CN108412689B - Wind power plant load distribution method - Google Patents
Wind power plant load distribution method Download PDFInfo
- Publication number
- CN108412689B CN108412689B CN201810334367.5A CN201810334367A CN108412689B CN 108412689 B CN108412689 B CN 108412689B CN 201810334367 A CN201810334367 A CN 201810334367A CN 108412689 B CN108412689 B CN 108412689B
- Authority
- CN
- China
- Prior art keywords
- wind power
- load
- power plant
- current
- model group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000010248 power generation Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/10—Purpose of the control system
- F05B2270/111—Purpose of the control system to control two or more engines simultaneously
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to the field of wind power generation, and provides a load distribution method for a wind power plant.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a load distribution method for a wind power plant.
Background
With the development of wind power generation technology and the development of a wind power plant group dispatching automation control system, the dispatching automation system can issue a planned load to each wind power plant in real time, each wind power plant needs to control the current load of the wind power plant according to the dispatching issued planned load, if the wind power plant is only one type, the dispatching planned load can be directly issued to a wind power plant power control system, the wind power plant power control system distributes the dispatching issued planned load to each fan, if the wind power plant is provided with two or more types, a set of wind power plant power control system needs to be installed for each type of wind power plant, the dispatching issued planned load needs to be distributed to each type of wind power plant power control system according to the percentage of the installed capacity of each type of wind power plant, and the planning load distribution proportion of each type at present is fixed proportion distribution and cannot be dynamically adjusted.
If the wind power plant has two or more types, because the wind generating sets of different manufacturers have different generating efficiencies at different wind speed sections, if the load is strictly distributed according to the percentage of the installed capacity of each type of set to the installed capacity of the wind power plant, the generated energy loss of the wind power plant can be caused, for example: the wind power plant has two types, namely 67 direct drive units and 67 double feed units, the direct drive units are below rated wind speed, the generating efficiency is higher than that of the double feed units, the generating efficiency of the double feed units is higher than that of the direct drive units, if the current wind speed is 8 meters, the scheduling load is 14 thousands, the load of the 67 direct drive units can reach about 8 thousands, the load of the double feed units can only reach about 6 thousands, and if the loads of the two types are distributed according to a fixed proportion, the method is characterized in that: 50% of the planned load of each model distribution and scheduling can cause the limited power operation of 67 direct-drive units, and 67 double-feed units are in a state that the planned load is not executed in place, so that the total load of the wind power plant cannot reach the maximum load of the wind power plant, and the generated energy of about 10000 degrees is lost in each hour.
Disclosure of Invention
The invention aims to provide a load distribution method for a wind power plant, which aims to improve the power generation efficiency of the wind power plant and reduce the power generation loss of the wind power plant.
The load distribution method for the wind power plant is suitable for the wind power plants with two or more types, and comprises the following specific contents:
step 1: and starting.
Step 2: judging whether the current planned load of the wind power plant is larger than the current load of the wind power plant, if the current planned load of the wind power plant is smaller than or equal to the current load of the wind power plant, distributing the load according to the percentage of the planned load of each machine type group of the wind power plant to the installed capacity of the wind power plant; and (3) if the current planned load of the wind power plant is greater than the current load of the wind power plant, judging whether each model group of the wind power plant is limited in load or not.
And step 3: sequentially judging whether each model group of the wind power plant is in a load limiting state, if the current model group is in the load limiting state, the current model group planned load is the current model group load, the current planned load of the wind power plant is added, the current load of the wind power plant is reduced, the planned loads of other model groups are the current loads of other model groups, and then the step 1 is started again after a period of time delay; and if the current machine type group is in the unlimited load state, re-entering the step 1, and repeating the steps in a circulating mode.
The load distribution method for the wind power plant further comprises the following steps: the method is characterized in that the load distribution proportion of each model group of the wind power plant is adjusted through a computer or mobile terminal electronic device or is automatically adjusted through computer software.
Description of the drawings:
the invention may be better understood from the following description of specific embodiments thereof taken in conjunction with the accompanying drawings, in which: other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings in which like or similar reference characters refer to the same or similar parts.
Fig. 1 is a schematic flow chart of a wind farm load distribution method.
In fig. 1: 100. starting; 200. judging whether the scheduling plan load is larger than the current load of the wind power plant or not; 201. scheduling the operation executed when the planned load is less than or equal to the current load of the wind power plant; 300. judging whether the model group N is limited in load or not; 301. the operation executed when the machine type group has N load limit; 400. and (5) delaying.
The specific implementation mode is as follows:
features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific configuration and algorithm set forth below, but rather covers any modification, replacement or improvement of elements, components or algorithms without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention.
Technical terms related to the embodiments of the present invention:
model group: the wind power generation sets in the wind power plant have the same type of wind power generation sets.
Model group N: representing each model group in the wind farm.
Scheduling the planning load: and the dispatching center issues the active or reactive planned value to the wind power plant.
Current load of the wind power plant: and the current active or reactive accumulated values of all wind generating sets in the wind power plant.
An embodiment of the present invention includes:
as shown in fig. 1, a specific implementation flow of the wind farm load distribution method provided by an embodiment of the present invention is as follows:
step 1: and starting.
Step 2: judging whether the scheduling plan load is greater than the current load of the wind power plant by 200, if the scheduling plan load is less than or equal to the current load of the wind power plant, entering operation 201 executed when the scheduling plan load is less than or equal to the current load of the wind power plant, and distributing the load according to the load distribution proportion of each machine type group in percentage of the installed capacity of the wind power plant; and if the scheduling plan load is less than or equal to the current load of the wind power plant, the step 3 is carried out to judge whether the model group N is limited by the load 300.
And step 3: judging whether the model group N is in load limit 300, judging each model group in the wind power plant once, if the model group N is in a load limit state, entering operation 301 executed when the model group N is in load limit, wherein the model group N planned load is the model group N current load + (scheduling planned load-wind power plant current load), and the other model group planned load is the other model group current load, then entering time delay 400, and after time delay for a period of time, entering step 1 again and starting 100; and if the model group N is in the unlimited load state, directly entering the step 1 to start 100, and repeating the steps in a circulating way.
The content of an embodiment of the present invention further includes: the method is characterized in that the load distribution proportion of each model group of the wind power plant is adjusted through a computer or mobile terminal electronic device or is automatically adjusted through computer software.
Claims (3)
1. A wind power plant load distribution method is suitable for a wind power plant with more than two types of wind driven generator sets, and is characterized by comprising the following steps:
step 1: starting;
step 2: judging whether the current planned load of the wind power plant is greater than the current load of the wind power plant; if the current planned load of the wind power plant is less than or equal to the current load of the wind power plant, distributing the load according to the percentage of the planned load of each model group of the wind power plant to the installed capacity of the wind power plant; if the current planned load of the wind power plant is larger than the current load of the wind power plant, the step 3 is carried out to judge whether each model group of the wind power plant is limited in load;
and step 3: sequentially judging whether each model group of the wind power plant is in a load limiting state, if the current model group is in the load limiting state, the current model group planned load is the current model group load, the current planned load of the wind power plant is added, the current load of the wind power plant is reduced, the planned loads of other model groups are the current loads of other model groups, and then the step 1 is started again after a period of time delay; and if the current machine type group is in the unlimited load state, re-entering the step 1.
2. The load distribution method for the wind power plant according to claim 1, wherein in the step 2, the load distribution proportion of each type group of the wind power plant is adjusted through a computer or a mobile terminal electronic device.
3. The load distribution method for the wind power plant according to claim 1, wherein in the step 2, the load distribution proportion of each model group of the wind power plant is automatically adjusted through computer software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334367.5A CN108412689B (en) | 2018-04-16 | 2018-04-16 | Wind power plant load distribution method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334367.5A CN108412689B (en) | 2018-04-16 | 2018-04-16 | Wind power plant load distribution method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108412689A CN108412689A (en) | 2018-08-17 |
| CN108412689B true CN108412689B (en) | 2021-11-30 |
Family
ID=63135688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810334367.5A Active CN108412689B (en) | 2018-04-16 | 2018-04-16 | Wind power plant load distribution method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412689B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090261588A1 (en) * | 2008-04-22 | 2009-10-22 | Repower Systems Ag | Method and system for operating a wind energy installation |
| CN103726988A (en) * | 2012-10-12 | 2014-04-16 | 通用电气公司 | System and method for wind power dispatch in a wind farm |
| CN107732984A (en) * | 2017-11-13 | 2018-02-23 | 国电联合动力技术有限公司 | A kind of multi-model Wind turbines load in mixture wind power control method |
-
2018
- 2018-04-16 CN CN201810334367.5A patent/CN108412689B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090261588A1 (en) * | 2008-04-22 | 2009-10-22 | Repower Systems Ag | Method and system for operating a wind energy installation |
| CN103726988A (en) * | 2012-10-12 | 2014-04-16 | 通用电气公司 | System and method for wind power dispatch in a wind farm |
| CN107732984A (en) * | 2017-11-13 | 2018-02-23 | 国电联合动力技术有限公司 | A kind of multi-model Wind turbines load in mixture wind power control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108412689A (en) | 2018-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102684224B (en) | Unit combination method for resolving and considering wind power volatility | |
| US10320196B2 (en) | Wind power plant, and a method for increasing the reactive power capability of a wind power plant | |
| CN103109085A (en) | Control of a wind power plant | |
| CN108979958B (en) | Wind power plant intelligent yaw control method and system based on energy management | |
| CN113036822B (en) | Wind storage coordination control method, system, equipment and storage medium | |
| CN108412689B (en) | Wind power plant load distribution method | |
| Rose et al. | Challenges of integrating large amounts of wind power | |
| CN116683486A (en) | Method and device for power scheduling control of cluster energy storage system | |
| CN110380423A (en) | A kind of wind farm group Reactive-power control object priority determines method and device | |
| CN113824132B (en) | Primary frequency modulation method and system for new energy station with energy management function | |
| CN108022055A (en) | A kind of micro-capacitance sensor economic load dispatching method based on particle group model | |
| CN114221379A (en) | Reactive voltage control method and system for wind storage combined system in isolated network black start | |
| CN114142535A (en) | Scheduling method, system, equipment and medium for micro-grid source grid load storage | |
| CN103887827A (en) | Method and device for controlling output force of power plant unit | |
| CN108631365B (en) | Wind power plant power control method and system | |
| CN108258734B (en) | Robust optimal scheduling method based on wind power interval prediction | |
| CN109687533B (en) | Microgrid active power cascade distribution control method based on wind power generation and photovoltaic power generation | |
| CN104377728A (en) | Coordination control method for grid connection non-Internet-surfing distribution type wind generating sets | |
| CN204992914U (en) | Power generation device | |
| CN104269887B (en) | The smart allocation method of wind field battery detecting | |
| Sharma et al. | Predictive control of wind turbines with storage | |
| CN109995281A (en) | A kind of control method, equipment and the readable storage medium storing program for executing of Wind turbines fault recovery | |
| Qi et al. | Energy management based on multi-agent for independent DC micro-grid with wind solar power | |
| CN114301079B (en) | Energy storage control method, equipment and medium participating in grid peak regulation and frequency modulation cross application | |
| CN113436028B (en) | Power resource analysis method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |