CN106026199B - A kind of wind power plant region subdivision powerless control method - Google Patents
A kind of wind power plant region subdivision powerless control method Download PDFInfo
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- CN106026199B CN106026199B CN201610313198.8A CN201610313198A CN106026199B CN 106026199 B CN106026199 B CN 106026199B CN 201610313198 A CN201610313198 A CN 201610313198A CN 106026199 B CN106026199 B CN 106026199B
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- 238000012544 monitoring process Methods 0.000 claims description 28
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000005684 electric field Effects 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/50—Controlling the sharing of the out-of-phase component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Supply And Distribution Of Alternating Current (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Wind power plant is controlled the invention discloses a kind of wind power plant region subdivision powerless control method, Region control and station control are divided into according to scene.Region control is the control to low-pressure side bus, in the case where this kind controls scene, the control unit of system is the low-voltage bus bar for a region, and system receives the AVC instructions that a upper key-course issues, and the instruction for each next key-course is broken down into, and it is issued to next layer.Control of the station control i.e. to generator unit, in the case where this kind controls scene, the control unit of system is the generator unit in station, the AVC instructions that system receiving area key-course issues, and the instruction for each generator unit is broken down into, and it is issued to each generator unit.A kind of wind power plant region subdivision powerless control method proposed by the present invention, the new demand of more electric field regions regulation and control, the robustness of strengthening system improve the safety and stability of station control system.
Description
Technical field
The present invention relates to technical field of wind power more particularly to a kind of wind power plant region subdivision powerless control methods.
Background technology
Since wind power output has the characteristics that randomness, intermittence and fluctuation, large-scale wind-electricity integration will
Certain adverse effect is generated to the safe and stable operation of power grid.With increasing rapidly and wind-electricity integration ratio for installed capacity of wind-driven power
Weight is stepped up, to ensure power grid to the coordinated development of the receiving of wind-powered electricity generation, promotion wind-powered electricity generation and power grid, it is necessary to be carried out to wind power plant
Voltage and reactive power automatic control, it is therefore an objective to it improves the rate of qualified voltage of the whole network and reduces network loss, promote the safety operation level of power grid,
With power grid to the receiving ability of wind-powered electricity generation.But existing control system is all to receive traffic order to directly control power generation in electric field
Equipment meets the new demand for not carrying out more electric field region regulation and control.
The content of the invention
Technical problems based on background technology, the present invention propose a kind of idle controlling party of wind power plant region subdivision
Method.
A kind of wind power plant region subdivision powerless control method proposed by the present invention, comprises the following steps：
S1, the idle control of wind power plant is divided into area control system and station control system, area control system for pair
Low-pressure side bus are controlled, and station control system is used to control generator unit；
S2, station control system acquisition fan monitoring system data, reactive power compensator data and booster stations monitoring system
Data, wherein, fan monitoring system data includes：Blower voltage, wind turbine electric current and wind turbine reactive power, reactive power compensator number
According to including reactive power, booster stations monitoring system data include：Busbar voltage, bus current and busbar outlet reactive power；
S3, station control system are supervised according to the fan monitoring system data of acquisition, reactive power compensator data and booster stations
Control system data calculate station control system data and on give area control system, it is total that station control system data include station
Reactive power and station, which can be increased, can always subtract reactive power；
S4, area control system calculate Region control according to station control system data and booster stations monitoring system data
Data and on give scheduling station system, Region control data include region and can always increase reactive power and region can always subtracting idle work(
Rate；
S5, scheduling station system regulate and control to order according to the Region control data formation zone of acquisition, regional control order bag
Include region voltage desired value and region Target of Reactive Power value；
S6, area control system calculate station voltage target according to regional control order and current region control system data
Value and station Target of Reactive Power value, and generate station regulation and control order and be issued to station control system；
S7, station control system, which regulate and control to order and combine current station control system data according to station, calculates controlled wind turbine
Then voltage-target and Target of Reactive Power value generate controlled wind turbine regulation and control order control blower fan work；And calculate reactive-load compensation dress
Then the voltage-target and Target of Reactive Power value put generate reactive power compensator regulation and control order control reactive power compensator work.
Preferably, in step S4, area control system obtain booster stations monitoring system data by area control system from
The acquisition of booster stations monitoring system is obtained or obtained from station control system.
Preferably, at least one fan monitoring system and at least one reactive power compensator are included under the control system of station.
Preferably, multiple station control systems are included under area control system.
Preferably, area control system is divided into multiple hierarchical regions control systems in fork type, connects with station control system
The hierarchical regions control system connect obtain calculate after the control system data of station this layer of Region control data and on be sent to one
Grade area control system layer by layer, and so on；Hierarchical regions control system where root node is connected with scheduling station system, is dispatched
This layer of Region control data of hierarchical regions control system where main station system obtains root node, and formation zone regulation and control order；
The regulation and control of grade area control system are ordered from level to level under hierarchical regions control system is generated according to regional control order where root node
Order, and so on, hierarchical regions control system be connected with station control system is according to the tune of layer by layer grade area control system
Control order generation station regulation and control order.
A kind of wind power plant region subdivision powerless control method proposed by the present invention, by the equipment involved in whole system according to
The physics and logical relation of equipment room carries out layered configuration, and system will successively be controlled from top to bottom according to this configuration,
So that intelligent integral complex control system realizes the function of hierarchical control.
The present invention controls wind power plant is divided into Region control and station control according to scene.
Region control is the control to low-pressure side bus, and in the case where this kind controls scene, the control unit of system is for one
The low-voltage bus bar in a region, system receives the AVC instructions that a upper key-course issues, and is broken down into for each next control
The instruction of layer, and it is issued to next layer.In whole system structure, according to the actual demand at scene, Region control can have more
It is a, and multilayer can be divided into.
Control of the station control i.e. to generator unit, in the case where this kind controls scene, the control unit of system is in station
Generator unit, the AVC instructions that system receiving area key-course issues, and the instruction for each generator unit is broken down into,
And it is issued to each generator unit.In whole system structure, according to the number of station, station control can have it is multiple, but all
Belong to the bottom.
A kind of wind power plant region subdivision powerless control method proposed by the present invention, the new demand of more electric field region regulation and control,
The robustness of strengthening system improves the safety and stability of station control system.
Description of the drawings
Fig. 1 is a kind of wind power plant region subdivision powerless control method flow chart proposed by the present invention；
Fig. 2 is a kind of wind power plant region subdivision powerless control system schematic diagram proposed by the present invention；
Fig. 3 is a kind of wind power plant region subdivision exemplary plot provided in an embodiment of the present invention.
Specific embodiment
With reference to Fig. 1, a kind of wind power plant region subdivision powerless control method proposed by the present invention comprises the following steps：
S1, the idle control of wind power plant is divided into area control system and station control system, area control system for pair
Low-pressure side bus are controlled, and station control system is used to control generator unit.
With reference in embodiment illustrated in fig. 3, grid entry point A1, A2, A3 to the busbar between generator unit are low-pressure side bus,
Actual area control system is that each grid entry point A1, A2, A3, B1, B2, B3, B4, B5 are controlled.With reference to Fig. 2, station control
Include one or more generator units under system, each generator unit corresponds to a fan monitoring system and a reactive-load compensation
Device, station control system is by controlling wind turbine and reactive power compensator to work to control the idle of generator unit.
S2, station control system acquisition fan monitoring system data, reactive power compensator data and booster stations monitoring system
Data.Wherein, fan monitoring system data includes：Blower voltage, wind turbine electric current and wind turbine reactive power, reactive power compensator number
According to including reactive power, booster stations monitoring system data include：Busbar voltage, bus current and busbar outlet reactive power.
S3, station control system are supervised according to the fan monitoring system data of acquisition, reactive power compensator data and booster stations
Control system data calculate station control system data and on give area control system, it is total that station control system data include station
Reactive power and station, which can be increased, can always subtract reactive power.
In this step, can always increase reactive power and station by station can always subtract the calculating of reactive power, can grasp in real time
The adjustable amount of each generator unit in the control system of station.
S4, area control system calculate Region control according to station control system data and booster stations monitoring system data
Data and on give scheduling station system, Region control data include region and can always increase reactive power and region can always subtracting idle work(
Rate.
In this step, area control system is divided into multiple hierarchical regions control systems in fork type, with station control system
The hierarchical regions control system of connection obtain calculate after the control system data of station this layer of Region control data and on be sent to
Grade area control system from level to level, and so on.Hierarchical regions control system where crotch root node connects with scheduling station system
It connects, this layer of Region control data of hierarchical regions control system where scheduling station system obtains root node.In present embodiment,
Station control system may be included under the control system of hierarchical regions may also include next stage area control system.
With reference to embodiment illustrated in fig. 3, area control system is divided into level-1 area control system and level-2 area control system,
Level-1 area control system includes grid entry point A1, A2, A3, and level-2 area control system includes grid entry point B1, B2, B3, B4, B5.
In the present embodiment, grid entry point B1, B2, B3, B4, B5 in level-2 area control system are respectively according to following controlled
The station control system data and booster stations monitoring system data of generator unit calculate corresponding level-2 area control system number
According to；Then the grid entry point A1 in level-1 area control system is according to the corresponding level-2 area control system of grid entry point B1, B2 and B3
Data calculate corresponding level-1 area control system data, and the grid entry point A2 in level-1 area control system is according to grid entry point B4
The corresponding station control system data of the generator unit of level-2 area control system data corresponding with B5 and the second line of a couplet calculate
Corresponding level-1 area control system data, the grid entry point A3 in level-1 area control system are corresponded to according to the generator unit of the second line of a couplet
Station control system data calculate corresponding level-1 area control system data.In the present embodiment, level-1 area control system
It is above to give the data of scheduling station system that system, which includes the corresponding level-1 area control system data of grid entry point A1, A2, A3, specifically
During implementation, after can also being integrated to three level-1 area control system data again on be sent to scheduling station system.
In this step, the booster stations monitoring system data that area control system obtains are supervised by area control system from booster stations
System acquisition is controlled to obtain.When it is implemented, can also there be station control system by booster stations monitoring system data and station control system
System data together on be sent to area control system.
S5, scheduling station system regulate and control to order according to the Region control data formation zone of acquisition, regional control order bag
Include region voltage desired value and region Target of Reactive Power value.Specifically, hierarchical regions control system where root node is according to region tune
The regulation and control order of grade area control system from level to level under control order generation, and so on.
In embodiment illustrated in fig. 3, the regional control order that level-1 area control system issues scheduling station system distributes
To grid entry point A1, A2, A3；Then level-2 area control system by the grid entry point A1 command objects obtained be assigned to grid entry point B1,
The grid entry point A2 command objects obtained are assigned to grid entry point B4, B5 and second line of a couplet generator unit by B2, B3.
S6, area control system are specially the hierarchical regions control system being connected with station control system according to this layer of region
Regulation and control order and current region control system data calculate station voltage-target and station Target of Reactive Power value, and generate station tune
Control order is issued to station control system.
In embodiment illustrated in fig. 3, due to having generator unit under grid entry point A2 and A3, so station control system distinguishes root
The station control command of the generator unit of command object generation below is assigned to according to grid entry point B1, B2, B3, B4, B5, and is obtained
Grid entry point A2 is issued to the station control command of generator unit below and grid entry point A3 is issued to power generation list below
The station control command of member.
S7, station control system, which regulate and control to order and combine current station control system data according to station, calculates controlled wind turbine
Then voltage-target and Target of Reactive Power value generate controlled wind turbine regulation and control order control blower fan work；And calculate reactive-load compensation dress
Then the voltage-target and Target of Reactive Power value put generate reactive power compensator regulation and control order control reactive power compensator work.
Station control system passes through controlled wind turbine regulation and control order and reactive power compensator regulation and control order control wind turbine and idle
Compensation device works, and so as to control generator unit, adjusts generator unit power generation, the idle mechanical energy of wind power plant is controlled.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of wind power plant region subdivision powerless control method, which is characterized in that comprise the following steps：
S1, the idle control of wind power plant is divided into area control system and station control system, area control system is used for low pressure
Side bus is controlled, and station control system is used to control generator unit；
S2, station control system acquisition fan monitoring system data, reactive power compensator data and booster stations monitoring system data,
Wherein, fan monitoring system data includes：Blower voltage, wind turbine electric current and wind turbine reactive power, reactive power compensator data packet
Reactive power is included, booster stations monitoring system data include：Busbar voltage, bus current and busbar outlet reactive power；
S3, station control system are monitored according to the fan monitoring system data of acquisition, reactive power compensator data and booster stations is
System data calculate station control system data and on give area control system, station control system data, which include station, can always increase
Reactive power and station can always subtract reactive power；
S4, area control system calculate Region control data according to station control system data and booster stations monitoring system data
Scheduling station system is given on and, Region control data can always increase reactive power and region including region can always subtract reactive power；
S5, scheduling station system regulate and control to order according to the Region control data formation zone of acquisition, and regional control order includes area
Domain voltage-target and region Target of Reactive Power value；
S6, area control system according to regional control order and current region control system data calculate station voltage-target and
Station Target of Reactive Power value, and generate station regulation and control order and be issued to station control system；
S7, station control system, which regulate and control to order and combine current station control system data according to station, calculates controlled blower voltage
Then desired value and Target of Reactive Power value generate controlled wind turbine regulation and control order control blower fan work；And calculate reactive power compensator
Then voltage-target and Target of Reactive Power value generate reactive power compensator regulation and control order control reactive power compensator work.
2. wind power plant region subdivision powerless control method as described in claim 1, which is characterized in that in step S4, region control
The booster stations monitoring system data that system processed obtains are obtained from the acquisition of booster stations monitoring system by area control system or from fields
Station control system obtains.
3. wind power plant region subdivision powerless control method as described in claim 1, which is characterized in that wrapped under the control system of station
Include at least one fan monitoring system and at least one reactive power compensator.
4. wind power plant region subdivision powerless control method as claimed in claim 3, which is characterized in that wrapped under area control system
Include multiple station control systems.
5. such as Claims 1-4 any one of them wind power plant region subdivision powerless control method, which is characterized in that control in region
System processed is divided into multiple hierarchical regions control systems in fork type, and the hierarchical regions control system being connected with station control system obtains
Calculate after the control system data of station this layer of Region control data and on be sent to last layer hierarchical regions control system, successively
Analogize；Hierarchical regions control system where root node is connected with scheduling station system, and scheduling station system is obtained where root node
This layer of Region control data of hierarchical regions control system, and formation zone regulation and control order；Hierarchical regions control where root node
The regulation and control order of grade area control system from level to level under system is generated according to regional control order, and so on, it is controlled with station
The hierarchical regions control system of system connection generates station regulation and control according to this regulation and control order of grade area control system layer by layer and orders.
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