CN105937477B - A kind of wind-powered electricity generation photovoltaic micro pumped storage system - Google Patents

A kind of wind-powered electricity generation photovoltaic micro pumped storage system Download PDF

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Publication number
CN105937477B
CN105937477B CN201610403281.4A CN201610403281A CN105937477B CN 105937477 B CN105937477 B CN 105937477B CN 201610403281 A CN201610403281 A CN 201610403281A CN 105937477 B CN105937477 B CN 105937477B
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controller
switching
micro
power
wind
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CN105937477A (en
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张彦宁
段晨东
李婷
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Changan University
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Changan University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/06Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/007Adaptations 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/008Adaptations 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • H02J3/382Dispersed generators the generators exploiting renewable energy
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10PV 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10PV 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
    • H02S10/12Hybrid wind-PV energy systems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/20Systems characterised by their energy storage means
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power conversion electric or electronic aspects
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16Mechanical energy storage, e.g. flywheels or pressurised fluids
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Abstract

The invention discloses a kind of wind-powered electricity generation photovoltaic micro pumped storage systems, including micro-capacitance direct current bus, ac bus, system controller, photovoltaic power generation subsystem, DC-DC controller, capacitance switch group, super capacitor group, energy storage battery group, bi-directional DC-DC controller, wind-power electricity generation subsystem, AC-DC controller, DC-AC controller, pump switch group, water pump assembly, switching switching group, reversible water turbine set, investment switching group, generating set, water turbine set, booster stations and bulk power grid.Wherein wind-power electricity generation subsystem and photovoltaic power generation subsystem all can maximum power operation controls, guarantee that ceiling capacity obtains, without considering system power balance and power quality, the several pairs of micro-capacitance direct current bus voltages of investment group for controlling supercapacitor group carry out smoothly, bus voltage being kept to stablize.Negligible wind-powered electricity generation, photovoltaic bring power quality problem improve renewable energy power generation utilization rate and provide reliable, controllable, stable electric energy to bulk power grid.

Description

A kind of wind-powered electricity generation photovoltaic micro pumped storage system
Technical field
The invention belongs to the technical field that new energy wind-power electricity generation and photovoltaic power generation micro-capacitance sensor comprehensively utilize, be related to wind-force and A kind of electric energy application of photovoltaic power generation high efficiency smooth, and in particular to wind-powered electricity generation photovoltaic micro pumped storage system.
Background technique
With the continuous expansion of wind-driven generator pool-size, wind-powered electricity generation intermittence characteristic causes most of Wind turbines cannot be simultaneously The utilization efficiency of net, Wind turbines is not high, and photovoltaic power generation capacity also constantly increases.Wind light generation characteristic prevents its electric energy from very In good access bulk power grid.All in research, how high efficiency smooth utilizes honourable new energy for domestic many entity and individual.Anhui work The teacher of Cheng great Xue proposes adaptive wind light mutual complementing heating system.Such as some experts propose water scene and biomass multi-energy Integrated complementary electricity-generating method and device (Chinese patent application, application number: 201110201589.8), this application emphasis is: Based on water energy, make full use of the distinctive valley breeze in power station, local use solar energy, biomass energy and other can opposite collection In renewable energy, they are gathered in around power station, form centered on water power, the multipotencys collection such as water scene and biomass At complementary power generation system.A kind of power generation complemented control method of area power grid scene aqueous vapor of small hydropower station cluster (Chinese patent application, Application number: 201510291179.5), the core of the patent is using adjusting small hydropower system active power output to grid-connected wind-powered electricity generation Carry out power-balance.A kind of mixing wind light mutual complementing pumped storage and its control method (Chinese patent application, application number: 201110300964.4), which is: traditional wind-light complementary system energy storage device --- battery group is sent out with water-storage Electric system replaces, and is drawn water or generated electricity using Reversible Pump-Turbine in pumped-storage units, and applies sectional integration method pair 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 in network load low ebb, when load peak, generate electricity. Its stable output power that generates electricity, does not cause to impact to bulk power grid.When honourable micro-capacitance sensor access bulk power grid, the unstable row of power It will cause certain impact to power grid.In conjunction with pumped-storage power generation advantage, a kind of honourable water-storage micro-capacitance sensor is proposed, Core is: the electric energy of wind and light generating system is not transported in bulk power grid, all electric energy be used for water-storage, pumping system by Common exchange pump group and Reversible Pump-Turbine group, pipeline, lower pond 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 are converted to electric energy, convey regulated power to bulk power grid by boosting. The advantages of invention, is to have evaded the natural limitation of scene, improves the utilization of wind and light generating system, is drawn water storage by adjusting The method of energy electricity generation system, can convey reliable and stable controllable electric energy to bulk power grid.
Summary of the invention
The defect of gas-to electricity inefficiency is caused by natural cause for wind-powered electricity generation electric energy intermittence characteristic and photovoltaic power generation, The object of the present invention is to provide a kind of wind-powered electricity generation photovoltaic micro pumped storage system, which can be ignored wind-powered electricity generation, photovoltaic Bring power quality problem, the utilization renewable energy of maximal efficiency, improve capacity factor and output electric energy it is controllable and to Bulk power grid provides reliable, controllable, stable electric energy.
In order to realize that above-mentioned task, the present invention take following technical solution:
A kind of wind-powered electricity generation photovoltaic micro pumped storage system, which is characterized in that the system includes micro-capacitance sensor direct current Bus, ac bus, system controller, photovoltaic power generation subsystem, DC-DC controller, capacitance switch group, super capacitor group, storage Energy storage device group, bi-directional DC-DC controller, wind-power electricity generation subsystem, AC-DC controller, DC-AC controller, pump switch group, Water pump assembly, switching switching group, reversible water turbine set, investment switching group, generating set, water turbine set, booster stations and bulk power grid, Wherein:
Photovoltaic power generation subsystem and wind-power electricity generation subsystem pass through DC-DC controller and AC-DC controller and micro- electricity respectively The connection of net DC bus;Energy storage battery group is also connected in micro-capacitance direct current bus by bi-directional DC-DC controller;Micro-capacitance sensor DC bus also passes through capacitance switch group connection super capacitor group;
Micro-capacitance direct current bus is also connected with DC-AC controller, and DC-AC controller passes through pump switch group and switching switching group It is separately connected water pump assembly and reversible water turbine set;Water pump assembly and reversible water turbine set are lauched dykes and dams by pipeline access respectively In water;
Ac bus by booster stations connect bulk power grid, ac bus by investment switching group be connected in series generating set and Water turbine set;Ac bus is also connected with switching switching group;
System controller be separately connected DC-DC controller, capacitance switch group, AC-DC controller, bi-directional DC-DC controller, DC-AC controller, investment switching group, pump switch group and switching switching group.
Photovoltaic power generation subsystem according to the present invention is photovoltaic array group.
Water pump in the water pump assembly is all made of three-phase alternating current water pump.
Wind-powered electricity generation photovoltaic micro pumped storage system of the invention, wind-power electricity generation subsystem therein reach in wind speed After it is required that can maximum power tracing control generate electricity, photovoltaic power generation subsystem also carries out maximum power tracing control, wind-force Power generation sub-system is connected by DC-DC controller with micro-capacitance direct current bus by AC-DC controller, photovoltaic power generation subsystem, By control super capacitor group and energy storage battery group, water supply pump assembly provides stable electric energy, after water pump assembly obtains electric energy It draws water to upper water dykes and dams, for upper water dykes and dams by water wheels, generating set power generation under control system regulation, water wheels, generating set are electric It is incorporated into bulk power grid after capable of being boosted by booster stations.Its course of work is:
After wind speed reaches threshold wind velocity, wind-power electricity generation subsystem starts and issues alternating current, and AC-DC controller carries out most High-power Tracing Control, by AC-DC controller, power flow micro-capacitance direct current bus, photovoltaic array mass-sending electricity passes through DC- DC converter, connect with micro-capacitance direct current bus, jointly to super capacitor group, energy storage battery group, water pump assembly output electric energy;
Super capacitor group is connected directly between in micro-capacitance direct current bus, the switching switched by capacitance group, straight to micro-capacitance sensor The voltage fluctuation of stream bus is smoothed.Energy storage battery group mainly to all electrical secondary systems of micro-capacitance direct current bus into Row standby energy storage for power supply, micro-capacitance direct current bus charges to energy storage battery group by bidirectional DC-DC converter, while working as micro- electricity When net DC bus power lacks, energy storage battery provides electric energy to micro-capacitance direct current bus by bidirectional DC-DC converter.It is micro- Power grid DC bus is converted into exchange water supply pump assembly power supply by DC-AC.Micro-capacitance direct current bus is given by DC-AC controller Control system power supply, while giving the equipment power supply such as illumination communication.Reversible water turbine set by switching switch with DC-AC and exchange mother Line connection, water pump assembly are connect by pump switch with DC-AC.System controller and DC-DC controller, capacitance switch group, AC- DC controller, bi-directional DC-DC controller, DC-AC controller, investment switching group, pump switch group and switching switching group keep logical News exchange information, obtain wind-power electricity generation subsystem, photovoltaic power generation subsystem and upper and lower water level information, and system controller obtains After these information, intelligent management, micro-capacitance direct current bus electric energy preferentially supplies water pump assembly and draws water, when micro-capacitance sensor direct current is female When line electric energy constantly increases, reversible water turbine set is changed by water pump mode by switching switch and puts into water-storage.Upper water dykes and dams Water level information judgement, it is preferential to put into turbine-generator units power generation, when water level increases or bulk power grid scheduling is more than hydraulic generator Outside the amount of machine group, reversible water turbine set is gradually changed by switching switch by power generation mode investment.Turbine-generator units and Reversible water turbine set is transported to booster stations by ac bus, and booster stations boost to certain voltage and bulk power grid phase by transformer Even.
The supercapacitor group of micro-capacitance direct current bus carries out dynamic transient power-balance, and energy storage battery group carries out in short-term Power-balance makes water pump assembly, reversible water turbine set, turbine-generator units can to guarantee micro-capacitance direct current bus voltage stabilization With safe operation and safe shutdown.
The start and stop of generating set are controlled by system controller, to ac bus cutting-in control by its own control device Control, stably and controllable electric energy is provided to bulk power grid.
Wind-powered electricity generation photovoltaic micro pumped storage system of the invention, has the advantages that compared with prior art
Maximal efficiency uses wind-power electricity generation subsystem, photovoltaic power generation subsystem renewable energy, reduces intermittent nature to electricity The influence of network electric energy quality, the electric energy that wind-power electricity generation subsystem, photovoltaic power generation subsystem generate are completely used for water-storage, waterpower Electricity generation system provides power grid controllable, reliable and stable electric energy.
Wind-power electricity generation subsystem and photovoltaic power generation subsystem in system all can maximum power operation control, guarantee maximum energy Amount obtains, without considering system power balance and power quality problem.Therefore fortune will not be limited because of grid power quality problem Row.System uses micro-capacitance direct current bus structure, easy to accomplish with the Power Exchange technology of each unit.
It is provided with supercapacitor group in micro-capacitance direct current bus, controls several pairs of micro-capacitance direct current bus voltages of its investment group It carries out smoothly, bus voltage being kept to stablize.
Whole electric energy of reversible water turbine set, water pump assembly, generating set, micro-capacitance direct current bus first supply water pump assembly It draws water from dykes and dams are lauched to upper water dykes and dams, when electric energy surplus, starting and switching reversible water turbine set is that water pump mode is taken out Water accumulation of energy;Hydro-generating Unit generates electricity according to system controller regulation and control instruction, when water level is excessively high or demand power exceeds When unit output, switching reversible water turbine set is that power generation mode powers to bulk power grid.
System controller and DC-DC controller, capacitance switch group, AC-DC controller, bi-directional DC-DC controller, DC-AC Controller, investment switching group, pump switch group and switching switching group keep in communication and carry out information exchange and control, can keep be It unites stable, simultaneity factor controller carries out intelligent control according to information such as water level, scene, grid side demands, while can be with Receive external dispatch command, meets the overall planning scheduling of area power grid.
Detailed description of the invention
Fig. 1 is wind-powered electricity generation photovoltaic micro pumped storage system structural schematic diagram of the invention.
Label in figure respectively indicates: 1, micro-capacitance direct current bus, 2, ac bus, 3, system controller, 4, photovoltaic hair Electronic system, 5, DC-DC controller, 6, capacitance switch group, 23, super capacitor 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 machine Group, 14, switching switching group, 15, reversible water turbine set, 16, be lauched dykes and dams, 17, investment switching group, 18, generating set, 19, general Logical 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.
Specific embodiment
Mentality of designing of the invention focuses on, and is used for water-storage, pumped storage with the electric energy of wind-powered electricity generation photovoltaic Contain three classes unit: common water pump assembly, reversible water turbine set and common hydro-generating Unit, unit need system control All information of device intelligent interpretation system carry out start and stop.
Referring to figure 1, the present embodiment provides a kind of wind-powered electricity generation photovoltaic micro pumped storage system, the system packet Micro-capacitance direct current bus 1, ac bus 2, system controller 3, photovoltaic power generation subsystem 4, DC-DC controller 5, capacitor has been included to open Pass 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 switching group 14, reversible water turbine set 15, investment switch Group 17, generating set 18, common water turbine set 19, booster stations 21 and bulk power grid 22, in which:
Photovoltaic power generation subsystem 4 and wind-power electricity generation subsystem 9 respectively by DC-DC controller 5 and AC-DC controller 10 with Micro-capacitance direct current bus 1 connects;Energy storage battery group 7 is also connected to micro-capacitance direct current bus 1 by bi-directional DC-DC controller 8 On;Micro-capacitance direct current bus 1 also connects super capacitor group 23 by capacitance switch group 6;
Micro-capacitance direct current bus 1 is also connected with DC-AC controller 11, and DC-AC controller 11 is by pump switch group 12 and cuts It changes switching group 14 and is separately connected water pump assembly 13 and reversible water turbine set 15;Water pump assembly 13 and reversible water turbine set 15 lead to respectively Piping access is lauched in 16 water of dykes and dams;
Ac bus 2 connects bulk power grid 22 by booster stations 21, and hair is connected in series by investment switching group 17 in ac bus 2 Motor group 18 and common water turbine set 19;Ac bus 2 is also connected with switching switching group 14;
System controller 3 is separately connected DC-DC controller 5, capacitance switch group 6, AC-DC controller 10, bi-directional DC-DC control Device 8, DC-AC controller 11, investment switching group 17, pump switch group 12 and switching switching group 14 processed.
In the present embodiment, photovoltaic power generation subsystem 4 selects photovoltaic array group.
Water pump in water pump assembly 13 is all made of three-phase alternating current water pump.
Capacitance switch group 6 described in the present embodiment, super capacitor group 23, energy storage battery group 7, pump switch group 12, Water pump assembly 13, switching switching group 14, reversible water turbine set 15, investment switching group 17, generating set 18, common water turbine set 19, " group " therein indicates to contain several identical components, such as includes several capacitance switch in capacitance switch group 6, commonly It include several hydraulic turbines etc. in water turbine set 19, " ... " label is used in figure to be indicated.
After wind speed reaches threshold wind velocity, wind-power electricity generation subsystem 9 starts and issues alternating current, by AC-DC controller 10 are connected with micro-capacitance direct current bus 1, and photovoltaic power generation subsystem 4 is connect by DC-DC controller 5 with micro-capacitance direct current bus 1, Electric energy is exported to super capacitor group 23, energy storage battery group 7, water pump assembly 13 and reversible water turbine set 15 jointly.
Energy storage battery group 7 is connect by DC-DC controller with micro-capacitance direct current bus, when wind-power electricity generation subsystem and light When volt power generation sub-system output is almost nil, electric energy is provided to micro-capacitance direct current bus in short-term, guarantees water pump assembly, reversible water wheels Unit, turbine-generator units safe shutdown.
Super capacitor group 23 is connected in micro-capacitance direct current bus 1 by capacitance group switch, can be female to micro-capacitance sensor direct current The transient voltage fluctuation of line 1 is balanced.
Micro-capacitance direct current bus 1 charges to battery pack by controllable bidirectional DC-DC converter 8, while when 1 electricity of DC bus When pressure falls serious, energy storage battery group 7 discharges to micro-capacitance direct current bus 1 by bi-directional DC-DC controller 8, keeps voltage In permissible value range.
Water pump assembly 13 is all made of three-phase alternating current water pump, and micro-capacitance direct current bus 1 is converted by controllable DC-AC controller 11 For the power supply of alternating current water supply pump assembly 13, draw water from dykes and dams 16 are lauched to upper water dykes and dams 20.
Water pump assembly 13 carries out intelligent decision by system controller device, and the number of investment water pump is controlled by pump switch group 12 Amount:
When the supply of 1 power of micro-capacitance direct current bus is beyond 13 load of water pump assembly, pass through switching with DC-AC controller 11 Switching group 14 is connected to reversible water turbine set 15, controls switching switching group 14 by system controller 3, switches reversible water turbine set 15 In one or several to draw water mode, drawn water by being lauched dykes and dams 16 to upper water dykes and dams 20.
Reversible water turbine set 5 is connected to pumped-storage power generation subsystem ac bus 2, generator by switching switching group 14 Group 18, common water turbine set 19 are connected to ac bus 2, pumped-storage power generation subsystem ac bus by putting into switching group 17 2 are powered by booster stations 21 to bulk power grid 23.
System controller 3 acquires DC-DC controller 5, capacitance switch group 6, AC-DC controller 10, bi-directional DC-DC controller 8, DC-AC controller 11, investment switching group 17, pump switch group 12 and switching switching group 14 and micro-capacitance direct current bus, friendship Bus, the water level information of bulk power grid, electric network information, dispatching of power netwoks instruction etc. are flowed, guarantees that the input voltage of water pump assembly is allowing It is worth range to stablize, control investment switching group 17 puts into common water turbine set 19 and generates electricity, generating set 18 passes through ac bus 2 are transported to booster stations 21, when water level is excessively high or grid side demand is excessive, by control switch switching group 14, switching one or Several reversible water turbine sets 15 are power generation mode, grid-connected on ac bus 2 by switching switching group 14, when upper 20 water of water dykes and dams When position is too low, system controller 3 is gradually cut off according to the sequence of reversible water turbine set 15 to turbine-generator units 19, when being lauched dike When 16 water level of dam is too low, system controller 3 is gradually cut off according to the sequence of reversible water turbine set 15 to water pump assembly 13.

Claims (2)

1. a kind of wind-powered electricity generation photovoltaic micro pumped storage system, which is characterized in that the system includes that micro-capacitance sensor direct current is female Line (1), ac bus (2), system controller (3), photovoltaic power generation subsystem (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 switching group (14), can be against the current Take turns unit (15), investment switching group (17), generating set (18), common water turbine set (19), booster stations (21) and bulk power grid (22), in which:
Photovoltaic power generation subsystem (4) and wind-power electricity generation subsystem (9) pass through DC-DC controller (5) and AC-DC controller respectively (10) it is connect with micro-capacitance direct current bus (1);Energy storage battery group (7) is also connected to micro- electricity by bi-directional DC-DC controller (8) On net DC bus (1);Micro-capacitance direct current bus (1) also passes through capacitance switch group (6) connection super capacitor group (23);
Micro-capacitance direct current bus (1) is also connected with DC-AC controller (11), and DC-AC controller (11) passes through pump switch group (12) Water pump assembly (13) and reversible water turbine set (15) are separately connected with switching switching group (14);Water pump assembly (13) and reversible water wheels Unit (15) is lauched in dykes and dams water by pipeline access respectively;
Ac bus (2) passes through investment switching group (17) series connection by booster stations (21) connection bulk power grid (22), ac bus (2) Connect generating set (18) and common water turbine set (19);Ac bus (2) is also connected with switching switching group (14);
System controller (3) is separately connected DC-DC controller (5), capacitance switch group (6), AC-DC controller (10), two-way DC- DC controller (8), DC-AC controller (11), investment switching group (17), pump switch group (12) and switching switching group (14);
Water pump in the water pump assembly is all made of three-phase alternating current water pump.
2. wind-powered electricity generation photovoltaic micro pumped storage system as described in claim 1, which is characterized in that the photovoltaic hair Electronic system (4) is photovoltaic array group.
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