CN108092324A - A kind of wind-powered electricity generation participates in the AGC control systems and control method of peak-frequency regulation - Google Patents
A kind of wind-powered electricity generation participates in the AGC control systems and control method of peak-frequency regulation Download PDFInfo
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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
- H02J3/48—Controlling the sharing of the in-phase component
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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
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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- H02J3/386—
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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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
Abstract
The present invention discloses the AGC control systems and control method that a kind of wind-powered electricity generation participates in peak-frequency regulation, a wind-powered electricity generation control module is established in a point tune AGC control terminals, the virtual Wind turbines of corresponding each province's tune are established in wind-powered electricity generation control module, so as to implement the indirect control to each province's tune wind-powered electricity generation in region.A wind-powered electricity generation control module is established in tune AGC is saved, implements wind power control.Divide the tune AGC power generation indexs of each province's tune wind-powered electricity generation of rolling planning first, while detect the output stability of virtual Wind turbines and the stability of power generation index, if virtual Wind turbines all meet stable and power generation index of contributing and stablize, peak-frequency regulation pattern can be put into.Under peak-frequency regulation pattern, control zone ACE is given to each virtual Wind turbines according to given pro rate, virtual Wind turbines obtain total control targe plus ACE sendouts on the basis of the index that generates electricity as frequency modulation increment again, save and AGC is adjusted to be controlled according to the master control target wind power plant in region.
Description
Technical field
The present invention relates to electric system real power control technical field, particularly it is a kind of be suitable for large-scale wind power it is grid-connected after,
Control framework is coordinated based on two-level scheduler, by participating in peak load regulation network, the AGC control systems that frequency modulation realization wind-powered electricity generation is issued additional and control
Method.
Background technology
Wind-power electricity generation is at present in addition to water power, a kind of renewable energy power generation side that technology is most ripe, economic benefit is best
Formula.After being incorporated into the power networks of large-scale wind power, randomness, fluctuation and the intermittent feature of wind-powered electricity generation are to power network safety operation
Influence gradually show.With putting into operation for domestic multiple ten million multikilowatt wind power bases, power grid is ensureing safety and stability fortune
Row and the difficulty for ensureing all to dissolve wind-powered electricity generation on the premise of real power control performance gradually increase, while to dispatching of power netwoks and have power control
System also proposed higher requirement.
According to the requirement of national new energy policy, the mode that power grid is taken priority scheduling and fully purchased after wind-electricity integration is come
Receive wind power resources.After large-scale wind power is grid-connected, wind-powered electricity generation climbing and descending rate are too fast, and " anti-tune peak ", intermittent nature increase greatly
Power grid has been added to adjust spare capacity needs to conventional energy resource, has improved and adjusts resource performance requirement, reduce operation of power networks economy
Property.In terms of the real power control situation of grid connected wind power, although many wind power plants possess the ability for receiving distant place control, go out from currently
Lack in wind-powered electricity generation real power control experience and the reasons such as wind power resources maximally utilize, wind-powered electricity generation real power control are still counted a few days ago in tracking
The stage drawn, wind power plant plan to be influenced by wind power prediction precision and the whole network system loading prediction result a few days ago, and wind-powered electricity generation has power control
System is more rough, and wind power resources utilizing status is bad.Therefore, in order to fully realize that wind power resources maximally utilize, must just get rid of
Existing planned value control model is abandoned, wind power plant is introduced into routine AGC controls, carries out integrated and area of the wind-powered electricity generation with conventional energy resource
It does not control, realizes and based on wind-powered electricity generation the coordination of the wind-powered electricity generation and conventional energy resource of ability is received to control.
In electric system for wind power integration real power control technology at present there are as below methods：
Document one《A large amount of wind-powered electricity generations introduce frequency characteristics control during power grid》(volume 32 of Automation of Electric Systems 2008
1 phase page 29) on the basis of asynchronous motor frequency characteristic is analysed in depth, using the power disturbance device developed to difference
The frequency characteristic of the asynchronous motor of torque characteristics is tested.Thinking based on weighted comprehensive is established comprising asynchronous electric
The frequency characteristic model of the synthetic load of machine, while analyze the power producing characteristics of wind-power electricity generation.By being sent out comprising wind-force one
The power grid of electricity is analyzed, and is demonstrated after considering frequency character of load, in the case of similary power grid frequency modulation ability, frequency wave
Dynamic deviation can become smaller.
Document two《The simulation study of double-fed variable-speed wind-power unit FREQUENCY CONTROL》(volume 31 of Automation of Electric Systems 2007
7th phase page 61) based on double-fed variable-speed wind-power unit model, according to double-fed variable-speed wind-power unit allocation feature and controlled
Journey adds frequency control link in power system simulation software, and when system frequency changes, double-fed variable-speed wind-power unit leads to
Crossing a part of kinetic energy that release is either absorbed in rotor accordingly increases or reduces active power output, realizes the frequency of Wind turbines
Rate controls.The simulation results show validity and practicability of frequency control link, and demonstrate by increasing additional frequency control
Link processed, wind power plant can participate in system frequency adjustment to a certain extent.
Above-mentioned document participates in first and second FREQUENCY CONTROL skill of power grid from Wind turbines and farm model and characteristic, electricity respectively
The different levels such as art disclose the active power dispatch technology after wind power integration.
Document three《A kind of wind-powered electricity generation Optimization Scheduling of meter and power system security constraints》(Automation of Electric Systems 2010
The phase page 71 of volume 34 the 15th) propose it is a kind of according to wind power prediction, network load predict and save between tie line plan, meter and
The constraintss such as electricity net safety stable formulate the Optimization Scheduling of output of wind electric field plan.Article propose method be mainly
Net saves scheduling institution coordination optimization and arranges conventional energy resource unit, reserves wind power output space and ensures wind power plant active power output in safety
Stable operation in region receives wind-powered electricity generation to create conditions to the greatest extent for power grid.
The wind-powered electricity generation Optimization Scheduling that document three proposes, plan to accomplish a few days ago by reasonable arrangement system operation economy and
The balance that wind-powered electricity generation utmostly accesses, and pass through electricity net safety stable after wind power plant tracking safety zone curve guarantee wind power integration
Operation.It is saved from net and adjusts resource coordination, the different levels such as resource transfer method optimizing and power grid security angle disclose wind-powered electricity generation and connect
The active power controller technology of power grid and wind power plant after entering, but not from real-time control and AGC angle analysis wind-powered electricity generation and often
Rule energy coordination is described active power of wind power field control technology.
Document four《System control of large scale wind power by use of automatic
generation control(AGC)》(Quality and Security of Electric Power Delivery
Systems,2003.CIGRE/PES 2003.CIGRE/IEEE PES International Symposium 8-
10Oct.2003 On page (s):It 15-21) proposes and wind-powered electricity generation actual generation power and plan generated output deviation is introduced into AGC
Control, from electricity market angle analysis wind power integration and system control problem.
The deviation equilibrium problem that document four is mainly contributed from the actual output of electricity market angle analysis wind-powered electricity generation and plan, works as wind
The actual output of electric field and plan are contributed when having deviation, and skew component introduces AGC controls, other energy is called to meet automatically by AGC
Power deviation demand realizes consumption, power-balance and the frequency stabilization of wind power resources.The problem of document four discusses is confined to wind-powered electricity generation
Field is actual to contribute and plan output deviation, and main points of view is to discuss that problem is completed in wind power plant plan, is not studied in extensive wind
Wind electricity digestion problem when being had an impact after electric field access to electricity net safety stable.
Document five《Research on Active Power Real-Time Dispatching of Wind Farm
Integration》(Power and Energy Engineering Conference(APPEEC),2010Asia-
Pacific,28-31March 2010,On page(s):1-4) power characteristic of large-scale wind power field is analyzed, it is proposed that big
Scale wind power plant accesses the flexible scheduling method of power grid, thinks that wind power plant should by emulation and Comparative Study, document five
A part of pondage is reserved according to the result of super short period load forecast to tackle the primary and secondary adjustment of frequency, to reduce wind-powered electricity generation
Field power swing, improves operation of power networks stability and economy.
Document five from wind power plant reserve pondage angle analysis reduce large-scale wind power access after wind-powered electricity generation intermittence to electricity
The adverse effect generated is netted, but wind power plant is required to reserve a part of pondage according to super short period load forecast result and run counter to and is worked as
The basic demand of wind power resources is dissolved in preceding new energy development policies as far as possible.
Document six《Consider the large-scale wind power real power control of section security constraint》(electric power network technique, 2015 (4):1014-
1018) propose a kind of real power control method of large-scale wind power layering section, according to large-scale wind power send out section it is tree-shaped,
The characteristics of multilayer nest and active power one-way, under conditions of given section layered structure, wind-powered electricity generation tune was distributed using wide area
The method for saving power, the out-of-limit section of depth-first search and generating capacity transfer realizes that multi-level section adjusts the distribution of power,
The utilization rate of power grid section and operation of power networks economy can be not only promoted, but also the regulation and control pressure of dispatcher can be mitigated.
Document six utilizes as far as possible from electric network composition and power system security constraints on the premise of power system security constraints are met
The ability to transmit electricity of passway for transmitting electricity realizes maximally utilizing for wind power resources.
Patent《The wind-powered electricity generation additional issue control method that a kind of point-province two-stage is coordinated》It discloses a kind of point-province adjusting body and coordinates control
System strategy divides and a side is adjusted to carry out the power generation index that global optimization draws the whole network, then gives power generation Distribution Indexes to each province's tune, is adjusted by saving
Single wind power plant is controlled, realizes that wind-powered electricity generation coordinates additional issue function.
The content of the invention
The technical problem to be solved in the present invention is, based on tune-province's tune two-level scheduler is divided to coordinate control framework, in a point tune AGC
(Automatic Generation Control, Automatic Generation Control) system-computed obtains the wind electricity digestion index of each province's tune
On the basis of, further according to the ACE (Area Control Error, district control deviation) of the whole network control zone, participated in using wind-powered electricity generation
Peak-frequency regulation further realizes wind-powered electricity generation additional issue, improves digestion capability of the power grid to wind-powered electricity generation.
The technical solution that the present invention takes is：A kind of wind-powered electricity generation participates in the AGC control systems of peak-frequency regulation, based on " dividing tune-province
Adjust " coordinate to control framework, " point tune-province's tune ", which coordinates control framework, to be included point tune AGC control terminals and saves to adjust wind-powered electricity generation control terminal；
Divide and AGC control terminals is adjusted to include for the main control module of interconnected network general areas control and for wind power plant control
Wind-powered electricity generation control module；
It saves and wind-powered electricity generation control terminal is adjusted to include multiple province's tune wind-powered electricity generation control modules, each province's tune wind-powered electricity generation control module is for a control
The wind power control of multiple wind power plants in region；
Divide the virtual Wind turbines established in the wind-powered electricity generation control module for adjusting AGC control terminals and have corresponding each control area wind power plant
Model, the AGC control objects as wind-powered electricity generation control module；
The control parameter data of wind power plant in each province tune wind-powered electricity generation control module Statisti-cal control region are uploaded to wind-powered electricity generation control mould
The respective virtual wind turbine model of block；Wind-powered electricity generation control module obtains corresponding control parameter by each virtual wind turbine model
Data and adjust wind-powered electricity generation control module forwarding wind-powered electricity generation control command data to corresponding save；
Each province's tune wind-powered electricity generation control module according to the wind-powered electricity generation control command data received to the wind power plant in control area into
Sector-style electric control.
Further, the control parameter data of wind power plant include in the control area of province's tune wind-powered electricity generation control module：Control
The actual output of multiple wind power plants, adjustable range and AGC controllable signals in region processed.These control parameter data will more after uploading
New is the control parameter of respective virtual wind turbine model.
Divide the main control module for adjusting AGC control terminals, implement one's duty and adjust general areas of the AGC control areas in interconnected network
Control, control targe is maintains the frequency of this control area power grid in control range or maintains this control area and other
The adjacent point of exchange power for adjusting AGC control areas is that given planned value or above-mentioned two control targe meet simultaneously.Above-mentioned routine
Region control is the prior art.
The wind-powered electricity generation control module of AGC point is adjusted, which to be issued to the control command datas of virtual Wind turbines, includes each province tune AGC
Control targe, point adjusts AGC according to the control parameter data obtained from virtual Wind turbines, according to generate electricity index tracing mode or
By each virtual wind turbine model, control life is sent to each corresponding province's tune wind-powered electricity generation control module for peak-frequency regulation control model
Make data；
Under the index tracing mode that generates electricity, control targe is each province tune control area obtained according to setting time interval calculation
Corresponding wind-powered electricity generation power generation achievement data；
Under peak-frequency regulation control model, control targe for wind-powered electricity generation generate electricity achievement data and region AEC frequency modulation components and.
A kind of wind-powered electricity generation for the AGC control systems that peak-frequency regulation is participated in based on above-mentioned wind-powered electricity generation participates in the AGC controls of peak-frequency regulation
Method, including：
S1 establishes " dividing tune-province's tune " coordinated control system framework, obtains the corresponding control zone of each province's tune wind-powered electricity generation control module
The control parameter of multiple wind power plants in domain according to the control parameter got, updates each virtual wind turbine model；
The wind-powered electricity generation control module of S2, point tune AGC pass through according to power generation index tracing mode or peak-frequency regulation control model
Each virtual wind turbine model sends control command data to each corresponding province's tune wind-powered electricity generation control module；
Under the power generation index tracing mode, wind-powered electricity generation control module is sent to the control command number of virtual wind turbine model
According to including real-time wind-powered electricity generation power generation index；Under the peak-frequency regulation control model, wind-powered electricity generation control module is sent to virtual Wind turbines
The control command data of model includes real-time wind-powered electricity generation power generation index and the control zone ACE amounts of sharing；
S3, each province's tune wind-powered electricity generation control module obtain control command data from corresponding virtual wind turbine model, and according to
Control command data carries out AGC controls to each wind power plant in corresponding control area.
Preferably, step S2 of the present invention includes：
S21, point wind-powered electricity generation control module for adjusting AGC control terminals at set time intervals, calculate corresponding each province's tune wind-powered electricity generation
The wind-powered electricity generation power generation index of the corresponding virtual Wind turbines of control module；
S22, wind-powered electricity generation control module judge each virtual wind turbine model whether and meanwhile meet output stable condition and power generation
Index stable condition：If then wind-powered electricity generation control module is issued according to power generation index tracing mode to corresponding virtual Wind turbines
Include the control command data of real-time wind-powered electricity generation power generation index；Wind-powered electricity generation control module controls mould according to peak-frequency regulation if being unsatisfactory for
Formula issues the control command number of generate electricity including real-time wind-powered electricity generation index and the control zone ACE amounts of sharing to corresponding virtual Wind turbines
According to.
Further, the output stable condition is：The virtual Wind turbines of rolling calculation are contributed at set time intervals
Whether the adjusting target with last AGC controls is into target dead zone, if into control targe dead zone and holding time more than setting
Fixed duration threshold, then it is assumed that virtual Wind turbines meet output stable condition, and running precision is preferable.The control
Target maintains duration threshold to may be configured as 20s.
It is described power generation index stable condition be：According to the wind-powered electricity generation power generation index of point tune control area totality, void is calculated
Intend the power generation index of Wind turbines, if the power generation index and the upper and lower deviation of virtual Wind turbines installed capacity that are calculated are equal
No more than given threshold value, then it is assumed that virtual robot arm meets power generation index stable condition.
Preferably, S21 includes：
S211 calculates point wind-powered electricity generation power generation index I for adjusting AGC control areas totalitywind-all：
Iwind-all=Vforecast-Ptie-line-plan-Vh-reg-Vreserve-reg-Vreserve-plant+Vpump (1)
In formula, VforecastFor point load prediction adjusted, Ptie-line-planInterconnection general plan, V are adjusted for pointh-regSystem is adjusted for point
Adjustable, the V of fire tuning electricity minimumreserve-regFor reserved lower spinning reserve, Vreserve-plantIt contributes for Fen Tiao power plants for self-supply；VpumpFor hair
Electricity draws water power；
S212 according to the installed capacity pro rate of multiple province's tune in point tune AGC control areas, calculates each province's tune and corresponds to
Virtual Wind turbines wind-powered electricity generation power generation index Iwind-pro：
In formula, Cwind-iFor the corresponding wind-powered electricity generation total installation of generating capacity of i-th of province's tune, n is virtual wind turbine in point tune control area
The quantity of group；Iwind-pro-iFor the wind-powered electricity generation power generation index of i-th of province.
Preferably, in S22, under the index tracing mode that generates electricity, a point tune wind-powered electricity generation control module is issued to each virtual Wind turbines
Control command data in real-time wind-powered electricity generation power generation index, be that corresponding save adjusts the wind-powered electricity generation power generation of corresponding virtual Wind turbines to refer to
Mark Iwind-pro。
Preferably, in S22, under peak-frequency regulation control model, divide and adjust wind-powered electricity generation control module to corresponding virtual Wind turbines
In the control command data issued, real-time wind-powered electricity generation power generation index is the corresponding wind-powered electricity generation power generation for saving and adjusting corresponding virtual Wind turbines
Index Iwind-pro；The computational methods of the control zone ACE amounts of sharing comprise the following steps：
S221, the control model that point tune AGC main control modules adjust control area according to current point calculate to divide and adjust a control area
Real-time ACE；
S222 if the real-time ACE being calculated is less than the less urgent threshold value of default negative sense, is controlled in peak-frequency regulation
The frequency modulation additional issue regulated quantity of all virtual Wind turbines of pattern is ACEwind：
ACEwind=K × ACE (4)
In formula, K is wind-powered electricity generation frequency modulation distribution factor, for a positive number less than 1；
Then participate in the frequency modulation additional issue regulated quantity P of each virtual Wind turbines of peak-frequency regulationregFor：
In formula, Preg-iThe frequency modulation distributed for the virtual Wind turbines of i-th of participation peak-frequency regulation issues additional regulated quantity；Ci
For the installed capacity of the virtual Wind turbines of i-th of participation peak-frequency regulation；N is the number for the virtual Wind turbines for participating in peak-frequency regulation
Amount；
Each corresponding province's tune wind-powered electricity generation control module of virtual Wind turbines for participating in peak-frequency regulation, to wind-powered electricity generation in its control area
Field carries out the control targe P of AGC controlsgendesFor：
Pgendes=Pindex+Preg (6)
In formula, PindexFor the basic point power of virtual Wind turbines, value is equal to the wind-powered electricity generation power generation index of virtual Wind turbines
Iwind-pro。
At this point, the regulated quantity of conventional Hydro-Thermal Systems unit totality is：
ACEgeneral=α × (1-K) × ACE (7)
In formula, α is adjustment factor.
The uncertainty of power grid frequency modulation process medium-rate, degree of regulation and wind-resources is participated in view of wind-powered electricity generation, is being carried out
During distribution, side reaction coefficient is necessarily arranged to be more than 1, it is ensured that grid generation passes through wind-powered electricity generation and the joint tune of conventional power unit there are during vacancy
It is whole, ensure that grid power balances and met.
Each province's tune wind-powered electricity generation control module from virtual Wind turbines after control targe is obtained, by control targe according to control zone
The installed capacity pro rate of each wind power plant is allocated in domain, is the prior art.
Further, for being in the virtual Wind turbines of peak-frequency regulation pattern, point a wind-powered electricity generation control module is adjusted to obtain in real time
The corresponding control parameter for saving and adjusting AGC control areas is taken, if actual contribute enters target control dead zone in setting time, then it is assumed that
AGC tracking is qualified, and corresponding virtual Wind turbines continue to participate in peak-frequency regulation；Otherwise it is assumed that corresponding save adjusts AGC control areas
Wind-resources deficiency, the control mode switch by corresponding virtual Wind turbines are the index tracing mode that generates electricity, i.e., next peak regulation
The frequency modulation cycle, the virtual Wind turbines were not involved in peak-frequency regulation.Above-mentioned setting time may be configured as 60 seconds.
Advantageous effect
The wind-powered electricity generation of the present invention participates in the AGC control methods of peak-frequency regulation, coordinates control cage based on the two-stage of tune-province's tune is divided
Structure, while design wind-powered electricity generation participates in tracking wind-powered electricity generation power generation index, according to the whole network main control area ACE situations, when ACE needs to increase to be negative
When adding output, by the adjustment state of the virtual Wind turbines of real-time judge, wind power plant is allowed to undertake the frequency modulation amount for increasing and contributing, is reached
Both frequency adjustment demand had been met, and can cause wind-powered electricity generation additional issue, further improve wind electricity digestion level.
Description of the drawings
Fig. 1 show present system configuration diagram；
Fig. 2 show the method for the present invention flow diagram.
Specific embodiment
It is further described below in conjunction with the drawings and specific embodiments.
Embodiment 1
Refering to what is shown in Fig. 1, the wind-powered electricity generation of the present invention participates in the AGC control systems of peak-frequency regulation, coordinated based on " dividing tune-province's tune "
Framework is controlled, " dividing tune-province's tune " coordinates that framework is controlled to adjust AGC control terminals and province's tune wind-powered electricity generation control terminal including dividing；
Divide and AGC control terminals is adjusted to include for the main control module of interconnected network general areas control and for wind power plant control
Wind-powered electricity generation control module；
It saves and wind-powered electricity generation control terminal is adjusted to include multiple province's tune wind-powered electricity generation control modules, each province's tune wind-powered electricity generation control module is for a control
The wind power control of multiple wind power plants in region；
Divide the virtual Wind turbines established in the wind-powered electricity generation control module for adjusting AGC control terminals and have corresponding each control area wind power plant
Model, the AGC control objects as wind-powered electricity generation control module；
The control parameter data of wind power plant in each province tune wind-powered electricity generation control module Statisti-cal control region are uploaded to wind-powered electricity generation control mould
The respective virtual wind turbine model of block；Wind-powered electricity generation control module obtains corresponding control parameter by each virtual wind turbine model
Data and adjust wind-powered electricity generation control module forwarding wind-powered electricity generation control command data to corresponding save；
Each province's tune wind-powered electricity generation control module according to the wind-powered electricity generation control command data received to the wind power plant in control area into
Sector-style electric control.
Saving the control parameter data of wind power plant in the control area for adjusting wind-powered electricity generation control module includes：Multiple wind in control area
Actual output, adjustable range and the AGC controllable signals of electric field.These control parameter data will be updated to respective virtual wind after uploading
The control parameter of motor group model.
Divide the main control module for adjusting AGC control terminals, implement one's duty and adjust general areas of the AGC control areas in interconnected network
Control, control targe is maintains the frequency of this control area power grid in control range or maintains this control area and other
The adjacent point of exchange power for adjusting AGC control areas is that given planned value or above-mentioned two control targe meet simultaneously.Above-mentioned routine
Region control is the prior art.
The wind-powered electricity generation control module of AGC point is adjusted, which to be issued to the control command datas of virtual Wind turbines, includes each province tune AGC
Control targe, point adjusts AGC according to the control parameter data obtained from virtual Wind turbines, according to generate electricity index tracing mode or
By each virtual wind turbine model, control life is sent to each corresponding province's tune wind-powered electricity generation control module for peak-frequency regulation control model
Make data；
Under the index tracing mode that generates electricity, control targe is each province tune control area obtained according to setting time interval calculation
Corresponding wind-powered electricity generation power generation achievement data；
Under peak-frequency regulation control model, control targe for wind-powered electricity generation generate electricity the frequency modulation component of achievement data and region AEC and.
Embodiment 2
Refering to what is shown in Fig. 2, the wind-powered electricity generation that the AGC control systems of peak-frequency regulation are participated in based on above-mentioned wind-powered electricity generation participates in peak-frequency regulation
AGC control methods, including：
S1 establishes " dividing tune-province's tune " coordinated control system framework, obtains the corresponding control zone of each province's tune wind-powered electricity generation control module
The control parameter of multiple wind power plants in domain according to the control parameter got, updates each virtual wind turbine model；
The wind-powered electricity generation control module of S2, point tune AGC pass through according to power generation index tracing mode or peak-frequency regulation control model
Each virtual wind turbine model sends control command data to each corresponding province's tune wind-powered electricity generation control module；
Under the power generation index tracing mode, wind-powered electricity generation control module is sent to the control command number of virtual wind turbine model
According to including real-time wind-powered electricity generation power generation index；Under the peak-frequency regulation control model, wind-powered electricity generation control module is sent to virtual Wind turbines
The control command data of model includes real-time wind-powered electricity generation power generation index and the control zone ACE amounts of sharing；
S3, each province's tune wind-powered electricity generation control module obtain control command data from corresponding virtual wind turbine model, and according to
Control command data carries out AGC controls to each wind power plant in corresponding control area.
Step S2 includes：
S21, point wind-powered electricity generation control module for adjusting AGC control terminals at set time intervals, calculate corresponding each province's tune wind-powered electricity generation
The wind-powered electricity generation power generation index of the corresponding virtual Wind turbines of control module；
S22, wind-powered electricity generation control module judge each virtual wind turbine model whether and meanwhile meet output stable condition and power generation
Index stable condition：If then wind-powered electricity generation control module is issued according to power generation index tracing mode to corresponding virtual Wind turbines
Include the control command data of real-time wind-powered electricity generation power generation index；Wind-powered electricity generation control module controls mould according to peak-frequency regulation if being unsatisfactory for
Formula issues the control command number of generate electricity including real-time wind-powered electricity generation index and the control zone ACE amounts of sharing to corresponding virtual Wind turbines
According to.
The output stable condition is：The virtual Wind turbines of rolling calculation are contributed and the last time at set time intervals
Whether the adjusting target of AGC controls is into target dead zone, if continuing into control targe dead zone and holding time more than setting
Time period threshold, then it is assumed that virtual Wind turbines meet output stable condition, and running precision is preferable.The control targe maintains
Duration threshold may be configured as 20s.
Power generation index stable condition be：According to the wind-powered electricity generation power generation index of point tune control area totality, virtual wind is calculated
The power generation index of motor group, if the power generation index and the upper and lower deviation of virtual Wind turbines installed capacity that are calculated do not surpass
Cross given threshold value, then it is assumed that virtual robot arm meets power generation index stable condition.
Step S21 includes：
S211 calculates point wind-powered electricity generation power generation index I for adjusting AGC control areas totalitywind-all：
Iwind-all=Vforecast-Ptie-line-plan-Vh-reg-Vreserve-reg-Vreserve-plant+Vpump (1)
In formula, VforecastFor point load prediction adjusted, Ptie-line-planInterconnection general plan, V are adjusted for pointh-regSystem is adjusted for point
Adjustable, the V of fire tuning electricity minimumreserve-regFor reserved lower spinning reserve, Vreserve-plantIt contributes for Fen Tiao power plants for self-supply；VpumpFor hair
Electricity draws water power；
S212 according to the installed capacity pro rate of multiple province's tune in point tune AGC control areas, calculates each province's tune and corresponds to
Virtual Wind turbines wind-powered electricity generation power generation index Iwind-pro：
In formula, Cwind-iFor the corresponding wind-powered electricity generation total installation of generating capacity of i-th of province's tune, n is virtual wind turbine in point tune control area
The quantity of group；Iwind-pro-iFor the wind-powered electricity generation power generation index of i-th of province.
In S22, under the index tracing mode that generates electricity, point tune wind-powered electricity generation control module is ordered to the control that each virtual Wind turbines issue
Real-time wind-powered electricity generation in data is made to generate electricity index, is the corresponding wind-powered electricity generation power generation index for saving and adjusting corresponding virtual Wind turbines
Iwind-pro。
In S22, under peak-frequency regulation control model, divide the control that wind-powered electricity generation control module is adjusted to be issued to corresponding virtual Wind turbines
In order data processed, real-time wind-powered electricity generation power generation index is the corresponding wind-powered electricity generation power generation index for saving and adjusting corresponding virtual Wind turbines
Iwind-pro；The computational methods of the control zone ACE amounts of sharing comprise the following steps：
S221, the control model that point tune AGC main control modules adjust control area according to current point calculate to divide and adjust a control area
Real-time ACE；
S222 if the real-time ACE being calculated is less than the less urgent threshold value of default negative sense, is controlled in peak-frequency regulation
The frequency modulation additional issue regulated quantity of all virtual Wind turbines of pattern is ACEwind：
ACEwind=K × ACE (4)
In formula, K is wind-powered electricity generation frequency modulation distribution factor, for a positive number less than 1；
Then participate in the frequency modulation additional issue regulated quantity P of each virtual Wind turbines of peak-frequency regulationregFor：
In formula, Preg-iThe frequency modulation distributed for the virtual Wind turbines of i-th of participation peak-frequency regulation issues additional regulated quantity；Ci
For the installed capacity of the virtual Wind turbines of i-th of participation peak-frequency regulation；
Each corresponding province's tune wind-powered electricity generation control module of virtual Wind turbines for participating in peak-frequency regulation, to wind-powered electricity generation in its control area
Field carries out the control targe P of AGC controlsgendesFor：
Pgendes=Pindex+Preg (6)
In formula, PindexFor the basic point power of virtual Wind turbines, value is equal to the wind-powered electricity generation power generation index of virtual Wind turbines
Iwind-pro。
At this point, the regulated quantity of conventional Hydro-Thermal Systems unit totality is：
ACEgeneral=α × (1-K) × ACE (7)
In formula, α is adjustment factor.
The uncertainty of power grid frequency modulation process medium-rate, degree of regulation and wind-resources is participated in view of wind-powered electricity generation, is being carried out
During distribution, side reaction coefficient is necessarily arranged to be more than 1, it is ensured that grid generation passes through wind-powered electricity generation and the joint tune of conventional power unit there are during vacancy
It is whole, ensure that grid power balances and met.
Each province's tune wind-powered electricity generation control module from virtual Wind turbines after control targe is obtained, by control targe according to control zone
The installed capacity pro rate of each wind power plant is allocated in domain, is the prior art.
Further, for being in the virtual Wind turbines of peak-frequency regulation pattern, point a wind-powered electricity generation control module is adjusted to obtain in real time
The corresponding control parameter for saving and adjusting AGC control areas is taken, if actual contribute enters target control dead zone in setting time, then it is assumed that
AGC tracking is qualified, and corresponding virtual Wind turbines continue to participate in peak-frequency regulation；Otherwise it is assumed that corresponding save adjusts AGC control areas
Wind-resources deficiency, the control mode switch by corresponding virtual Wind turbines are the index tracing mode that generates electricity, i.e., next peak regulation
The frequency modulation cycle, the virtual Wind turbines were not involved in peak-frequency regulation.Above-mentioned setting time may be configured as 60 seconds.
The wind-powered electricity generation of the present invention participates in the AGC control methods of peak-frequency regulation, coordinates control cage based on the two-stage of tune-province's tune is divided
Structure, while design wind-powered electricity generation participates in tracking wind-powered electricity generation power generation index, according to the whole network main control area ACE situations, when ACE needs to increase to be negative
When adding output, by the adjustment state of the virtual Wind turbines of real-time judge, wind power plant is allowed to undertake the frequency modulation amount for increasing and contributing, is reached
Both frequency adjustment demand had been met, and can cause wind-powered electricity generation additional issue, further improve wind electricity digestion level.
Embodiment 3
With reference to Fig. 1 and Fig. 2, the present invention in point tune AGC applications again when it is implemented, establish a main control region first
(main control module) implements the general areas control of interconnected network, implements conventional frequency and interconnection work(using conventional power unit
Rate controls.A wind-powered electricity generation control zone (wind-powered electricity generation control module) is separately established again in a point tune AGC applications, which mainly implements to dividing
Adjust the indirect control of internal each province's tune wind-powered electricity generation.The virtual Wind turbines of corresponding each province's tune are established in wind-powered electricity generation control zone, often
A province's tune corresponds to a virtual Wind turbines.A wind-powered electricity generation control area is established in tune AGC is saved, implements wind power control,
It saves and adjusts the wind-powered electricity generation control zone of AGC with wind power plant object in order to control.
It saves and adjusts AGC by counting the actual output of each wind power plant, adjustable range, AGC controllable signals in wind-powered electricity generation control zone
Formation province, which adjusts, to be sent in overall wind-powered electricity generation control parameter information to a point tune control terminal, is established as dividing to adjust in AGC wind-powered electricity generations control area
Virtual controlling unit allocation parameter.
After a point tune, province's tune AGC architecture designs and the modeling of virtual Wind turbines is completed, in a point tune AGC sides progress wind-powered electricity generation
Additional issue control, design power generation two kinds of control models of index tracing mode and peak-frequency regulation control model, divides and adjusts AGC according to virtual wind
The operating status control parameter of motor group carries out the judgement stablized and generate electricity index stabilization of contributing, and realizes to virtual Wind turbines control
The automatic switchover of molding formula.
After each province's tune puts into wind-powered electricity generation control function, point tune AGC is first, in accordance with the time for setting (such as every 5 minutes once)
Interval calculates point total wind-powered electricity generation for adjusting a control area power generation index：
Iwind-all=Vforecast-Ptie-line-plan-Vh-reg-Vreserve-reg-Vreserve-plant+Vpump (1)
Obtaining point power generation index I for adjusting totalitywind-allAfterwards, according still further to multiple province's tune installed capacity pro rates, obtain
The wind-powered electricity generation power generation index of each province's tune：
After the wind-powered electricity generation power generation index of each province's tune has been calculated, point tune AGC corresponds to the control of virtual Wind turbines according to each province's tune
Molding formula sets the control targe of virtual Wind turbines automatically.If the control model of virtual Wind turbines is tracking index control
Molding formula, then the control targe of the virtual Wind turbines is the wind-powered electricity generation power generation index I being calculatedwind-pro；If virtual wind
The control model of motor group is peak-frequency regulation control model, then into following calculating：
Divide the control model that AGC is adjusted to be used according to Fen Tiao main controls area, calculate point real-time ACE (Area for adjusting control zone
Control Error).By taking TBC (Tie-Line Bias Control, tie-line bias control pattern) as an example, under TBC patterns
Point adjust control zone ACE be：
ACE=Treal-Tsche+B×Δf (3)
In formula：TrealArea's external contact line actual transmission power in order to control；TscheArea's external contact line planned transmission in order to control
Power；B area's frequency deviation coefficients in order to control；Δ f is mains frequency deviation.
At this time if ACE is less than the less urgent threshold value of the pre-set negative sense of power grid (being, for example, -200MW), calculate and divide
Adjust control area in the integrally-regulated amounts of ACE be：
ACEwind=K × ACE (4)
Then participate in the frequency modulation additional issue regulated quantity P of each virtual Wind turbines of peak-frequency regulationregFor：
Each corresponding province's tune wind-powered electricity generation control module of virtual Wind turbines for participating in peak-frequency regulation, to wind-powered electricity generation in its control area
Field carries out the control targe P of AGC controlsgendesFor：
Pgendes=Pindex+Preg (6)
In formula, PindexFor the basic point power of virtual Wind turbines, value is equal to the wind-powered electricity generation power generation index of virtual Wind turbines
Iwind-pro。
At this point, the regulated quantity of conventional Hydro-Thermal Systems unit totality is：
ACEgeneral=α × (1-K) × ACE (7)
In formula, α is adjustment factor.
The uncertainty of power grid frequency modulation process medium-rate, degree of regulation and wind-resources is participated in view of wind-powered electricity generation, is being carried out
During distribution, side reaction coefficient is necessarily arranged to be more than 1, it is ensured that grid generation passes through wind-powered electricity generation and the joint tune of conventional power unit there are during vacancy
It is whole, ensure that grid power balances and met.
Divide after AGC is adjusted to obtain the control targe under wind-powered peak regulation hopping pattern according to formula (6), then the control targe is passed through
Virtual Wind turbines are handed down to province tune wind-powered electricity generation AGC, by saving wind-powered electricity generation AGC are adjusted to implement to control to single wind power plant.
Point AGC is adjusted to detect virtual Wind turbines control parameter data simultaneously, track AGC under peak-frequency regulation pattern it is actual with
Track situation, if virtual Wind turbines are contributed into target control dead zone, it is believed that tracking is qualified, can continue peak regulation tune
Frequently, if within a specified time (such as 60s) cannot reach to setting the goal, it is believed that wind-resources deficiency, next cycle do not enter
Peak-frequency regulation pattern.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of wind-powered electricity generation participates in the AGC control systems of peak-frequency regulation, based on " dividing tune-province's tune " coordination control framework, described " point
Tune-province's tune ", which coordinates control framework, to be included point tune AGC control terminals and saves to adjust wind-powered electricity generation control terminal；It is characterized in that：
Divide and AGC control terminals is adjusted to include for the interconnected network general areas main control module controlled and the wind controlled for wind power plant
Electric control module；
It saves and wind-powered electricity generation control terminal is adjusted to include multiple province's tune wind-powered electricity generation control modules, each province's tune wind-powered electricity generation control module is used for a control area
The wind power control of interior multiple wind power plants；
Divide the virtual Wind turbines mould established in the wind-powered electricity generation control module for adjusting AGC control terminals and have corresponding each control area wind power plant
Type, the AGC control objects as wind-powered electricity generation control module；
The control parameter data of wind power plant, are uploaded to wind-powered electricity generation control module in each province tune wind-powered electricity generation control module Statisti-cal control region
Respective virtual wind turbine model；Wind-powered electricity generation control module obtains corresponding control parameter number by each virtual wind turbine model
Wind-powered electricity generation control module forwarding wind-powered electricity generation control command data is adjusted according to and to corresponding save；
Each province's tune wind-powered electricity generation control module is according to the wind-powered electricity generation control command data received to the wind power plant in control area into sector-style
Electric control.
2. wind-powered electricity generation according to claim 1 participates in the AGC control systems of peak-frequency regulation, it is characterized in that, province's tune wind-powered electricity generation
The control parameter data of wind power plant include in the control area of control module：The actual output of multiple wind power plants in control area,
Adjustable range and AGC controllable signals.
3. a kind of wind-powered electricity generation for the AGC control systems that peak-frequency regulation is participated in based on the wind-powered electricity generation of claim 1 or 2 participates in peak-frequency regulation
AGC control methods, it is characterized in that, including：
S1 establishes " dividing tune-province's tune " coordinated control system framework, obtains in the corresponding control area of each province's tune wind-powered electricity generation control module
The control parameter of multiple wind power plants according to the control parameter got, updates each virtual wind turbine model；
The wind-powered electricity generation control module of S2, point tune AGC pass through each void according to power generation index tracing mode or peak-frequency regulation control model
Intend wind turbine model, control command data is sent to each corresponding province's tune wind-powered electricity generation control module；
Under the power generation index tracing mode, wind-powered electricity generation control module is sent to the control command data bag of virtual wind turbine model
Include real-time wind-powered electricity generation power generation index；Under the peak-frequency regulation control model, wind-powered electricity generation control module is sent to virtual wind turbine model
Control command data include the real-time wind-powered electricity generation power generation index and control zone ACE amounts of sharing；
S3, each province's tune wind-powered electricity generation control module obtain control command data from corresponding virtual wind turbine model, and according to control
Order data carries out AGC controls to each wind power plant in corresponding control area.
4. according to the method described in claim 3, it is characterized in that, S2 includes：
S21, point wind-powered electricity generation control module for adjusting AGC control terminals at set time intervals, calculate corresponding each province's tune wind-powered electricity generation control
The wind-powered electricity generation power generation index of the corresponding virtual Wind turbines of module；
S22, wind-powered electricity generation control module judge each virtual wind turbine model whether and meanwhile meet output stable condition and power generation index
Stable condition：If then wind-powered electricity generation control module according to power generation index tracing mode, to it is corresponding virtually Wind turbines issue including
The control command data of real-time wind-powered electricity generation power generation index；Wind-powered electricity generation control module is according to peak-frequency regulation control model if being unsatisfactory for, to
Corresponding virtual Wind turbines issue the control command data of generate electricity including real-time wind-powered electricity generation index and the control zone ACE amounts of sharing.
5. according to the method described in claim 4, it is characterized in that, the output stable condition is：It rolls at set time intervals
Whether the dynamic virtual Wind turbines of calculating contribute with the adjusting target of last time AGC controls into target dead zone, if entering control mesh
It marks dead zone and holds time more than the duration threshold of setting, then it is assumed that virtual Wind turbines meet output stable condition.
6. according to the method described in claim 4, it is characterized in that, power generation index stable condition be：Adjust control area total according to point
The wind-powered electricity generation power generation index of body, is calculated the power generation index of virtual Wind turbines, if the power generation index being calculated and virtual wind
The upper and lower deviation of motor assembling machine capacity is no more than given threshold value, then it is assumed that virtual robot arm meets power generation index stablizing bar
Part.
7. according to the method described in claim 4, it is characterized in that, S21 includes：
S211 calculates point wind-powered electricity generation power generation index I for adjusting AGC control areas totalitywind-all：
Iwind-all=Vforecast-Ptie-line-plan-Vh-reg-Vreserve-reg-Vreserve-plant+Vpump (1)
In formula, VforecastFor point load prediction adjusted, Ptie-line-planInterconnection general plan, V are adjusted for pointh-regSystem fire tuning is adjusted for point
Adjustable, the V of electric minimumreserve-regFor reserved lower spinning reserve, Vreserve-plantIt contributes for Fen Tiao power plants for self-supply；VpumpIt is taken out for power generation
Water-horse power；
S212 according to the installed capacity pro rate of multiple province's tune in point tune AGC control areas, calculates the corresponding void of each province's tune
Intend the wind-powered electricity generation power generation index I of Wind turbineswind-pro：
<mrow>
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<mi>i</mi>
<mo>=</mo>
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<mi>C</mi>
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<mi>i</mi>
</mrow>
</msub>
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</mfrac>
<mo>&times;</mo>
<msub>
<mi>I</mi>
<mrow>
<mi>w</mi>
<mi>i</mi>
<mi>n</mi>
<mi>d</mi>
<mo>-</mo>
<mi>a</mi>
<mi>l</mi>
<mi>l</mi>
</mrow>
</msub>
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<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>2</mn>
<mo>)</mo>
</mrow>
</mrow>
In formula, Cwind-iFor the corresponding wind-powered electricity generation total installation of generating capacity of i-th of province's tune, n is virtual Wind turbines in point tune control area
Quantity；Iwind-pro-iFor the wind-powered electricity generation power generation index of i-th of province.
8. according to the method described in claim 4, it is characterized in that, in S22, generate electricity index tracing mode under, point adjust a wind-powered electricity generation control
Real-time wind-powered electricity generation power generation index of the module into the control command data that each virtual Wind turbines issue is that corresponding province's tune is corresponding
The wind-powered electricity generation power generation index I of virtual Wind turbineswind-pro。
9. according to the method described in claim 4, it is characterized in that, in S22, under peak-frequency regulation control model, point adjust a wind-powered electricity generation control
For module into the control command data that corresponding virtual Wind turbines issue, real-time wind-powered electricity generation power generation index is accordingly to save to adjust to correspond to
Virtual Wind turbines wind-powered electricity generation power generation index Iwind-pro；The computational methods of the control zone ACE amounts of sharing comprise the following steps：
S221, the control model that point tune AGC main control modules adjust control area according to current point, calculates the reality divided and adjust control area
When ACE；
S222, if the real-time ACE being calculated is less than the less urgent threshold value of default negative sense, in peak-frequency regulation control model
All virtual Wind turbines frequency modulation additional issue regulated quantity be ACEwind：
ACEwind=K × ACE (4)
In formula, K is wind-powered electricity generation frequency modulation distribution factor, for a positive number less than 1；
Then participate in the frequency modulation additional issue regulated quantity P of each virtual Wind turbines of peak-frequency regulationregFor：
<mrow>
<msub>
<mi>P</mi>
<mrow>
<mi>r</mi>
<mi>e</mi>
<mi>g</mi>
<mo>-</mo>
<mi>i</mi>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>ACE</mi>
<mrow>
<mi>w</mi>
<mi>i</mi>
<mi>n</mi>
<mi>d</mi>
</mrow>
</msub>
<mo>&times;</mo>
<mfrac>
<msub>
<mi>C</mi>
<mi>i</mi>
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</mrow>
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In formula, Preg-iThe frequency modulation distributed for the virtual Wind turbines of i-th of participation peak-frequency regulation issues additional regulated quantity；CiFor
The installed capacity of the virtual Wind turbines of i participation peak-frequency regulation；
Each corresponding province's tune wind-powered electricity generation control module of virtual Wind turbines for participating in peak-frequency regulation, to wind power plant in its control area into
The control targe P of row AGC controlsgendesFor：
Pgendes=Pindex+Preg (6)
In formula, PindexFor the basic point power of virtual Wind turbines, value is equal to the wind-powered electricity generation power generation index of virtual Wind turbines
Iwind-pro。
10. according to the method described in claim 9, it is characterized in that, for being in the virtual Wind turbines of peak-frequency regulation pattern, point
Wind-powered electricity generation control module is adjusted to obtain the corresponding control parameter for saving and adjusting AGC control areas in real time, if it is actual contribute in setting time into
Enter target control dead zone, then it is assumed that AGC tracking is qualified, and corresponding virtual Wind turbines continue to participate in peak-frequency regulation；Otherwise it is assumed that
Corresponding save adjusts AGC control areas wind-resources deficiency, and the control mode switch by corresponding virtual Wind turbines is power generation index
Tracing mode.
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