CN208985211U - Determine the device of Wind turbines limit power data - Google Patents
Determine the device of Wind turbines limit power data Download PDFInfo
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Abstract
The utility model embodiment provides a kind of device of determining Wind turbines limit power data, which includes: curve acquisition equipment, for obtaining the operation data of Wind turbines, power characteristic of the acquisition Wind turbines under standard air density；Period determines equipment, for being based on the power characteristic and the operation data, determines the limit power periods of the Wind turbines；Period identifies equipment, in the limit power periods of the Wind turbines, determining unit factor limit power periods and power grid factor limit power periods.The program is conducive to the limit power data of unit caused by accurately distinguishing different reasons, and then is conducive to the loss of generated energy caused by accurately calculating each reason and abandonment electricity.
Description
Technical field
The utility model relates to Wind turbines technical field, in particular to a kind of dress of determining Wind turbines limit power data
It sets.
Background technique
In recent years, wind-powered electricity generation adding new capacity in China's is grown rapidly, and the newly-increased wind-powered electricity generation in the whole nation in 2016 is installed 23,370,000 kilowatts,
Accumulative installed capacity reaches 1.69 hundred million kilowatts, continues ranking the first in the world.However, although Wind Power In China industry development is rapid, I
State's wind-powered electricity generation but has very big room for promotion using horizontal and generating capacity, and national wind-powered electricity generation averagely utilizes hourage 1742 small within 2017
When, when annual abandonment electricity is up to 49,700,000,000 thousand ten thousand.The generated energy for how solving wind-electricity integration consumption, promoting wind power plant, has got over
More to attract attention and study.Wherein, since unit limit Power operation is the important link for causing wind power plant generated energy to lose.
When Wind turbines actual motion, limit power mainly includes two parts: first is that since power grid access denial, peak regulation are tired
Power grid factor caused by difficulty etc. limit power, after being handed down to wind power plant by dispatching of power netwoks, then by wind power plant pass through AGC (Automatic
Gain Control, Automatic Generation Control) system is handed down to each Wind turbines in field, realize the limit Power operation of Wind turbines；
Second is that the unit factor as caused by Wind turbines defect limits power, by the operation current according to unit of Wind turbines master control system
The variable of situation and acquisition judges Wind turbines with the presence or absence of defect, and defect then automatically controls Wind turbines drop power if it exists
Operation.Since two kinds of limit power factor (PF)s show unanimously in power scatter plot, and limit power flag bit, nothing is not configured in most blowers
Method accurately distinguishes power grid factor limit power data and unit factor limit power data.It is existing when counting wind power plant abandonment electricity
Technology is in most cases power grid factor limit power the rough statistics of the limit power operating states of Wind turbines, and not to it
In unit factor limit power data and power grid factor limit power data accurately distinguished, and then affect Wind turbines power generation
The accuracy that amount loss and abandonment electricity calculate.
Utility model content
The utility model embodiment provides a kind of device of determining Wind turbines limit power data, to solve the prior art
In can not identify unit factor limit power data and power grid factor limit power data the technical issues of.The device includes:
Curve acquires equipment, for obtaining the operation data of Wind turbines, obtains Wind turbines under standard air density
Power characteristic；
Period determines equipment, for being based on the power characteristic and the operation data, determines the Wind turbines
Limit power periods；
Period identifies equipment, in the limit power periods of the Wind turbines, determining that unit factor limits power periods
Power periods are limited with power grid factor.
In the utility model embodiment, first power characteristic of the acquisition Wind turbines under standard air density and
Operation data, and then based on the power characteristic and operation data under standard air density, determine the limit function of Wind turbines
The rate period, then, in the limit power periods of Wind turbines, when determining unit factor limit power periods and power grid factor limit power
Section proposes a kind of limit power periods based on Wind turbines to identify unit factor limit power periods and power grid factor limit power
The technical solution of period.Be conducive to the limit power data of unit caused by accurately distinguishing different reasons, and then be conducive to accurately calculate
The loss of generated energy caused by each reason and abandonment electricity.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The restriction to the utility model is not constituted.In the accompanying drawings:
Fig. 1 is a kind of structural block diagram of the device of determining Wind turbines limit power data provided by the embodiment of the utility model
Figure；
Fig. 2 is a kind of structural representation of the device of determining Wind turbines limit power data provided by the embodiment of the utility model
Figure.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached
Figure, is described in further details the utility model.Here, the exemplary embodiment and its explanation of the utility model are for solving
The utility model is released, but is not intended to limit the scope of the present invention.
In the utility model embodiment, a kind of device of determining Wind turbines limit power data is provided, such as Fig. 1 institute
Show, which includes:
Curve acquires equipment 101, for obtaining the operation data of Wind turbines, obtains Wind turbines in standard air density
Under power characteristic；
Period determines equipment 102, for being based on the power characteristic and the operation data, determines the wind turbine
The limit power periods of group；
Period identifies equipment 103, when in the limit power periods of the Wind turbines, determining that unit factor limits power
Section and power grid factor limit power periods.
As shown in Figure 1 it is found that in the utility model embodiment, acquisition Wind turbines first are under standard air density
Power characteristic and operation data, so based under standard air density power characteristic and operation data determine wind
Then the limit power periods of motor group in the limit power periods of Wind turbines, determine unit factor limit power periods and power grid
Factor limits power periods, proposes a kind of limit power periods based on Wind turbines to identify unit factor limit power periods and electricity
The technical solution of net factor limit power periods.Be conducive to the limit power data of unit caused by accurately distinguishing different reasons, Jin Eryou
It is lost and abandonment electricity conducive to generated energy caused by each reason is accurately calculated.
When it is implemented, above-mentioned operation data may include following parameter: target power instructs Pgi, actual power Pi, machine
Cabin wind speed Vi, gearbox temperature, box bearing temperature, cabin temperature and tower oscillation amplitude data etc..
When it is implemented, above-mentioned curve acquisition equipment can be receiving device or communication equipment, for receiving or obtaining wind
Power characteristic of the operation data and acquisition Wind turbines of motor group under standard air density.Specifically, above-mentioned function
Rate characteristic curve can be the generation of the equipment except above-mentioned apparatus, for example, the equipment except above-mentioned apparatus is first by operation data
In abnormal condition data reject after, the current air speed data in operation data is converted as the wind speed under standard air density
Data can convert air speed data by formula (1), then be fitted to obtain power spy of the Wind turbines under standard air density
Linearity curve, and then above-mentioned curve acquisition equipment directly receives or obtains the power characteristic song of the transmission of the equipment except above-mentioned apparatus
Line.Specifically, the equipment except above-mentioned apparatus can be single-chip microcontroller (for example, 80C51 single-chip microcontroller), dsp chip (for example,
TMS320 series DSP chip) etc. equipment.
Wherein, VniFor conversion to the wind speed under standard air density, ViFor actual wind speed, ρiFor actual air density, ρ0For
Standard air density.
When it is implemented, in the present embodiment, as shown in Fig. 2, the above-mentioned period determines that equipment 102 includes coming really with flowering structure
The limit power periods of the fixed Wind turbines:
Wind speed acquires equipment (not shown), for obtaining current machine of the Wind turbines under standard air density
Cabin wind speed；Specifically, the current nacelle wind speed under standard air density refers to current nacelle wind speed under standard air density
Nacelle wind speed data after conversion, specifically the process of conversion can be handled by the other equipment except above-mentioned apparatus for this, wind speed
Acquisition equipment can be receiving device or communication equipment, and wind speed acquisition equipment is directly received or obtained under standard air density
Current nacelle wind speed.
Power obtains equipment 1021, sends out power for obtaining the current of the Wind turbines, wherein the Wind turbines
Current power of sending out be to be obtained based on the current nacelle wind speed and the power characteristic；Specifically, the power obtains
It takes equipment to can be receiving device or communication equipment, sends out power, Wind turbines for receiving or obtaining the current of Wind turbines
Current power of sending out can handle to obtain by the equipment except above-mentioned apparatus, power obtains on equipment directly receives or obtain
It states the current of Wind turbines that the equipment except device is sent and sends out power.Equipment except above-mentioned apparatus can be single-chip microcontroller
The equipment such as (for example, 80C51 single-chip microcontroller), dsp chip (for example, TMS320 series DSP chip).
First comparator 1022, for inputting the practical active power and rated active power of the Wind turbines, in institute
When stating the practical active power of Wind turbines less than rated active power, high level signal is exported, otherwise, output low level letter
Number；
Second comparator 1023, for input the Wind turbines practical active power and the Wind turbines it is current
Power can be sent out, when the practical active power of the Wind turbines is less than the Wind turbines current and sends out power, output is high
Otherwise level signal exports low level signal；
First with door 1024, the output end of the first comparator and second comparator is defeated with door with described first
Enter end connection, described first is used for door, the first comparator and second comparator export high level signal and
The practical active power be greater than 0 in the case where (the practical active power described at this time less than rated active power, described actually have
Function power is less than power and the practical active power of can currently sending out and is greater than 0), exports high level signal, described first and
The high level signal of door output indicates that present period is the limit power periods of the Wind turbines.
When it is implemented, after counting the limit power periods of Wind turbines, in the present embodiment, as shown in Fig. 2, when above-mentioned
Section identification equipment 103 include being come in the limit power periods of Wind turbines with flowering structure, determine unit factor limit power periods and
Power grid factor limits power periods:
Parameter acquisition equipment 1031, the operating value of the limit power and variable parameter for obtaining the Wind turbines, wherein institute
It states limit power and variable parameter and refers to that the self-defect of the Wind turbines leads to the parameter for limiting power；For example, the limit power becomes
Measuring parameter may include: gearbox temperature, box bearing temperature, cabin temperature and tower oscillation amplitude data.Specifically,
The parameter acquisition equipment 1031 can be different types of sensor (for example, temperature sensor, amplitude sensor etc.), with acquisition
Limit the operating value of power and variable parameter；The parameter acquisition equipment 1031 can also be receiving device or communication equipment, directly receive
Or obtain the operating value for the limit power and variable parameter that the equipment except above-mentioned apparatus is sent.
Third comparator 1032, for inputting the operating value for limiting power and variable parameter and the limit power and variable parameter
The operating value of corresponding upper threshold, the arbitrary parameter in the limit power and variable parameter is greater than in the corresponding threshold value of the parameter
In limited time, high level signal is exported, otherwise, exports low level signal；
4th comparator 1033, for inputting the operating value for limiting power and variable parameter and the limit power and variable parameter
Corresponding bottom threshold, in the case where the operating value of the arbitrary parameter in the limit power and variable parameter is less than the corresponding threshold value of the parameter
In limited time, high level signal is exported, otherwise, exports low level signal；
Or door 1034, the output end and described or door the input terminal of the third comparator and the 4th comparator connect
It connects, described or door is used for, in the third comparator and/or the 4th comparator output high level signal (at this point, in wind
In the limit power periods of motor group, the operating value for limiting the arbitrary parameter in power and variable parameter is greater than in the corresponding threshold value of the parameter
Limit is less than the corresponding bottom threshold of the parameter), high level signal is exported, otherwise, exports low level signal；
Second with door 1035, described or door output end and described first with the output end of door with described second and door
Input terminal connection, described second is used for door, in described first and door output high level signal and described or door output high level
When signal, high level signal is exported, wherein described second indicates that present period is unit factor with the high level signal that door exports
Limit power periods；
Phase inverter 1036, the input terminal of the phase inverter are connect with described or door output end, the phase inverter for pair
The signal of described or door output negates；
Third and door 1037, the output end of the phase inverter and described first with the output end of door with the third and door
Input terminal connection, the third is used for door, in described first and door output high level signal and phase inverter output height
When level signal, high level signal is exported, wherein the third and the high level signal of door output indicate that present period is power grid
Factor limits power periods, i.e., in the limit power periods of Wind turbines, by the period other than unit factor limits power periods
Power periods are limited for power grid factor.
When it is implemented, above-mentioned comparator can be realized using the chip of model LM339.
When it is implemented, the operation data of Wind turbines is unit factor limit power number in unit factor limit power periods
According to the operation data of Wind turbines is power grid factor limit power data in power grid factor limit power periods.
The utility model embodiment realizes following technical effect: acquisition Wind turbines first are under standard air density
Power characteristic and operation data, and then the power characteristic based on Wind turbines under standard air density and operation number
According to the limit power periods for determining Wind turbines, then, in the limit power periods of Wind turbines, when determining that unit factor limits power
Section and power grid factor limit power periods, propose a kind of limit power periods based on Wind turbines to identify that unit factor limits power
The technical solution of period and power grid factor limit power periods.Be conducive to the limit power number of unit caused by accurately distinguishing different reasons
According to, so be conducive to generated energy caused by accurately calculating each reason loss and abandonment electricity, be conducive to for promoted Wind turbines and
The generated energy of wind power plant provides basic data support.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, the utility model embodiment can have various modifications and variations.All spirit in the utility model
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of device of determining Wind turbines limit power data characterized by comprising
Curve acquires equipment, for obtaining the operation data of Wind turbines, obtains function of the Wind turbines under standard air density
Rate characteristic curve；
Period determines equipment, for being based on the power characteristic and the operation data, determines the limit of the Wind turbines
Power periods；
Period identifies equipment, in the limit power periods of the Wind turbines, determining unit factor limit power periods and electricity
Net factor limits power periods.
2. determining the device of Wind turbines limit power data as described in claim 1, which is characterized in that the period determination is set
It is standby, comprising:
Wind speed acquires equipment, for obtaining current nacelle wind speed of the Wind turbines under standard air density；
Power obtains equipment, sends out power for obtaining the current of the Wind turbines, wherein the current of the Wind turbines can
Sending out power is obtained based on the current nacelle wind speed and the power characteristic；
First comparator, for inputting the practical active power and rated active power of the Wind turbines, in the wind turbine
When the practical active power of group is less than rated active power, high level signal is exported, otherwise, exports low level signal；
Second comparator, practical active power and the current of the Wind turbines for inputting the Wind turbines send out function
Rate, the Wind turbines practical active power be less than the Wind turbines it is current send out power when, output high level letter
Number, otherwise, export low level signal；
First and door, the output end of the first comparator and second comparator connects with described first with the input terminal of door
It connects, described first is used for door, exports high level signal and the reality in the first comparator and second comparator
In the case that border active power is greater than 0, high level signal is exported, when the high level signal that described first and door export indicates current
Section is the limit power periods of the Wind turbines.
3. determining the device of Wind turbines limit power data as claimed in claim 2, which is characterized in that the period identification is set
It is standby, comprising:
Parameter acquisition equipment, the operating value of the limit power and variable parameter for obtaining the Wind turbines, wherein the limit power
Variable parameter refers to that the self-defect of the Wind turbines leads to the parameter for limiting power；
Third comparator, for inputting the operating value and the corresponding threshold of the limit power and variable parameter of the limit power and variable parameter
It is worth the upper limit, it is defeated in the operating value for limiting the arbitrary parameter in power and variable parameter upper threshold corresponding greater than the parameter
Otherwise high level signal out exports low level signal；
4th comparator, for inputting the operating value and the corresponding threshold of the limit power and variable parameter of the limit power and variable parameter
It is worth lower limit, it is defeated in the operating value for limiting the arbitrary parameter in power and variable parameter bottom threshold corresponding less than the parameter
Otherwise high level signal out exports low level signal；
Or door, the output end of the third comparator and the 4th comparator are connect with described or door input terminal, it is described or
Door is used for, and in the third comparator and/or the 4th comparator output high level signal, exports high level signal, no
Then, low level signal is exported；
Second and door, described or door output end and described first connects with described second with the input terminal of door with the output end of door
It connects, described second is used for door, defeated when described first exports high level signal and described or door output high level signal with door
High level signal out, wherein when the described second high level signal expression present period exported with door is that unit factor limits power
Section；
Phase inverter, the input terminal of the phase inverter are connect with described or door output end, and the phase inverter is used for described or door
The signal of output negates；
Third and door, the output end of the phase inverter and the described first input terminal with the output end of door with the third and door
Connection, the third are used for door, in described first and door output high level signal and phase inverter output high level signal
When, export high level signal, wherein the third and the high level signal of door output indicate that present period is that power grid factor limits function
The rate period.
4. determining the device of Wind turbines limit power data as claimed in claim 3, which is characterized in that the limit power and variable
Parameter includes: gearbox temperature, box bearing temperature, cabin temperature and tower oscillation amplitude data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821940767.2U CN208985211U (en) | 2018-11-23 | 2018-11-23 | Determine the device of Wind turbines limit power data |
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| CN201821940767.2U CN208985211U (en) | 2018-11-23 | 2018-11-23 | Determine the device of Wind turbines limit power data |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109409783A (en) * | 2018-11-23 | 2019-03-01 | 华北电力科学研究院有限责任公司 | Determine method, apparatus, equipment and the storage medium of Wind turbines limit power data |
| CN110518642A (en) * | 2019-09-24 | 2019-11-29 | 国电联合动力技术有限公司 | Consider the wind power plant intelligent dispatching method and device of gear-box oil temperature |
| CN111911352A (en) * | 2020-05-11 | 2020-11-10 | 宁波大学 | Airflow generation wind power generation method |
| CN113204279A (en) * | 2021-04-23 | 2021-08-03 | 山东英信计算机技术有限公司 | Method, system, device and medium for improving server efficiency based on redundant power supply |
-
2018
- 2018-11-23 CN CN201821940767.2U patent/CN208985211U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109409783A (en) * | 2018-11-23 | 2019-03-01 | 华北电力科学研究院有限责任公司 | Determine method, apparatus, equipment and the storage medium of Wind turbines limit power data |
| CN110518642A (en) * | 2019-09-24 | 2019-11-29 | 国电联合动力技术有限公司 | Consider the wind power plant intelligent dispatching method and device of gear-box oil temperature |
| CN111911352A (en) * | 2020-05-11 | 2020-11-10 | 宁波大学 | Airflow generation wind power generation method |
| CN111911352B (en) * | 2020-05-11 | 2023-02-28 | 宁波大学 | Airflow generation wind power generation method |
| CN113204279A (en) * | 2021-04-23 | 2021-08-03 | 山东英信计算机技术有限公司 | Method, system, device and medium for improving server efficiency based on redundant power supply |
| CN113204279B (en) * | 2021-04-23 | 2022-12-02 | 山东英信计算机技术有限公司 | Method, system, device and medium for improving server efficiency based on redundant power supply |
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