CN111852760B - Wind generating set operation control method and device and storage medium - Google Patents

Wind generating set operation control method and device and storage medium Download PDF

Info

Publication number
CN111852760B
CN111852760B CN201910334603.8A CN201910334603A CN111852760B CN 111852760 B CN111852760 B CN 111852760B CN 201910334603 A CN201910334603 A CN 201910334603A CN 111852760 B CN111852760 B CN 111852760B
Authority
CN
China
Prior art keywords
cut
wind generating
power grid
instruction
generating set
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
Application number
CN201910334603.8A
Other languages
Chinese (zh)
Other versions
CN111852760A (en
Inventor
曹学铭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinfeng Technology Co ltd
Original Assignee
Xinjiang Goldwind Science and Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xinjiang Goldwind Science and Technology Co Ltd filed Critical Xinjiang Goldwind Science and Technology Co Ltd
Priority to CN201910334603.8A priority Critical patent/CN111852760B/en
Publication of CN111852760A publication Critical patent/CN111852760A/en
Application granted granted Critical
Publication of CN111852760B publication Critical patent/CN111852760B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/303—Temperature
    • 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
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/303—Temperature
    • F05B2270/3032—Temperature excessive temperatures, e.g. caused by overheating
    • 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
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/32—Wind speeds
    • 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
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/335—Output power or torque
    • 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
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/337—Electrical grid status parameters, e.g. voltage, frequency or power demand
    • 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)
  • Wind Motors (AREA)

Abstract

The invention discloses a wind generating set operation control method, a device and a storage medium, wherein the method comprises the following steps: determining whether the target wind generating set can cause impact on the power grid after being cut out of the power grid; if the target wind generating set can cause impact on the power grid after being cut out of the power grid, controlling the target wind generating set to operate in a limited power mode; if the wind generating set is switched out of the power grid, judging whether the power grid switching-out instruction of the target wind generating set is in high priority relative to the power grid switching-out instructions of other wind generating sets to be switched out under the condition that the power grid switching-out instruction of the target wind generating set is effective; and if the power grid cut-out instruction of the target wind generating set is in a high priority level relative to the power grid cut-out instructions of other wind generating sets to be cut out, executing the cutter cutting operation on the target wind generating set. By adopting the embodiment of the invention, the impact on the power grid can be reduced, and the stable operation of the power grid can be maintained.

Description

Wind generating set operation control method and device and storage medium
Technical Field
The invention relates to the technical field of wind power generation, in particular to a method and a device for controlling the operation of a wind generating set and a storage medium.
Background
With the development of wind power generation technology, the loading capacity of a wind generating set is rapidly increased, and hidden dangers are brought to the safe and stable operation of a power grid when a large-area wind generating set is used for grid-connected power generation. One of the problems is that the environmental factors cannot meet the normal operation conditions of the wind generating set, so that the large-range wind generating set is disconnected in a short time period, impact is caused to a power grid, and the stable operation of the power grid is influenced.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a storage medium for controlling the operation of a wind generating set, which can control the wind generating set needing to be disconnected in a certain preset time (the length of the time can be determined according to respective requirements of different power grids) to be orderly disconnected, reduce the impact on the power grid and maintain the stable operation of the power grid.
In a first aspect, an embodiment of the present invention provides a method for controlling an operation of a wind turbine generator system, where the method includes:
in response to the received power grid switching-out instruction, determining whether the target wind generating set can cause impact on the power grid after switching out the power grid;
if the target wind generating set can cause impact on the power grid after being cut out of the power grid, controlling the target wind generating set to operate in a limited power mode;
if the wind generating set for cutting out the power grid exists in the limited power operation period, judging whether the power grid cutting-out instruction of the target wind generating set is in high priority relative to the power grid cutting-out instructions of other wind generating sets to be cut out under the condition that the power grid cutting-out instruction of the target wind generating set is effective;
and if the power grid cut-out instruction of the target wind generating set is in a high priority level relative to the power grid cut-out instructions of other wind generating sets to be cut out, executing the cutter cutting operation on the target wind generating set.
In one possible implementation of the first aspect, the method further comprises: if the target wind generating set cannot impact the power grid after being cut out of the power grid, executing a generator tripping operation on the target wind generating set; or/and if the power grid cut-out instruction of the target wind generating set is not in a high priority relative to the power grid cut-out instructions of other wind generating sets to be cut out, controlling the target wind generating set to continue to operate in a power limiting mode.
In one possible implementation manner of the first aspect, the grid cut-out instruction comprises a strong wind shutdown instruction, an over-ambient temperature shutdown instruction, and an over-ambient temperature shutdown instruction; the method comprises the following steps of judging whether a power grid cut-out instruction of a target wind generating set is in a high priority relative to power grid cut-out instructions of other wind generating sets to be cut out, wherein the steps comprise: if the power grid cut-out instruction of the target wind generating set is a strong wind stop instruction, judging whether the power grid cut-out instruction of at least one of other wind generating sets to be cut out is the strong wind stop instruction; if the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is a strong wind stop instruction, judging whether the wind speed of the target wind generating set is larger than the wind speeds of all other wind generating sets to be cut out which are to execute the strong wind stop instruction; if the wind speed of the target wind generating set is larger than the wind speeds of all other wind generating sets to be cut out of which the gale stop instruction is to be executed, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out; alternatively, the first and second electrodes may be,
and if the power grid cut-out instruction of the target wind generating set is a strong wind shutdown instruction, and the power grid cut-out instructions of other wind generating sets to be cut are all shutdown instructions with overhigh ambient temperature or shutdown instructions with overlow ambient temperature, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut.
In a possible implementation manner of the first aspect, the step of determining whether the grid cut-out instruction of the target wind turbine generator set is in a high priority level with respect to the grid cut-out instructions of other wind turbine generator sets to be cut out further includes: if the power grid cut-out instruction of the target wind generating set is the shutdown instruction with the overhigh environmental temperature, judging whether the power grid cut-out instructions of other wind generating sets to be cut out are all the shutdown instructions with the overhigh environmental temperature; if all the power grid cut-out instructions of other wind generating sets to be cut out are shutdown instructions with overhigh environmental temperature, judging whether the temperature of the target wind generating set is higher than the temperature of all other wind generating sets to be cut out which are subjected to shutdown instructions with overhigh environmental temperature; if the temperature of the target wind generating set is higher than the temperatures of all other wind generating sets to be cut out of which the environment temperature is too high to be executed and the shutdown instruction is executed, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out; or if the power grid cut-out instruction of the target wind generating set is an over-high ambient temperature shutdown instruction and the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is a strong wind shutdown instruction, determining that the power grid cut-out instruction of the target wind generating set is not in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out.
In a possible implementation manner of the first aspect, the step of determining whether the grid cut-out instruction of the target wind turbine generator set is in a high priority level with respect to the grid cut-out instructions of other wind turbine generator sets to be cut out further includes: if the power grid cut-out instruction of the target wind generating set is the shutdown instruction with the excessively low ambient temperature, judging whether the power grid cut-out instructions of other wind generating sets to be cut out are all the shutdown instructions with the excessively low ambient temperature; if all the power grid cut-out instructions of other wind generating sets to be cut out are the shutdown instructions with the over-low ambient temperature, judging whether the temperature of the target wind generating set is lower than the temperature of all other wind generating sets to be cut out, wherein the shutdown instructions with the over-low ambient temperature are to be executed; if the temperature of the target wind generating set is lower than the temperatures of all other wind generating sets to be cut of which the environment temperature is too low to execute the shutdown instruction, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut; or if all the power grid cut-out instructions of the other wind power generator sets to be cut out are shutdown instructions with too low ambient temperature, and the power grid cut-out instruction of at least one of the other wind power generator sets to be cut out is a strong wind shutdown instruction, determining that the power grid cut-out instruction of the target wind power generator set is not in high priority relative to the power grid cut-out instructions of the other wind power generator sets to be cut out.
In one possible implementation of the first aspect, the method further comprises: and responding to the received power grid cut-out instruction, and if the wind speed of the target wind generating set reaches a preset wind speed or the limited power operation time of the wind generating set reaches a preset time, executing the cutter cutting operation on the target wind generating set.
In a second aspect, an embodiment of the present invention provides an operation control device for a wind turbine generator system, where the device includes:
the power grid impact determining module is used for responding to the received power grid cut-out instruction and determining whether the target wind generating set can cause impact on the power grid after the power grid is cut out;
the power limiting operation control module is used for controlling the target wind generating set to operate in a power limiting mode if the target wind generating set can cause impact on a power grid after the power grid is cut out of the target wind generating set;
the generator tripping priority judging module is used for judging whether a power grid switching-out instruction of a target wind generating set is in high priority relative to power grid switching-out instructions of other wind generating sets to be switched out under the condition that the power grid switching-out instruction of the target wind generating set is effective if the wind generating sets to be switched out of the power grid exist in the limited power operation period;
and the generator tripping operation control module is used for executing generator tripping operation on the target wind generating set if the power grid switching-out instruction of the target wind generating set is in high priority relative to the power grid switching-out instructions of other wind generating sets to be switched out.
In a possible embodiment of the second aspect, the generator tripping operation control module is further configured to perform a generator tripping operation on the target wind generating set if the target wind generating set cannot cause impact on the power grid after being switched out of the power grid; or/and the power-limited operation control module is further used for controlling the target wind generating set to continue the power-limited operation if the power grid cut-out instruction of the target wind generating set is not in a high priority level relative to the power grid cut-out instructions of other wind generating sets to be cut out.
In one possible embodiment of the second aspect, the grid cut-out command comprises a high wind shutdown command, an ambient temperature over-high shutdown command, and an ambient temperature under-low shutdown command; the cutter priority judging module comprises: a first cutter priority judging unit, a second cutter priority judging unit and/or a third cutter priority judging unit; wherein the content of the first and second substances,
the first switching priority judging unit is used for judging whether the power grid switching-out instruction of at least one unit in other wind generating sets to be switched out is a strong wind shutdown instruction or not if the power grid switching-out instruction of the target wind generating set is the strong wind shutdown instruction; if the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is a strong wind stop instruction, judging whether the wind speed of the target wind generating set is larger than the wind speeds of all other wind generating sets to be cut out which are to execute the strong wind stop instruction; if the wind speed of the target wind generating set is larger than the wind speeds of all other wind generating sets to be cut out, which are to execute the gale stop instruction, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out; or if the power grid cut-out instruction of the target wind generating set is a strong wind stop instruction, and the power grid cut-out instructions of other wind generating sets to be cut out are all stop instructions with overhigh ambient temperature or stop instructions with overlow ambient temperature, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out;
the second generator tripping priority judging unit is used for judging whether the power grid cutting-out instructions of other wind generating sets to be cut out are all the shutdown instructions with overhigh environmental temperature if the power grid cutting-out instructions of the target wind generating set are the shutdown instructions with overhigh environmental temperature; if all the power grid cut-out instructions of other wind generating sets to be cut out are shutdown instructions with overhigh environmental temperature, judging whether the temperature of the target wind generating set is higher than the temperature of all other wind generating sets to be cut out which are subjected to shutdown instructions with overhigh environmental temperature; if the temperature of the target wind generating set is higher than the temperatures of all other wind generating sets to be cut out of which the environment temperature is too high to be executed and the shutdown instruction is executed, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out; or if the power grid cut-out instruction of the target wind generating set is an over-high ambient temperature shutdown instruction and the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is a strong wind shutdown instruction, determining that the power grid cut-out instruction of the target wind generating set is not in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out;
the third generator tripping priority judging unit is used for judging whether the grid cutting instructions of other wind generating sets to be cut out are all the shutdown instructions with the excessively low ambient temperature if the grid cutting instruction of the target wind generating set is the shutdown instruction with the excessively low ambient temperature; if all the power grid cut-out instructions of other wind generating sets to be cut out are the shutdown instructions with the over-low ambient temperature, judging whether the temperature of the target wind generating set is lower than the temperature of all other wind generating sets to be cut out, wherein the shutdown instructions with the over-low ambient temperature are to be executed; if the temperature of the target wind generating set is lower than the temperatures of all other wind generating sets to be cut of which the environment temperature is too low to execute the shutdown instruction, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut; or if all the power grid cut-out instructions of the other wind power generator sets to be cut out are shutdown instructions with too low ambient temperature, and the power grid cut-out instruction of at least one of the other wind power generator sets to be cut out is a strong wind shutdown instruction, determining that the power grid cut-out instruction of the target wind power generator set is not in high priority relative to the power grid cut-out instructions of the other wind power generator sets to be cut out.
In a possible embodiment of the second aspect, the generator tripping operation control module is further configured to, in response to receiving the grid-tripping instruction, execute a generator tripping operation on the target wind generating set if the wind speed of the target wind generating set reaches a predetermined wind speed or the power-limited operation duration of the wind generating set reaches a predetermined duration.
In a possible embodiment of the second aspect, the device is provided in a master controller of the target wind park.
In a third aspect, an embodiment of the present invention provides a storage medium, on which a program is stored, where the program, when executed by a processor, implements the wind turbine generator system operation control method as described above.
As described above, under the condition of large-scale wind turbine generator system offline, in the embodiment of the present invention, only the wind turbine generator system with the grid cut-out instruction being the high priority is allowed to perform the tripping operation each time, and other wind turbine generator systems to be tripped operate with the limited power, so that multiple wind turbine generator systems (to be tripped) that are offline for a certain preset time period can be organized to perform the offline in order, thereby reducing the impact on the grid to the maximum extent and maintaining the stable operation of the grid.
Drawings
The present invention may be better understood from the following description of specific embodiments thereof taken in conjunction with the accompanying drawings, in which like or similar reference characters identify like or similar features.
Fig. 1 is a schematic flow chart of an operation control method of a wind turbine generator system according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a wind turbine generator system operation control method according to another embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method for controlling the operation of a wind turbine generator according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of an operation control device of a wind turbine generator system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an operation control device of a wind turbine generator system according to another embodiment of the present invention.
Detailed Description
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.
The embodiment of the invention provides a method, a device and a storage medium for controlling the operation of a wind generating set, wherein a wind generating set sequential shutdown strategy for responding to the influence of environmental factors is designed on the basis of mutual communication of fans, so that the wind generating set required to be disconnected for a certain preset time can be controlled to be sequentially disconnected under the condition of large-range disconnection of the wind generating set caused by the environmental factors such as strong wind shutdown, high-environment-temperature shutdown, low-environment-temperature shutdown and the like, the impact on a power grid is reduced, and the stable operation of the power grid is maintained.
The large-range offline refers to the disconnection of a plurality of wind generating sets exceeding the allowable number from the power grid within a certain time period. The wind power station comprises a plurality of wind generating sets, a central centralized controller of the wind power station is respectively connected with the wind generating sets, the wind generating sets can communicate with each other, and related communication data comprise fan operation data, power grid working condition data and the like.
Table 1 shows the intercommunication variables and types between the wind turbine generators in an example. Referring to the first to fourth columns, the intercommunication variables shown in table 1 include grid cut-out command, wind speed, ambient temperature and unit status.
TABLE 1
Figure BDA0002038773940000071
The data type of the power grid cut-out instruction variable is INT, the value when no instruction exists is 0, the value when a strong wind stops the instruction is 1, and the data type is used for indicating the unit stop condition when the wind speed is higher than the maximum wind speed designed to operate by the wind generating set; the shutdown instruction time value when the environmental temperature is too high is 2, and the shutdown instruction is used for indicating the unit shutdown condition of the unit when the environmental temperature is higher than the designed running highest temperature of the wind generating set; and the shutdown command time value when the ambient temperature is too low is 3, and the shutdown command time value is used for indicating the shutdown condition of the wind generating set when the ambient temperature is lower than the designed running minimum temperature of the wind generating set.
The data type of the wind speed variable is REAL, the data type of the environment temperature variable is REAL, the data type of the unit state variable is INT, for example, the value is 0 when the wind turbine is stopped, and the value is 1 when the wind turbine is normally operated. Those skilled in the art can redefine the data types and assignments for the variables according to actual situations, and are not limited herein.
The values of the variables are continuously updated when the wind generating set is actually operated, and the updating period of the variables shown in the fourth column in table 1 is 1 s.
Fig. 1 is a schematic flow chart of a wind turbine generator system operation control method according to an embodiment of the present invention, where the wind turbine generator system operation control method according to the embodiment of the present invention is executed by the wind turbine generator system itself, and a detailed description is given below by taking a target wind turbine generator system as an example. As shown in fig. 1, the wind turbine generator system operation control method includes steps 101 to 104.
In step 101, in response to receiving a grid cut-out instruction, it is determined whether the target wind generating set will cause impact on the grid after being cut out of the grid.
The grid cutting instruction may be sent to the target wind turbine generator set by a central centralized controller of the wind farm, or may be generated by the target wind turbine generator set according to the environmental data, which is not limited herein.
According to the embodiment of the invention, the target wind generating set is interconnected with other wind generating sets in the power grid, and the interconnection communication data comprises fan operation data, power grid working condition data and the like.
In an example, after the target wind generating set receives the grid cutting-out instruction, the wind generating set which is cut out together with the target wind generating set can be determined through interconnection communication data (see table 1) sent by other wind generating sets, and if the number of the wind generating sets which are cut out in a certain preset time exceeds the number of the permitted cut-out machines, it is determined that the grid cutting-out of the target wind generating set causes impact on the grid.
In another example, in addition to the number of the cutting units, the total rated power of the cutting units may be determined according to, for example, 102 MW units and 5 3MW units of the cutting units receiving the cutting command, and then the total cutting power is 10 × 2MW +5 × 3MW — 35MW, and accordingly, a total power threshold value allowing for offline may be set, and it is determined whether to impact the power grid according to the threshold value. Compared with the cut-out quantity scheme, the fan interconnection data required to be provided also comprises the rated power of each machine type to be cut out.
In addition, different threshold values of the allowed offline number can be set according to different models, for example, a model of 2MW has a corresponding threshold value, and a model of 3MW has a corresponding threshold value. And determining a corresponding threshold value according to the type of the current wind generating set to judge the impact degree on the power grid.
In step 102, if the target wind generating set is cut off from the power grid and then impacts the power grid, the target wind generating set is controlled to operate in a limited power mode.
The method comprises the steps of considering the influence of a target wind generating set on a power grid, and executing the operation of a generator tripping only under the condition that the target wind generating set receives a power grid switching-out instruction and the power grid is not impacted after the target wind generating set is switched out. On the contrary, under the condition that the impact on the power grid is determined after the power grid is cut out, the target wind generating set does not execute the generator tripping operation temporarily, and the rated power is reduced to perform power-limited operation so as to reduce the impact on the power grid.
In step 103, if there is a wind turbine generator system that cuts out the power grid during the limited power operation period, it is determined whether the power grid cut-out instruction of the target wind turbine generator system is at a high priority level with respect to the power grid cut-out instructions of other wind turbine generator systems to be cut out, in the case that the power grid cut-out instruction of the target wind turbine generator system is valid.
In step 104, if the grid cut-out instruction of the target wind generating set is in a high priority level relative to the grid cut-out instructions of other wind generating sets to be cut out, the generator tripping operation is executed on the target wind generating set.
According to the step 103 and the step 104, the grid cut-out instruction of the target wind generating set is continuously updated during the limited power operation period, the target wind generating set can monitor the grid cut-out instructions of other wind generating sets to be cut out in the wind farm based on the mutual communication among the fans under the condition that the grid cut-out instruction of the target wind generating set is determined to be effective, the priority state of the grid cut-out instruction of the target wind generating set relative to the grid cut-out instructions of the other wind generating sets to be cut out is judged, and the power cut-out operation is executed on the target wind generating set only under the condition that the grid cut-out instruction of the target wind generating set is in high priority relative to the grid cut-out instructions of the other wind generating sets to be cut out.
On the contrary, under the condition that the power grid cut-out instruction of the target wind generating set is not in a high priority relative to the power grid cut-out instructions of other wind generating sets to be cut out, the target wind generating set does not execute the power cutting-off operation temporarily, but reduces the rated power to carry out the limited power operation until the power cutting-off operation is stopped or the power grid cut-out instruction disappears.
That is to say, under the condition of large-scale off-line of the wind generating sets, in the embodiment of the invention, only the wind generating set with the power grid cut-out instruction as the high priority is allowed to execute the tripping operation each time, and other wind generating sets to be tripped run with limited power, so that a plurality of wind generating sets (wind generating sets to be tripped) which are off-line within a certain preset time (the length of the time can be determined according to respective requirements of different power grids) are organized to be sequentially off-line, the impact on the power grid can be reduced to the maximum extent, and the stable operation of the power grid is maintained.
Fig. 2 is a schematic flow chart of a wind turbine generator system operation control method according to another embodiment of the present invention, and fig. 2 is different from fig. 1 in that step 103 in fig. 1 can be detailed as step 1031 to step 1039 in fig. 2.
With reference to table 1, the grid cut-out instruction affected by the environmental factors in the embodiment of the present invention includes a strong wind shutdown instruction, an excessive ambient temperature shutdown instruction, and an excessively low ambient temperature shutdown instruction. The following describes in detail the priority determination process of the grid cut-out command of the target wind turbine generator set relative to the grid cut-out commands of other wind turbine generator sets to be cut out, based on the commands.
In step 1031, if the grid cut-out instruction of the target wind turbine generator set is a strong wind stop instruction, it is determined whether the grid cut-out instruction of at least one of the other wind turbine generator sets to be cut is a strong wind stop instruction.
In step 1032, if the grid cut-out instruction of at least one of the other wind turbine generators to be cut out is a strong wind stop instruction, it is determined that the grid cut-out instruction of the target wind turbine generator is in a high priority level with respect to the grid cut-out instructions of the other wind turbine generators to be cut out under the condition that the wind speed of the target wind turbine generator is all larger than the wind speeds of the other wind turbine generators to be cut out.
In step 1033, if the grid cut-out instruction of the target wind turbine generator set is a strong wind shutdown instruction, and all the grid cut-out instructions of the other wind turbine generator sets to be cut out are shutdown instructions with too high environmental temperature or shutdown instructions with too low environmental temperature, it is determined that the grid cut-out instruction of the target wind turbine generator set is in high priority relative to the grid cut-out instructions of the other wind turbine generator sets to be cut out.
The foregoing steps 1031 to 1032 and step 1033 specifically describe a priority determination process when the grid cut-out instruction of the target wind turbine generator set is a windstorm shutdown instruction during the limited power operation, and mainly include two cases (1) and (2):
(1) if the grid cut-out instruction of the target wind generating set is a strong wind stop instruction, and the grid cut-out instructions of the partial units in other wind generating sets to be cut out are also strong wind stop instructions, sequencing can be carried out according to the wind speed, the wind generating set with the maximum wind speed is used as a high-priority unit, and the generator tripping operation is preferentially executed, so that the wind generating set is prevented from being influenced by overhigh wind speed to safely operate.
(2) If the power grid cut-out instruction of the target wind generating set is a strong wind shutdown instruction, and all the power grid cut-out instructions of the partial units in other wind generating sets to be cut are shutdown instructions with overhigh ambient temperature or shutdown instructions with overlow ambient temperature, the influence of wind speed and temperature on the safe operation of the wind generating sets can be compared, the priority of the strong wind shutdown instruction is higher than that of the shutdown instructions with overhigh ambient temperature or the shutdown instructions with overlow ambient temperature, so that the wind generating set to which the strong wind shutdown instruction belongs is used as a high-priority unit to preferentially execute the tripping operation, and the safe operation of the wind generating set is prevented from being influenced by overhigh wind speed.
In step 1034, if the grid cut-out instruction of the target wind generating set is the shutdown instruction with the overhigh environmental temperature, it is determined whether all the grid cut-out instructions of the other wind generating sets to be cut-out are shutdown instructions with the overhigh environmental temperature.
In step 1035, if all the grid cut-out instructions of the other wind turbine generators to be cut out are shutdown instructions with too high ambient temperature, it is determined that the grid cut-out instruction of the target wind turbine generator is at a high priority level with respect to the grid cut-out instructions of the other wind turbine generators to be cut out when all the temperatures of the target wind turbine generator are higher than the temperatures of the other wind turbine generators to be cut out.
In step 1036, if the grid cut-out instruction of the target wind turbine generator set is an over-high ambient temperature shutdown instruction and the grid cut-out instruction of at least one of the other to-be-cut-out wind turbine generator sets is a strong wind shutdown instruction, it is determined that the grid cut-out instruction of the target wind turbine generator set is not at a high priority level with respect to the grid cut-out instructions of the other to-be-cut-out wind turbine generator sets.
The foregoing steps 1034 to 1035 and 1036 specifically describe the priority determination process when the grid cut-out instruction of the target wind turbine generator set is the shutdown instruction with the excessive ambient temperature during the limited power operation, and mainly include two cases (3) and (4):
(3) if the power grid cut-out instruction of the target wind generating set is an over-high ambient temperature shutdown instruction, and all power grid cut-out instructions of part of units in other wind generating sets to be cut out are over-high ambient temperature shutdown instructions, sequencing can be performed according to the temperature, the wind generating set with the highest temperature is used as a high-priority unit, and the tripping operation is preferentially executed, so that the safe operation of the wind generating set is prevented from being influenced by the over-high temperature.
(4) If the power grid cut-out instruction of the target wind generating set is an over-high ambient temperature shutdown instruction and the power grid cut-out instructions of other wind generating sets to be cut out are strong wind shutdown instructions, the wind generating sets to which the other strong wind shutdown instructions belong are preferentially executed in consideration of the fact that the priority of the strong wind shutdown instructions is higher than that of the over-high ambient temperature shutdown instructions, and therefore the wind generating sets are prevented from being influenced by the over-high wind speed.
In step 1037, if the grid cut-out instruction of the target wind generating set is the shutdown instruction with the excessively low ambient temperature, it is determined whether all grid cut-out instructions of other wind generating sets to be cut out are shutdown instructions with the excessively low ambient temperature.
In step 1038, if all of the grid cut-out instructions of the other wind turbine generators to be cut out are shutdown instructions with too low ambient temperature, it is determined that the grid cut-out instruction of the target wind turbine generator is at a high priority level with respect to the grid cut-out instructions of the other wind turbine generators to be cut out when the temperature of the target wind turbine generator is all less than the temperatures of the other wind turbine generators to be cut out.
In step 1039, if the grid cut-out instruction of the target wind turbine generator set is the shutdown instruction with the excessively low ambient temperature and the grid cut-out instruction of at least one of the other to-be-cut-out wind turbine generator sets is the strong wind shutdown instruction, it is determined that the grid cut-out instruction of the target wind turbine generator set is not at the high priority level with respect to the grid cut-out instructions of the other to-be-cut-out wind turbine generator sets.
The foregoing steps 1037 to 1038 and 1039 specifically describe the priority determination process when the grid cut-out instruction of the target wind generating set is the shutdown instruction with too low ambient temperature during the limited power operation, and mainly include two cases (5) and (6):
(5) if the power grid cut-out instruction of the target wind generating set is an environment temperature over-low shutdown instruction, and the power grid cut-out instructions of the partial units to be cut out of the wind generating sets are all environment temperature over-low shutdown instructions, sequencing can be performed according to the temperature, the wind generating set with the lowest temperature is used as a high-priority unit, and the tripping operation is preferentially executed, so that the situation that the safe operation of the wind generating set is influenced by over-low temperature is avoided.
(6) If the power grid cut-out instruction of the target wind generating set is an ambient temperature over-low shutdown instruction, and the power grid cut-out instructions of other wind generating sets to be cut are strong wind shutdown instructions, the wind generating sets to which the other strong wind shutdown instructions belong are preferentially executed in consideration of the fact that the priority of the strong wind shutdown instructions is higher than that of the ambient temperature over-low shutdown instructions, so that the wind generating sets are prevented from being influenced by over-high wind speed.
In some embodiments, the wind park operation control further comprises: and responding to the received power grid cut-out instruction, if the wind speed of the target wind generating set reaches the preset wind speed or the limited power operation time of the wind generating set reaches the preset time, executing a cutter cutting operation on the target wind generating set to protect the wind generating set to be cut out, directly stopping the wind generating set, and avoiding the influence on the safe operation of the wind generating set caused by overhigh wind speed, overhigh temperature or overlow temperature in the continuous waiting process.
Fig. 3 is a schematic flow chart of a wind turbine generator system operation control method according to another embodiment of the present invention, which is used to illustrate the wind turbine generator system operation control method in the embodiment of the present invention in detail.
In step 301, the target wind park receives a grid cut-out command.
In step 302, judging whether large-area off-line is caused after the target wind generating set is switched off, if so, executing step 303; otherwise, step 304 is performed.
In step 303, the target wind turbine generator set is controlled to operate at a limited power.
In step 304, a generator tripping operation is performed on the target wind park.
In step 305, during the limited power operation period, it is determined whether there is an offline group, if yes, step 306 is executed; otherwise, the step 303 is executed.
In step 306, judging whether the grid cutting instruction of the target wind generating set is effective, if so, executing step 307; otherwise, ending the flow.
In step 307, judging whether a strong wind stop instruction set waits, if the power grid cut-out instruction of the target wind generating set is a strong wind stop instruction and the strong wind stop instruction set waits at the moment, executing step 308, otherwise executing step 304; and if the power grid cut-out instruction of the target wind generating set is an over-high ambient temperature stop instruction or an over-low ambient temperature stop instruction and no strong wind stop instruction set waits at this moment, executing the step 309, otherwise, executing the step 303.
In step 308, it is determined whether the wind speed of the target wind turbine generator set is maximum, if so, step 304 is executed, otherwise, step 303 is executed.
In step 309, it is determined whether there is a shutdown command with an excessive ambient temperature or a shutdown command set with an insufficient ambient temperature to wait, if yes, step 310 is executed, otherwise, step 304 is executed.
In step 310, it is determined whether the temperature of the target wind turbine generator set is the highest or the lowest, if yes, step 304 is executed, otherwise, step 303 is executed.
Further, in step 304, a protection measure may be performed on the unit of which the power limiting device waits to be shut down, and when the wind speed is greater than a set limit value or the waiting time exceeds the set limit value, the unit is shut down directly.
As described above, by adopting the technical scheme of the embodiment of the invention, the influence of the grid disconnection of a large-range unit in a certain preset time length (the length of the time length can be determined according to respective requirements of different grids) caused by environmental factors on the grid can be effectively reduced, and the voltage and frequency fluctuation of the grid can be reduced, so that more units can be prevented from being disconnected due to the fact that the voltage of the grid is too high or too low and the frequency of the grid exceeds a normal range, and meanwhile, the damage of power utilization equipment caused by the instability of the grid can be reduced.
Fig. 4 is a schematic structural diagram of an operation control device of a wind turbine generator system according to an embodiment of the present invention, and the explanation in fig. 1 may be applied to this embodiment. As shown in fig. 4, the wind turbine generator system operation control device includes: a grid impact determination module 401 (which has a function corresponding to step 101), a limited power operation control module 402 (which has a function corresponding to step 102), a tripping priority determination module 403 (which has a function corresponding to step 103), and a tripping operation control module 404 (which has a function corresponding to step 104).
The power grid impact determination module 401 is configured to determine, in response to receiving a power grid cut-out instruction, whether an impact is caused to a power grid after the target wind turbine generator system is cut out from the power grid.
The power-limiting operation control module 402 is configured to control the target wind turbine generator set to operate in a power-limiting mode if the target wind turbine generator set is cut off from the power grid and then impacts are caused on the power grid.
The generator tripping priority determination module 403 is configured to, if there is a wind turbine generator system that switches out a power grid during the limited power operation period, determine whether a power grid switching-out instruction of the target wind turbine generator system is at a high priority relative to power grid switching-out instructions of other wind turbine generator systems to be tripped out, under the condition that the power grid switching-out instruction of the target wind turbine generator system is valid.
The generator tripping operation control module 404 is configured to execute a generator tripping operation on the target wind turbine generator set if the grid cut-out instruction of the target wind turbine generator set is in a high priority level with respect to the grid cut-out instructions of other wind turbine generator sets to be tripped.
In some embodiments, the generator tripping operation control module 404 is further configured to perform a generator tripping operation on the target wind generating set if the target wind generating set cannot impact the grid after being switched out of the grid;
in some embodiments, the power-limited operation control module 402 is further configured to control the target wind turbine generator set to continue the power-limited operation if the grid-cut instruction of the target wind turbine generator set is not at a high priority level with respect to the grid-cut instructions of other wind turbine generator sets to be cut.
Fig. 5 is a schematic structural diagram of an operation control device of a wind turbine generator system according to another embodiment of the present invention, and the explanation in fig. 2 can be applied to this embodiment. Fig. 5 differs from fig. 4 in that the cutter priority determination module 403 in fig. 4 can be refined into a first cutter priority determination unit 4031 (which has functions corresponding to steps 1031 to 1033), a second cutter priority determination unit 4032 (which has functions corresponding to steps 1034 to 1036), and/or a third cutter priority determination unit 4033 (which has functions corresponding to steps 1037 to 1039) in fig. 5.
The first switching priority judging unit 4031 is used for judging whether the power grid switching-out instruction of at least one of the other wind generating sets to be switched out is a strong wind shutdown instruction or not if the power grid switching-out instruction of the target wind generating set is the strong wind shutdown instruction; if the power grid cut-out instruction of at least one of the other wind power generator sets to be cut out is a strong wind stop instruction, determining that the power grid cut-out instruction of the target wind power generator set is in high priority relative to the power grid cut-out instructions of the other wind power generator sets to be cut out under the condition that the wind speed of the target wind power generator set is all larger than the wind speeds of the other wind power generator sets to be cut out; and if the power grid cut-out instruction of the target wind generating set is a strong wind shutdown instruction, and the power grid cut-out instructions of other wind generating sets to be cut are all shutdown instructions with overhigh ambient temperature or shutdown instructions with overlow ambient temperature, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut.
The second generator tripping priority judging unit 4032 is used for judging whether the grid tripping instructions of other wind generating sets to be tripped are all the shutdown instructions with overhigh ambient temperature if the grid tripping instruction of the target wind generating set is the shutdown instruction with overhigh ambient temperature; if the power grid cut-out instructions of other wind generating sets to be cut out are all shutdown instructions with overhigh ambient temperature, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out under the condition that the temperature of the target wind generating set is all higher than the temperatures of the other wind generating sets to be cut out; and if the power grid cut-out instruction of the target wind generating set is an over-high ambient temperature shutdown instruction and the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is a strong wind shutdown instruction, determining that the power grid cut-out instruction of the target wind generating set is not in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out.
The third generator tripping priority judging unit 4033 is used for judging whether the grid tripping instructions of other wind generating sets to be tripped are all the shutdown instructions with the excessively low ambient temperature if the grid tripping instruction of the target wind generating set is the shutdown instruction with the excessively low ambient temperature; if the power grid cut-out instructions of other wind generating sets to be cut out are all shutdown instructions with too low ambient temperature, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out under the condition that the temperature of the target wind generating set is all lower than the temperatures of the other wind generating sets to be cut out; and if the power grid cut-out instruction of the target wind generating set is a shutdown instruction with too low ambient temperature and the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is a strong wind shutdown instruction, determining that the power grid cut-out instruction of the target wind generating set is not in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out.
In some embodiments, the generator tripping operation control module 404 is further configured to, in response to receiving the grid-cut instruction, perform a generator tripping operation on the target wind generating set if the wind speed of the target wind generating set reaches a predetermined wind speed or the power-limited operation duration of the wind generating set reaches a predetermined duration.
It should be noted that the wind turbine generator system operation control device in the embodiment of the present invention mainly performs generator tripping control on the wind turbine generator system itself, and the wind turbine generator system operation control device may be arranged in a main controller of the wind turbine generator system, so that no hardware needs to be changed, or the wind turbine generator system operation control device may be a logic device having an independent operation function, and is not limited herein.
An embodiment of the present invention further provides a storage medium having a program stored thereon, where the program when executed by a processor implements the wind turbine generator system operation control method as claimed above.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For the device embodiments, reference may be made to the description of the method embodiments in the relevant part. Embodiments of the invention are not limited to the specific steps and structures described above and shown in the drawings. Those skilled in the art may make various changes, modifications and additions to, or change the order between the steps, after appreciating the spirit of the embodiments of the invention. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of an embodiment of the present invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
Embodiments of the present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. For example, the algorithms described in the specific embodiments may be modified without departing from the basic spirit of the embodiments of the present invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the embodiments of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (12)

1. An operation control method of a wind generating set is characterized by comprising the following steps:
in response to the received power grid switching-out instruction, determining whether the target wind generating set can cause impact on the power grid after switching out the power grid;
if the target wind generating set is impacted to the power grid after being cut off from the power grid, controlling the target wind generating set to operate in a limited power mode;
if a wind generating set for cutting out a power grid exists in the limited power operation period, judging whether the power grid cutting-out instruction of the target wind generating set is in high priority relative to the power grid cutting-out instructions of other wind generating sets to be cut out under the condition that the power grid cutting-out instruction of the target wind generating set is effective;
and if the power grid cut-out instruction of the target wind generating set is in a high priority relative to the power grid cut-out instructions of other wind generating sets to be cut out, executing a cutter cutting operation on the target wind generating set.
2. The method of claim 1, further comprising:
if the target wind generating set cannot impact the power grid after being cut out of the power grid, executing a generator tripping operation on the target wind generating set;
or/and the light source is arranged in the light path,
and if the power grid cut-out instruction of the target wind generating set is not in a high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out, controlling the target wind generating set to continue to operate in a power limiting mode.
3. The method of claim 1, wherein the grid cut-out instructions comprise a high wind shutdown instruction, an ambient temperature over-high shutdown instruction, and an ambient temperature under-low shutdown instruction;
the step of judging whether the grid cut-out instruction of the target wind generating set is in a high priority relative to the grid cut-out instructions of other wind generating sets to be cut out includes:
if the power grid cut-out instruction of the target wind generating set is the strong wind stop instruction, judging whether the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is the strong wind stop instruction;
if the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is the strong wind stop instruction, judging whether the wind speed of the target wind generating set is larger than the wind speeds of all other wind generating sets to be cut out which are to execute the strong wind stop instruction;
if the wind speed of the target wind generating set is larger than the wind speeds of all other wind generating sets to be cut out, which are to execute the gale stop command, determining that the power grid cut-out command of the target wind generating set is in high priority relative to the power grid cut-out commands of the other wind generating sets to be cut out;
alternatively, the first and second electrodes may be,
and if the power grid cut-out instruction of the target wind generating set is the strong wind shutdown instruction, and the power grid cut-out instructions of the other wind generating sets to be cut are all the shutdown instructions with overhigh ambient temperature or the shutdown instructions with overlow ambient temperature, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut.
4. The method according to claim 3, wherein the step of determining whether the grid cut-out command of the target wind generating set is at a high priority relative to the grid cut-out commands of other wind generating sets to be cut-out further comprises:
if the power grid cut-out instruction of the target wind generating set is the shutdown instruction with the overhigh environmental temperature, judging whether the power grid cut-out instructions of other wind generating sets to be cut out are all the shutdown instructions with the overhigh environmental temperature;
if all the power grid cut-out instructions of the other wind generating sets to be cut out are shutdown instructions with overhigh environmental temperature, judging whether the temperature of the target wind generating set is higher than the temperature of all other wind generating sets to be cut out which are to execute the shutdown instructions with overhigh environmental temperature;
if the temperature of the target wind generating set is higher than the temperatures of all other wind generating sets to be cut out, which are to execute the shutdown instruction with overhigh environmental temperature, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out;
alternatively, the first and second electrodes may be,
and if the power grid cut-out instruction of the target wind generating set is the shutdown instruction with the overhigh environmental temperature and the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is the strong wind shutdown instruction, determining that the power grid cut-out instruction of the target wind generating set is not in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out.
5. The method according to claim 3, wherein the step of determining whether the grid cut-out command of the target wind turbine generator set is at a high priority relative to the grid cut-out commands of other wind turbine generator sets to be cut out further comprises:
if the power grid cut-out instruction of the target wind generating set is the shutdown instruction with the excessively low ambient temperature, judging whether the power grid cut-out instructions of other wind generating sets to be cut-out are all the shutdown instructions with the excessively low ambient temperature;
if all the power grid cut-out instructions of the other wind generating sets to be cut out are the shutdown instructions with the excessively low ambient temperature, judging whether the temperature of the target wind generating set is lower than the temperature of all other wind generating sets to be cut out, wherein the shutdown instructions with the excessively low ambient temperature are to be executed;
if the temperature of the target wind generating set is lower than the temperatures of all other wind generating sets to be cut, which are to execute the shutdown command with the excessively low environmental temperature, determining that the power grid cut-out command of the target wind generating set is in high priority relative to the power grid cut-out commands of the other wind generating sets to be cut;
alternatively, the first and second electrodes may be,
and if the power grid cut-out instructions of the other wind power generator sets to be cut off are all the shutdown instructions with the excessively low ambient temperature, and the power grid cut-out instruction of at least one of the other wind power generator sets to be cut off is the high-wind shutdown instruction, determining that the power grid cut-out instruction of the target wind power generator set is not in high priority relative to the power grid cut-out instructions of the other wind power generator sets to be cut off.
6. The method of claim 1, further comprising:
and responding to the received power grid cut-out instruction, and if the wind speed of the target wind generating set reaches a preset wind speed or the limited power operation time of the wind generating set reaches a preset time, executing a generator tripping operation on the target wind generating set.
7. An operation control device of a wind generating set is characterized by comprising:
the power grid impact determining module is used for responding to the received power grid cut-out instruction and determining whether the target wind generating set can cause impact on the power grid after the power grid is cut out;
the power limiting operation control module is used for controlling the target wind generating set to operate in a power limiting mode if the target wind generating set can cause impact on a power grid after the power grid is cut out of the power grid;
the generator tripping priority judging module is used for judging whether a grid tripping instruction of the target wind generating set is in high priority relative to grid tripping instructions of other wind generating sets to be tripped if the wind generating sets tripping the grid during the limited power operation period have the wind generating sets tripping the grid;
and the generator tripping operation control module is used for executing generator tripping operation on the target wind generating set if the power grid switching-out instruction of the target wind generating set is in a high priority relative to the power grid switching-out instructions of other wind generating sets to be switched out.
8. The apparatus of claim 7,
the generator tripping operation control module is also used for executing generator tripping operation on the target wind generating set if the target wind generating set cannot impact the power grid after being switched into the power grid;
or/and the light source is arranged in the light path,
and the power limiting operation control module is also used for controlling the target wind generating set to continue the power limiting operation if the power grid cut-out instruction of the target wind generating set is not in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out.
9. The apparatus of claim 7, wherein the grid cut-out instructions comprise a high wind shutdown instruction, an ambient temperature over-high shutdown instruction, and an ambient temperature under-low shutdown instruction; the cutter priority judging module comprises: the first cutter priority judging unit, the second cutter priority judging unit and/or the third cutter priority judging unit; wherein the content of the first and second substances,
the first switching priority judging unit is used for judging whether the power grid switching-out instruction of at least one of the other wind generating sets to be switched out is the strong wind stop instruction or not if the power grid switching-out instruction of the target wind generating set is the strong wind stop instruction; if the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is the strong wind stop instruction, judging whether the wind speed of the target wind generating set is larger than the wind speeds of all other wind generating sets to be cut out which are to execute the strong wind stop instruction; if the wind speed of the target wind generating set is larger than the wind speeds of all other wind generating sets to be cut out of which the gale stop instruction is to be executed, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out; or if the power grid cut-out instruction of the target wind generating set is the high wind shutdown instruction, and the power grid cut-out instructions of the other wind generating sets to be cut are all the shutdown instructions with the overhigh ambient temperature or the shutdown instructions with the overlow ambient temperature, determining that the power grid cut-out instruction of the target wind generating set is in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut;
the second generator tripping priority judging unit is used for judging whether the grid switching-out instructions of other wind generating sets to be switched out are all the shutdown instructions with the overhigh environmental temperature if the grid switching-out instruction of the target wind generating set is the shutdown instruction with the overhigh environmental temperature; if all the power grid cut-out instructions of the other wind generating sets to be cut out are shutdown instructions with overhigh environmental temperature, judging whether the temperature of the target wind generating set is higher than the temperature of all other wind generating sets to be cut out which are to execute the shutdown instructions with overhigh environmental temperature; if the temperature of the target wind generating set is higher than the temperatures of all other wind generating sets to be cut, which are to execute the shutdown command with the overhigh environmental temperature, determining that the power grid cut-out command of the target wind generating set is in high priority relative to the power grid cut-out commands of the other wind generating sets to be cut; or if the power grid cut-out instruction of the target wind generating set is the shutdown instruction with the overhigh environmental temperature and the power grid cut-out instruction of at least one of the other wind generating sets to be cut out is the strong wind shutdown instruction, determining that the power grid cut-out instruction of the target wind generating set is not in high priority relative to the power grid cut-out instructions of the other wind generating sets to be cut out;
the third generator tripping priority judging unit is used for judging whether the grid tripping instructions of other wind generating sets to be tripped are all the shutdown instructions with the over-low ambient temperature if the grid tripping instruction of the target wind generating set is the shutdown instruction with the over-low ambient temperature; if all the power grid cut-out instructions of the other wind generating sets to be cut off are the shutdown instructions with the excessively low ambient temperature, judging whether the temperature of the target wind generating set is lower than the temperatures of all other wind generating sets to be cut off which are to execute the shutdown instructions with the excessively low ambient temperature; if the temperature of the target wind generating set is lower than the temperatures of all other wind generating sets to be cut, which are to execute the shutdown command with the excessively low environmental temperature, determining that the power grid cut-out command of the target wind generating set is in high priority relative to the power grid cut-out commands of the other wind generating sets to be cut; or if all the power grid cut-out instructions of the other to-be-cut-out wind power generator sets are shutdown instructions with too low environmental temperature, and the power grid cut-out instruction of at least one of the other to-be-cut-out wind power generator sets is the high wind shutdown instruction, determining that the power grid cut-out instruction of the target wind power generator set is not in high priority relative to the power grid cut-out instructions of the other to-be-cut-out wind power generator sets.
10. The apparatus of claim 7, wherein the generator tripping operation control module is further configured to, in response to receiving the grid-tripping command, perform a generator tripping operation on the target wind turbine generator set if the wind speed of the target wind turbine generator set reaches a predetermined wind speed or the power-limited operation duration of the wind turbine generator set reaches a predetermined duration.
11. An arrangement according to any of claims 7-10, characterized in that the arrangement is arranged in the main controller of the target wind park.
12. A storage medium having a program stored thereon, wherein the program, when executed by a processor, implements a wind turbine generator set operation control method according to any one of claims 1-6.
CN201910334603.8A 2019-04-24 2019-04-24 Wind generating set operation control method and device and storage medium Active CN111852760B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910334603.8A CN111852760B (en) 2019-04-24 2019-04-24 Wind generating set operation control method and device and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910334603.8A CN111852760B (en) 2019-04-24 2019-04-24 Wind generating set operation control method and device and storage medium

Publications (2)

Publication Number Publication Date
CN111852760A CN111852760A (en) 2020-10-30
CN111852760B true CN111852760B (en) 2022-07-05

Family

ID=72951330

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910334603.8A Active CN111852760B (en) 2019-04-24 2019-04-24 Wind generating set operation control method and device and storage medium

Country Status (1)

Country Link
CN (1) CN111852760B (en)

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004507199A (en) * 2000-08-14 2004-03-04 アロイス・ヴォベン Wind power equipment
CN101048592A (en) * 2004-06-30 2007-10-03 歌美飒风电有限公司 Method and device for preventing releasing from electric net in power plant
CN201918743U (en) * 2011-02-15 2011-08-03 黑龙江瑞好科技集团有限公司 Control system of double-fed wind generating set
CN102163850A (en) * 2010-02-22 2011-08-24 北京动力机械研究所 Wind power generation grid-connected switching system and method
CN102522769A (en) * 2011-12-01 2012-06-27 北京动力机械研究所 Hybrid excitation wind power generation system with wide wind speed range
CN103883468A (en) * 2014-03-13 2014-06-25 成都阜特科技股份有限公司 Method for controlling wind turbine generator system at low wind speed
CN104373294A (en) * 2014-11-28 2015-02-25 东元总合科技（杭州）有限公司 Full-power control and operation method applied to wind power converter
JP2016017424A (en) * 2014-07-07 2016-02-01 株式会社日立製作所 Wind power generation system
CN108336761A (en) * 2018-04-03 2018-07-27 北京金风科创风电设备有限公司 Power control method, device and system for wind power plant and computer equipment
CN108397347A (en) * 2018-01-30 2018-08-14 浙江运达风电股份有限公司 A kind of method for controlling number of revolution for ensureing large-scale wind electricity unit inertia response control and stablizing
CN108988381A (en) * 2018-07-09 2018-12-11 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 Low voltage traversing control method of wind generator set, apparatus and system
CN109139366A (en) * 2018-09-26 2019-01-04 北京金风科创风电设备有限公司 Control system for wind farm
CN109245177A (en) * 2018-11-30 2019-01-18 国网山东省电力公司经济技术研究院 A kind of bimodulus flexibility method for handover control based on DFIG
WO2019056169A1 (en) * 2017-09-19 2019-03-28 Nokia Shanghai Bell Co., Ltd. Modulation and coding scheme (mcs) correction when sharing radio resources between mtc and non-mtc

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100138057A1 (en) * 2009-08-28 2010-06-03 General Electric Company Systems and methods for interfacing renewable power sources to a power grid
US7723859B1 (en) * 2009-11-24 2010-05-25 General Electric Company Wind turbine with direct-connected variable speed blower
JP5485368B2 (en) * 2011-11-16 2014-05-07 三菱重工業株式会社 Wind power generation system and control method thereof
US9520819B2 (en) * 2014-02-28 2016-12-13 General Electric Company System and method for controlling a power generation system based on a detected islanding event

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004507199A (en) * 2000-08-14 2004-03-04 アロイス・ヴォベン Wind power equipment
CN101048592A (en) * 2004-06-30 2007-10-03 歌美飒风电有限公司 Method and device for preventing releasing from electric net in power plant
CN102163850A (en) * 2010-02-22 2011-08-24 北京动力机械研究所 Wind power generation grid-connected switching system and method
CN201918743U (en) * 2011-02-15 2011-08-03 黑龙江瑞好科技集团有限公司 Control system of double-fed wind generating set
CN102522769A (en) * 2011-12-01 2012-06-27 北京动力机械研究所 Hybrid excitation wind power generation system with wide wind speed range
CN103883468A (en) * 2014-03-13 2014-06-25 成都阜特科技股份有限公司 Method for controlling wind turbine generator system at low wind speed
JP2016017424A (en) * 2014-07-07 2016-02-01 株式会社日立製作所 Wind power generation system
CN104373294A (en) * 2014-11-28 2015-02-25 东元总合科技（杭州）有限公司 Full-power control and operation method applied to wind power converter
WO2019056169A1 (en) * 2017-09-19 2019-03-28 Nokia Shanghai Bell Co., Ltd. Modulation and coding scheme (mcs) correction when sharing radio resources between mtc and non-mtc
CN108397347A (en) * 2018-01-30 2018-08-14 浙江运达风电股份有限公司 A kind of method for controlling number of revolution for ensureing large-scale wind electricity unit inertia response control and stablizing
CN108336761A (en) * 2018-04-03 2018-07-27 北京金风科创风电设备有限公司 Power control method, device and system for wind power plant and computer equipment
CN108988381A (en) * 2018-07-09 2018-12-11 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 Low voltage traversing control method of wind generator set, apparatus and system
CN109139366A (en) * 2018-09-26 2019-01-04 北京金风科创风电设备有限公司 Control system for wind farm
CN109245177A (en) * 2018-11-30 2019-01-18 国网山东省电力公司经济技术研究院 A kind of bimodulus flexibility method for handover control based on DFIG

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
基于负载率基尼系数的含风电电网健壮性分析;王辉等;《可再生能源》;20160220;第34卷(第02期);全文 *
计及风力发电的配电网电压稳定性评估框架研究;刘新东等;《电力系统保护与控制》;20130826;第41卷(第17期);全文 *
针对金风750kW系列风力发电机组频繁起停问题的分析与讨论;陈锋;《电气制造》;20110525(第05期);全文 *

Also Published As

Publication number Publication date
CN111852760A (en) 2020-10-30

Similar Documents

Publication Publication Date Title
CN108894918B (en) Pitch control method and device and computer readable storage medium
CN109931217B (en) Wind generating set shutdown control method and system
CN104696160A (en) Controlling wind power plant with negative power capability to respond to grid frequency instability
CN104712498A (en) Control system and method of wind generating set
CN102705160A (en) Rotating speed control method and device of wind generation set
CN111963375A (en) Blade control method and wind generating set thereof
CN111852760B (en) Wind generating set operation control method and device and storage medium
CN109707563B (en) Variable pitch driver restart control method and device and wind generating set
WO2024067120A1 (en) Method and system for suppressing low-frequency oscillation
CN115949405B (en) Coal mining machine control method, system, coal mining machine, electronic equipment and computer medium
CN111878310A (en) Feathering control device, hardware safety chain, system and wind generating set thereof
CN114954315B (en) Whole vehicle power supply system and vehicle
CN112392656A (en) Power control method, apparatus and medium
CN109751184B (en) Control method, main controller and variable flow controller for wind generating set
CN212867766U (en) Feathering control device, hardware safety chain, variable-pitch internal safety chain, system and wind generating set thereof
CN112012883B (en) Wind generating set operation control method and device and storage medium
CN111577539B (en) Wind generating set power control method and device and storage medium
CN113446153B (en) Propeller opening protection method, controller and system of wind generating set
CN109995281B (en) Control method and device for fault recovery of wind turbine generator and readable storage medium
CN109356791B (en) Wind power plant control method and system, farm group controller and wind generating set
EP2851558B1 (en) Method of controlling a wind turbine
CN113586332B (en) Safe operation control system of wind generating set
CN111835032B (en) Control method, system, medium and electronic equipment of wind power plant
KR101411637B1 (en) System and method for controlling blade
EP4239191A1 (en) Load scheduling of wind turbine auxiliary devices

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
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: No.107 Shanghai Road, Urumqi Economic and Technological Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region

Patentee after: Jinfeng Technology Co.,Ltd.

Address before: No.107 Shanghai Road, Urumqi Economic and Technological Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region

Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd.