CN106786792B - Region power station dispatch control method and device - Google Patents
Region power station dispatch control method and device Download PDFInfo
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- CN106786792B CN106786792B CN201611125251.8A CN201611125251A CN106786792B CN 106786792 B CN106786792 B CN 106786792B CN 201611125251 A CN201611125251 A CN 201611125251A CN 106786792 B CN106786792 B CN 106786792B
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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
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- H02J3/382—
-
- 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]
Abstract
The present invention relates to region power station dispatch control method and device, methods described comprises the following steps：Read the generating parameter in each power station of present period dispatcher-controlled territory；According to the duration of present period and the generating parameter in each power station of the dispatcher-controlled territory, using default energy saving optimizing scheduling model, the optimal power generation reference flow for obtaining each power station of present period is solved；If the grid entry point voltage in power station is less than or equal to the default voltage control limit in the power station, flow is quoted according to the optimal power generation and controls the generating in the power station to quote；If the grid entry point voltage in power station is more than predeterminated voltage control limit corresponding to the power station, corrects the optimal power generation and quote flow, quoting flow according to revised optimal power generation controls the generating in the power station to quote.The present invention can reduce the ecological influence to power station upstream and downstream, in the zone of reasonableness of grid entry point voltage, not only improved the utilization ratio in power station but also ensured the safe operation of power network.
Description
Technical field
The present invention relates to electric power technical field, more particularly to a kind of region power station dispatch control method and dress
Put.
Background technology
For a long time, there is the phenomenon of " rebuilding light pipe " in China's small hydropower station.In recent years, traditional water conservancy is to resources WR
Transformation, the resource of small hydropower station how is made full use of, it is negative to reduce environment caused by small hydropower station construction and operation as far as possible
Influence, be increasingly becoming the important research direction of development Green Hydropower.
At present, in energy saving optimizing scheduling there are many distinct issues in small hydropower station：Small hydropower station unordered exploitation for a long time,
Cause the very big difficulty of management aspect；Small hydropower station is mostly the run-off river power station of without regulation, it is difficult to undertake peak load regulation network
Task, flood season water have synchronism with big water power, easily clashed with big-and-middle-sized water power plan, impact power network major network, cause
Large and small hydroelectric station surplus water phenomenon；Small power station's enriching area is generally off-site from load center, and space division cloth property difference is larger at that time, with
Grid contact is weak, and the influence to power network becomes apparent, even defeated as electric power netting safe running, power network is restricted in some cases
Electric energy power and power network receive the main bottleneck of green power generation ability.
In addition, Small Hydropower Construction can cause the change of water quality and water spatial and temporal distributions, river natural functions imbalance can be caused
Degeneration with the ecosystem even destroys, and usually shows the change of the discharge of river change rhythm and pace of moving things, discharge reduction, water quality deterioration, river
Bed deformation, habitat diversity reduction, bio distribution change, bio-diversity reduction etc..
To sum up, the energy saving optimizing scheduling problem of small power station both needs to consider the utilization rate for providing small hydropower resources, needs again
Consider to reduce influence degree of the small power station to neighbouring ecological environment.
The content of the invention
Based on this, it is necessary to provide a kind of region power station dispatch control method, the party the problem of in conventional art
Method can take into account power station utilization ratio and power station upstream and downstream environment water volume.
A kind of region power station dispatch control method, comprises the following steps：
The generating parameter in each power station of present period dispatcher-controlled territory is read, wherein, the generating parameter is drawn including generating
With flow, generating average water head and grid entry point voltage；
According to the duration of present period and the generating parameter in each power station of the dispatcher-controlled territory, default energy-conservation is utilized
Optimal Operation Model, solve the optimal power generation reference flow for obtaining each power station of present period；
If the grid entry point voltage in power station is less than or equal to the default voltage control limit in the power station, according to institute
Stating optimal power generation reference flow controls the generating in the power station to quote；
If the grid entry point voltage in power station is more than predeterminated voltage control limit corresponding to the power station, described in amendment
Optimal power generation quotes flow, and quoting flow according to revised optimal power generation controls the generating in the power station to quote.
Correspondingly, the present invention also provides a kind of region power station dispatching control device, including following module：
First read module, for reading the generating parameter in each power station of present period dispatcher-controlled territory, wherein, the hair
Electrical parameter, which includes generating electricity, quotes flow, generating average water head and grid entry point voltage；
Optimal quote solves module, for the duration according to present period and the hair in each power station of the dispatcher-controlled territory
Electrical parameter, using default energy saving optimizing scheduling model, solve the optimal power generation reference flow for obtaining each power station of present period；
First control module, it is less than or equal to the default voltage in the power station for the grid entry point voltage in power station
During control limit, flow is quoted according to the optimal power generation and controls the generating in the power station to quote；
Second control module, it is more than predeterminated voltage control corresponding to the power station for the grid entry point voltage in power station
During limit value processed, correct the optimal power generation and quote flow, quoting flow according to revised optimal power generation controls the power station
Generate electricity and quote.
The method of the invention reads the generating parameter in each power station of present period dispatcher-controlled territory first；Then basis is worked as
The duration of preceding period and the generating parameter in each power station of the dispatcher-controlled territory, using default energy saving optimizing scheduling model,
Solve the optimal power generation reference flow for obtaining each power station of present period；The grid entry point voltage in power station is less than or equal to
During the default voltage control limit in the power station, flow is quoted according to the optimal power generation and controls the generating in the power station to quote；
When the grid entry point voltage in power station is more than predeterminated voltage control limit corresponding to the power station, then the optimal hair is corrected
Electricity quotes flow, and quoting flow according to revised optimal power generation controls the generating in the power station to quote.Area of the present invention
Domain power station dispatch control method, it can be on the one hand boundary condition using minimum ecological water demand, ensure that power station upstream and downstream
Required environment water volume, the ecological influence to power station upstream and downstream is reduced, it is grid-connected on the other hand to have taken into account small hydropower station
The voltage condition of point, in the range of the reasonable receiving of grid entry point voltage, the utilization ratio in power station was not only improved but also had ensured power network
Safe and stable operation.
Brief description of the drawings
Fig. 1 is a kind of region power station of the invention first embodiment flow chart of dispatch control method；
Fig. 2 is a kind of region power station of the invention second embodiment flow chart of dispatch control method；
Fig. 3 is a kind of region power station of the invention the 3rd embodiment flow chart of dispatch control method；
Fig. 4 is a kind of region power station of the invention the 4th embodiment flow chart of dispatch control method；
Fig. 5 is a kind of region power station of the invention the 5th embodiment flow chart of dispatch control method；
Fig. 6 is the structural representation in a kind of region power station dispatching control device one embodiment of the present invention；
Fig. 7 is the structural representation in a kind of second embodiment of dispatching control device of region power station of the invention；
Fig. 8 is the structural representation in a kind of the 3rd embodiment of dispatching control device of region power station of the invention；
Fig. 9 is the structural representation in last embodiment of a kind of region power station dispatching control device of the invention.
Embodiment
Present disclosure is described in further detail below in conjunction with preferred embodiment and accompanying drawing.Obviously, hereafter institute
The embodiment of description is only used for explaining the present invention, rather than limitation of the invention.It is general based on the embodiment in the present invention, this area
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made, belong to what the present invention protected
Scope.
It should be appreciated that although various information, but these are hereinafter described using term " first ", " second " etc.
Information should not necessarily be limited by these terms, and these terms are only used for same type of information being distinguished from each other out.For example, this is not being departed from
In the case of invention scope, " first " information can also be referred to as " second " information, similar, and " second " information can also be claimed
For " first " information.It also should be noted that for the ease of describing, part related to the present invention is illustrate only in accompanying drawing
Rather than full content.
Fig. 1 is a kind of schematic flow sheet of the region power station dispatch control method of the present invention in one embodiment,
The region power station dispatch control method of the present embodiment can by the processing equipments such as computer CPU, built-in industrial controller Lai
Perform, such as PLC (the programmable logic controllers of Programmable Logic Controller), ARM controller (Acorn
RISC Machine), FPGA (Field-Programmable Gate Array, field programmable gate array) etc..
As shown in figure 1, the region power station dispatch control method in the present embodiment, comprises the following steps：
S110：Read the generating parameter in each power station of present period dispatcher-controlled territory；
Wherein, the generating parameter, which includes generating electricity, quotes flow QNt, generating average water head hNtAnd grid entry point voltage VNt；
In the embodiment of the present invention, according to the power station quantity in dispatcher-controlled territory, to transfer each power station in region according to
Secondary numbering is 1,2 ... ..., N.And the embodiment of the present invention will be divided into T period dispatching cycle, t is present period, wherein, t=
1,2 ... ..., T.
It is described generate electricity quote flowmeter show power station N in present period t the unit interval by the hydraulic turbine and for generating electricity
Water.The reference flow that generates electricity can be measured by the flow measurement device being arranged in the N of power station in the hydraulic turbine to be obtained,
Its unit is cubic meters per second.
The generating average water head represents that arithmetical average heads of the power station N in present period t can also be that electric energy adds
Weight average head, its unit are rice.
The grid entry point voltage can be obtained by being arranged on the voltage measuring apparatus of grid entry point, can also pass through power network tide
Stream calculation obtains.
Those skilled in the art can also obtain the generating in each power station of present period t dispatcher-controlled territories by other means
Parameter.
S120：According to the duration of present period and the generating parameter in each power station of the dispatcher-controlled territory, using default
Energy saving optimizing scheduling model, solve and obtain the optimal power generation in present period each power station and quote flow；
Default energy saving optimizing scheduling model is read, successively by the duration of the present period t and the dispatcher-controlled territory
The generating parameter in each power station is substituted into the energy saving optimizing scheduling model, so as to establish present period t dispatcher-controlled territory water
Power station energy saving optimizing scheduling model, and by asking optimal resolving Algorithm, such as genetic algorithm, simulated annealing, hill-climbing algorithm, grain
Swarm optimization, ant group algorithm etc., solve the optimal power generation reference flow Q for obtaining each power stations of present period tNopt.。
S130：If the grid entry point voltage in power station is less than or equal to the default voltage control limit in the power station,
Quoting flow according to the optimal power generation controls the generating in the power station to quote；
The power station N grid entry point voltage V is judged successivelyNtWhether it is less than or equal to default corresponding to the N of power station
Voltage control limit VCmax.In embodiments of the present invention, the voltage control limit VCmaxSpan be [1.07VN,
1.12VN], wherein, VNFor power station N grid entry point rated voltage.In specific implementation process, it can be pre-entered by user
Or the selection voltage control limit VCmaxSpan in one of value set the voltage control limit VCmax
Specific value, those skilled in the art can also determine the voltage control limit V by other meansCmaxSpan
In one of value set the voltage control limit VCmaxSpecific value.
If power station N grid entry point voltage VNtLimitation is controlled less than or equal to the default voltage corresponding to the N of power station
VCmax, then grid entry point voltage Vs of the power station N in present period t is meanedNtWithin zone of reasonableness, it is only necessary to power station N
Flow Q is quoted according to the optimal power generation corresponding to the power stationNopt.Control power station N generating to quote, that is, control power station N
The generating of subsequent period quotes flow and keeps optimal power generation reference flow Q in dispatching cycleNopt。
S140：If the grid entry point voltage in power station is more than predeterminated voltage control limit corresponding to the power station, repair
Just described optimal power generation quotes flow, and quoting flow according to revised optimal power generation controls the generating in the power station to quote.
If power station N grid entry point voltage VNtMore than the default voltage control limitation V corresponding to the N of power stationCmax, then anticipate
Taste grid entry point voltage Vs of the power station N in present period tNtWithin zone of reasonableness, the optimal power generation quotes flow
QNopt.No longer it is applicable.Now, in embodiments of the present invention, first flow is quoted according to optimal power generation described in preset algorithm amendment
QNopt., flow is then quoted according to revised optimal power generation and controls the generating in the power station to quote, to only needing to power station N
Flow Q is quoted according to the optimal power generation corresponding to the power stationNopt.Control power station N generating to quote, that is, control power station N
The generating of subsequent period quotes flow and keeps the revised optimal power generation reference flow in dispatching cycle.
The present invention reads the generating parameter in each power station of present period dispatcher-controlled territory first；Then according to present period
Duration and the generating parameter in each power station of the dispatcher-controlled territory, using default energy saving optimizing scheduling model, solve and obtain
The optimal power generation in each power station of present period quotes flow；The grid entry point voltage in power station is less than or equal to the power station
During default voltage control limit, flow is quoted according to the optimal power generation and controls the generating in the power station to quote；In power station
Grid entry point voltage when being more than the default voltage control limit in the power station, then correct the optimal power generation and quote flow,
Quoting flow according to revised optimal power generation controls the generating in the power station to quote.Region power station scheduling of the present invention
Control method, it can be on the one hand boundary condition using minimum ecological water demand, ensure that the ecology required for the upstream and downstream of power station
Water, the ecological influence to power station upstream and downstream is reduced, has on the other hand taken into account the voltage condition of small hydropower station grid entry point,
In the range of the reasonable receiving of grid entry point voltage, the utilization ratio in power station was not only improved but also had ensured the safe and stable operation of power network.
Referring to Fig. 2, it is a kind of region power station of the invention second embodiment flow chart of dispatch control method.At this
In second embodiment of invention, above-mentioned S120 can include following S210-S220.
S210：The generated energy for obtaining each power station in present period is calculated according to the generating parameter；
The embodiment of the present invention, it can be calculated with this according to power station N generating parameter using electric network swim in present period t
Interior power station N generated energy.
In a preferred embodiment of the invention, referring to Fig. 3, the S210 can include following S310-S320：
S310：Read the power factor in each power station of dispatcher-controlled territory；
Reading power station N power factor, power station N power factor is generally a determination value, in the embodiment of the present invention,
The power factor can be stored in device management server, be read to access.
S320：The generated energy in each power station in present period is calculated using default generated energy formula；
The duration of the generating parameter of power station N power factor and power station N, and present period t is substituted into default hair
Electricity formula, so as to obtain the generated energy of the power station N in present period t.
The default generated energy formula mathematic(al) representation is：ENt=ANQNthNtts, wherein, ENtFor present period t water power
Stand N generated energy, ANFor power station N power factor, QNtFlow, h are quoted for generatings of the power station N in present period tNtFor water
Power station N is in present period t generating average water head, tsFor present period t duration.
S220：It is excellent that the generating parameter, the duration of the present period and the generated energy are substituted into default energy-conservation
Change scheduling model, the optimal power generation reference flow for obtaining each power station is calculated using genetic algorithm；
To consider the efficiency of power station regulation, by the object function of the energy saving optimizing scheduling model in the embodiment of the present invention
It is set to hydropower station amount maximum.I.e. described energy saving optimizing scheduling model quotes flow as control variable to generate electricity, with dispatch area
Domain hydropower station amount is up to object function.
Meanwhile in order to take into account power station upstream and downstream environment water volume, the constraints of the energy saving optimizing scheduling model includes：
1st, power station storage capacity is between the present period t maximum storage capacities allowed and minimum storage capacity；
2nd, the generating in power station quotes flow in the maximum allowable flow of the present period t hydraulic turbines and power station downstream most
Between small ecological flow；
3rd, power station is between the minimum load and EIAJ that present period t output allows in the power station；
4th, the storage capacity of subsequent period adds storage capacity variable quantity equal to present period t storage capacity, when the storage capacity variable quantity is current
Section t reservoirs reservoir inflow is with the difference for quoting flow that generates electricity multiplied by the product of the duration of the present period t.
The mathematic(al) representation of the energy saving optimizing scheduling model is：
Constraints
Wherein, vtmin、vtmaxMinimum storage capacity, the maximum storage capacity that respectively N storage capacity in power station is allowed in present period t；
qNmaxFor the maximum allowable flow of the power station N hydraulic turbine, qNminFor the minimum ecological discharge in power station N downstreams；WNmin、WNmax
Minimum load, the EIAJ of respectively power station N permissions；ENt/tsFor power station N present period t average output；vt、
vt+1Respectively power station N is in present period t storage capacity, the storage capacity of subsequent period；qrtReservoir for present period t power station N enters
Storehouse flow.
, can be by the power station N storage capacity in the present period t minimum storage capacity allowed and maximum in the embodiment of the present invention
The maximum allowable flow of the hydraulic turbine and minimum ecological discharge, the power station N in power station N downstreams of storage capacity, the power station N
The minimum load and EIAJ of permission are stored in device management server, are obtained by way of access equipment management server
, in addition, it can also be obtained by way of user inputs immediately.
The embodiment of the present invention can obtain the present period t water power by the flow sensor being arranged in the N of power station
Stand N reservoir reservoir inflow, and storage capacity, the water of the power station N in present period t are obtained using storage capacity detection means
Power station N also or by way of user inputs obtains the reservoir of the present period t power stations N in the storage capacity of subsequent period
Reservoir inflow, the power station N are in present period t storage capacity and the power station N in the storage capacity of subsequent period, art technology
Personnel can also be obtained by other means, and the embodiment of the present invention is not limited.
Referring to Fig. 4, it is a kind of region power station of the invention the 4th embodiment flow chart of dispatch control method.At this
In 4th embodiment of invention methods described, above-mentioned S140, following S410-S440 can be included, wherein, in above-mentioned S140
Correct the optimal power generation and quote flow, including following S410-S430.
S410：The optimal power generation is reduced according to preset ratio and quotes flow, amendment generating is obtained and quotes flow；
The preset ratio can be 5%~10% in embodiments of the present invention, i.e., reduced according to 5%~10% ratio
The optimal power generation quotes flow, and it is to correct to generate electricity to quote flow that the optimal power generation after reduction, which quotes flow,.For example, optimal hair
It is 100m that electricity, which quotes flow,3/ s, it is 90~95m that the optimal power generation after reduction, which quotes flow,3/ s, therefore, amendment, which generates electricity, quotes flow
For 90~95m3/s.Specifically, in implementation process, the concrete numerical value of the preset ratio can be by way of user inputs
It is determined that.
S420：If the amendment generates electricity, reference flow is less than or equal to default downstream minimum ecological discharge, by described in
Downstream minimum ecological discharge is determined as that revised optimal power generation quotes flow；
Judge that the amendment generates electricity and quote whether flow is less than or equal to default downstream minimum ecological discharge, if described repair
The positive reference flow that generates electricity is less than or equal to default downstream minimum ecological discharge, if then illustrating that power station N invents according to amendment
It is excessive to quote the storage capacity that Flow-rate adjustment easily causes power station N upstreams to be intercepted, so as to influence the ecological water in power station N downstreams
Amount.Now, to ensure power station N downstream ecology waters, the downstream minimum ecological discharge is determined as in the embodiment of the present invention
Revised optimal power generation quotes flow, so as to control the generating in the power station to quote using downstream minimum ecological discharge,
Ensure the ecological benefits in power station downstream.
S430：If the amendment generates electricity, reference flow is more than default downstream minimum ecological discharge, and the amendment is sent out
Electricity, which is quoted, is determined as that revised optimal power generation quotes flow.
If the amendment generates electricity, reference flow is more than default downstream minimum ecological discharge, illustrates that power station N generates electricity
The water in Shi Liuxiang downstreams has been able to the ecological requirements for meeting power station N downstreams, now in order to ensure generating efficiency as far as possible
Power station N utilization ratio is improved, the amendment generating reference is determined as that revised optimal power generation is drawn by the embodiment of the present invention
With flow, it is engaged in generate electricity to quote according to the amendment controlling the power station to be quoted in the generating of subsequent period.
S440：Quoting flow according to revised optimal power generation controls the generating in the power station to quote.
As shown in figure 5, it is a kind of region power station of the invention the 5th embodiment flow chart of dispatch control method.At this
In 5th embodiment of invention methods described, it can further include following S510 after S130 or S140.
S510：If present period is not last period of dispatching cycle, continue to obtain subsequent period dispatcher-controlled territory
The generating parameter in each power station, the generating in each power station of scheduling controlling subsequent period is quoted to be terminated until dispatching cycle.
The embodiment of the present invention will be divided into T period dispatching cycle, if present period t is not last of dispatching cycle
Period, then illustrate to also need to further be scheduled dispatcher-controlled territory in subsequent period.At the end of subsequent period, this is at present
One period was present period t by iteration, repeated above example step, you can it is each to continue acquisition subsequent period dispatcher-controlled territory
The generating parameter in individual power station, the generating in each power station of scheduling controlling subsequent period is quoted to be terminated until dispatching cycle.
If present period t is last period of dispatching cycle, illustrate the tune for being directed to each power station in dispatcher-controlled territory
Degree has been completed, and terminates scheduling.
It should be noted that for foregoing each method embodiment, in order to which simplicity describes, it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to
According to the present invention, some steps can use other orders or carry out simultaneously.
According to the method for the invention described above, the present invention also provides region power station dispatching control device, below in conjunction with the accompanying drawings
And preferred embodiment illustrates to the power transmission and transformation equipment state overhauling time detection device of the present invention.
Fig. 6 is refer to, Fig. 6 is structural representation of the device of the present invention in one embodiment.As shown in fig. 6, should
Device in embodiment includes：
First read module 610, for reading the generating parameter in each power station of present period dispatcher-controlled territory, wherein, institute
Stating generating parameter includes generate electricity reference flow, generating average water head and grid entry point voltage；
Optimal quote solves module 620, for the duration according to present period and each power station of the dispatcher-controlled territory
Generating parameter, utilize default energy saving optimizing scheduling model, solve and obtain the optimal power generation in present period each power station and quote
Flow；
First control module 630, it is default to be less than or equal to the power station for the grid entry point voltage in power station
During voltage control limit, flow is quoted according to the optimal power generation and controls the generating in the power station to quote；
Second control module 640, it is more than for the grid entry point voltage in power station and electricity is preset corresponding to the power station
When pressing control limit, correct the optimal power generation and quote flow, quoting flow according to revised optimal power generation controls the water power
The generating stood is quoted.
The embodiment of each module is referring to embodiment of the method above, and here is omitted.
The generating that the present invention reads each power station of present period dispatcher-controlled territory by the first read module 610 first is joined
Number；Then module 620 is solved according to the duration of present period and each power station of the dispatcher-controlled territory using optimal quote
Generating parameter, using default energy saving optimizing scheduling model, solve the optimal power generation reference stream for obtaining each power station of present period
Amount；The grid entry point voltage of first control module 630 in power station is less than or equal to the default voltage control limit in the power station
During value, flow is quoted according to the optimal power generation and controls the generating in the power station to quote；Meanwhile second control module 640 in water
When the grid entry point voltage in power station is more than the default voltage control limit in the power station, then the optimal power generation reference stream is corrected
Amount, flow is quoted according to revised optimal power generation and controls the generating in the power station to quote.Region power station of the present invention
Dispatching control device, can be on the one hand boundary condition using minimum ecological water demand, required for ensure that power station upstream and downstream
Environment water volume, the ecological influence to power station upstream and downstream is reduced, has on the other hand taken into account the voltage of small hydropower station grid entry point
Situation, in the range of the reasonable receiving of grid entry point voltage, the utilization ratio in power station was not only improved but also had ensured the safety and stability of power network
Operation.
As shown in fig. 7, the present invention device in the second embodiment, it is described it is optimal quote solve module 620 can be with
Including following generated energy computing module 710 and optimal reference computing module 720：
Generated energy computing module 710, each power station in present period is obtained for being calculated according to the generating parameter
Generated energy；
Optimal reference computing module 720, for by the generating parameter, the duration of the present period and the generating
Amount substitutes into default energy saving optimizing scheduling model, and the optimal power generation reference flow for obtaining each power station is calculated using genetic algorithm；
Wherein, the energy saving optimizing scheduling model quotes flow as control variable to generate electricity, and is generated electricity with region small hydropower system
Amount is up to object function, and constraints includes：The maximum storage capacity and minimum storehouse that power station storage capacity is allowed in present period
Between appearance, power station generating quote flow in the maximum allowable flow of the present period hydraulic turbine and the most your pupil in power station downstream
Between state flow, power station between the minimum load and EIAJ that the output of present period allows in the power station and under
The storage capacity of one period adds storage capacity variable quantity equal to present period storage capacity, and the storage capacity variable quantity is present period reservoir reservoir inflow
With the difference for quoting flow that generates electricity multiplied by the product of the duration of the present period.
Preferably, the generated energy computing module 710, specifically can be used for：
Read the power factor in each power station of dispatcher-controlled territory；It is calculated using default generated energy formula in present period
The generated energy in interior each power station, the default generated energy formula mathematic(al) representation are：ENt=ANQNthNtts, wherein, ENtTo work as
Preceding period t power station N generated energy, ANFor power station N power factor, QNtDraw for power station N in present period t generating
With flow, hNtIt is power station N in present period t generating average water head, tsFor present period t duration.
As shown in figure 8, second control module 640, it can wrap in device of the invention In yet another embodiment
Include：
Correcting module 810, flow is quoted for reducing the optimal power generation according to preset ratio, obtain amendment generating and quote
Flow；
First determination module 820, it is less than or equal to default downstream most your pupil for quoting flow in the amendment generating
During state flow, the downstream minimum ecological discharge is determined as that revised optimal power generation quotes flow；
Second determination module 830, it is more than default downstream minimum ecological discharge for quoting flow in the amendment generating
When, the amendment generating reference is determined as that revised optimal power generation quotes flow.
Optimal control module 840, the generating in the power station is controlled to draw for quoting flow according to revised optimal power generation
With.
As shown in figure 9, in device of the invention in last one embodiment, region power station scheduling controlling dress
Put, can also include：
Loop control module 810, for when present period is not last period of dispatching cycle, by subsequent period
First read module 610, optimal quote is called to solve module 620, first control module as present period
630 and second control module 640.
The device embodiment of the present invention is corresponding with method, and the specific implementation of each module is referring to side in device embodiment
Method is embodiment, and here is omitted.
Above-mentioned zone power station dispatching control device can perform the region power station scheduling control that the embodiment of the present invention is provided
Method processed, possess the corresponding functional module of execution method and beneficial effect.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, application-specific and design constraint depending on technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. region power station dispatch control method, it is characterised in that comprise the following steps：
The generating parameter in each power station of present period dispatcher-controlled territory is read, wherein, the generating parameter includes generating reference stream
Amount, generating average water head and grid entry point voltage；
According to the duration of present period and the generating parameter in each power station of the dispatcher-controlled territory, default energy saving optimizing is utilized
Scheduling model, solve the optimal power generation reference flow for obtaining each power station of present period；
If the grid entry point voltage in power station is less than or equal to predeterminated voltage control limit corresponding to the power station, according to institute
Stating optimal power generation reference flow controls the generating in the power station to quote；
If the grid entry point voltage in power station is more than predeterminated voltage control limit corresponding to the power station, correct described optimal
Generate electricity and quote flow, quoting flow according to revised optimal power generation controls the generating in the power station to quote.
2. region power station according to claim 1 dispatch control method, it is characterised in that described according to present period
Duration and the generating parameter in each power station of the dispatcher-controlled territory, using default energy saving optimizing scheduling model, solve and obtain
The optimal power generation in each power station is quoted the step of flow, including：
The generated energy for obtaining each power station in present period is calculated according to the generating parameter；
The generating parameter, the duration of the present period and the generated energy are substituted into default energy saving optimizing scheduling mould
Type, calculated using genetic algorithm and obtain the optimal power generation in each power station and quote flow, wherein, the energy saving optimizing scheduling model with
Generate electricity and quote flow as control variable, object function is up to region small hydropower system generated energy, and constraints includes：Water power
Stand storage capacity between the maximum storage capacity and minimum storage capacity that present period is allowed, the generating in power station quote flow in present period
Between the maximum allowable flow of the hydraulic turbine and the minimum ecological discharge in power station downstream, power station present period output at this
Between minimum load and EIAJ that power station allows and the storage capacity of subsequent period adds storage capacity equal to present period storage capacity
Variable quantity, the storage capacity variable quantity are that present period reservoir reservoir inflow quotes the difference of flow multiplied by described current with the generating
The product of the duration of period.
3. region power station according to claim 2 dispatch control method, it is characterised in that described to be joined according to described generate electricity
Number calculates the generated energy for obtaining each power station in present period, including：
Read the power factor in each power station of dispatcher-controlled territory；
The generated energy in each power station in present period is calculated using default generated energy formula, the default generated energy is public
Formula mathematic(al) representation is：ENt=ANQNthNtts, wherein, ENtFor the power station N of present period generated energy, ANFor power station N's
Power factor, QNtFor power station N flow, h are quoted in the generating of present periodNtIt is averaged for power station N in the generating of present period
Head, tsFor the duration of present period.
4. region power station according to claim 1 dispatch control method, it is characterised in that the amendment optimal hair
Electricity quotes flow, including：
The optimal power generation is reduced according to preset ratio and quotes flow, amendment generating is obtained and quotes flow；
If the amendment generates electricity, reference flow is less than or equal to default downstream minimum ecological discharge, by the downstream most your pupil
State flow is determined as that revised optimal power generation quotes flow；
If the amendment generates electricity, reference flow is more than default downstream minimum ecological discharge, and the amendment is generated electricity and quotes flow
It is determined as that revised optimal power generation quotes flow.
5. region power station according to claim 1 dispatch control method, it is characterised in that described according to described optimal
The reference flow that generates electricity controls the generating in the power station to quote or quote flow according to revised optimal power generation and controls the water power
After the generating stood is quoted, in addition to：
If present period is not last period of dispatching cycle, continue to obtain each power station of subsequent period dispatcher-controlled territory
Generating parameter, the generating in each power station of scheduling controlling subsequent period is quoted to be terminated until dispatching cycle.
6. region power station dispatching control device, it is characterised in that including following module：
First read module, for reading the generating parameter in each power station of present period dispatcher-controlled territory, wherein, the ginseng that generates electricity
Number, which includes generating electricity, quotes flow, generating average water head and grid entry point voltage；
Optimal quote solves module, and the generating for the duration according to present period and each power station of the dispatcher-controlled territory is joined
Number, using default energy saving optimizing scheduling model, solve the optimal power generation reference flow for obtaining each power station of present period；
First control module, it is less than or equal to the default voltage control in the power station for the grid entry point voltage in power station
During limit value, flow is quoted according to the optimal power generation and controls the generating in the power station to quote；
Second control module, it is more than predeterminated voltage control limit corresponding to the power station for the grid entry point voltage in power station
During value, correct the optimal power generation and quote flow, the generating in the power station is controlled according to revised optimal power generation reference flow
Quote.
7. region power station according to claim 6 dispatching control device, it is characterised in that optimal quote solves mould
Block is included with lower module：
Generated energy computing module, the generating in each power station in present period is obtained for being calculated according to the generating parameter
Amount；
Optimal reference computing module, for the generating parameter, the duration of the present period and the generated energy to be substituted into
Default energy saving optimizing scheduling model, the optimal power generation reference flow for obtaining each power station is calculated using genetic algorithm, wherein, institute
State energy saving optimizing scheduling model and quote flow as control variable to generate electricity, target letter is up to region small hydropower system generated energy
Number, and constraints includes：Power station storage capacity is between the maximum storage capacity and minimum storage capacity that present period is allowed, power station
Generate electricity and quote flow between the maximum allowable flow of the present period hydraulic turbine and the minimum ecological discharge in power station downstream, water power
Stand between the minimum load and EIAJ that the output in present period allows in the power station and the storage capacity of subsequent period etc.
Storage capacity variable quantity is added in present period storage capacity, the storage capacity variable quantity is that present period reservoir reservoir inflow is quoted with described generate electricity
The difference of flow multiplied by the duration of the present period product.
8. region power station according to claim 7 dispatching control device, it is characterised in that the generated energy calculates mould
Block, it is specifically used for：
Read the power factor in each power station of dispatcher-controlled territory；It is calculated using default generated energy formula in present period respectively
The generated energy in individual power station, the default generated energy formula mathematic(al) representation are：ENt=ANQNthNtts, wherein, ENtFor it is current when
The power station N of section generated energy, ANFor power station N power factor, QNtFor power station N present period generating reference stream
Amount, hNtIt is power station N in the generating average water head of present period, tsFor the duration of present period.
9. region power station according to claim 6 dispatching control device, it is characterised in that second control module,
Including following module：
Correcting module, flow is quoted for reducing the optimal power generation according to preset ratio, obtain amendment generating and quote flow；
First determination module, it is less than or equal to default downstream minimum ecological discharge for quoting flow in the amendment generating
When, the downstream minimum ecological discharge is determined as that revised optimal power generation quotes flow；
Second determination module, for it is described amendment generate electricity quote flow be more than default downstream minimum ecological discharge when, by institute
State amendment generating reference flow and be determined as that revised optimal power generation quotes flow.
10. region power station according to claim 6 dispatching control device, it is characterised in that also include：
Loop control module, for when present period is not last period of dispatching cycle, using subsequent period as working as
The first read module, optimal quote solve module, first control module and second control described in segment call when preceding
Molding block.
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| CN102043905B (en) * | 2010-12-23 | 2014-06-04 | 广东电网公司江门供电局 | Intelligent optimization peak load shifting scheduling method based on self-adaptive algorithm for small hydropower system |
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