CN105937477A - Wind power and photovoltaic microgrid water pumping and energy storing power generation system - Google Patents
Wind power and photovoltaic microgrid water pumping and energy storing power generation system Download PDFInfo
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- CN105937477A CN105937477A CN201610403281.4A CN201610403281A CN105937477A CN 105937477 A CN105937477 A CN 105937477A CN 201610403281 A CN201610403281 A CN 201610403281A CN 105937477 A CN105937477 A CN 105937477A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 238000010248 power generation Methods 0.000 title abstract description 15
- 238000005086 pumping Methods 0.000 title abstract description 3
- 230000002441 reversible effect Effects 0.000 claims abstract description 30
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 43
- 238000004146 energy storage Methods 0.000 claims description 21
- 238000009499 grossing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000002028 Biomass Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
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- H02J3/382—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
- H02S10/12—Hybrid wind-PV energy systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/20—Systems characterised by their energy storage means
-
- 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
- Y02E10/20—Hydro energy
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a wind power and photovoltaic microgrid water pumping and energy storing power generation system. The system comprises a microgrid direct-current bus, an alternating-current bus, a system controller, a photovoltaic power generation subsystem, a DC-DC controller, a capacitor switch set, a super-capacitor set, an energy-storing battery set, a two-way DC-DC controller, a wind power generation subsystem, an AC-DC controller, a DC-AC controller, a water pump switch set, a water pump unit, a selector switch set, a reversible water turbine set, a thrown-in switch set, a power generator set, a water turbine set, a booster station and a large power grid. The wind power generation subsystem and the photovoltaic power generation subsystem can be subjected to running control at maximum power, maximum energy acquisition is guaranteed, system power balance and electric energy quality are not considered, the thrown-in set number of the super-capacitor set is controlled, smoothing is performed on the voltage of the microgrid direct-current bus, and the bus voltage is kept stable. The electric energy quality problem caused by wind power and photovoltaics can be neglected, the power generation utilizing rate of renewable energy is increased, and reliable, controllable and stable electric energy is provided for the large power grid.
Description
Technical field
The invention belongs to new forms of energy wind-power electricity generation and the technical field of photovoltaic generation micro-capacitance sensor comprehensive utilization, relate to
And the electric energy application of wind-force and photovoltaic generation high efficiency smooth, it is specifically related to a kind of wind-powered electricity generation photovoltaic micro and draws water
Energy storage generating system.
Background technology
Along with the continuous expansion of wind-driven generator pool-size, wind-powered electricity generation intermittence characteristic causes major part wind turbine
Group can not be grid-connected, and the utilization ratio of Wind turbines is the highest, and photovoltaic generation capacity the most constantly increases.Scene is sent out
Electrical characteristics make its electric energy well not access in bulk power grid.Domestic a lot of entity and individual are all in research
How high efficiency smooth utilizes scene new forms of energy.The teacher of Anhui Polytechnic University proposes self adaptation wind light mutual complementing
Heating system.Such as some experts propose water scene and biomass multi-energy integrated complementary electricity-generating method and dress
Putting (Chinese patent application, application number: 201110201589.8), this application emphasis is: with water
Can be main body, make full use of the distinctive valley breeze in power station, local use solar energy, biomass energy and
They are gathered in around power station by the regenerative resource of his energy Relatively centralized, form centered by water power,
The multipotency integrated complementary electricity generation systems such as water scene and biomass.A kind of area power grid scene of small hydropower station cluster
The power generation complemented control method of aqueous vapor (Chinese patent application, application number: 201510291179.5), this is special
The core of profit is to use regulation small hydropower system active power output that grid-connected wind-powered electricity generation is carried out power-balance.One
Kind mixing wind light mutual complementing pumped storage and control method (Chinese patent application, application number:
201110300964.4), this patent core is: tradition wind-light complementary system energy storage device accumulator
Group pumped storage system replaces, and uses Reversible Pump-Turbine to draw water at pumped-storage units
Or generating, and apply sectional integration method that the upper pool of pumped-storage units carries out the monitoring control of energy.
Pumped-storage power generation in hydroelectric power system, the water-storage when network load low ebb, load is high
Generate electricity during peak.Its stable output power that generates electricity, does not impacts bulk power grid.Scene micro-capacitance sensor accesses big
During electrical network, electrical network can be caused certain impact by the unstable row of its power.In conjunction with pumped-storage power generation
Advantage, it is proposed that a kind of scene water-storage micro-capacitance sensor, its core is: the electric energy of wind and light generating system
Not being transported in bulk power grid, all of electric energy is used for water-storage, pumping system by common ac pump group and
Reversible Pump-Turbine group, pipeline, sink dam and upper water dykes and dams composition；The water of upper water dykes and dams passes through
Reversible Pump-Turbine group and common turbine-generator units change into electric energy, press to bulk power grid by liter defeated
Send regulated power.The advantage of this invention is to have evaded naturally limiting of scene, improves wind light generation system
The utilization of system, by the method regulating pumped storage system, can be reliable and stable to bulk power grid conveying
Controlled electric energy.
Summary of the invention
Caused gas-to electricity efficiency low for wind-powered electricity generation electric energy intermittence characteristic and photovoltaic generation by natural cause
Under defect, it is an object of the invention to, it is provided that a kind of wind-powered electricity generation photovoltaic micro pumped storage system,
The power quality problem that the negligible wind-powered electricity generation of this system, photovoltaic bring, maximal efficiency utilize regenerative resource,
Improve capacity factor and output electric energy is controlled and provides reliable, controlled, stable electric energy to bulk power grid.
In order to realize above-mentioned task, the present invention takes following technical solution:
A kind of wind-powered electricity generation photovoltaic micro pumped storage system, it is characterised in that this system includes micro-
Electrical network dc bus, ac bus, system controller, photovoltaic generation subsystem, DC-DC controller,
Capacitance switch group, super capacitor group, energy storage battery group, bi-directional DC-DC controller, wind-power electricity generation
System, AC-DC controller, DC-AC controller, pump switch group, water pump assembly, switching switches set,
Reversible water turbine set, input switches set, generating set, water turbine set, booster stations and bulk power grid, wherein:
Photovoltaic generation subsystem and wind-power electricity generation subsystem are controlled by DC-DC controller and AC-DC respectively
Device is connected with micro-capacitance sensor dc bus；Energy storage battery group is also connected to micro-by bi-directional DC-DC controller
On electrical network dc bus；Micro-capacitance sensor dc bus connects super capacitor group also by capacitance switch group；
Micro-capacitance sensor dc bus is also connected with DC-AC controller, DC-AC controller by pump switch group and
Switching switches set connects water pump assembly and reversible water turbine set respectively；Water pump assembly and reversible hydraulic turbine component
Tong Guo not access in lower water dykes and dams water by pipeline；
Ac bus connects bulk power grid by booster stations, and ac bus is connected in series by input switches set and sends out
Group of motors and water turbine set；Ac bus is also connected with switching switches set；
System controller connects DC-DC controller, capacitance switch group, AC-DC controller, two-way respectively
DC-DC controller, DC-AC controller, input switches set, pump switch group and switching switches set.
It is photovoltaic array group according to photovoltaic generation subsystem of the present invention.
The described water pump in water pump assembly all uses three-phase alternating current water pump.
The wind-powered electricity generation photovoltaic micro pumped storage system of the present invention, wind-power electricity generation subsystem therein exists
Wind speed just can control to generate electricity by maximum power tracing after reaching requirement, and photovoltaic generation subsystem is also carried out
High-power Tracing Control, wind-power electricity generation subsystem passes through AC-DC controller, and photovoltaic generation subsystem passes through
DC-DC controller, is connected with micro-capacitance sensor dc bus, by controlling super capacitor group and energy storage battery
Group, feed pump unit provides stable electric energy, and water pump assembly draws water after obtaining electric energy upper water dykes and dams, on
Water dykes and dams are generated electricity by water wheels, generating set under control system regulates and controls, and water wheels, generating set electric energy are logical
It is incorporated in bulk power grid after crossing booster stations boosting.Its work process is:
After wind speed reaches threshold wind velocity, wind-power electricity generation subsystem starts and sends alternating current, and AC-DC is controlled
Device processed carries out maximum power tracing control, through AC-DC controller, and power flow micro-capacitance sensor dc bus,
Photovoltaic array mass-sending electricity, by DC-DC converter, is connected with micro-capacitance sensor dc bus, jointly to super
Capacitance group, energy storage battery group, water pump assembly output electric energy；
Super capacitor group is connected directly between on micro-capacitance sensor dc bus, and the switching switched by capacitance group is right
The voltage pulsation of micro-capacitance sensor dc bus is smoothed.Energy storage battery group is mainly to micro-capacitance sensor direct current
All electrical secondary systems of bus carry out standby energy storage for power supply, and micro-capacitance sensor dc bus passes through bi-directional DC-DC
Energy storage battery group is charged by changer, simultaneously when micro-capacitance sensor dc bus power lacks, and energy storage electric power storage
Pond provides electric energy by bidirectional DC-DC converter to micro-capacitance sensor dc bus.Micro-capacitance sensor dc bus passes through
DC-AC is converted into exchange feed pump unit and powers.Micro-capacitance sensor dc bus gives control by DC-AC controller
System power supply processed, powers to the equipment such as illumination communication simultaneously.Reversible water turbine set by switching switch with
DC-AC and ac bus connect, water pump assembly is connected with DC-AC by pump switch.System controller
With DC-DC controller, capacitance switch group, AC-DC controller, bi-directional DC-DC controller, DC-AC
Controller, input switches set, pump switch group and switching switches set are kept in communication, and exchange information, obtain
Wind-power electricity generation subsystem, photovoltaic generation subsystem and upper and lower water level information, system controller obtains this
After a little information, intelligent management, micro-capacitance sensor dc bus electric energy preferentially supplies water pump assembly and draws water, when
When micro-capacitance sensor dc bus electric energy constantly increases, by switching switch, reversible water turbine set is changed into water pump mould
Formula puts into water-storage.The water level information of upper water dykes and dams judges, the preferential turbine-generator units that puts into generates electricity,
When water level increases or bulk power grid scheduling exceedes outside the amount of hydrogenerator group, by switching switch by
Gradually reversible water turbine set is changed into power generation mode to put into.Turbine-generator units and reversible water turbine set are by handing over
Stream bus is transported to booster stations, and booster stations are connected with bulk power grid to certain voltage by transformer boost.
The bank of super capacitors of micro-capacitance sensor dc bus carries out dynamic transient power-balance, energy storage battery group
Carry out short-time rating balance, stable to ensure micro-capacitance sensor DC bus-bar voltage, make water pump assembly, can be against the current
Take turns unit, turbine-generator units can be with safe operation and safe shutdown.
The start and stop of generating set by system controller control, its to ac bus cutting-in control by himself
Control device to control, provide to bulk power grid and stablize controlled electric energy.
The wind-powered electricity generation photovoltaic micro pumped storage system of the present invention, compared with prior art has as follows
Advantage:
Maximal efficiency uses wind-power electricity generation subsystem, photovoltaic generation subsystem regenerative resource, reduces interval
The characteristic impact on the electrical network quality of power supply, the electric energy that wind-power electricity generation subsystem, photovoltaic generation subsystem produce
Being completely used for water-storage, hydroelectric power system provides controlled, reliable and stable electric energy to electrical network.
Wind-power electricity generation subsystem and photovoltaic generation subsystem in system all peak power can run control, protect
Card ceiling capacity obtains, and does not consider system power balance and power quality problem.Thus without because of electrical network
Power quality problem and limit operation.System uses micro-capacitance sensor DC bus structure, with the power of each unit
Switching technology easily realizes.
It is provided with bank of super capacitors on micro-capacitance sensor dc bus, controls its input group number to micro-capacitance sensor direct current
Busbar voltage smooths, and keeps bus voltage stable.
Reversible water turbine set, water pump assembly, generating set, whole electric energy of micro-capacitance sensor dc bus first supply
Feed pump unit draws water upper water dykes and dams from lower water dykes and dams, and when electric energy surplus, starting and switch can be against the current
Wheel unit is that water pump pattern carries out water-storage；Hydro-generating Unit enters according to system controller regulation and control instruction
Row generating, when water level is too high or demand power exceeds unit output, switches reversible water turbine set for sending out
Bulk power grid is powered by power mode.
System controller and DC-DC controller, capacitance switch group, AC-DC controller, bi-directional DC-DC
Controller, DC-AC controller, put into switches set, pump switch group and switching switches set keep in communication into
The exchange of row information and control, can keep system run all right, and simultaneity factor controller is according to water level, wind
The information such as optical, electrical net side demand, carry out Based Intelligent Control, can accept outside dispatch command simultaneously, meet
The overall planning scheduling of area power grid.
Accompanying drawing explanation
Fig. 1 is the wind-powered electricity generation photovoltaic micro pumped storage system structural representation of the present invention.
Labelling in figure represents respectively: 1, micro-capacitance sensor dc bus, 2, ac bus, 3, system control
Device processed, 4, photovoltaic generation subsystem, 5, DC-DC controller, 6, capacitance switch group, 23, super
Capacitance group, 7, energy storage battery group, 8, bi-directional DC-DC controller, 9, wind-power electricity generation subsystem,
10, AC-DC controller, 11, DC-AC controller, 12, pump switch group, 13, water pump assembly,
14, switching switches set, 15, reversible water turbine set, 16, lower water dykes and dams, 17, put into switches set, 18,
Generating set, 19, common water turbine set, 20, upper water dykes and dams, 21, booster stations, 22, bulk power grid.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Detailed description of the invention
Focusing on of the mentality of designing of the present invention, with the electric energy of wind-powered electricity generation photovoltaic for water-storage, draws water
Energy-storage system contains three class units: common water pump assembly, reversible water turbine set and common hydroelectric generation
Unit, unit needs all information of system controller intelligent interpretation system to carry out start and stop.
Seeing shown in accompanying drawing 1, the present embodiment provides a kind of wind-powered electricity generation photovoltaic micro pumped-storage power generation system
System, this system includes micro-capacitance sensor dc bus 1, ac bus 2, system controller 3, photovoltaic are sent out
Electronic system 4, DC-DC controller 5, capacitance switch group 6, super capacitor group 23, energy storage battery
Group 7, bi-directional DC-DC controller 8, wind-power electricity generation subsystem 9, AC-DC controller 10, DC-AC
Controller 11, pump switch group 12, water pump assembly 13, switching switches set 14, reversible water turbine set
15, switches set 17, generating set 18, common water turbine set 19, booster stations 21 and bulk power grid are put into
22, wherein:
Photovoltaic generation subsystem 4 and wind-power electricity generation subsystem 9 are respectively by DC-DC controller 5 He
AC-DC controller 10 is connected with micro-capacitance sensor dc bus 1；Energy storage battery group 7 passes through bi-directional DC-DC
Controller 8 is also connected on micro-capacitance sensor dc bus 1；Micro-capacitance sensor dc bus 1 is also by capacitance switch
Group 6 connection super capacitor group 23；
Micro-capacitance sensor dc bus 1 is also connected with DC-AC controller 11, and DC-AC controller 11 passes through water pump
Switches set 12 and switching switches set 14 connect water pump assembly 13 and reversible water turbine set 15 respectively；Water pump
Unit 13 and reversible water turbine set 15 are accessed in lower water dykes and dams 16 water by pipeline respectively；
Ac bus 2 connects bulk power grid 22 by booster stations 21, and ac bus 2 is by putting into switches set
17 are connected in series generating set 18 and common water turbine set 19；Ac bus 2 also with switching switches set
14 are connected；
System controller 3 connects DC-DC controller 5, capacitance switch group 6, AC-DC controller respectively
10, bi-directional DC-DC controller 8, DC-AC controller 11, input switches set 17, pump switch group
12 and switching switches set 14.
In the present embodiment, photovoltaic generation subsystem 4 selects photovoltaic array group.
Water pump in water pump assembly 13 all uses three-phase alternating current water pump.
Capacitance switch group 6 described in the present embodiment, super capacitor group 23, energy storage battery group 7, water
Switch pump group 12, water pump assembly 13, switching switches set 14, reversible water turbine set 15, input switches set
17, generating set 18, common water turbine set 19, " group " therein represents containing several identical portions
Part, such as capacitance switch group 6 include several capacitance switch, common water turbine set 19 includes
Several hydraulic turbines etc., have employed " ... " labelling and represent in figure.
After wind speed reaches threshold wind velocity, wind-power electricity generation subsystem 9 starts and sends alternating current, passes through
AC-DC controller 10 is connected with micro-capacitance sensor dc bus 1, and photovoltaic generation subsystem 4 passes through DC-DC
Controller 5 is connected with micro-capacitance sensor dc bus 1, jointly to super capacitor group 23, energy storage battery group 7,
Water pump assembly 13 and reversible water turbine set 15 export electric energy.
Energy storage battery group 7 is connected with micro-capacitance sensor dc bus by DC-DC controller, works as wind-power electricity generation
When subsystem is almost nil with the output of photovoltaic generation subsystem, provide electricity to micro-capacitance sensor dc bus in short-term
Can, it is ensured that water pump assembly, reversible water turbine set, turbine-generator units safe shutdown.
Super capacitor group 23 is connected on micro-capacitance sensor dc bus 1 by capacitance group switch, can be to micro-
The transient voltage fluctuation of electrical network dc bus 1 is balanced.
Set of cells is charged by micro-capacitance sensor dc bus 1 by controllable bidirectional DC-DC converter 8, simultaneously when
When dc bus 1 Voltage Drop is serious, energy storage battery group 7 passes through bi-directional DC-DC controller 8 to micro-
Electrical network dc bus 1 discharges, and keeps voltage in permissible value scope.
Water pump assembly 13 all uses three-phase alternating current water pump, and micro-capacitance sensor dc bus 1 is by controlled DC-AC
Controller 11 is converted into alternating current feed pump unit 13 and powers, and draws water upper water dike from lower water dykes and dams 16
Dam 20.
Water pump assembly 13 is carried out intelligent decision by system controller device, controls to throw by pump switch group 12
Enter the quantity of water pump:
When the supply of micro-capacitance sensor dc bus 1 power is beyond water pump assembly 13 load, with DC-AC control
Device 11 is connected to reversible water turbine set 15 by switching switches set 14, system controller 3 control to cut
Changing switches set 14, switching in reversible water turbine set 15 one or several is the pattern of drawing water, by lower water dykes and dams
16 draw water upper water dykes and dams 20.
Reversible water turbine set 5 is connected to pumped-storage power generation subsystem exchange mother by switching switches set 14
Line 2, generating set 18, common water turbine set 19 by put into switches set 17 be connected to ac bus 2,
Pumped-storage power generation subsystem ac bus 2 is powered to bulk power grid 23 by booster stations 21.
System controller 3 gather DC-DC controller 5, capacitance switch group 6, AC-DC controller 10,
Bi-directional DC-DC controller 8, DC-AC controller 11, input switches set 17, pump switch group 12 and
Switching switches set 14 and micro-capacitance sensor dc bus, ac bus, the water level information of bulk power grid, electrical network
Information, dispatching of power netwoks instruction etc., it is ensured that the input voltage of water pump assembly is stable in permissible value scope, control
Putting into switches set 17, put into common water turbine set 19 and generate electricity, generating set 18 is by exchange mother
Line 2 is transported to booster stations 21, when water level is too high or grid side demand is excessive, opens by controlling switching
Pass group 14, switching one or several reversible water turbine set 15 is power generation mode, by switching switches set 14
Grid-connected on ac bus 2, when upper water dykes and dams 20 water level is too low, system controller 3 gradually according to
The order excision of reversible water turbine set 15 to turbine-generator units 19, water dykes and dams 16 water level is too low instantly
Time, system controller 3 gradually excises according to the order of reversible water turbine set 15 to water pump assembly 13.
Claims (3)
1. a wind-powered electricity generation photovoltaic micro pumped storage system, it is characterised in that this system includes
There is micro-capacitance sensor dc bus (1), ac bus (2), system controller (3), photovoltaic generation
System (4), DC-DC controller (5), capacitance switch group (6), super capacitor group (23),
Energy storage battery group (7), bi-directional DC-DC controller (8), wind-power electricity generation subsystem (9), AC-DC
Controller (10), DC-AC controller (11), pump switch group (12), water pump assembly (13),
Switching switches set (14), reversible water turbine set (15), put into switches set (17), generating set (18),
Common water turbine set (19), booster stations (21) and bulk power grid (22), wherein:
Photovoltaic generation subsystem (4) and wind-power electricity generation subsystem (9) are respectively by DC-DC controller (5)
It is connected with micro-capacitance sensor dc bus (1) with AC-DC controller (10)；Energy storage battery group (7) is led to
Cross bi-directional DC-DC controller (8) to be also connected on micro-capacitance sensor dc bus (1)；Micro-capacitance sensor direct current is female
Line (1) connects super capacitor group (23) also by capacitance switch group (6)；
Micro-capacitance sensor dc bus (1) is also connected with DC-AC controller (11), DC-AC controller (11)
Water pump assembly (13) and reversible is connected respectively by pump switch group (12) and switching switches set (14)
Water turbine set (15)；Water pump assembly (13) and reversible water turbine set (15) are accessed by pipeline respectively
In lower water dykes and dams water；
Ac bus (2) connects bulk power grid (22) by booster stations (21), and ac bus (2) leads to
Cross input switches set (17) and be connected in series generating set (18) and common water turbine set (19)；Exchange
Bus (2) is also connected with switching switches set (14)；
System controller (3) connects DC-DC controller (5), capacitance switch group (6), AC-DC respectively
Controller (10), bi-directional DC-DC controller (8), DC-AC controller (11), input switch
Group (17), pump switch group (12) and switching switches set (14).
2. wind-powered electricity generation photovoltaic micro pumped storage system as claimed in claim 1, its feature exists
In, described photovoltaic generation subsystem (4) is photovoltaic array group.
3. wind-powered electricity generation photovoltaic micro pumped storage system as claimed in claim 1, its feature exists
In, the described water pump in water pump assembly all uses three-phase alternating current water pump.
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| CN110266042A (en) * | 2019-06-19 | 2019-09-20 | 浙江中新电力工程建设有限公司自动化分公司 | Alternating current-direct current mixing micro-capacitance sensor coordinated control processing system |
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