CN108847664A - A kind of micro-capacitance sensor generating equipment automatic start-stop recombination operation method - Google Patents
A kind of micro-capacitance sensor generating equipment automatic start-stop recombination operation method Download PDFInfo
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- 230000006798 recombination Effects 0.000 title claims abstract description 91
- 238000005215 recombination Methods 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000012544 monitoring process Methods 0.000 claims abstract description 38
- 238000013178 mathematical model Methods 0.000 claims abstract description 26
- 238000005457 optimization Methods 0.000 claims abstract description 21
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 15
- 230000001360 synchronised effect Effects 0.000 claims description 34
- 230000005611 electricity Effects 0.000 claims description 30
- 238000004146 energy storage Methods 0.000 claims description 22
- 238000010248 power generation Methods 0.000 claims description 12
- 230000009194 climbing Effects 0.000 claims description 9
- 101000911390 Homo sapiens Coagulation factor VIII Proteins 0.000 claims description 6
- 102000057593 human F8 Human genes 0.000 claims description 6
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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
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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
- H02J3/381—Dispersed generators
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- H02J3/382—
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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]
Abstract
A kind of micro-capacitance sensor generating equipment automatic start-stop recombination operation method, applied to the energy management center of micro-capacitance sensor, the micro-capacitance sensor generating equipment automatic start-stop recombination operation method includes the following steps：Obtain system monitoring information；According to system monitoring information, status assessment is carried out respectively, to determine system call amount；According to system monitoring information and system call amount, establishes and mathematical model is recombinated with the equipment start-stop of the minimum objective function of system operation cost；According to system constraints, equipment start-stop recombination optimal case is calculated using MIXED INTEGER linear optimization algorithm to equipment start-stop recombination mathematical model.Above-mentioned micro-capacitance sensor generating equipment automatic start-stop recombinates operation method, and according to system constraints, recombination optimal case is calculated using MIXED INTEGER linear optimization algorithm to equipment start-stop recombination mathematical model；It so, it is possible to obtain optimal recombination operating scheme under energy management Optimized Operation, realize that carrying out start and stop to the power equipment in system recombinates combined schedule.
Description
Technical field
The present invention relates to technical field of electric power, recombinate operation side more particularly to a kind of micro-capacitance sensor generating equipment automatic start-stop
Method.
Background technique
With the fast development of novel intelligent power grid, to a large amount of new energy equipments, the synchronous generator etc. in power grid
Automatic start-stop recombination operation of the electrical equipment in intelligent micro-grid and power distribution network is also paid more and more attention.By recombination operation come
It realizes energy management and coordinated control to micro-capacitance sensor, makes full use of distributed generation resource, improve micro-capacitance sensor performance driving economy, improve
Voltage and Frequency Index, guarantee power supply reliability and power quality etc. all have important theory and reality when micro-capacitance sensor isolated operation
With value.
However, the recombination of intelligent micro-grid is run, higher skill is proposed to the synthetic operation of control system and equipment room
Art requirement.In addition, in intelligent micro-grid Unit Commitment recombination operation method in systems it is integrated apply urgent need to resolve.Cause
This, there is an urgent need to obtain optimal unit under energy management Optimized Operation and open from the efficient operation of entire intelligent micro-grid
Stop recombinating operating scheme, realization carries out recombination combining and scheduling to whole system generating equipment.
Summary of the invention
Based on this, it is necessary to provide a kind of micro-capacitance sensor generating equipment automatic start-stop recombination operation based on mixed integer optimization
Method.
A kind of micro-capacitance sensor generating equipment automatic start-stop recombination operation method, applied to the energy management center of micro-capacitance sensor, institute
Micro-capacitance sensor generating equipment automatic start-stop recombination operation method is stated to include the following steps：
Obtain system monitoring information；
According to system monitoring information, status assessment is carried out respectively, to determine system call amount；
According to system monitoring information and system call amount, foundation is opened with the equipment of the minimum objective function of system operation cost
Stop recombinating mathematical model；
According to system constraints, equipment is calculated using MIXED INTEGER linear optimization algorithm to recombination mathematical model and is opened
Stop recombinating optimal case.
In one of the embodiments, described according to system constraints, described according to system constraints, to setting
After equipment start-stop recombination optimal case is calculated using MIXED INTEGER linear optimization algorithm in standby start and stop recombination mathematical model, institute
It states micro-capacitance sensor and realizes that automatic recombination operation method further includes：
Execute the equipment start-stop recombination optimal case, that is, optimal case is recombinated according to equipment start-stop, is executed related dynamic
Make.
In one of the embodiments, after the execution equipment start-stop recombination optimal case, the micro-capacitance sensor hair
It further includes following steps that electric equipment automatic start-stop, which recombinates operation method,：
Record executes the operation result and runing time of the equipment start-stop recombination optimal case.
The system monitoring information includes the operating status and active electric power filter of generator unit in one of the embodiments,
The operating status of wave device.
The operating status of the generator unit includes the operating status of generation of electricity by new energy unit in one of the embodiments,
With the operating status of synchronous generator.
In one of the embodiments, start and stop recombination electric device include generation of electricity by new energy unit, APF unit with it is synchronous
Generator.For another example, generation of electricity by new energy unit is converter generator unit.
The system call amount includes in one of the embodiments,：The scheduling quantum of converter generator unit, synchronous generator
Scheduling quantum, scheduling quantum, the scheduling quantum with the energy exchange of external electrical network of energy-storage units power generation output of machine unit.
The system constraints include in one of the embodiments,：Harmonic wave constrains in power grid；Recombinate count constraint；
Generated energy Constraints of Equilibrium；It is constrained with external electrical network energy exchange；Generated energy constraint；The constraint of climbing rate；Energy-storage system charge and discharge limit
System；Generator rotor angle limitation.
The system constraints include in one of the embodiments,：(1) harmonic wave constrains in power grid；(2) start and stop adjust
Count constraint；(3) generated energy Constraints of Equilibrium；(4) it is constrained with external electrical network energy exchange；(5) generated energy constrains；(6) climbing rate
Constraint；(7) energy-storage system charge and discharge limit；(8) generator rotor angle limits.For another example, start and stop adjustment count constraint is also recombination count constraint.
Harmonic wave constraint is specially in the power grid in one of the embodiments,：
Wherein, GΦ,iIt is the specified compensation capacity of Active Power Filter-APF unit i,Hold for the harmonic compensation at node b
The maximum value of amount, the selection set B of node b is according to system real-time detection or prediction result, by harmonic content H in power gridbIt is more than
Rated valueSpecific node composition.
Above-mentioned micro-capacitance sensor generating equipment automatic start-stop recombinates operation method, applied to the energy management center of micro-capacitance sensor, leads to
Cross real-time acquisition system monitoring information；State estimation is carried out according to system monitoring information, to determine system call amount；According to system
Monitoring information and system call amount are established and recombinate mathematical model with the equipment start-stop of the minimum objective function of system operation cost；
According to system constraints, equipment is calculated using MIXED INTEGER linear optimization algorithm to equipment start-stop recombination mathematical model and is opened
Stop reorganization scheme；It so, it is possible to obtain optimal device start and stop recombination operating scheme under energy management Optimized Operation, realize to whole
A system carries out start and stop recombination scheduling.
Detailed description of the invention
Fig. 1 is that the step of micro-capacitance sensor generating equipment automatic start-stop of one embodiment of the invention recombinates operation method is schemed；
Fig. 2 is that the step of micro-capacitance sensor generating equipment automatic start-stop of another embodiment of the present invention recombinates operation method is schemed.
Specific embodiment
To facilitate the understanding of the present invention, in order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, under
In conjunction with attached drawing, specific embodiments of the present invention will be described in detail in face.It is explained in the following description many details
To facilitate a thorough understanding of the present invention, giving better embodiment of the invention in attached drawing.But the present invention can be with many not
With form realize, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making
It makes the present disclosure more fully understandable.The present invention can be to be much different from other way described herein
Implement, those skilled in the art can make similar improvements without departing from the spirit of the invention, therefore the present invention not by
The limitation of following public specific embodiment.In addition, term " first ", " second " are used for description purposes only, and should not be understood as
Indication or suggestion relative importance or the quantity for implicitly indicating indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In the description of the present invention, the meaning of " plurality " is
At least two, such as two, three etc., unless otherwise specifically defined.In the description of the present invention, the meaning of " several "
It is at least one, such as one, two etc., unless otherwise specifically defined.It should be noted that when element is referred to as
" being fixed on " another element, it can directly on the other element or there may also be elements placed in the middle.When a member
Part is considered as " connection " another element, it can be directly to another element or may be simultaneously present member placed in the middle
Part.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement simply to illustrate that mesh
, it is not meant to be the only embodiment.Unless otherwise defined, all technical and scientific terms used herein and category
It is identical in the normally understood meaning of those skilled in the art of the invention.Term used herein is intended merely to describe
The purpose of specific embodiment, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of a relevant listed item.
For example, a kind of micro-capacitance sensor generating equipment automatic start-stop recombinates operation method, applied in the energy management of micro-capacitance sensor
The heart, the micro-capacitance sensor generating equipment automatic start-stop recombination operation method include the following steps：Obtain system monitoring information；According to being
System monitoring information, carries out status assessment, respectively to determine system call amount；According to system monitoring information and system call amount, build
The vertical equipment start-stop with the minimum objective function of system operation cost recombinates mathematical model；According to system constraints, to equipment
Equipment start-stop recombination optimal case is calculated using MIXED INTEGER linear optimization algorithm in start and stop recombination mathematical model.For another example, micro-
It is that micro-capacitance sensor recombinates operation method that grid generation equipment automatic start-stop, which recombinates operation method,.For another example, micro-capacitance sensor generating equipment is automatic
Start and stop recombination operation method is that micro-capacitance sensor recombinates operation method automatically.For another example, micro-capacitance sensor generating equipment is the electric power of start and stop recombination
Device, for another example, micro-capacitance sensor generating equipment include generation of electricity by new energy unit, APF unit and synchronous generator.For another example, new energy is sent out
Electric unit is converter generator unit.
Operation method is recombinated in order to further illustrate above-mentioned micro-capacitance sensor generating equipment automatic start-stop, another example is to ask
Refering to fig. 1, a kind of micro-capacitance sensor generating equipment automatic start-stop recombinates operation method, applied to the energy management center of micro-capacitance sensor, institute
Micro-capacitance sensor generating equipment automatic start-stop recombination operation method is stated to include the following steps：
S100：Obtain system monitoring information；
For example, the system monitoring information includes the operating status of generator unit and the operation of Active Power Filter-APF unit
State.For another example, the operating status of the generator unit includes the operating status of generation of electricity by new energy unit and the fortune of synchronous generator
Row state.For another example, the system monitoring information includes the operation shape of the operating status of each generation of electricity by new energy unit, synchronous generator
The operating status of state and Active Power Filter-APF unit.For example, the operation shape of the generation of electricity by new energy unit and synchronous generator
State includes power generation mode and shutdown mode.For example, the APF (Active power filter, Active Power Filter-APF) is single
The operating status of member includes APF operational mode and shutdown mode.For another example, the system is micro-grid system.For another example, the system
For micro-capacitance sensor.For another example, the electric device of the start and stop recombination in micro-capacitance sensor includes generation of electricity by new energy unit, APF unit and synchronous hair
Motor.
It should be noted that the micro-capacitance sensor have energy management center, the energy management center by communication network with
The equipment such as generation of electricity by new energy unit, synchronous generator, load are interconnected, and the energy scheduling system at energy management center passes through excellent
Change scheduling and variation is adjusted to the start and stop combination of the equipment such as generation of electricity by new energy unit, synchronous generator, APF, makes in micro-capacitance sensor
Power equipment according to real-time operating conditions carry out automatic start-stop recombination operation.
S200：According to system monitoring information, status assessment is carried out, to determine system call amount.
In the present embodiment, status assessment is carried out according to system monitoring information, to determine system call amount.
For example, according to the operating status of each generation of electricity by new energy unit, the state of synchronous generator come to following (Δ t time)
State assessed, so that it is determined that system call amount.For example, the system call amount includes：The tune of generation of electricity by new energy unit
Measurement, the scheduling quantum of the scheduling quantum of synchronous generator unit, energy-storage units power generation output, the tune with the energy exchange of external electrical network
Measurement.For example, the system call amount includes：The scheduling quantum of generation of electricity by new energy unit, the scheduling quantum of synchronous generator, energy storage list
Scheduling quantum, the scheduling quantum with the energy exchange of external electrical network of member power generation output.
It should be noted that how to obtain system monitoring information, and how according to system monitoring information, shape is carried out respectively
State assessment, to determine system call amount, please refers to the prior art, to realize in the energy management center of micro-capacitance sensor.
S300：According to system monitoring information and system call amount, establish with the minimum objective function of system operation cost
Equipment start-stop recombinates mathematical model；
For example, recombinating mathematics with the foundation of the minimum objective function of system operation cost equipment start-stop relevant to moment t
Model is specially：
Wherein, xΦ、xsgIt is integer decision variable.xΦIt is the start and stop decision variable of APF unit, xsgIt is generation of electricity by new energy list
The start and stop decision variable of member and synchronous generator unit.Scheduling quantum Psg、Psto、PchIt is continuous decision variable, in each calculating
Generation of electricity by new energy unit and synchronous generator unit, energy-storage units power generation output and external electrical are related generally under time interval Δ t
The energy exchange etc. of net.
C in objective functionΦThe cost coefficient that APF unit carries out start and stop recombination, C are controlled for systemsgIt is that system control is new
Energy generator unit and synchronous generator unit carry out the cost coefficient of start and stop recombination.Csgp、Csto、CehIt is system respectively to new energy
Source generator unit and synchronous generator unit, energy-storage units, the expense with the be scheduled control of energy exchange of external electrical network
Coefficient, i.e. CsgpIt is the cost coefficient that system is scheduled control to generation of electricity by new energy unit and synchronous generator unit, CstoIt is
The cost coefficient of system control be scheduled to energy-storage units, CehIt is that system pair and the energy exchange of external electrical network are adjusted
Spend the cost coefficient of control.The formed collection of APF unit i is combined into i ∈ I, generation of electricity by new energy unit and synchronous generator in the system
The collection of machine unit j is combined into j ∈ J, and collection composed by electric switch e is combined into E in system, collection composed by energy-storage units k in system
It is combined into K.
It so, it is possible preferably to establish and mathematical modulo recombinated with the equipment start-stop of the minimum objective function of system operation cost
Type.
S400：According to system constraints, start and stop recombination mathematical model is calculated using MIXED INTEGER linear optimization algorithm
Obtain recombination optimal case.
In one embodiment, the system constraints include：(1) harmonic wave constrains in power grid；(2) recombination adjusts number about
Beam；(3) generated energy Constraints of Equilibrium；(4) it is constrained with external electrical network energy exchange；(5) generated energy constrains；(6) climbing rate constrains；
(7) energy-storage system charge and discharge limit；(8) generator rotor angle limits.In this way, by above-mentioned multiple system constraints, it can be to recombination number
It learns model and recombination optimal case is calculated using MIXED INTEGER linear optimization algorithm, recombination group is carried out to whole system to realize
It closes and dispatches.For another example, recombination adjustment count constraint is also start and stop adjustment count constraint.
Harmonic wave constraint is specially in the power grid in one of the embodiments,：
Wherein, GΦ,iIt is specified compensation capacity of the Active Power Filter-APF unit in node i,For the harmonic wave at node b
The maximum value of compensation capacity, the selection set B of node b is by harmonic content H in power gridbOverrateParticular node group
At.
The start and stop adjustment count constraint is Active Power Filter-APF (APF) unit and hair in one of the embodiments,
Electric unit carries out the count constraint of automatic start-stop recombination, and for another example, the APF unit and power plant unit carry out automatic start-stop weight
Group count constraint be specially：
Wherein, NΦ,iIt is start and stop adjustment number of the Active Power Filter-APF unit in node i,It is active power filtering
Device unit adjusts number in the maximum start and stop of node i.Nsg,jIt is start and stop adjustment time of the Active Power Filter-APF unit in node j
Number,It is that maximum start and stop of the Active Power Filter-APF unit in node j adjust number.
Generated energy Constraints of Equilibrium includes the generated energy P of all generator units in one of the embodiments,sg(t), energy storage list
The total power generation P of membersto(t), P is exchanged with the electricity of outer netch(t) and load total power consumption Pσ(t).Wherein, all generator units
Generated energy Psg(t), the total power generation P of energy-storage unitssto(t), P is exchanged with the electricity of outer netch(t) and load total power consumption Pσ
(t) equilibrium of supply and demand is maintained, the generated energy Constraints of Equilibrium is specially：
In one of the embodiments, with external electrical network energy exchange Pch(t) minimum operation limit is maintainedWith
Maximum operation limitWithin, it is described to be specially with external electrical network energy exchange constraint：
The generated energy P of generator unit in one of the embodiments,sg(t) minimum operation limit is maintainedMost
Big operation limitWithin, the generated energy constraint is specially：
In one of the embodiments, generator unit generated energy variation climbing rate γ to maintain certain limit it
Interior, the climbing rate constraint is specially：
Energy-storage units energy input/output will limit in a certain range in micro-capacitance sensor in one of the embodiments, storage
Energy system charge and discharge are limited to：
The transimission power of each route l and generator rotor angle difference θ in one of the embodiments,lIt will in a certain range, in micro-capacitance sensor
The collection of route is combined into L, and the generator rotor angle is limited to：
Above-mentioned micro-capacitance sensor generating equipment automatic start-stop recombinates operation method, applied to the energy management center of micro-capacitance sensor, leads to
Cross real-time acquisition system monitoring information；According to system monitoring information, status assessment is carried out respectively, to determine system call amount；Root
According to system monitoring information and system call amount, establishes and mathematics is recombinated with the equipment start-stop of the minimum objective function of system operation cost
Model；According to system constraints, equipment start-stop recombination mathematical model is calculated using MIXED INTEGER linear optimization algorithm
Equipment start-stop recombinates optimal case；It so, it is possible to obtain optimal device start and stop recombination operation side under energy management Optimized Operation
Case realizes that carrying out equipment start-stop to whole system recombinates combining and scheduling.In addition, above-mentioned micro-capacitance sensor generating equipment automatic start-stop weight
Group operation method, can be mono- to converter generator unit, synchronous generator unit, the electrical equipment such as APF in micro-grid system
The operating mode and operating status of member can carry out control adjustment simultaneously, being capable of the coordinated control through overprotection system and control system
Management, establishes optimization aim to start and stop assembled state expense and scheduling expense at energy management center, under various constraint conditions
By mixed integer optimization method to system modelling and solution, the optimal solution of System reorganization operating scheme is obtained and by accordingly referring to
Enable the automatic recombination operation that control is adjusted to converter generator unit, synchronous generator and APF unit to realize system.
In one embodiment, described according to system constraints, described according to system constraints, to equipment start-stop weight
After equipment start-stop recombination optimal case is calculated using MIXED INTEGER linear optimization algorithm in group mathematical model, the micro-capacitance sensor
Realize that automatic recombination operation method further includes：
Execute the equipment start-stop recombination optimal case, that is, optimal case is recombinated according to equipment start-stop, is executed related dynamic
Make.
In one of the embodiments, after the execution equipment start-stop recombination optimal case, the micro-capacitance sensor hair
It further includes following steps that electric equipment automatic start-stop, which recombinates operation method,：
Record executes the operation result and runing time of the equipment start-stop recombination optimal case.
Operation method is recombinated in order to further illustrate micro-capacitance sensor generating equipment automatic start-stop in above-described embodiment, please refers to figure
2, micro-capacitance sensor generating equipment automatic start-stop recombination operation method includes the following steps：
S1:Monitoring information.That is, by the energy management center monitoring information of micro-capacitance sensor.
S2:According to monitoring information, status assessment is carried out, to determine system call amount.
S3:Establish Optimized model and its parameter, that is, according to system monitoring information and system call amount, foundation is transported with system
Row cost minimization is the equipment start-stop recombination mathematical model of objective function, meanwhile, determine the ginseng of equipment start-stop recombination mathematical model
Number.
S4:According to seismic responses calculated optimal solution, that is, according to system constraints, recombinate mathematical model to equipment start-stop
Equipment start-stop recombination optimal case is calculated using MIXED INTEGER linear optimization algorithm.
S5:Operational decisions are verified, i.e. verification relevant action.That is, by the energy management center of micro-capacitance sensor to equipment start-stop weight
Group optimal case is verified and confirmed.
S6：Execute relevant action, that is, the equipment start-stop recombination optimal case is executed, in other words, according to equipment start-stop weight
Group optimal case, executes relevant action.The relevant action is the energy management center of micro-capacitance sensor in one of the embodiments,
Optimal case is recombinated according to equipment start-stop, control is adjusted to APF and generator unit and executes start and stop recombination function.
S7：Record correlated results and correct time.That is, record executes the operation result and runing time of relevant action.
It so, it is possible to recombinate optimal case execution relevant action according to equipment start-stop, and record the fortune for executing relevant action
Row result.It is run to which the equipment start-stop to compare itself and model pre-estimating according to physical device start and stop recombination operation result recombinates
As a result.
Provide specific embodiment again below to further illustrate above-mentioned micro-capacitance sensor generating equipment automatic start-stop recombination operation side
Method.
The technical solutions adopted are as follows for the present embodiment：Energy management center is acquired and is examined in real time to system monitoring information
Rope, and relevant status assessment is carried out to determine the current operating status of system, system call is determined according to condition evaluation results
Amount is established according to system monitoring information and system call amount with the equipment start-stop weight of the minimum objective function of system operation cost
Group mathematical model；According to system constraints, MIXED INTEGER linear optimization algorithm meter is used to equipment start-stop recombination mathematical model
Calculation obtains equipment start-stop recombination optimal case.It is related dynamic by being executed after the optimal case of equipment start-stop recombination operation is calculated
Make and record correct time, that is, executes the equipment start-stop recombination optimal case, it is optimal that record executes the equipment start-stop recombination
The operation result and runing time of scheme.Wherein, micro-capacitance sensor has an energy management center, passes through communication network and new energy
Generator unit, synchronous generator, load equipment such as Active Power Filter-APF unit are interconnected.The scheduling system at energy management center
System controls the equipment such as generation of electricity by new energy unit, synchronous generator and Active Power Filter-APF unit by Optimized Operation,
Multiple electrical equipments open/stop operating status and can adjust variation in system, carry out power grid according to real-time operating conditions
Automatic recombination operation.
With the equipment start-stop recombination mathematical model of the minimum objective function of system operation cost, specific step is as follows for foundation：
It is specific with the foundation of the minimum objective function of system operation cost equipment start-stop mathematical model relevant to moment t
For：
Wherein, xΦ、xsgIt is integer decision variable.xΦIt is the start and stop decision variable of APF unit, xsgIt is generation of electricity by new energy list
The start and stop decision variable of member and synchronous generator.Scheduling quantum Psg、Psto、PchIt is continuous decision variable, in each calculating time
Related generally under interval of delta t generation of electricity by new energy unit and synchronous generator unit, energy-storage units power generation output, with external electrical network
Energy exchange etc..The formed collection of APF unit i shares i ∈ I expression, generation of electricity by new energy unit and synchronous generator unit j in model
Collection be combined into j ∈ J, collection composed by electric switch e is combined into E in system, and collection composed by energy-storage units k is combined into K in system.Institute
The collection for stating APF unit i in system is combined into I, and the collection of generation of electricity by new energy unit and conventional electric generators unit j are combined into j ∈ J, in system
The collection of electric switch e is combined into E, and the collection of energy-storage units k is combined into K in system.
C in objective functionΦThe cost coefficient that APF unit carries out start and stop recombination, C are controlled for systemsgIt is that system control is new
Energy generator unit and synchronous generator carry out the cost coefficient of start and stop recombination.Csgp、Csto、CehIt is system respectively to new energy
Generator unit and synchronous generator unit, energy-storage units, the energy exchange with external electrical network, the expense system of be scheduled control
Number.
System constraints include one, binomial or multinomial in as described below：
(1) in power grid harmonic content constraint, harmonic content in system and need to control in a certain range in node u
It is interior, GΦ,iIt is the specified compensation capacity of Active Power Filter-APF unit i,For at node b set harmonic compensation capacity most
Big value, node b is by harmonic content H in power gridbOverrateNode composition.
(2) count constraint is recombinated, the recombination adjustment number of generator unit j and APF unit i within a certain period of time will be certain
In range.
(3) generated energy Constraints of Equilibrium, the total power generation P of various generator units in micro-capacitance sensorsg(t), total hair of energy-storage units
Electricity Psto(t), P is exchanged with the electricity of outer netch(t) and load total power consumption Pσ(t) equilibrium of supply and demand, the generated energy to be maintained
Constraints of Equilibrium is specially：
(4) it is constrained with external electrical network energy exchange, the energy exchange of micro-capacitance sensor and external electrical network will be in reasonable certain model
In enclosing, energy exchange Pch(t) minimum operation limit is maintainedLimit is run with maximumWithin, described and external electrical
Network energy exchange, which constrains, is specially：
(5) generated energy constrains, inside micro-capacitance sensor the generated energy of generator unit will in a certain range, the generator unit
Generated energy Psg(t) minimum operation limit is maintainedLimit is run with maximumBetween.
(6) climbing rate γ is constrained, and the generated energy climbing rate γ of generator unit will be maintained within certain limit, the climbing
Rate constrains：
(7) energy-storage system charge and discharge limit, and energy-storage units energy input/output will be limited in a certain range in micro-capacitance sensor
It is interior.
(8) generator rotor angle limits, the generator rotor angle difference θ of each route l transmission electricitylWill in a certain range, the collection of route in micro-capacitance sensor
It is combined into L.
Microgrid energy administrative center carries out status assessment by real time monitoring, to system, determines each in Optimized model
The decision variable recombinated in each time interval Δ t is iterated to calculate after a parameter；Within each iterative calculation period, energy management
Center is by communication network to the generating equipment and APF progress start and stop recombination adjustment in system.
The present embodiment establishes a kind of micro-capacitance sensor automatic start-stop recombination operation method, realizes generating equipment in micro-capacitance sensor with this
The energy management of automatic start-stop recombination operation, can be to electrical equipments such as generation of electricity by new energy unit, synchronous generators in system
Working condition can carry out control adjustment simultaneously, start and stop assembled state expense and scheduling expense are established at energy management center excellent
Change target, System reorganization operation is obtained to system modelling and solution by mixed integer optimization method under various constraint conditions
The optimal solution of scheme is simultaneously adjusted control to generation of electricity by new energy unit, synchronous generator and APF by command adapted thereto to realize
The automatic start-stop of system recombinates operation.
Above-mentioned micro-capacitance sensor generating equipment automatic start-stop recombinates operation method, applied to the energy management center of micro-capacitance sensor, leads to
Cross real-time acquisition system monitoring information；Status assessment is carried out respectively according to system monitoring information, to determine system call amount；According to
System monitoring information and system call amount are established with the recombination mathematical model of the minimum objective function of system operation cost；According to
Recombination optimal case is calculated using MIXED INTEGER linear optimization algorithm to recombination mathematical model in system constraints；In this way,
Can obtain optimal recombination operating scheme under energy management Optimized Operation, realize to whole system carry out start and stop recombination combination and
Energy management.In addition, above-mentioned micro-capacitance sensor generating equipment automatic start-stop recombinates operation method, it can be to the new energy in micro-grid system
Source generator unit, synchronous generator, APF the working condition that opens/stop be adjusted, at energy management center to start and stop assembled state
Expense and scheduling expense establish optimization aim, to system modelling and are asked under various constraint conditions by mixed integer optimization method
Solution obtains the optimal solution of system start and stop recombination operating scheme and to being that energy generator unit, synchronous generator are adjusted control
To realize the automatic start-stop recombination operation of system.
Each technical characteristic of embodiment described above can carry out arbitrary start and stop combination, for simplicity of description, not to upper
It states all possible start and stop combination of each technical characteristic in embodiment to be all described, as long as however, these technical characteristics
Contradiction is not present in start and stop combination, all should be considered as described in this specification.It should be noted that " the reality of the application
Apply in example ", " such as ", " for another example " etc., it is intended to the application is illustrated, rather than for limiting the application.The above institute
Stating embodiment, only several embodiments of the present invention are expressed, and the description thereof is more specific and detailed, but can not therefore understand
For the limitation to patent of invention range.It should be pointed out that for those of ordinary skill in the art, not departing from this hair
Under the premise of bright design, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.Therefore, this hair
The scope of protection shall be subject to the appended claims for bright patent.
Claims (8)
1. a kind of micro-capacitance sensor generating equipment automatic start-stop recombinates operation method, special applied to the energy management center of micro-capacitance sensor
Sign is that the micro-capacitance sensor generating equipment automatic start-stop recombination operation method includes the following steps：
Obtain system monitoring information；
According to system monitoring information, status assessment is carried out respectively, to determine system call amount；
According to system monitoring information and system call amount, establish with the equipment start-stop weight of the minimum objective function of system operation cost
Group mathematical model；
According to system constraints, equipment start-stop recombination mathematical model is calculated using MIXED INTEGER linear optimization algorithm and is set
Standby start and stop recombinate optimal case.
2. micro-capacitance sensor generating equipment automatic start-stop according to claim 1 recombinates operation method, which is characterized in that described
According to system constraints, equipment is calculated using MIXED INTEGER linear optimization algorithm to equipment start-stop recombination mathematical model and is opened
Stop after recombinating optimal case, the micro-capacitance sensor realizes that automatic recombination operation method further includes：
Execute the equipment start-stop recombination optimal case.
3. micro-capacitance sensor generating equipment automatic start-stop according to claim 2 recombinates operation method, which is characterized in that described to hold
After row equipment start-stop recombination optimal case, the micro-capacitance sensor generating equipment automatic start-stop recombination operation method further include as
Lower step：
Record executes the operation result and runing time of the equipment start-stop recombination optimal case.
4. micro-capacitance sensor generating equipment automatic start-stop according to claim 1 recombinates operation method, which is characterized in that the system
Monitoring information of uniting includes the operating status of generator unit and the operating status of Active Power Filter-APF unit.
5. micro-capacitance sensor generating equipment automatic start-stop according to claim 4 recombinates operation method, which is characterized in that power generation is single
The operating status of member includes power generation mode and shutdown mode, and the operating status of Active Power Filter-APF unit includes active electric power filter
Wave device operational mode and shutdown mode.
6. micro-capacitance sensor generating equipment automatic start-stop according to claim 1 recombinates operation method, which is characterized in that the system
System scheduling quantum include：The scheduling quantum of generation of electricity by new energy unit, the scheduling quantum of synchronous generator unit, energy-storage units power generation export
Scheduling quantum, the scheduling quantum with the energy exchange of external electrical network.
7. micro-capacitance sensor generating equipment automatic start-stop according to claim 1 recombinates operation method, which is characterized in that the system
System constraint condition include：Harmonic wave constrains in power grid；Start and stop adjust count constraint；Generated energy Constraints of Equilibrium；With external electrical network energy
Exchange constraint；Generated energy constraint；The constraint of climbing rate；Energy-storage system charge and discharge limitation；Generator rotor angle limitation.
8. micro-capacitance sensor generating equipment automatic start-stop according to claim 7 recombinates operation method, which is characterized in that the electricity
Harmonic wave, which constrains, in net is specially：
Wherein, GΦ,iIt is specified compensation capacity of the Active Power Filter-APF unit in node i,For the harmonic compensation at node b
The maximum value of capacity, the collection of node b are combined into B, and the node b is by harmonic content H in power gridbOverrateNode group
At.
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Effective date of registration: 20200921 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |