CN205123280U - Topological structure of wind -powered electricity generation field, step up controlling means and system - Google Patents
Topological structure of wind -powered electricity generation field, step up controlling means and system Download PDFInfo
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- CN205123280U CN205123280U CN201520909017.9U CN201520909017U CN205123280U CN 205123280 U CN205123280 U CN 205123280U CN 201520909017 U CN201520909017 U CN 201520909017U CN 205123280 U CN205123280 U CN 205123280U
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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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Abstract
An embodiment of the utility model provides a topological structure of wind -powered electricity generation field, step up controlling means and system. The topological structure of wind -powered electricity generation field includes: at least one wind generating set cluster and at least one unit step up transformer cluster that one -to -one setting and selectivity are connected, wherein, the wind generating set cluster includes many parallel connection's wind generating set, unit step up transformer cluster includes many parallel connection's unit step up transformer. Through the utility model discloses a topological structure of wind -powered electricity generation field, step up controlling means and system for the wind generating set step up transformer long -time running is interval in the high efficiency, and power consumption is less. And unit step up transformer on the same group each other is reserve, the reliability that wind -powered electricity generation field current collection was netted has been improved.
Description
Technical field
The utility model relates to technical field of wind power generation, particularly relates to a kind of topological structure of wind energy turbine set, boosting controller and system.
Background technology
Wind energy is a kind of clean regenerative resource, and wind energy is transformed into mechanical energy, then is electric energy changes mechanical energy, Here it is wind power generation.In recent years, wind power technology is more and more subject to the attention of countries in the world, and will higher speed be kept to continue development.But relative to other power generating equipments, wind power generation has certain particularity, as load random fluctuation, light running operating mode occupy the majority.
Fig. 1 is the illustrative diagram of the topological structure of prior art wind energy turbine set, and with reference to Fig. 1, the topological structure of common wind energy turbine set is " machine one becomes " mode, and namely a wind turbine generator connects a unit step-up transformer.In wind energy turbine set, the output voltage of wind-driven generator is 690V.Bring the voltage up to 10kV or 35kV through unit step-up transformer, then through current collection feeder line the electric energy that all wind-driven generators export collected and be transported to booster stations (as main transformer) and boost, reach 110kV or 220kV and send into electric power system.
But aforesaid way has following weak point: first, in the interval that load factor is higher, the efficiency of unit step-up transformer is higher, and when load factor drops to a certain degree, the efficiency of unit step-up transformer can sharply decline; Secondly, because the output pulsation of wind power generation is large, light duty is many, above topology structure can make unit step-up transformer often operate in inefficient state, and its power loss is relatively high.
Utility model content
The object of the utility model embodiment is, provides a kind of topological structure of wind energy turbine set, boosting controller and system, to realize making the long-time running of wind turbine generator step-up transformer between high efficient area, reduces power consumption.
For realizing above-mentioned utility model object, embodiment of the present utility model provides a kind of topological structure of wind energy turbine set, described topological structure comprises: one_to_one corresponding is arranged and at least one wind turbine generator cluster of selectivity connection and at least one unit step-up transformer cluster, wherein, described wind turbine generator cluster comprises the wind turbine generator that multiple stage is connected in parallel, and described unit step-up transformer cluster comprises the unit step-up transformer that multiple stage is connected in parallel.
Preferably, described topological structure also comprises multiple first automatic circuit breaker, and described first automatic circuit breaker is arranged between described unit step-up transformer with the corresponding described wind turbine generator cluster arranged.
Preferably, the quantity of described first automatic circuit breaker is identical with the quantity of described unit step-up transformer, and one_to_one corresponding is arranged.
The boosting controller that embodiment still provides a kind of wind energy turbine set of the present utility model, described wind energy turbine set adopts topological structure as in the foregoing embodiment, described boosting controller comprises: load factor acquisition module, for obtaining the power output load factor of at least one wind turbine generator cluster described respectively; Number transformer adjusting module, for adjusting the quantity of the unit step-up transformer run in the corresponding unit step-up transformer cluster arranged respectively according to described power output load factor.
Preferably, described load factor acquisition module comprises:
Acquiring unit, for obtaining real output and the rated output power of each wind turbine generator in each wind turbine generator cluster respectively,
Computing unit, for calculate the real output of each wind turbine generator in each wind turbine generator cluster respectively with the rated output power of value and each wind turbine generator and value, using described real output with value and described rated output power with the power output load factor of the ratio be worth as described wind turbine generator cluster.
The boosting rectifier control system that embodiment still provides a kind of wind energy turbine set of the present utility model, described boosting rectifier control system comprises topological structure as in the foregoing embodiment and boosting controller as in the foregoing embodiment, and the unit step-up transformer cluster in described boosting controller and described topological structure is electrically connected.
The topological structure of the wind energy turbine set that the utility model embodiment provides, boosting controller and system, by wind turbine generator and unit step-up transformer are divided into groups respectively, wind turbine generator in same cluster adopts connected mode in parallel, unit step-up transformer in same cluster also adopts connected mode in parallel, forms cluster to the topological structure of cluster.Thus make the long-time running of wind turbine generator step-up transformer between high efficient area, reduce power loss.Further, for subsequent use each other between the unit step-up transformer in same cluster, improve the reliability of wind energy turbine set current collection net.
Accompanying drawing explanation
Fig. 1 is the illustrative diagram of the topological structure of prior art wind energy turbine set;
Fig. 2 is the schematic flow sheet of the topological structure of the wind energy turbine set of the utility model embodiment one;
Fig. 3 is the structural representation of the boosting controller of the wind energy turbine set of the utility model embodiment two.
Embodiment
Below in conjunction with accompanying drawing, the topological structure of the utility model embodiment wind energy turbine set, boosting controller and system are described in detail.
Embodiment one
Fig. 2 is the schematic flow sheet of the topological structure of the wind energy turbine set of the utility model embodiment one, with reference to Fig. 2, the topological structure of wind energy turbine set comprises one_to_one corresponding and arranges and at least one wind turbine generator cluster 210 and at least one unit step-up transformer cluster 220 of selectivity connection, wherein, wind turbine generator cluster 210 comprises the wind turbine generator that multiple stage is connected in parallel, and unit step-up transformer cluster 220 comprises the unit step-up transformer that multiple stage is connected in parallel.
In concrete implementation, for wind turbine generator cluster, in each wind turbine generator cluster, the number of units of wind turbine generator can be Arbitrary Digit, the wind turbine generator of identical number of units can be used between each wind turbine generator cluster, also can use the wind turbine generator of different number of units.Usually, the number of units of wind turbine generator be more than or equal to 2 natural number, be advisable with 2-4 platform.In like manner, in unit step-up transformer cluster, the number of units of unit step-up transformer also can be Arbitrary Digit, can use the unit step-up transformer of identical or different number of units between each unit step-up transformer cluster.
In the present embodiment, what the topological structure of wind energy turbine set adopted is " cluster is to cluster " mode, and between wind turbine generator cluster and unit step-up transformer cluster, wind turbine generator can be identical with the number of units of unit step-up transformer, also can difference.In addition, in each unit step-up transformer cluster, the capacity of each unit step-up transformer can be identical, also can size matching.
Preferably, the topological structure of wind energy turbine set also comprises multiple first automatic circuit breaker, and the first automatic circuit breaker is arranged between unit step-up transformer with the corresponding wind turbine generator cluster arranged.
Further, the quantity of the first automatic circuit breaker is identical with the quantity of unit step-up transformer, and one_to_one corresponding is arranged.
Particularly, the output of each unit step-up transformer cluster is connected with current collection feeder line respectively.The topological structure of wind energy turbine set can also comprise the current collection feeder line, the second automatic circuit breaker, main transformer and the electrical network bus that connect successively.Particularly, the electric energy that each wind turbine generator cluster exports collects and enters unit step-up transformer cluster, and be then pooled to main transformer by current collection feeder line, boosting reaches the electrical network bus that 110kV or 220kV sends into electric power system.
The topological structure of the wind energy turbine set of the utility model embodiment, by wind turbine generator and unit step-up transformer are divided into groups respectively, unit step-up transformer in wind turbine generator in same cluster and same cluster all adopts connected mode in parallel, forms cluster to the topological structure of cluster.Thus make the long-time running of wind turbine generator step-up transformer between high efficient area, reduce power loss.And, for subsequent use each other between unit step-up transformer in same cluster, when a unit step-up transformer damages, can ensure that corresponding wind turbine generator cluster runs below certain power with other unit step-up transformers in group, and then improve the reliability of wind energy turbine set current collection net.
Embodiment two
Fig. 3 is the structural representation of the boosting controller of the wind energy turbine set of the utility model embodiment two.Wind energy turbine set adopts the topological structure as described in embodiment one.
With reference to Fig. 3, the boosting controller of this wind energy turbine set comprises load factor acquisition module 310 and number transformer adjusting module 320.
Load factor acquisition module 310 is for obtaining the power output load factor of at least one wind turbine generator cluster respectively.
Particularly, load factor acquisition module 310 can comprise:
Acquiring unit (not shown) is used for the real output and the rated output power that obtain each wind turbine generator in each wind turbine generator cluster respectively.
Computing unit (not shown) be used for the real output calculating each wind turbine generator in each wind turbine generator cluster respectively with the rated output power of value and each wind turbine generator and value, using described real output be worth and described rated output power with the power output load factor of the ratio be worth as described wind turbine generator cluster.
Computing unit specifically can utilize following formula (1) to calculate the power output load factor of wind turbine generator cluster:
Wherein, R is the power output load factor of wind turbine generator cluster, P
actual ibe the real output of i-th wind turbine generator,
be the rated output power of i-th wind turbine generator, i is the number of units of wind turbine generator in wind turbine generator cluster, and 1≤i≤n, i is positive integer.
Number transformer adjusting module 320 is for adjusting the quantity of the unit step-up transformer run in the corresponding unit step-up transformer cluster arranged respectively according to power output load factor.
The operation principle of the boosting controller of this wind energy turbine set is described for a wind turbine generator cluster below.
Suppose that the unit step-up transformer cluster that arrange corresponding to it comprises three unit step-up transformers be connected in parallel, specifically can be handled as follows: the power output load factor that load factor acquisition module 310 gets wind turbine generator cluster is R, suppose that the first load factor threshold value is R1, the second load factor threshold value R2.As R >=R1, the unit step-up transformer that number transformer adjusting module 320 adjusts this unit step-up transformer cluster all runs; As load factor R2≤R < R1, number transformer adjusting module 320 at random adjustment two unit step-up transformers puts into operation; As load factor R < R2, a number transformer adjusting module 320 at random adjustment unit step-up transformer puts into operation.
In actual applications, also can control the switching of multiple first automatic circuit breakers connected one to one with unit step-up transformer, thus adjust the number of units of the unit step-up transformer put into operation.In addition, the value of R1 can be 67%, or the numerical value being less than 67% is as 55%, 60% etc., and the value of R2 can be 33%, or other numerical value being less than 33%.
In like manner known, if the unit step-up transformer cluster connected corresponding with this wind turbine generator cluster comprises four unit step-up transformers be connected in parallel, so can set three load factor threshold values, thus be divided into four threshold range intervals, power output load factor lay respectively at these four threshold ranges interval time corresponding four, three, Liang Tai, a unit step-up transformer run.
The boosting controller of wind energy turbine set of the present utility model, according to the power output load factor of the multiple wind turbine generator clusters got, the unit step-up transformer of each the unit step-up transformer cluster that connect corresponding to it number of units that puts into operation is regulated, achieve the long-time running of unit step-up transformer between high efficient area, reduce power loss.
The utility model additionally provides a kind of boosting rectifier control system of wind energy turbine set, comprise the topological structure as described in embodiment one and the boosting controller as described in embodiment two, the unit step-up transformer cluster in described boosting controller and described topological structure is electrically connected.
The boosting rectifier control system of wind energy turbine set of the present utility model, on the one hand, by wind turbine generator and unit step-up transformer are divided into groups respectively, unit step-up transformer in wind turbine generator in same cluster and same cluster all adopts connected mode in parallel, forms cluster to the topological structure of cluster; On the other hand, according to the power output load factor of the multiple wind turbine generator clusters got, the unit step-up transformer of each the unit step-up transformer cluster that connect corresponding to it number of units that puts into operation is regulated.Thus make the long-time running of wind turbine generator step-up transformer between high efficient area, reduce power loss.
And, for subsequent use each other between unit step-up transformer in same cluster, when a unit step-up transformer damages, can ensure that corresponding wind turbine generator cluster runs below certain power with other unit step-up transformers in group, and then improve the reliability of wind energy turbine set current collection net
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of described claim.
Claims (6)
1. the topological structure of a wind energy turbine set, it is characterized in that, described topological structure comprises one_to_one corresponding and arranges and at least one wind turbine generator cluster of selectivity connection and at least one unit step-up transformer cluster, wherein, described wind turbine generator cluster comprises the wind turbine generator that multiple stage is connected in parallel, and described unit step-up transformer cluster comprises the unit step-up transformer that multiple stage is connected in parallel.
2. topological structure according to claim 1, is characterized in that, described topological structure also comprises multiple first automatic circuit breaker, and described first automatic circuit breaker is arranged between described unit step-up transformer with the corresponding described wind turbine generator cluster arranged.
3. topological structure according to claim 2, is characterized in that, the quantity of described first automatic circuit breaker is identical with the quantity of described unit step-up transformer, and one_to_one corresponding is arranged.
4. a boosting controller for wind energy turbine set, is characterized in that, described wind energy turbine set adopts the topological structure according to any one of claims 1 to 3, and described boosting controller comprises:
Load factor acquisition module, for obtaining the power output load factor of at least one wind turbine generator cluster described respectively;
Number transformer adjusting module, for adjusting the quantity of the unit step-up transformer run in the corresponding unit step-up transformer cluster arranged respectively according to described power output load factor.
5. boosting controller according to claim 4, is characterized in that, described load factor acquisition module comprises:
Acquiring unit, for obtaining real output and the rated output power of each wind turbine generator in each wind turbine generator cluster respectively,
Computing unit, for calculate the real output of each wind turbine generator in each wind turbine generator cluster respectively with the rated output power of value and each wind turbine generator and value, using described real output with value and described rated output power with the power output load factor of the ratio be worth as described wind turbine generator cluster.
6. the boosting rectifier control system of a wind energy turbine set, it is characterized in that, comprise the topological structure according to any one of claims 1 to 3 and the boosting controller as described in claim 4 or 5, the unit step-up transformer cluster in described boosting controller and described topological structure is electrically connected.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281369A (en) * | 2015-11-13 | 2016-01-27 | 北京天诚同创电气有限公司 | Topological structure of wind power plant, and boost control method, device and system |
| CN105976071A (en) * | 2016-05-30 | 2016-09-28 | 华南理工大学 | Wind turbine generator system inspection decision method based on dominance-based rough set |
| WO2018187645A1 (en) * | 2017-04-07 | 2018-10-11 | General Electric Company | Low-wind operation of clustered doubly fed induction generator wind turbines |
| CN109301868A (en) * | 2018-10-26 | 2019-02-01 | 上海电气风电集团有限公司 | A kind of high-power modular wind electric converter intelligence suspend mode control system and method |
| CN110622380A (en) * | 2017-05-23 | 2019-12-27 | 通用电气公司 | Electric power system and subsystem |
-
2015
- 2015-11-13 CN CN201520909017.9U patent/CN205123280U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281369A (en) * | 2015-11-13 | 2016-01-27 | 北京天诚同创电气有限公司 | Topological structure of wind power plant, and boost control method, device and system |
| CN105976071A (en) * | 2016-05-30 | 2016-09-28 | 华南理工大学 | Wind turbine generator system inspection decision method based on dominance-based rough set |
| WO2018187645A1 (en) * | 2017-04-07 | 2018-10-11 | General Electric Company | Low-wind operation of clustered doubly fed induction generator wind turbines |
| CN110741157A (en) * | 2017-04-07 | 2020-01-31 | 通用电气公司 | Low wind operation of clustered doubly-fed induction generator wind turbine |
| US10615608B2 (en) | 2017-04-07 | 2020-04-07 | General Electric Company | Low-wind operation of clustered doubly fed induction generator wind turbines |
| CN110741157B (en) * | 2017-04-07 | 2021-05-25 | 通用电气公司 | Low wind operation of clustered doubly-fed induction generator wind turbine |
| CN110622380A (en) * | 2017-05-23 | 2019-12-27 | 通用电气公司 | Electric power system and subsystem |
| CN109301868A (en) * | 2018-10-26 | 2019-02-01 | 上海电气风电集团有限公司 | A kind of high-power modular wind electric converter intelligence suspend mode control system and method |
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