CN106849191A - A kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm - Google Patents
A kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm Download PDFInfo
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- 239000013598 vector Substances 0.000 claims description 23
- 238000004146 energy storage Methods 0.000 claims description 12
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000012216 screening Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc 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
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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Abstract
A kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm provided in an embodiment of the present invention, calculating is optimized to the voltage of micro-capacitance sensor, electric current and power by particle cluster algorithm, it is capable of achieving new energy 100% grid-connected, the generating advantage of distributed power source has been given full play to, the utilization rate of clean energy resource has been improve；It is capable of achieving family's microgrid and purely resistive is presented to civil power, eliminate the harmonic pollution of generation of electricity by new energy and power electronic equipment to civil power, improves power factor；Family's microgrid timesharing invariable power is capable of achieving, the difficulty of higher level's dispatching of power netwoks is reduced, the stable operation ability of higher level's power network is improved；Solving utilization of new energy resources rate deficiency and micro-capacitance sensor will impact to higher level's power network, have a strong impact on the technical problem of the electric energy equilibrium of supply and demand and the quality of power supply.The embodiment of the present invention also provides a kind of alternating current-direct current wired home microgrid running gear based on particle cluster algorithm.
Description
Technical field
It is micro- the present invention relates to family's micro-capacitance sensor field, more particularly to a kind of alternating current-direct current wired home based on particle cluster algorithm
Network operation method.
Background technology
Current energy and environment problem is increasingly highlighted, and development utilization regenerative resource has turned into common recognition.And new energy is big
Power development will be impacted to civil power, and its intermittent and unpredictability has a strong impact on the electric energy equilibrium of supply and demand and the quality of power supply.Pass
System power system operating mode is that generating end follows user terminal to adjust generated energy, it is difficult to tackle the extensive access of intermittent energy source.Electricity
Net is to ensure the safe operation of itself, takes generation of electricity by new energy the mode of strict limitation, causes the reality of current new energy simultaneously
Net rate is less than 20%.
Additionally, traditional power system operating mode cannot make micro-capacitance sensor that purely resistive and timesharing invariable power be presented to higher level's power network, and
And shortage is to the dispatching of specific electrical equipment, it is impossible to actively play " load of quality of power supply insensitive " this kind of valuable " money
Adjustment effect of the source " to the electric energy equilibrium of supply and demand.Therefore under this scheduling mode, if access a large amount of generated energy by force become at random
The new energy of change, it will polluted to power network, reduces electric network reliability.
It is existing alternating current-direct current mixing microgrid structure chart with reference to Fig. 1.It includes that commercial power interface, isolated island switch, exchange are female
Line, exchange subnet, dc bus, direct current subnet, direct current new energy subnet, bilateral impedance type AC-DC converter module, power association
Same module.
It is traditional microgrid optimizing operation method flow chart with reference to Fig. 2.Traditional operation method is only with operating cost and pollutant
The minimum target for the treatment of cost, it is impossible to realize that micro-capacitance sensor is presented purely resistive and timesharing invariable power and new energy to higher level's power network
100% is grid-connected.Therefore under traditional method of operation, utilization of new energy resources rate is not enough and micro-capacitance sensor will cause punching to higher level's power network
Hit, have a strong impact on the electric energy equilibrium of supply and demand and the quality of power supply, higher level's power network is polluted, reduce electric network reliability.
The content of the invention
A kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm is the embodiment of the invention provides, is used for
Solving utilization of new energy resources rate deficiency and micro-capacitance sensor will impact to higher level's power network, have a strong impact on the electric energy equilibrium of supply and demand and electric energy
The technical problem of quality.
A kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm provided in an embodiment of the present invention, bag
Include：
S1：Voltage, electric current and power data in collection family micro-grid system；
S2：According to the voltage, electric current and power data random initializtion population；
S3：The position of particle in the population as itself history optimum position and is calculated into the fitness of each particle
Value, selects the position of the minimum particle of fitness value as global history optimum position from population；
S4：Speed and position according to default iterative formula more new particle；
S5：Calculate update after each particle fitness value, by the fitness value of each particle after the renewal with
The fitness value of correspondence each particle before renewal is compared, the position of the small particle of selection fitness value replace it is described itself
History optimum position, selects the position of the minimum particle of fitness value to replace in itself history optimum position described in after replacement
The global history optimum position；
S6：Step S4 to S5 is repeated, until the iterations in the iterative formula reaches default greatest iteration
Number of times, obtains the global history optimum position；
S7：Voltage, electric current and the power data control included in vector form according to the global history optimum position
Family's micro-grid system operation.
Preferably, the fitness value for calculating particle is specifically calculated by below equation：
Wherein：Ploss=P1+P2+P3, P1The power attenuation of modulator, P are screened for the quality of power supply2It is bilateral impedance type AC-
The power attenuation of DC converters, P3It is the power attenuation of energy-storage module；LlossIt is the life consumption of energy-storage module；The penalty function grid-connected to ensure new energy 100%；λ2Q2To ensure that what microgrid was externally presented purely resistive penalizes letter
Number；λ3(P*-P)2The penalty function of timesharing invariable power is realized for guarantee；
Wherein：
P1=f1(UAC,i1,i2,...,iN)+f2(UDC,i1,i2,...,iU)
P2=f3(i1,i2,...,iU,i1,i2,...,iV,P1,P2,...,PW,Pstore)
P3=f4(Pstore)
Lloss=f5(Pstore,soc)
Q=f6(uAC,iAC,iAC/DC,i1,i2,...,iM)
UACFor quality of power supply insensitive loads ac bus voltage；UDCFor quality of power supply insensitive load DC is female
Line voltage；uACIt is ac bus voltage, iACIt is ac bus electric current, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；
Soc is storage system modules state-of-charge, P*From the instruction of higher level's power network, i1,i2,...,iNFor the AC type quality of power supply is non-quick
Sense type loads the electric current on 1~N；i1,i2,...,iMFor AC type quality of power supply responsive type loads the electric current on 1~M；i1,
i2,...,iUFor once-through type quality of power supply insensitive loads the electric current on 1~U；i1,i2,...,iVIt is the once-through type quality of power supply
Responsive type loads the electric current on 1~V；Pmax1,Pmax2,...,PmaxWIt is the peak power output of each direct current new energy module, P1,
P2,...,PWIt is the real output of each direct current new energy module.
Preferably, step S1 is specifically included：
AC type quality of power supply insensitive loads the electric current i on 1~N in collection family micro-grid system1,i2,...,
iN；AC type quality of power supply responsive type loads the electric current i on 1~M1,i2,...,iM；Once-through type quality of power supply insensitive is loaded
Electric current i on 1~U1,i2,...,iU；Once-through type quality of power supply responsive type loads the electric current i on 1~V1,i2,...,iV；It is each straight
Flow the peak power output P of new energy modulemax1,Pmax2,...,PmaxWAnd the real output of each direct current new energy module
P1,P2,...,PWIt is assigned to K dimensional input vectors：
Preferably, step S2 is specifically included：
Random initializtion population, sets the initial position and speed of each particle, and the population is by N number of particle group
Into position of each particle in hyperspace is represented as the vector of following form：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is energy-storage module charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current.
Preferably, step S4 is specifically included：
Speed and the position of each particle are updated according to following formula：
Wherein i=1,2 ... N, t are iterationses, and ω is inertial factor, c1,c2It is Studying factors, r1,r2For 0 to 1 it
Between random number.
Preferably, the step S7 includes：
The vector form of the global history optimum position is expressed as：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is storage system modules charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；
By UAC,UDC,Pstore,iAC/DCIt is assigned to corresponding controller so that the controller is according to UAC,UDC,Pstore,
iAC/DCThe microgrid operation of control family, makes microgrid completely grid-connected in new energy, before purely resistive and timesharing invariable power externally is presented
Put power attenuation, the power attenuation of bilateral impedance type AC-DC converter and the storage system for reaching quality of power supply screening modulator
The power attenuation of system is minimum and service life is most long.
A kind of alternating current-direct current wired home microgrid running gear based on particle cluster algorithm provided in an embodiment of the present invention, is based on
A kind of above-mentioned alternating current-direct current wired home microgrid operation method based on particle cluster algorithm is controlled, including：
Data acquisition module, for gathering voltage, electric current and power data in family's micro-grid system；
Population initialization module, for according to the voltage, electric current and power data random initializtion population；
Position and fitness initial calculation module, for the position of particle in the population is optimal as itself history
Position simultaneously calculates the fitness value of each particle, and the position of the minimum particle of fitness value is selected from population as global history
Optimum position；
Iteration update module, for the speed according to default iterative formula more new particle and position；
Position and fitness update computing module, the fitness value for calculating each particle after updating, by described in more
The fitness value of each particle after new is compared with the fitness value of corresponding each particle before renewal, selects fitness value
Itself history optimum position is replaced in the position of small particle, and selection is suitable in itself history optimum position described in after replacement
The position of the minimum particle of angle value is answered to replace the global history optimum position；
Iteration output module, computing module is updated for repeating iteration update module and position and fitness, until
Iterations in the iterative formula reaches default maximum iteration, obtains the global history optimum position；
Control operation module, for the voltage, the electric current that are included in the vector form according to the global history optimum position
With the micro-grid system operation of power data control family.
Preferably, population initialization module specifically for：
Random initializtion population, sets the initial position and speed of each particle, and the population is by N number of particle group
Into position of each particle in hyperspace is represented as the vector of following form：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is energy-storage module charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current.
Preferably, iteration update module specifically for：
Speed and the position of each particle are updated according to following formula：
Wherein i=1,2 ... N, t are iterationses, and ω is inertial factor, c1,c2It is Studying factors, r1,r2For 0 to 1 it
Between random number.
Preferably, control operation module specifically for：
The vector form of the global history optimum position is expressed as：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is storage system modules charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；
By UAC,UDC,Pstore,iAC/DCCorresponding controller is assigned to, makes microgrid completely grid-connected in new energy, be externally presented pure
The power attenuation of quality of power supply screening modulator, bilateral impedance type AC-DC is reached on the premise of resistive and timesharing invariable power to become
The power attenuation of the power attenuation of parallel operation and storage system is minimum and service life is most long.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
A kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm provided in an embodiment of the present invention, passes through
Particle cluster algorithm optimizes calculating to the voltage of micro-capacitance sensor, electric current and power, and it is grid-connected to be capable of achieving new energy 100%, fully hair
The generating advantage of distributed power source has been waved, the utilization rate of clean energy resource has been improve；It is capable of achieving family's microgrid and pure resistance is presented to civil power
Property, the harmonic pollution of generation of electricity by new energy and power electronic equipment to civil power is eliminated, improve power factor；It is capable of achieving family's microgrid point
When invariable power, reduce higher level's dispatching of power netwoks difficulty, improve higher level's power network stable operation ability；Solve utilization of new energy resources rate
Not enough and micro-capacitance sensor will be impacted to higher level's power network, have a strong impact on the technical problem of the electric energy equilibrium of supply and demand and the quality of power supply.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is the alternating current-direct current mixing microgrid structure chart that the embodiment of the present invention is used to explain；
Fig. 2 is traditional microgrid optimizing operation method flow chart that the embodiment of the present invention is used to explain；
Fig. 3 is a kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm provided in an embodiment of the present invention
One embodiment flow chart；
Fig. 4 is a kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm provided in an embodiment of the present invention
A flow chart for application examples.
Specific embodiment
A kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm is the embodiment of the invention provides, is used for
Solving utilization of new energy resources rate deficiency and micro-capacitance sensor will impact to higher level's power network, have a strong impact on the electric energy equilibrium of supply and demand and electric energy
The technical problem of quality.
To enable that goal of the invention of the invention, feature, advantage are more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described, it is clear that disclosed below to the technical scheme in the embodiment of the present invention
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Refer to Fig. 3, a kind of alternating current-direct current wired home microgrid fortune based on particle cluster algorithm provided in an embodiment of the present invention
One embodiment of row method, including：
101：Voltage, electric current and power data in collection family micro-grid system；
102：According to the voltage, electric current and power data random initializtion population；
103：The position of particle in the population as itself history optimum position and is calculated into the fitness of each particle
Value, selects the position of the minimum particle of fitness value as global history optimum position from population；
104：Speed and position according to default iterative formula more new particle；
105：Calculate update after each particle fitness value, by the fitness value of each particle after the renewal with
The fitness value of correspondence each particle before renewal is compared, the position of the small particle of selection fitness value replace it is described itself
History optimum position, selects the position of the minimum particle of fitness value to replace in itself history optimum position described in after replacement
The global history optimum position；
106：Step 104 to 105 is repeated, is changed until the iterations in the iterative formula reaches default maximum
Generation number, obtains the global history optimum position；
107：Voltage, electric current and the power data control included in vector form according to the global history optimum position
Family's micro-grid system operation.
Above is to a kind of alternating current-direct current wired home microgrid operation based on particle cluster algorithm provided in an embodiment of the present invention
One embodiment of method is described in detail, below by provided in an embodiment of the present invention a kind of based on particle cluster algorithm
Another embodiment of alternating current-direct current wired home microgrid operation method is described in detail.
A kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm provided in an embodiment of the present invention it is another
One embodiment includes：
201：AC type quality of power supply insensitive loads the electric current i on 1~N in collection family micro-grid system1,
i2,...,iN；AC type quality of power supply responsive type loads the electric current i on 1~M1,i2,...,iM；The once-through type quality of power supply is non-sensitive
Type loads the electric current i on 1~U1,i2,...,iU；Once-through type quality of power supply responsive type loads the electric current i on 1~V1,i2,...,
iV；The peak power output P of each direct current new energy modulemax1,Pmax2,...,PmaxWAnd the reality of each direct current new energy module is defeated
Go out power P1,P2,...,PWIt is assigned to K dimensional input vectors：
202：Random initializtion population, sets the initial position and speed of each particle, and the population is by N number of particle
Composition, position of each particle in hyperspace is represented as the vector of following form：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is energy-storage module charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current.
203：The position of particle in the population as itself history optimum position and is calculated into the fitness of each particle
Value, selects the position of the minimum particle of fitness value as global history optimum position from population；
204：Speed and the position of each particle are updated according to following formula：
Wherein i=1,2 ... N, t are iterationses, and ω is inertial factor, c1,c2It is Studying factors, r1,r2For 0 to 1 it
Between random number；
205：Calculate update after each particle fitness value, by the fitness value of each particle after the renewal with
The fitness value of correspondence each particle before renewal is compared, the position of the small particle of selection fitness value replace it is described itself
History optimum position, selects the position of the minimum particle of fitness value to replace in itself history optimum position described in after replacement
The global history optimum position；
It should be noted that the replacement in step 205 is divided into two steps.The first step is first by each particle after the renewal
Fitness value be compared with the fitness value of corresponding each particle before updating, i.e., compare two-by-two (just as having in office
Six people, this six people of today and oneself being compared for tomorrow), then selected in the particle of each two contrast and answer angle value small
The position of particle replace itself history optimum position.In second step itself history optimum position described in after replacement
It (is like that fitness value is most in office that the global history optimum position is replaced in the position of the minimum particle of selection fitness value
Small people acts as the leader, and after renewal, the minimum people of fitness value becomes another people, then leader also becomes corresponding people
).
206：Step 204 to 205 is repeated, is changed until the iterations in the iterative formula reaches default maximum
Generation number, obtains the global history optimum position；
207：The vector form of the global history optimum position is expressed as：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is storage system modules charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；
By UAC,UDC,Pstore,iAC/DCCorresponding controller is assigned to, makes microgrid completely grid-connected in new energy, be externally presented pure
The power attenuation of quality of power supply screening modulator, bilateral impedance type AC-DC is reached on the premise of resistive and timesharing invariable power to become
The power attenuation of the power attenuation of parallel operation and storage system is minimum and service life is most long.
The fitness value for calculating particle is specifically calculated by below equation：
Wherein：Ploss=P1+P2+P3, P1The power attenuation of modulator, P are screened for the quality of power supply2It is bilateral impedance type AC-
The power attenuation of DC converters, P3It is the power attenuation of energy-storage module；LlossIt is the life consumption of energy-storage module；
The penalty function grid-connected to ensure new energy 100%；λ2Q2To ensure that microgrid is externally presented the penalty function of purely resistive；λ3(P*-P)2For
The penalty function of timesharing invariable power is realized in guarantee；
Wherein：
P1=f1(UAC,i1,i2,...,iN)+f2(UDC,i1,i2,...,iU)
P2=f3(i1,i2,...,iU,i1,i2,...,iV,P1,P2,...,PW,Pstore)
P3=f4(Pstore)
Lloss=f5(Pstore,soc)
Q=f6(uAC,iAC,iAC/DC,i1,i2,...,iM)
UACFor quality of power supply insensitive loads ac bus voltage；UDCFor quality of power supply insensitive load DC is female
Line voltage；uACIt is ac bus voltage, iACIt is ac bus electric current, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；
Soc is storage system modules state-of-charge, P*From the instruction of higher level's power network, i1,i2,...,iNFor the AC type quality of power supply is non-quick
Sense type loads the electric current on 1~N；i1,i2,...,iMFor AC type quality of power supply responsive type loads the electric current on 1~M；i1,
i2,...,iUFor once-through type quality of power supply insensitive loads the electric current on 1~U；i1,i2,...,iVIt is the once-through type quality of power supply
Responsive type loads the electric current on 1~V；Pmax1,Pmax2,...,PmaxWIt is the peak power output of each direct current new energy module, P1,
P2,...,PWIt is the real output of each direct current new energy module.
Above is to a kind of alternating current-direct current wired home microgrid operation based on particle cluster algorithm provided in an embodiment of the present invention
Another embodiment of method is described in detail, below will be to provided in an embodiment of the present invention a kind of based on particle cluster algorithm
One embodiment of alternating current-direct current wired home microgrid running gear be described in detail.
A kind of alternating current-direct current wired home microgrid running gear based on particle cluster algorithm provided in an embodiment of the present invention, is based on
A kind of above-mentioned alternating current-direct current wired home microgrid operation method based on particle cluster algorithm is controlled, including：
Data acquisition module, for gathering voltage, electric current and power data in family's micro-grid system；
Population initialization module, for according to the voltage, electric current and power data random initializtion population；
Position and fitness initial calculation module, for the position of particle in the population is optimal as itself history
Position simultaneously calculates the fitness value of each particle, and the position of the minimum particle of fitness value is selected from population as global history
Optimum position；
Iteration update module, for the speed according to default iterative formula more new particle and position；
Position and fitness update computing module, the fitness value for calculating each particle after updating, by described in more
The fitness value of each particle after new is compared with the fitness value of corresponding each particle before renewal, selects fitness value
Itself history optimum position is replaced in the position of small particle, and selection is suitable in itself history optimum position described in after replacement
The position of the minimum particle of angle value is answered to replace the global history optimum position；
Iteration output module, computing module is updated for repeating iteration update module and position and fitness, until
Iterations in the iterative formula reaches default maximum iteration, obtains the global history optimum position；
Control operation module, for the voltage, the electric current that are included in the vector form according to the global history optimum position
With the micro-grid system operation of power data control family.
Population initialization module specifically for：
Random initializtion population, sets the initial position and speed of each particle, and the population is by N number of particle group
Into position of each particle in hyperspace is represented as the vector of following form：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is energy-storage module charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current.
Iteration update module specifically for：
Speed and the position of each particle are updated according to following formula：
Wherein i=1,2 ... N, t are iterationses, and ω is inertial factor, c1,c2It is Studying factors, r1,r2For 0 to 1 it
Between random number.
Control operation module specifically for：
The vector form of the global history optimum position is expressed as：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is storage system modules charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；
By UAC,UDC,Pstore,iAC/DCCorresponding controller is assigned to, makes microgrid completely grid-connected in new energy, be externally presented pure
The power attenuation of quality of power supply screening modulator, bilateral impedance type AC-DC is reached on the premise of resistive and timesharing invariable power to become
The power attenuation of the power attenuation of parallel operation and storage system is minimum and service life is most long.
Above is to a kind of alternating current-direct current wired home microgrid operation based on particle cluster algorithm provided in an embodiment of the present invention
One embodiment of device is described in detail, below by provided in an embodiment of the present invention a kind of based on particle cluster algorithm
One application examples of alternating current-direct current wired home microgrid operation method is described in detail.
Refer to Fig. 4, a kind of alternating current-direct current wired home microgrid fortune based on particle cluster algorithm provided in an embodiment of the present invention
One application examples of row method includes：
Step 1：AC type quality of power supply insensitive loads the electric current i on 1~N in collection family micro-grid system1,
i2,...,iN；AC type quality of power supply responsive type loads the electric current i on 1~M1,i2,...,iM；The once-through type quality of power supply is non-sensitive
Type loads the electric current i on 1~U1,i2,...,iU；Once-through type quality of power supply responsive type loads the electric current i on 1~V1,i2,...,
iV；The peak power output P of each direct current new energy modulemax1,Pmax2,...,PmaxWAnd the actual work(of each direct current new energy module
Rate P1,P2,...,PWIt is assigned to K dimensional input vectors：
Step 2：Random initializtion population, sets the initial position and speed of each particle, and the population is by N number of grain
Son composition, position of each particle in hyperspace is represented as the vector of following form.
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is storage system modules charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current.
Step 3：The fitness value of each particle is calculated as follows in population：
Wherein：Ploss=P1+P2+P3, P1The power attenuation of modulator, P are screened for the quality of power supply2It is bilateral impedance type AC-
The power attenuation of DC converters, P3It is the power attenuation of storage system modules；LlossIt is storage system modules life consumption；The penalty function grid-connected for new energy 100% can be ensured；λ2Q2For that can ensure that microgrid is externally presented penalizing for purely resistive
Function；λ3(P*-P)2The penalty function of timesharing invariable power is realized for guarantee.
Wherein：
P1=f1(UAC,i1,i2,...,iN)+f2(UDC,i1,i2,...,iU)
P2=f3(i1,i2,...,iU,i1,i2,...,iV,P1,P2,...,PW,Pstore)
P3=f4(Pstore)
Lloss=f5(Pstore,soc)
Q=f6(uAC,iAC,iAC/DC,i1,i2,...,iM)
UACQuality of power supply insensitive loads ac bus voltage；UDCIt is quality of power supply insensitive load DC bus
Voltage；uACIt is ac bus voltage, iACIt is ac bus electric current, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；soc
It is storage system modules state-of-charge, P*From the instruction of higher level's power network.
Step 4：By the initial position of each particleAs its history optimum positionAnd its fitness value is calculated, then
It is current global optimum's particle that the minimum particle of fitness value is selected from population, and its position is designated as
Step 5：Speed and the position of each particle are updated according to following formula：
Wherein i=1,2 ... N：T is iterations, and ω is inertial factor, c1,c2It is Studying factors, r1,r2For [0,1] it
Between random number；
Step 6：Each particle after updating is calculated using the method for step 3Fitness value, and by its with
Itself history optimum positionWith global history optimum positionCorresponding fitness value compares, if the fitness of current particle
Value is smaller, then replace corresponding with itOr
Step 7：Repeat step 5~6 can obtain global optimum's particle as follows up to reaching maximum iteration：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor the load of quality of power supply insensitive is straight
Stream busbar voltage, PstoreIt is storage system modules charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current.
Step 8：By UAC,UDC,Pstore,iAC/DCCorresponding controller is assigned to, makes microgrid completely grid-connected in new energy, externally
Power attenuation, bilateral impedance type that the quality of power supply screens modulator are reached on the premise of purely resistive and timesharing invariable power is presented
The power attenuation of the power attenuation of AC-DC converter and storage system is minimum and service life is most long.
The present invention utilizes population optimization algorithm, for the alternating current-direct current wired home microgrid based on generation of electricity by new energy,
To the work(of the power attenuation, the power attenuation of bilateral impedance type AC-DC converter and storage system of quality of power supply screening modulator
Rate loss carries out cooperateing with optimization with service life and electrical equipment power consumption situation, so as to realize wired home microgrid new
Efficiency on the premise of the grid-connected and external presentation purely resistive of the energy 100% and timesharing invariable power is maximized, in theory
It is upper to cause that domestic electric network realizes no pollution to higher level's power network.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to preceding
Embodiment is stated to be described in detail the present invention, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. a kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm, it is characterised in that including：
S1：Voltage, electric current and power data in collection family micro-grid system；
S2：According to the voltage, electric current and power data random initializtion population；
S3：The position of particle in the population as itself history optimum position and is calculated into the fitness value of each particle, from
The position of the minimum particle of fitness value is selected in population as global history optimum position；
S4：Speed and position according to default iterative formula more new particle；
S5：The fitness value of each particle after updating is calculated, by the fitness value of each particle after the renewal and renewal
The fitness value of preceding each particle of correspondence is compared, and itself history is replaced in the position of the small particle of selection fitness value
Optimum position, selects the position of the minimum particle of fitness value to replace described in itself history optimum position described in after replacement
Global history optimum position；
S6：Step S4 to S5 is repeated, until the iterations in the iterative formula reaches default maximum iteration,
Obtain the global history optimum position；
S7：Voltage, electric current and the power data control family included in vector form according to the global history optimum position
Micro-grid system runs.
2. a kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm according to claim 1, it is special
Levy and be, the fitness value for calculating particle is specifically calculated by below equation：
Wherein：Ploss=P1+P2+P3, P1The power attenuation of modulator, P are screened for the quality of power supply2For bilateral impedance type AC-DC becomes
The power attenuation of parallel operation, P3It is the power attenuation of energy-storage module；LlossIt is the life consumption of energy-storage module；For
Ensure the grid-connected penalty function of new energy 100%；λ2Q2To ensure that microgrid is externally presented the penalty function of purely resistive；λ3(P*-P)2To protect
Confirm the penalty function of existing timesharing invariable power；
Wherein：
P1=f1(UAC,i1,i2,...,iN)+f2(UDC,i1,i2,...,iU)
P2=f3(i1,i2,...,iU,i1,i2,...,iV,P1,P2,...,PW,Pstore)
P3=f4(Pstore)
Lloss=f5(Pstore,soc)
Q=f6(uAC,iAC,iAC/DC,i1,i2,...,iM)
UACFor quality of power supply insensitive loads ac bus voltage；UDCIt is quality of power supply insensitive load DC bus electricity
Pressure；uACIt is ac bus voltage, iACIt is ac bus electric current, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；Soc is
Storage system modules state-of-charge, P*From the instruction of higher level's power network, i1,i2,...,iNFor AC type quality of power supply insensitive is negative
Carry the electric current on 1~N；i1,i2,...,iMFor AC type quality of power supply responsive type loads the electric current on 1~M；i1,i2,...,iU
For once-through type quality of power supply insensitive loads the electric current on 1~U；i1,i2,...,iVFor once-through type quality of power supply responsive type is negative
Carry the electric current on 1~V；Pmax1,Pmax2,...,PmaxWIt is the peak power output of each direct current new energy module, P1,P2,...,PW
It is the real output of each direct current new energy module.
3. a kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm according to claim 1, it is special
Levy and be, the step S1 is specifically included：
AC type quality of power supply insensitive loads the electric current i on 1~N in collection family micro-grid system1,i2,...,iN；Hand over
Flow pattern quality of power supply responsive type loads the electric current i on 1~M1,i2,...,iM；Once-through type quality of power supply insensitive loads 1~U
On electric current i1,i2,...,iU；Once-through type quality of power supply responsive type loads the electric current i on 1~V1,i2,...,iV；Each direct current is new
The peak power output P of energy modulemax1,Pmax2,...,PmaxWAnd the real output P of each direct current new energy module1,
P2,...,PWIt is assigned to K dimensional input vectors：
4. a kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm according to claim 1, it is special
Levy and be, the step S2 is specifically included：
Random initializtion population, sets the initial position and speed of each particle, and the population is made up of N number of particle, often
Position of the individual particle in hyperspace is represented as the vector of following form：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor quality of power supply insensitive load DC is female
Line voltage, PstoreIt is energy-storage module charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current.
5. a kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm according to claim 1, it is special
Levy and be, the step S4 is specifically included：
Speed and the position of each particle are updated according to following formula：
Wherein i=1,2 ... N, t are iterationses, and ω is inertial factor, c1,c2It is Studying factors, r1,r2For between 0 to 1 with
Machine number.
6. a kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm according to claim 1, it is special
Levy and be, the step S7 is specifically included：
The vector form of the global history optimum position is expressed as：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor quality of power supply insensitive load DC is female
Line voltage, PstoreIt is storage system modules charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；
By UAC,UDC,Pstore,iAC/DCIt is assigned to corresponding controller so that the controller is according to UAC,UDC,Pstore,iAC/DCControl
Family's microgrid operation.
7. a kind of alternating current-direct current wired home microgrid running gear based on particle cluster algorithm, based on any one in claim 1 to 6
A kind of alternating current-direct current wired home microgrid operation method based on particle cluster algorithm described in is controlled, it is characterised in that bag
Include：
Data acquisition module, for gathering voltage, electric current and power data in family's micro-grid system；
Population initialization module, for according to the voltage, electric current and power data random initializtion population；
Position and fitness initial calculation module, for using the position of particle in the population as itself history optimum position
And the fitness value of each particle is calculated, select the position of the minimum particle of fitness value optimal as global history from population
Position；
Iteration update module, for the speed according to default iterative formula more new particle and position；
Position and fitness update computing module, the fitness value for calculating each particle after updating, after the renewal
The fitness value of each particle be compared with the fitness value of corresponding each particle before updating, selection fitness value is small
Itself history optimum position is replaced in the position of particle, and fitness is selected in itself history optimum position described in after replacement
Replace the global history optimum position in the position for being worth minimum particle；
Iteration output module, updates computing module, until described for repeating iteration update module and position and fitness
Iterations in iterative formula reaches default maximum iteration, obtains the global history optimum position；
Control operation module, for the voltage, electric current and the work(that are included in the vector form according to the global history optimum position
The micro-grid system operation of rate data control family.
8. a kind of alternating current-direct current wired home microgrid running gear based on particle cluster algorithm according to claim 7, it is special
Levy and be, the population initialization module specifically for：
Random initializtion population, sets the initial position and speed of each particle, and the population is made up of N number of particle, often
Position of the individual particle in hyperspace is represented as the vector of following form：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor quality of power supply insensitive load DC is female
Line voltage, PstoreIt is energy-storage module charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current.
9. a kind of alternating current-direct current wired home microgrid running gear based on particle cluster algorithm according to claim 7, it is special
Levy and be, the iteration update module specifically for：
Speed and the position of each particle are updated according to following formula：
Wherein i=1,2 ... N, t are iterationses, and ω is inertial factor, c1,c2It is Studying factors, r1,r2For between 0 to 1 with
Machine number.
10. a kind of alternating current-direct current wired home microgrid running gear based on particle cluster algorithm according to claim 7, it is special
Levy and be,
It is described control operation module specifically for：
The vector form of the global history optimum position is expressed as：
Wherein, UACFor quality of power supply insensitive loads ac bus voltage, UDCFor quality of power supply insensitive load DC is female
Line voltage, PstoreIt is storage system modules charge-discharge electric power, iAC/DCIt is bilateral impedance type AC/DC convertor electric current；
By UAC,UDC,Pstore,iAC/DCIt is assigned to corresponding controller so that the controller is according to UAC,UDC,Pstore,iAC/DCControl
Family's microgrid operation.
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