CN108429287A - A kind of honourable power slide control and system based on mixed energy storage system - Google Patents
A kind of honourable power slide control and system based on mixed energy storage system Download PDFInfo
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- CN108429287A CN108429287A CN201810305539.6A CN201810305539A CN108429287A CN 108429287 A CN108429287 A CN 108429287A CN 201810305539 A CN201810305539 A CN 201810305539A CN 108429287 A CN108429287 A CN 108429287A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims abstract description 39
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Classifications
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- H02J3/383—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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- 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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H02J3/386—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of honourable power slide control and system based on mixed energy storage system.This method includes：Obtain the honourable output power at current time；The scene output power includes wind power output power and photovoltaic output power；The high frequency power of the honourable output power at current time is calculated using weighted moving average algorithm according to the honourable output power at current time；The high frequency power is stabilized by super capacitor；The low frequency power of the honourable output power at current time is calculated using low-pass filtering algorithm according to the honourable output power at current time；The low frequency power is stabilized by accumulator.The present invention takes full advantage of the advantage that storage battery energy density is big and super capacitor power density is big, to stabilize the power swing of different frequency scope, reduces the fluctuation of honourable power, it is made to meet grid-connected requirement.
Description
Technical field
The present invention relates to wind light generation fields, more particularly to a kind of honourable power smooth control based on mixed energy storage system
Method and system processed.
Background technology
Honourable output power has very strong randomness, fluctuation, although wind, light output have under multiple time scales
There is certain natural complementarity, the two synthesis output, which can be offset long-term and short term power in a part, to be fluctuated, but one
In a shorter controlling cycle, stationarity still is difficult to be guaranteed, thus when the two is synthesized and exported, need to coordinate energy storage system
It unites rational control strategy, so that wind-light storage synthesis output power meets the grid-connected requirement under its power smooth pattern.
Invention content
The object of the present invention is to provide a kind of honourable power slide control and system based on mixed energy storage system, subtract
The fluctuation of small scene power, makes it meet grid-connected requirement.
To achieve the above object, the present invention provides following schemes：
A kind of honourable power slide control based on mixed energy storage system, the method includes：
Obtain the honourable output power at current time；The scene output power includes wind power output power and photovoltaic output
Power；
According to the honourable output power at current time, using weighted moving average algorithm, the scene for calculating current time is defeated
Go out the high frequency power of power；
The high frequency power is stabilized by super capacitor；
The honourable output work at current time is calculated using low-pass filtering algorithm according to the honourable output power at current time
The low frequency power of rate；
The low frequency power is stabilized by accumulator.
Optionally, described that the high frequency power is stabilized by super capacitor, it specifically includes：
Obtain the honourable output power of historical juncture；
According to the honourable output power of historical juncture, using weighted moving average algorithm, the scene for calculating the historical juncture is defeated
The high frequency power for going out power obtains history high frequency power；
The charge and discharge command value of super capacitor is calculated according to the honourable output power of historical juncture and history high frequency power；
The high frequency power of the honourable power at current time is adjusted by the charge and discharge command value of the super capacitor.
Optionally, the charge and discharge command value by the super capacitor adjusts the high frequency of the honourable power at current time
Power specifically includes：
The charge and discharge command value of the super capacitor is corrected using FUZZY ALGORITHMS FOR CONTROL；
The high frequency power of the honourable power at current time is adjusted by the charge and discharge command value of revised super capacitor.
Optionally, described that the low frequency power is stabilized by accumulator, it specifically includes：
The honourable output work of historical juncture is calculated using low-pass filtering algorithm according to the honourable output power of historical juncture
The low frequency power of rate obtains history low frequency power；
According to the charge and discharge command value of the honourable output power of historical juncture and history low frequency power calculating accumulator；
The high frequency power of the honourable power at current time is adjusted by the charge and discharge command value of the accumulator.
Optionally, the charge and discharge command value by the accumulator adjusts the high frequency work(of the honourable power at current time
Rate specifically includes：
The charge and discharge command value of the accumulator is corrected using FUZZY ALGORITHMS FOR CONTROL；
The low frequency power of the honourable power at current time is adjusted by the charge and discharge command value of the revised accumulator.
The present invention also provides a kind of honourable power smooth control system based on mixed energy storage system, the system packet
It includes：
Acquisition module, the honourable output power for obtaining current time；The scene output power includes wind-powered electricity generation output
Power and photovoltaic output power；
First computing module is calculated for the honourable output power according to current time using weighted moving average algorithm
The high frequency power of the honourable output power at current time；
First stabilizes module, is stabilized to the high frequency power for passing through super capacitor；
Second computing module is calculated current for the honourable output power according to current time using low-pass filtering algorithm
The low frequency power of the honourable output power at moment；
Second stabilizes module, is stabilized to the low frequency power for passing through accumulator.
Optionally, described first stabilizes module and includes：
First acquisition unit, the honourable output power for obtaining the historical juncture；
First computing unit is calculated for the honourable output power according to the historical juncture using weighted moving average algorithm
The high frequency power of the honourable output power of historical juncture, obtains history high frequency power；
Second computing unit, for calculating super electricity according to the honourable output power and history high frequency power of historical juncture
The charge and discharge command value of appearance；
The first adjustment unit, the honourable power for adjusting current time by the charge and discharge command value of the super capacitor
High frequency power.
Optionally, the first adjustment unit includes：
First revise subelemen, the charge and discharge command value for correcting the super capacitor using FUZZY ALGORITHMS FOR CONTROL；
The first adjustment subelement, for adjusting current time by the charge and discharge command value of the revised super capacitor
Honourable power high frequency power.
Optionally, described second stabilizes module and includes：
Third computing unit calculates history for the honourable output power according to the historical juncture using low-pass filtering algorithm
The low frequency power of the honourable output power at moment, obtains history low frequency power；
4th computing unit, for the honourable output power and history low frequency power calculating accumulator according to the historical juncture
Charge and discharge command value；
Second adjustment unit is used to adjust the honourable power at current time by the charge and discharge command value of the accumulator
High frequency power.
Optionally, the second adjustment unit includes：
Second repaiies subelement, the charge and discharge command value for correcting the accumulator using FUZZY ALGORITHMS FOR CONTROL；
Second adjustment subelement, when for adjusting current by the charge and discharge command value of the revised accumulator
The low frequency power of the honourable power at quarter.
Compared with prior art, the present invention has the following technical effects：The present invention is solved using weighted moving average algorithm
The fluctuation of the power of upper frequency, this Partial Power is stabilized by super capacitor；It is solved compared with low frequency using low-pass filtering algorithm
The fluctuation of the power of rate, this Partial Power is stabilized by accumulator.It is big and super to take full advantage of storage battery energy density
The big advantage of Capacitance Power density reduces the fluctuation of honourable power to stabilize the power swing of different frequency scope, keeps it full
The grid-connected requirement of foot.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of step of the honourable power slide control based on mixed energy storage system provided in an embodiment of the present invention
Rapid flow chart；
Fig. 2 is a kind of knot of the honourable power smooth control system based on mixed energy storage system provided in an embodiment of the present invention
Structure block diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of honourable power slide control and system based on mixed energy storage system, subtract
The fluctuation of small scene power, makes it meet grid-connected requirement.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, a kind of honourable power slide control based on mixed energy storage system includes the following steps：
Step 101：Obtain the honourable output power at current time；It is described scene output power include wind power output power and
Photovoltaic output power.
Step 102：Current time is calculated using weighted moving average algorithm according to the honourable output power at current time
Honourable output power high frequency power.
Step 103：The high frequency power is stabilized by super capacitor.
Specifically, obtaining the honourable output power of historical juncture；
According to the honourable output power of historical juncture, using weighted moving average algorithm, the scene for calculating the historical juncture is defeated
The high frequency power for going out power obtains history high frequency power；
The charge and discharge command value of super capacitor is calculated according to the honourable output power of historical juncture and history high frequency power；
The charge and discharge command value of the super capacitor is corrected using FUZZY ALGORITHMS FOR CONTROL；
The high frequency power of the honourable power at current time is adjusted by the charge and discharge command value of revised super capacitor.
Rolling average algorithm basic principle is：Using the method elapsed backward item by item, using time series data as foundation, meter
The average value for calculating one group of recent measured data, in this, as the predicted value of future time instance, reflection data development and change become for a long time
Gesture.When by cyclic swing and random fluctuation interference, the data of time series will appear compared with macrorelief, it is more difficult to show data
Development trend.Using rolling average algorithm, the interference of these fluctuations can be largely reduced, and then shows data
Trendline.
The input of fuzzy controller has 2：First input is super capacitor output intensity, and the second input is filled for super capacitor
State-of-charge after electric discharge exports the power command value correction factor for super capacitor.
Step 104：The wind at current time is calculated using low-pass filtering algorithm according to the honourable output power at current time
The low frequency power of optical output power.
Step 105：The low frequency power is stabilized by accumulator.
Specifically, according to the honourable output power of historical juncture, using low-pass filtering algorithm, the scene of historical juncture is calculated
The low frequency power of output power obtains history low frequency power；
According to the charge and discharge command value of the honourable output power of historical juncture and history low frequency power calculating accumulator；
The charge and discharge command value of the accumulator is corrected using FUZZY ALGORITHMS FOR CONTROL；
The low frequency power of the honourable power at current time is adjusted by the charge and discharge command value of the revised accumulator.
The input of fuzzy controller has 2：First input is the output intensity of accumulator, and the second input is filling for accumulator
State-of-charge after electric discharge exports the power command value correction factor for accumulator.
According to above-mentioned specific embodiment provided by the invention, the invention discloses following technique effects：The present invention, which uses, to be added
The power that rolling average algorithm solves upper frequency is weighed, the fluctuation of this Partial Power is stabilized by super capacitor；Using low pass
Filtering algorithm solves the power of lower frequency, and the fluctuation of this Partial Power is stabilized by accumulator.Take full advantage of accumulator
The advantage that energy density is big and super capacitor power density is big reduces wind to stabilize the power swing of different frequency scope
The fluctuation of luminous power makes it meet grid-connected requirement.
In addition, as shown in Fig. 2, the present invention also provides a kind of, the honourable power smooth control based on mixed energy storage system is
System.The system comprises：
Acquisition module 201, the honourable output power for obtaining current time；The scene output power includes that wind-powered electricity generation is defeated
Go out power and photovoltaic output power.
First computing module 202, for according to the honourable output power at current time, using weighted moving average algorithm,
Calculate the high frequency power of the honourable output power at current time.
First stabilizes module 203, is stabilized to the high frequency power for passing through super capacitor.
First, which stabilizes module 203, specifically includes：
First acquisition unit, the honourable output power for obtaining the historical juncture；
First computing unit is calculated for the honourable output power according to the historical juncture using weighted moving average algorithm
The high frequency power of the honourable output power of historical juncture, obtains history high frequency power；
Second computing unit, for calculating super electricity according to the honourable output power and history high frequency power of historical juncture
The charge and discharge command value of appearance；
The first adjustment unit, the honourable power for adjusting current time by the charge and discharge command value of the super capacitor
High frequency power.
The first adjustment unit includes：
First revise subelemen, the charge and discharge command value for correcting the super capacitor using FUZZY ALGORITHMS FOR CONTROL；
The first adjustment subelement, for adjusting current time by the charge and discharge command value of the revised super capacitor
Honourable power high frequency power.
Second computing module 204 is calculated for the honourable output power according to current time using low-pass filtering algorithm
The low frequency power of the honourable output power at current time.
Second stabilizes module 205, is stabilized to the low frequency power for passing through accumulator.
Described second, which stabilizes module 205, specifically includes：
Third computing unit calculates history for the honourable output power according to the historical juncture using low-pass filtering algorithm
The low frequency power of the honourable output power at moment, obtains history low frequency power；
4th computing unit, for the honourable output power and history low frequency power calculating accumulator according to the historical juncture
Charge and discharge command value；
Second adjustment unit is used to adjust the honourable power at current time by the charge and discharge command value of the accumulator
High frequency power.
The second adjustment unit includes：
Second repaiies subelement, the charge and discharge command value for correcting the accumulator using FUZZY ALGORITHMS FOR CONTROL；
Second adjustment subelement, when for adjusting current by the charge and discharge command value of the revised accumulator
The low frequency power of the honourable power at quarter
The fluctuation that honourable power can be reduced by above system makes it meet grid-connected requirement.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For system disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is said referring to method part
It is bright.
Principle and implementation of the present invention are described for specific case used herein, and above example is said
The bright method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of honourable power slide control based on mixed energy storage system, which is characterized in that the method includes：
Obtain the honourable output power at current time；The scene output power includes wind power output power and photovoltaic output work
Rate；
The honourable output work at current time is calculated using weighted moving average algorithm according to the honourable output power at current time
The high frequency power of rate；
The high frequency power is stabilized by super capacitor；
The honourable output power at current time is calculated using low-pass filtering algorithm according to the honourable output power at current time
Low frequency power；
The low frequency power is stabilized by accumulator.
2. control method according to claim 1, which is characterized in that it is described by super capacitor to the high frequency power into
Row is stabilized, and is specifically included：
Obtain the honourable output power of historical juncture；
The honourable output work of historical juncture is calculated using weighted moving average algorithm according to the honourable output power of historical juncture
The high frequency power of rate obtains history high frequency power；
The charge and discharge command value of super capacitor is calculated according to the honourable output power of historical juncture and history high frequency power；
The high frequency power of the honourable power at current time is adjusted by the charge and discharge command value of the super capacitor.
3. control method according to claim 2, which is characterized in that the charge and discharge by the super capacitor instruct
The high frequency power of the honourable power at value adjustment current time, specifically includes：
The charge and discharge command value of the super capacitor is corrected using FUZZY ALGORITHMS FOR CONTROL；
The high frequency power of the honourable power at current time is adjusted by the charge and discharge command value of revised super capacitor.
4. control method according to claim 2, which is characterized in that described to be carried out to the low frequency power by accumulator
It stabilizes, specifically includes：
The honourable output power of historical juncture is calculated using low-pass filtering algorithm according to the honourable output power of historical juncture
Low frequency power obtains history low frequency power；
According to the charge and discharge command value of the honourable output power of historical juncture and history low frequency power calculating accumulator；
The high frequency power of the honourable power at current time is adjusted by the charge and discharge command value of the accumulator.
5. control method according to claim 4, which is characterized in that the charge and discharge command value by the accumulator
The high frequency power for adjusting the honourable power at current time, specifically includes：
The charge and discharge command value of the accumulator is corrected using FUZZY ALGORITHMS FOR CONTROL；
The low frequency power of the honourable power at current time is adjusted by the charge and discharge command value of the revised accumulator.
6. a kind of honourable power smooth control system based on mixed energy storage system, which is characterized in that the system comprises：
Acquisition module, the honourable output power for obtaining current time；The scene output power includes wind power output power
With photovoltaic output power；
First computing module is calculated current for the honourable output power according to current time using weighted moving average algorithm
The high frequency power of the honourable output power at moment；
First stabilizes module, is stabilized to the high frequency power for passing through super capacitor；
Second computing module calculates current time for the honourable output power according to current time using low-pass filtering algorithm
Honourable output power low frequency power；
Second stabilizes module, is stabilized to the low frequency power for passing through accumulator.
7. control system according to claim 6, which is characterized in that described first, which stabilizes module, includes：
First acquisition unit, the honourable output power for obtaining the historical juncture；
First computing unit calculates history for the honourable output power according to the historical juncture using weighted moving average algorithm
The high frequency power of the honourable output power at moment, obtains history high frequency power；
Second computing unit, for calculating super capacitor according to the honourable output power and history high frequency power of historical juncture
Charge and discharge command value；
The first adjustment unit, the height of the honourable power for adjusting current time by the charge and discharge command value of the super capacitor
Frequency power.
8. control system according to claim 7, which is characterized in that the first adjustment unit includes：
First revise subelemen, the charge and discharge command value for correcting the super capacitor using FUZZY ALGORITHMS FOR CONTROL；
The first adjustment subelement, the wind for adjusting current time by the charge and discharge command value of the revised super capacitor
The high frequency power of luminous power.
9. control system according to claim 7, which is characterized in that described second, which stabilizes module, includes：
Third computing unit calculates the historical juncture for the honourable output power according to the historical juncture using low-pass filtering algorithm
Honourable output power low frequency power, obtain history low frequency power；
4th computing unit, for according to the honourable output power of historical juncture and filling for history low frequency power calculating accumulator
Electric discharge command value；
Second adjustment unit, the high frequency of the honourable power for adjusting current time by the charge and discharge command value of the accumulator
Power.
10. control system according to claim 9, which is characterized in that the second adjustment unit includes：
Second repaiies subelement, the charge and discharge command value for correcting the accumulator using FUZZY ALGORITHMS FOR CONTROL；
Second adjustment subelement, for adjusting current time by the charge and discharge command value of the revised accumulator
The low frequency power of honourable power.
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| CN113659615B (en) * | 2021-07-07 | 2023-07-18 | 双登集团股份有限公司 | Renewable energy source fluctuation control method for wind-solar hydrogen storage AC-DC system |
| CN114865676A (en) * | 2022-07-07 | 2022-08-05 | 中国长江三峡集团有限公司 | Hybrid energy storage system control method and device and electronic equipment |
| JP7407894B1 (en) | 2022-07-07 | 2024-01-04 | 中国長江三峡集団有限公司 | Control method, device and electronic equipment for hybrid energy storage system |
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