) | 2012-06-27 | 2012-06-27 | Reactive-power automatic adjusting system based on SCADA system of wind power plant |
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| CN201220305104XU CN202651804U (en) | 2012-06-27 | 2012-06-27 | Reactive-power automatic adjusting system based on SCADA system of wind power plant |
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| CN202651804U true CN202651804U (en) | 2013-01-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709925A (en) * | 2012-06-27 | 2012-10-03 | 国电联合动力技术有限公司 | Reactive power automatic regulating system on basis of wind power station SCADA (Supervisory Control And Data Acquisition) system |
| CN103151795A (en) * | 2013-01-25 | 2013-06-12 | 沈阳工业大学 | Scattered-type wind power plant reactive power optimization control method capable of reducing fan losses and system |
-
2012
- 2012-06-27 CN CN201220305104XU patent/CN202651804U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709925A (en) * | 2012-06-27 | 2012-10-03 | 国电联合动力技术有限公司 | Reactive power automatic regulating system on basis of wind power station SCADA (Supervisory Control And Data Acquisition) system |
| CN103151795A (en) * | 2013-01-25 | 2013-06-12 | 沈阳工业大学 | Scattered-type wind power plant reactive power optimization control method capable of reducing fan losses and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NATIONAL ELECTRIC NEW ENERGY TECHNOLOGY INSTITUTE Effective date: 20130627 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130627 Address after: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee after: GUODIAN UNITED POWER TECHNOLOGY Co.,Ltd. Patentee after: GUODIAN NEW ENERGY TECHNOLOGY INSTITUTE Address before: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee before: GUODIAN UNITED POWER TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |