CN110474328A - A kind of grid-connected control method and system of new energy power station - Google Patents
A kind of grid-connected control method and system of new energy power station Download PDFInfo
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- CN110474328A CN110474328A CN201910768857.0A CN201910768857A CN110474328A CN 110474328 A CN110474328 A CN 110474328A CN 201910768857 A CN201910768857 A CN 201910768857A CN 110474328 A CN110474328 A CN 110474328A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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Abstract
This application discloses a kind of grid-connected control method of new energy power station and system, the grid-connected control method of the new energy power station is applied to distribution network data and manages center, comprising: receives the information data of specific load in the network load that power station monitoring point is sent；Information data is that power station monitoring point is determined by comparing the actual monitoring data of operation of power networks parameter with daily normal data is preset；Specific load is the non-regularity load occurred at random；The connect-in strategy of new energy power station is generated according to information data；Judge whether the operation of power networks performance boost rate of connect-in strategy is higher than preset threshold；If so, executing connect-in strategy.The application by by the actual monitoring data of operation of power networks parameter with preset the information data that specific load in power grid is determined and daily normal data is compared, and then it the problems such as solving shortage of electric power caused by specific load, effectively increases operation of power networks efficiency with the grid-connected scheme of new energy power station and reduces costs.
Description
Technical field
This application involves power grid interconnection technology field, in particular to the grid-connected control method of a kind of new energy power station and it is
System.
Background technique
Generally, network load can be analyzed to base load and specific load.Wherein, base load is longer lasting
Certain total amount, the load with certain total development trend are kept in time, with certain stability, periodicity and season
Property；And on the contrary, specific load does not have law characteristic, such as air conditioner load, festivals or holidays load, Accidents Disasters load, work then
Improper impact load of industry etc..Currently, the research of load prediction focuses mostly in the prediction technique direction of base load, and to special
The research of load is very few, and the processing simultaneously for specific load also lacks effective measures, whole actual motion higher cost.
It has been that those skilled in the art need to pay close attention in consideration of it, providing a kind of scheme for solving above-mentioned technical problem
's.
Summary of the invention
The grid-connected control method and system for being designed to provide a kind of new energy power station of the application, so as to new energy electricity
Grid-connected form of standing successfully manages in network load caused by specific load the problems such as shortage of electric power, effectively improves operation of power networks effect
Rate simultaneously reduces cost.
In order to solve the above technical problems, in a first aspect, this application discloses a kind of grid-connected control method of new energy power station,
Center is managed applied to distribution network data, comprising:
Receive the information data of specific load in the network load that power station monitoring point is sent；The information data is the electricity
Monitoring point of standing is determined by comparing the actual monitoring data of operation of power networks parameter with daily normal data is preset；It is described special negative
Lotus is the non-regularity load occurred at random；
The connect-in strategy of new energy power station is generated according to the information data；
Judge whether the operation of power networks performance boost rate of the connect-in strategy is higher than preset threshold；
If so, executing the connect-in strategy.
Optionally, the operation of power networks performance boost rate for judging the connect-in strategy whether be higher than preset threshold it
Afterwards, further includes:
If it is not, then executing load bridging scheme.
Optionally, before the connect-in strategy for generating new energy power station according to the information data, further includes:
Cleaning pretreatment is carried out to the information data.
It is optionally, described that cleaning pretreatment is carried out to the information data, comprising:
Acnode data cleansing and marginalisation data cleansing are carried out to the information data.
Optionally, the information data for receiving specific load in the network load that power station monitoring point is sent, comprising:
Receive the molding time section and load value of specific load in the network load that the power station monitoring point is sent.
Disclosed herein as well is a kind of grid-connected control methods of new energy power station, are applied to power station monitoring point, comprising:
Obtain the actual monitoring data of operation of power networks parameter；
Compare the actual monitoring data and presets daily normal data to determine the information of specific load in network load
Data；The specific load is the non-regularity load occurred at random；
By the information data be sent to distribution network data control center, so as to the distribution network data control center according to
The information data generates the connect-in strategy of new energy power station, high in the operation of power networks performance boost rate for determining the connect-in strategy
When preset threshold, the connect-in strategy is executed.
Optionally, the actual monitoring data for obtaining operation of power networks parameter, comprising:
Obtain conveying voltage, conveying electric current, power loss, the actual monitoring data of electric power summation.
Second aspect disclosed herein as well is a kind of grid-connection control system of new energy power station, including power station monitoring point, is matched
Electric network data manages center and new energy power station；
The power station monitoring point is used to obtain the actual monitoring data of operation of power networks parameter, the actual monitoring data
With preset daily normal data to determine the information data of specific load in network load, and be sent to the distribution network data pipe
Control center；The specific load is the non-regularity load occurred at random；
Distribution network data control center is used to be directed to the new energy power station according to information data generation
Connect-in strategy executes the grid-connected side when the operation of power networks performance boost rate for determining the connect-in strategy is higher than preset threshold
Case.
Optionally, the new energy power station includes any of the following or any combination:
Wind power station, natural flow station, photo-voltaic power generation station.
Optionally, distribution network data control center is also used to: in the operation of power networks performance for determining the connect-in strategy
When enhancing rate is not higher than the preset threshold, load bridging scheme is executed.
The grid-connected control method of new energy power station provided herein is applied to distribution network data and manages center, comprising:
Receive the information data of specific load in the network load that power station monitoring point is sent；The information data is the power station monitoring point
It is determined by comparing the actual monitoring data of operation of power networks parameter with daily normal data is preset；The specific load is random
The non-regularity load of appearance；The connect-in strategy of new energy power station is generated according to the information data；Judge the connect-in strategy
Operation of power networks performance boost rate whether be higher than preset threshold；If so, executing the connect-in strategy.
As it can be seen that the actual monitoring data of operation of power networks parameter by being compared by the application with daily normal data is preset
And determine the information data of specific load in power grid, and then made to solve specific load with the grid-connected scheme of new energy power station
At shortage of electric power the problems such as, effectively increase operation of power networks efficiency and reduce costs.New energy electricity provided herein
The grid-connection control system stood equally has above-mentioned beneficial effect.
Detailed description of the invention
In order to illustrate more clearly of the technical solution in the prior art and the embodiment of the present application, below will to the prior art and
Attached drawing to be used is needed to make brief introduction in the embodiment of the present application description.Certainly, in relation to the attached drawing of the embodiment of the present application below
A part of the embodiment in only the application of description is not paying creativeness to those skilled in the art
Under the premise of labour, other attached drawings can also be obtained according to the attached drawing of offer, other accompanying drawings obtained also belong to the application
Protection scope.
Fig. 1 is a kind of flow chart of the grid-connected control method of new energy power station disclosed in the embodiment of the present application；
Fig. 2 is the flow chart of the grid-connected control method of another new energy power station disclosed in the embodiment of the present application；
Fig. 3 is a kind of structural block diagram of the grid-connection control system of new energy power station disclosed in the embodiment of the present application.
Specific embodiment
The core of the application is to provide the grid-connected control method and system of a kind of new energy power station, so as to new energy electricity
Grid-connected form of standing successfully manages in network load caused by specific load the problems such as shortage of electric power, effectively improves operation of power networks effect
Rate simultaneously reduces cost.
In order to which technical solutions in the embodiments of the present application is more clearly and completely described, below in conjunction with this Shen
Please attached drawing in embodiment, technical solutions in the embodiments of the present application is introduced.Obviously, described embodiment is only
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Currently, the research of load prediction focuses mostly in the prediction technique direction of base load, and the research to specific load
Very few, the processing simultaneously for specific load also lacks effective measures, whole actual motion higher cost.In consideration of it, this Shen
A kind of grid-connected control method of new energy power station please be provide, can effectively be solved the above problems.
Shown in Figure 1, the embodiment of the present application discloses a kind of grid-connected control method of new energy power station, is applied to distribution
Network data manages center, specifically includes that
S11: the information data of specific load in the network load that power station monitoring point is sent is received；Information data is power station prison
Measuring point is determined by comparing the actual monitoring data of operation of power networks parameter with daily normal data is preset；Specific load is random
The non-regularity load of appearance.
Specifically, multiple power station monitoring points are equipped in power grid.It each power station monitoring point can be to the operation of power networks of position
Parameter is measured in real time.It is compared, can be obtained with daily normal data is preset by the actual monitoring data that will acquire
The information data of specific load in network load.
Actual monitoring data are the information data of total load in power grid, and total load includes base load and special negative
Lotus.As before, base load is that certain total amount, the load with certain total development trend are kept in longer duration,
With certain stability, periodicity and seasonality；And on the contrary, specific load does not have law characteristic then, such as air-conditioning is born
Lotus, festivals or holidays load, Accidents Disasters load, the improper impact load of industry etc..Presetting daily normal data is according to basic
Load and preset daily normal data.Actual monitoring data are compared with daily normal data as a result, spy can be obtained
The information data of different load.
S12: the connect-in strategy of new energy power station is generated according to information data.
After obtaining the information data of specific load, in conjunction with actual monitoring data can specific aim make it is corresponding
The connect-in strategy of new energy power station.Specifically, connect-in strategy can be specifically used for the grid-connected new energy power station of specified participation and should
The output power of new energy power station.
S13: judge whether the operation of power networks performance boost rate of connect-in strategy is higher than preset threshold；If so, into S14.
It, can operation of power networks performance boost to the connect-in strategy after determining the connect-in strategy of new energy power station
Situation carries out estimation and simulation and forecast, if it is expected that the connect-in strategy can enable operation of power networks performance be highly improved, it can be into
Enter step S14 to execute the connect-in strategy.
S14: connect-in strategy is executed.
The grid-connected control method of new energy power station provided by the embodiment of the present application is applied to distribution network data and manages center,
It include: the information data for receiving specific load in the network load that power station monitoring point is sent；Information data is logical for power station monitoring point
It crosses and compares the actual monitoring data of operation of power networks parameter and determined with daily normal data is preset；Specific load occurs at random
Non-regularity load；The connect-in strategy of new energy power station is generated according to information data；Judge the operation of power networks performance of connect-in strategy
Whether enhancing rate is higher than preset threshold；If so, executing connect-in strategy.
As it can be seen that the actual monitoring data of operation of power networks parameter by being compared by the application with daily normal data is preset
And determine the information data of specific load in power grid, and then made to solve specific load with the grid-connected scheme of new energy power station
At shortage of electric power the problems such as, effectively increase operation of power networks efficiency and reduce costs.
On the basis of the above, in the grid-connected control method of new energy power station provided by the embodiment of the present application, make
Also wrapped after whether the operation of power networks performance boost rate for judging connect-in strategy is higher than preset threshold for a kind of specific embodiment
It includes:
If it is not, then executing load bridging scheme.
Specifically, in the present embodiment, if the prepared connect-in strategy of information data according to specific load can not take
Ideal operation of power networks performance boost effect is obtained, then load bridging scheme can be taken to solve to work as using load bridging device
Preceding electrical problem.Wherein, load bridging device may particularly include each subtransmission line connecting with main power transmission network.
On the basis of the above, in the grid-connected control method of new energy power station provided by the embodiment of the present application, make
For a kind of specific embodiment, before the connect-in strategy for generating new energy power station according to information data, further includes:
Cleaning pretreatment is carried out to information data.
Specifically, in order to improve specific load information data accuracy, generally obtain better operation of power networks performance
Effect is promoted, cleaning pretreatment also has been carried out to the information data of specific load in advance in the present embodiment.
Further, as a kind of specific embodiment, cleaning pretreatment is carried out to information data, comprising: to information data
Carry out acnode data cleansing and marginalisation data cleansing.Wherein, acnode data are the data for being detached from other data and forming acnode, more
For wrong data；Marginalisation data are to jump to close on data to specific load.
On the basis of the above, in the grid-connected control method of new energy power station provided by the embodiment of the present application, make
For a kind of specific embodiment, the information data of specific load in the network load that power station monitoring point is sent is received, comprising:
Receive the molding time section and load value of specific load in the network load that power station monitoring point is sent.
Shown in Figure 2, the embodiment of the present application discloses the grid-connected control method of another new energy power station, is applied to electricity
It stands monitoring point, specifically includes that
S21: the actual monitoring data of operation of power networks parameter are obtained.
S22: compare actual monitoring data and preset daily normal data to determine the information of specific load in network load
Data；Specific load is the non-regularity load occurred at random.
S23: being sent to distribution network data control center for information data, so that distribution network data manages Central Radical it is believed that breath
Data generate the connect-in strategy of new energy power station, are higher than preset threshold in the operation of power networks performance boost rate for determining connect-in strategy
When, execute connect-in strategy.
As it can be seen that the actual monitoring data of operation of power networks parameter by being compared by the application with daily normal data is preset
And determine the information data of specific load in power grid, and then made to solve specific load with the grid-connected scheme of new energy power station
At shortage of electric power the problems such as, effectively increase operation of power networks efficiency and reduce costs.
On the basis of the above, in the grid-connected control method of new energy power station provided by the embodiment of the present application, make
For a kind of specific embodiment, the actual monitoring data of operation of power networks parameter are obtained, comprising:
Obtain conveying voltage, conveying electric current, power loss, the actual monitoring data of electric power summation.
Shown in Figure 3, the embodiment of the present application discloses a kind of grid-connection control system of new energy power station, specifically includes that
Power station monitoring point 31, distribution network data control center 32 and new energy power station 33；
Power station monitoring point 31 is used to obtain the actual monitoring data of operation of power networks parameter, compares actual monitoring data and presets
Daily normal data is sent to distribution network data control center to determine the information data of specific load in network load；It is special
Different load is the non-regularity load occurred at random；
Distribution network data control center 32 is used to generate the connect-in strategy for being directed to new energy power station 33 according to information data,
When the operation of power networks performance boost rate for determining connect-in strategy is higher than preset threshold, connect-in strategy is executed.
As it can be seen that the actual monitoring data of operation of power networks parameter by being compared by the application with daily normal data is preset
And determine the information data of specific load in power grid, and then made to solve specific load with the grid-connected scheme of new energy power station
At shortage of electric power the problems such as, effectively increase operation of power networks efficiency and reduce costs.
On the basis of the above, in the grid-connected control method of new energy power station provided by the embodiment of the present application, make
For a kind of specific embodiment, new energy power station includes any of the following or any combination: wind power station, water generating
It stands, photo-voltaic power generation station.
On the basis of the above, in the grid-connected control method of new energy power station provided by the embodiment of the present application, make
For a kind of specific embodiment, distribution network data control center is also used to: in the operation of power networks performance boost rate for determining connect-in strategy
When not higher than preset threshold, load bridging scheme is executed.
The particular content of grid-connection control system about above-mentioned new energy power station, can refer to previously with regard to new energy power station
Being discussed in detail for grid-connected control method, just repeats no more here.
Each embodiment is described in a progressive manner in the application, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For equipment disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
.
It should be noted that in present specification, the relational terms of such as " first " and " second " etc are used merely to
One entity or operation and another entity or operate is distinguished, without necessarily requiring or implying these entities or
There are any actual relationship or orders between person's operation.In addition, the terms "include", "comprise" or its any other
Variant is intended to non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only
It including those elements, but also including other elements that are not explicitly listed, or further include for this process, method, object
Product or the intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...",
It is not precluded in the process, method, article or apparatus that includes the element that there is also other identical elements.
Technical solution provided herein is described in detail above.Specific case used herein is to this Shen
Principle and embodiment please is expounded, the present processes that the above embodiments are only used to help understand and its
Core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the application principle
Under, can also to the application, some improvement and modification can also be carried out, these improvement and modification are also fallen into the protection scope of the application.
Claims (10)
1. a kind of grid-connected control method of new energy power station, which is characterized in that be applied to distribution network data and manage center, comprising:
Receive the information data of specific load in the network load that power station monitoring point is sent；The information data is power station prison
Measuring point is determined by comparing the actual monitoring data of operation of power networks parameter with daily normal data is preset；The specific load is
The non-regularity load occurred at random；
The connect-in strategy of new energy power station is generated according to the information data；
Judge whether the operation of power networks performance boost rate of the connect-in strategy is higher than preset threshold；
If so, executing the connect-in strategy.
2. the grid-connected control method of new energy power station according to claim 1, which is characterized in that described in the judgement simultaneously
Whether the operation of power networks performance boost rate of net scheme is higher than after preset threshold, further includes:
If it is not, then executing load bridging scheme.
3. the grid-connected control method of new energy power station according to claim 1, which is characterized in that described according to the letter
Before the connect-in strategy for ceasing data generation new energy power station, further includes:
Cleaning pretreatment is carried out to the information data.
4. the grid-connected control method of new energy power station according to claim 3, which is characterized in that described to the Information Number
According to carrying out cleaning pretreatment, comprising:
Acnode data cleansing and marginalisation data cleansing are carried out to the information data.
5. the grid-connected control method of new energy power station according to any one of claims 1 to 4, which is characterized in that described to connect
Receive the information data of specific load in the network load that power station monitoring point is sent, comprising:
Receive the molding time section and load value of specific load in the network load that the power station monitoring point is sent.
6. a kind of grid-connected control method of new energy power station, which is characterized in that be applied to power station monitoring point, comprising:
Obtain the actual monitoring data of operation of power networks parameter；
Compare the actual monitoring data and presets daily normal data to determine the information data of specific load in network load；
The specific load is the non-regularity load occurred at random；
The information data is sent to distribution network data control center, so that distribution network data control center is according to
Information data generates the connect-in strategy of new energy power station, is higher than in the operation of power networks performance boost rate for determining the connect-in strategy pre-
If when threshold value, executing the connect-in strategy.
7. the grid-connected control method of new energy power station according to claim 6, which is characterized in that the acquisition operation of power networks
The actual monitoring data of parameter, comprising:
Obtain conveying voltage, conveying electric current, power loss, the actual monitoring data of electric power summation.
8. a kind of grid-connection control system of new energy power station, which is characterized in that including in power station monitoring point, the control of distribution network data
The heart and new energy power station；
The power station monitoring point is used to obtain the actual monitoring data of operation of power networks parameter, actual monitoring data and pre-
If daily normal data is sent in the distribution network data control with determining the information data of specific load in network load
The heart；The specific load is the non-regularity load occurred at random；
Distribution network data control center is used to be directed to the grid-connected of the new energy power station according to information data generation
Scheme executes the connect-in strategy when the operation of power networks performance boost rate for determining the connect-in strategy is higher than preset threshold.
9. the grid-connection control system of new energy power station according to claim 8, which is characterized in that the new energy power station packet
Include following any one or any combination:
Wind power station, natural flow station, photo-voltaic power generation station.
10. the grid-connection control system of new energy power station according to claim 8, which is characterized in that the distribution network data
Control center is also used to: when the operation of power networks performance boost rate for determining the connect-in strategy is not higher than the preset threshold, being held
Row load bridging scheme.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112865088A (en) * | 2021-01-29 | 2021-05-28 | 杭州市电力设计院有限公司余杭分公司 | Double-layer optimized scheduling method for power distribution network |
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