CN106549421B - A kind of water power and photoelectricity multi-objective optimization design of power and control method for coordinating - Google Patents
A kind of water power and photoelectricity multi-objective optimization design of power and control method for coordinating Download PDFInfo
- Publication number
- CN106549421B CN106549421B CN201611050971.2A CN201611050971A CN106549421B CN 106549421 B CN106549421 B CN 106549421B CN 201611050971 A CN201611050971 A CN 201611050971A CN 106549421 B CN106549421 B CN 106549421B
- Authority
- CN
- China
- Prior art keywords
- power
- water
- photovoltaic
- grid
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000005457 optimization Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005622 photoelectricity Effects 0.000 title claims abstract description 12
- 230000000295 complement effect Effects 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 238000010248 power generation Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000029087 digestion Effects 0.000 abstract description 9
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
-
- H02J3/382—
-
- H02J3/383—
-
- 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]
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The water power and photoelectricity control method for coordinating of a kind of suitable dispatching of power netwoks are proposed herein for aqueous electrical-optical electricity association system, this method considers the various limitations of association system operation, establishes the water light complementation Model for Multi-Objective Optimization for considering Hydrologic Information.It is up to objective function with the grid-connected benefit maximum of complementary system and photovoltaic digestion capability, constructs Multiobjective Programming, water power and photoelectric yield power is optimized using multiple target solution.Compared with the existing methods, can be while maximizing photovoltaic digestion capability using this method, angle from operation side effectively improves the benefit of power grid power output, to promote the consumption of renewable energy and the friendly operation of power grid.
Description
Technical field
The present invention relates to a kind of for optimizing the method for water power Yu photoelectric yield power, belongs in new energy power generation technology
Power supply Coordinated Control field.
Background technique
It accesses to cope with large-scale photovoltaic to safe and stable operation of power system bring immense pressure and new challenge,
And the uncertainty of photovoltaic power generation, the operation of photovoltaic plant needs to be equipped with corresponding energy storage device, but also increases volume simultaneously
Outer operating cost, therefore photoelectricity and economic controllable energy source combined operating are increasingly becoming research hotspot.
Photovoltaic plant installed capacity in recent years rapidly develops, and the problem of photovoltaic consumption at the same time is also more prominent, gradually draws
The attention of researcher is played.To 2015, domestic photovoltaic plant installed capacity reached 41,580,000 kilowatts, in most area base
Originally it can reach higher proportion consumption (85%), but dissolve energy in the regional photovoltaic such as the Xinjiang of illumination resource relative abundance, Gansu
Power is still to be improved.It is considered that the area such as Xinjiang, Gansu has more rich hydroelectric resources, by water power and electrical combined fortune
Row, utilizes water for producing electric power and the leveling of the power adjustable energy conservation power of photovoltaic energy storage device and output power, not only can be effective
The fluctuation for reducing photoelectricity power output, makes association system export electric energy smoothly to meet the needs of dispatching of power netwoks, while also can promote
Cleaning and renewable energy it is grid-connected, reduce abandon light quantity, increase grid-connected benefit.
The control method of country's water power and electrical combined power generation and not perfect at present, usually just for individual photovoltaic plant
The optimization of scheduling and power station scheduling, causes solar photovoltaic utilization rate low, and it is high to abandon light quantity.Meanwhile a large amount of of photovoltaic plant connect
Enter also run power system stability and put forward higher requirements, for photovoltaic plant and power station association system, water can be passed through
Power station power regulation optimizes control to total system.
Summary of the invention
Goal of the invention: the technical problem to be solved by the present invention is to the electrical combined system active command assignment problem of water power-,
A kind of method that the adjustment capability that can be contributed using water power carries out the distribution of water light complementary system active power dispatch optimization is provided.
Technology contents: the technical solution adopted by the present invention to solve the technical problems is as follows:
A kind of water power and photoelectricity multi-objective optimization design of power and control method for coordinating, include the following steps:
(1) it needs to be arranged the control total time of the electrical combined system of water power-according to dispatching of power netwoks and control instruction issues week
Phase distributes active command Hydropower Unit and photovoltaic plant using following step (2)~step (5) Optimization Scheduling；
(2) according to the hydrology of current predictive and Lighting information, hydroelectric generation output power P can be utilized by calculating current maximumh
With photovoltaic power generation output power PS；
(3) real output of current water power and photoelectricity is fed back to power controller；
(4) building multiple-objection optimization is maximized according to the electrical combined system grid connection maximizing the benefits of water power-and photovoltaic consumption
Instruction is handed down to two to after water power and photoelectric power optimization by model, Optimization Solution water power and the respective output power of photoelectricity
Subsystem；
Wherein optimization aim is Z=min (f1,f2) (1)；
In formula
Wherein, f1For the grid-connected total benefit of water light complementary system, f2Water light complementary system abandons light quantity, ChIt is grid-connected for hydroelectric generation
Benefit coefficient；CsFor photovoltaic power generation grid-connecting benefit coefficient, PspreFor photovoltaic maximum output predicted value.
Constraint condition are as follows:
Hmin≤H(t)≤Hmax (8)
H (t)=H (t-1)+Qspd(t-1)Δt (9)
In formula,Indicate the energy that hydroelectric power system is transmitted to power grid,Indicate that photovoltaic generating system is transmitted to power grid
Energy.PhpreHydroelectric generation output power, P can be utilized for maximumspreFor photovoltaic maximum output predicted value, PsetIt is complementary for water light
Performance number is sent in combining for system setting outside；ksIndicate the coefficient of variation of photovoltaic plant power output；HminAnd HmaxIt indicates in each period
The minimum and maximum water consumption of reservoir；QspdIndicate power station flow rate of water flow；
In addition, water power transformational relation is Ph=A η Q (t) h (10)；
Wherein A is water power conversion constant, usually takes 9.81；η is the efficiency in power station, and h is the head height of reservoir.
(5) closed-loop control two subsystems output power, return step (3) after this secondary control end cycle, until reaching
The master control time.
The utility model has the advantages that the invention proposes a kind of water power and photoelectricity multi-objective optimization design of power and control method for coordinating, the party
Method is predicted based on ultra-short term photovoltaic power, the various limitations of power station-photovoltaic plant association system operation is considered, to improve photovoltaic
Digestion capability and grid-connected maximizing the benefits are optimization aim, using multi-objective Algorithm, optimize the output work of water power and photovoltaic plant
Rate.Compared with existing water power-photovoltaic plant jointly controls, coordinate the grid-connected benefit and photovoltaic of association system simultaneously using this method
Digestion capability, to facilitate the grid-connected of renewable energy and opposite power grid close friend operation.
Detailed description of the invention
Fig. 1 is the general flow chart of the method for the present invention.
Fig. 2 is power station-photovoltaic plant association system structure chart.
Fig. 3 is that embodiment maximum can utilize water power and photoelectric power data.
Specific embodiment:
Present invention is further described in detail with reference to the accompanying drawings and in conjunction with the embodiments.But the present invention is not limited to be given
Example out.
Fig. 2 is power station-photovoltaic plant association system, including power station subsystem, photovoltaic plant subsystem, power control
Device.
The present invention for water power and photovoltaic power generation multi-objective optimization design of power and coordinated control, be illumination simulation randomness and
Fluctuation, it is assumed that photovoltaic power generation output power information, water power and photovoltaic electricity price point can be utilized just like 24 hours maximums shown in Fig. 3
It Wei not 0.54 yuan/kwh and 0.9 yuan/kwh.
(1) it needs to be arranged under water power-photovoltaic plant association system control total time and control instruction according to dispatching of power netwoks
The period is sent out, distributes active command Hydropower Unit and photovoltaic plant using following step (2)~step (5) Optimization Scheduling；
For example, water power-photovoltaic plant association system control total time be 24 hours, control instruction issue the period be 15 points
Clock, altogether 96 instructions.
(2) according to the Lighting information of current predictive and Hydrologic Information, current photovoltaic maximum output predicted value P is calculatedspre
With hydroelectric generation output power Phpre；
(3) real output of current water power and photovoltaic power generation is fed back to power controller；
(4) more according to water power-grid-connected maximizing the benefits of photovoltaic plant association system and the maximization building of photovoltaic digestion capability
Optimized model, Optimization Solution water power and the respective output power of photovoltaic power generation will refer to after optimizing to water power and photovoltaic generation power
Order is handed down to two subsystems；
Wherein optimization aim is Z=min (f1,f2) (1)；
In formula
Wherein, f1For the grid-connected total benefit of water light complementary system, f2Water light complementary system abandons light quantity, ChIt is grid-connected for hydroelectric generation
Benefit coefficient；CsFor photovoltaic power generation grid-connecting benefit coefficient, PspreFor photovoltaic maximum output predicted value.
Constraint condition are as follows:
Hmin≤H(t)≤Hmax (8)
H (t)=H (t-1)+Qspd(t-1)Δt (9)
In formula,Indicate the energy that hydroelectric power system is transmitted to power grid,Indicate that photovoltaic generating system is transmitted to power grid
Energy.PhpreHydroelectric generation output power, P can be utilized for maximumspreFor photovoltaic maximum output predicted value, PsetIt is complementary for water light
Performance number is sent in combining for system setting outside；ksIndicate the coefficient of variation of photovoltaic plant power output；HminAnd HmaxIt indicates in each period
The minimum and maximum water consumption of reservoir；QspdIndicate power station flow rate of water flow；
In addition, water power transformational relation is Ph=A η Q (t) h (10)；
Wherein A is water power conversion constant, usually takes 9.81；η is the efficiency in power station, and h is the head height of reservoir.
Such as taking H initial value is 150000m3, PsetFor 80MW, power station maximum power 100MW, flow rate of water flow when completely sending out
For 215m3/ s, HminAnd HmaxFor 3000m3And 150000m3。
(5) closed-loop control two subsystems output power, return step (3) after this secondary control end cycle, until reaching
The master control time.
To the validity for verifying coordinated control proposed by the present invention, single object optimization and more mesh are carried out to association system respectively
Mark optimization, wherein scheme 1: grid-connected total benefit single object optimization；Scheme 2: photovoltaic digestion capability single object optimization；Scheme 3: water
The grid-connected benefit and photovoltaic digestion capability maximum of light complementary system entirety turn to optimization aim.
Optimum results are as shown in table 1:
1 three scheme optimization results of table
| Operating scheme | Grid-connected benefit/member | Photovoltaic digestion capability/% |
| Scheme one | 4.03x106 | 72.23% |
| Scheme two | 3.23x105 | 86.48% |
| Scheme three | 3.86x106 | 79.66% |
It can be seen that can improve photovoltaic while guaranteeing grid-connected benefit using multi-objective optimization design of power proposed by the present invention and disappear
Ability is received, to reach opposite balance between grid-connected benefit and photovoltaic digestion capability.
Claims (1)
1. a kind of water power and photoelectricity multi-objective optimization design of power and control method for coordinating, which comprises the steps of:
(1) it needs to be arranged the control total time of the electrical combined system of water power-according to dispatching of power netwoks and control instruction issues the period,
(2) according to the hydrology of current predictive and Lighting information, hydroelectric generation output power P can be utilized by calculating current maximumhAnd photovoltaic
Generate electricity output power PS；
(3) real output of current water power and photoelectricity is fed back to power controller；
(4) building Model for Multi-Objective Optimization is maximized according to the electrical combined system grid connection maximizing the benefits of water power-and photovoltaic consumption,
Instruction is handed down to two subsystems to after water power and photoelectric power optimization by Optimization Solution water power and the respective output power of photoelectricity
System；
Wherein optimization aim is Z=min (f1,f2)(1)；
In formula
Wherein, f1For the grid-connected total benefit of water light complementary system, f2Water light complementary system abandons light quantity, ChFor the grid-connected benefit of hydroelectric generation
Coefficient；CsFor photovoltaic power generation grid-connecting benefit coefficient, PspreFor photovoltaic maximum output predicted value；
Constraint condition are as follows:
Hmin≤H(t)≤Hmax (8)
H (t)=H (t-1)+Qspd(t-1)Δt(9)
In formula,Indicate the energy that hydroelectric power system is transmitted to power grid,Indicate the energy that photovoltaic generating system is transmitted to power grid
Amount, PhpreHydroelectric generation output power, P can be utilized for maximumspreFor photovoltaic maximum output predicted value, PsetFor water light complementary system
Performance number is sent in combining for being arranged outside；ksIndicate the coefficient of variation of photovoltaic plant power output；HminAnd HmaxIndicate reservoir in each period
Minimum and maximum water consumption；QspdIndicate power station flow rate of water flow；
Water power transformational relation is Ph=A η Q (t) h (10)；
Wherein A is water power conversion constant, takes 9.81；η is the efficiency in power station, and h is the head height of reservoir；
(5) closed-loop control two subsystems output power, return step (3) after this secondary control end cycle, until reaching master control
Time processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611050971.2A CN106549421B (en) | 2016-11-24 | 2016-11-24 | A kind of water power and photoelectricity multi-objective optimization design of power and control method for coordinating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611050971.2A CN106549421B (en) | 2016-11-24 | 2016-11-24 | A kind of water power and photoelectricity multi-objective optimization design of power and control method for coordinating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106549421A CN106549421A (en) | 2017-03-29 |
| CN106549421B true CN106549421B (en) | 2019-04-30 |
Family
ID=58394959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611050971.2A Active CN106549421B (en) | 2016-11-24 | 2016-11-24 | A kind of water power and photoelectricity multi-objective optimization design of power and control method for coordinating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106549421B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107122939B (en) * | 2017-04-28 | 2021-03-09 | 厦门大学 | Joint prediction method for warehousing quantity and ex-warehouse quantity |
| CN109386429B (en) * | 2017-08-04 | 2021-01-15 | 中国电力科学研究院 | Coordinated operation control method and device for wind power and photo-thermal power generation complementary system |
| CN110175421B (en) * | 2019-05-31 | 2020-10-27 | 杭州电子科技大学 | Novel water-light complementary multi-target optimization operation method |
| CN111130147B (en) * | 2020-02-21 | 2023-09-05 | 海南电网有限责任公司电力科学研究院 | Intelligent micro-grid coordinated control method based on clean energy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932668A (en) * | 2016-05-20 | 2016-09-07 | 甘肃省电力公司风电技术中心 | New energy power generation right replacement assessment method used for minimizing electric quantity of abandoned wind and abandoned light |
| CN106058918A (en) * | 2016-06-04 | 2016-10-26 | 东北电力大学 | Photovoltaic acceptance feasible region-based energy storage control policy and economy evaluation method |
-
2016
- 2016-11-24 CN CN201611050971.2A patent/CN106549421B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932668A (en) * | 2016-05-20 | 2016-09-07 | 甘肃省电力公司风电技术中心 | New energy power generation right replacement assessment method used for minimizing electric quantity of abandoned wind and abandoned light |
| CN106058918A (en) * | 2016-06-04 | 2016-10-26 | 东北电力大学 | Photovoltaic acceptance feasible region-based energy storage control policy and economy evaluation method |
Non-Patent Citations (2)
| Title |
|---|
| 含水电的区域风光容量优化配置;王亮 等;《现代电力》;20150228;第32卷(第1期);89-94 |
| 水-光互补协调运行的理论与方法初探;安源 等;《太阳能学报》;20160831;第37卷(第8期);1985-1992 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106549421A (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106549421B (en) | A kind of water power and photoelectricity multi-objective optimization design of power and control method for coordinating | |
| CN104467030B (en) | Power distribution method based on wind power and thermal power combined power generation | |
| CN105470982A (en) | Generated power control system and control method for intelligent micro-grid with medium energy storage function | |
| CN103795233A (en) | Modularized inverter power supply control method for intelligent start and stop polling mechanism | |
| CN105591391A (en) | Wind and solar energy storage combined power station reactive voltage control method | |
| CN103219751A (en) | Control method of active power of clustered wind power plants | |
| CN107069786A (en) | A kind of system and method for lifting wind electricity digestion | |
| CN204615404U (en) | Ventilation air gas/photovoltaic generating system that automatic power factor regulates | |
| CN109936167A (en) | A kind of light/wind suitable for water electrolysis hydrogen production/storage/alternating current electric energy scheduling system and method | |
| CN202957612U (en) | Wind and photovoltaic power storage intelligent microgrid and control system thereof | |
| CN106600022B (en) | Wind-light-gas-seawater pumped storage isolated power system capacity optimal configuration method based on multi-objective optimization | |
| CN109002947A (en) | A kind of region multi-energy system thermoelectricity schedule model method | |
| CN205011850U (en) | Hot balance control device of aluminium cell | |
| CN109386429B (en) | Coordinated operation control method and device for wind power and photo-thermal power generation complementary system | |
| CN106839082B (en) | Wind power heating regulator control system and regulation method | |
| CN103151796A (en) | Region coordinated control system and region coordinated control method based on active power distribution network | |
| CN201414006Y (en) | Photovoltaic grid-connected power generation system | |
| CN209978135U (en) | Heat supply system | |
| CN104239960A (en) | Electricity generating schedule optimizing method considering pump storage unit | |
| CN203382827U (en) | Non-grid-connected multi-energy synergic power supply aluminum electrolysis system | |
| CN105048505B (en) | A kind of wind-solar complementary type micro-grid system for intelligent residential district | |
| CN104253443A (en) | Active power quick regulation method for virtual small hydropower stations | |
| CN103715753A (en) | Photovoltaic greenhouse temperature regulation system | |
| Li et al. | The capacity optimization of wind-photovoltaic-thermal energy storage hybrid power system | |
| CN105162176A (en) | Wind farm output power control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |