CN102116244B - Wind-light supplementary power generating energy storing device - Google Patents

Wind-light supplementary power generating energy storing device Download PDF

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Publication number
CN102116244B
CN102116244B CN2011100484218A CN201110048421A CN102116244B CN 102116244 B CN102116244 B CN 102116244B CN 2011100484218 A CN2011100484218 A CN 2011100484218A CN 201110048421 A CN201110048421 A CN 201110048421A CN 102116244 B CN102116244 B CN 102116244B
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CN
China
Prior art keywords
wind
storage
water
load
pumped
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CN2011100484218A
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Chinese (zh)
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CN102116244A (en
Inventor
任岩
郑源
李正勇
陈德新
李延频
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河海大学
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    • 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
    • Y02E10/22Conventional, e.g. with dams, turbines and waterwheels
    • 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
    • Y02E10/725Generator or configuration
    • 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 or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/17Pumped storage
    • 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
    • Y02P80/156Efficient use of energy in fluid distribution systems
    • Y02P80/158Solar or wind-powered water pumping not specially adapted for irrigation

Abstract

The invention discloses a wind-light supplementary power generating energy storing device which comprises a wind machine, a photovaltaic array, a controller and a storage battery, wherein the wind machine, the photovaltaic array and the storage battery are all connected with the controller; the controller is connected with a pumped storage power generation device which comprises a lower reservior, an upper reservior and a pipeline used for connecting the upper reservior with the lower reservior; the pipeline is provided with a reversiable water pump turbine; and the reversiable water pump turbine is provided with a first working condition that the water in the lower reservior is pumped into the upper reservior and a second working condition that the water in the upper reservior flows into the lower reservior. Compared with the prior art, the energy storing device provided by the invention has the advantages that pumped storage can be used for partially replacing a storage battery for energy storing, the defects such as short service life, high cost, pollution and the like of the storage battery are overcome, simultaneously the reliability and stability of a system can be improved, and the device is environment-friendly.

Description

The wind light mutual complementing power generation energy storage device

Technical field

The present invention relates to technical fields such as wind light mutual complementing technology, wind generating technology, solar energy generation technology, pumped storage technology, desalination technology, high efficiency smart control technique, specifically is the complementary electricity generating device that combines with pumped storage of a kind of wind-power electricity generation and solar electrical energy generation.

Background technique

On a lot of remote islands of China; Electrical network is difficult to arrive, and most of areas adopts diesel power generation, along with the shortage of oil and the rise of oil price; Cost of electricity-generating rapidly goes up, the daily life that electric energy in short supply serious restricted these regional economic developments and resident or garrisoned.And often there is abundant renewable energy sources in these areas, like solar energy, wind energy etc., for solving electricity consumption from far-off regions good genetic prerequisite are provided.To these situation, present island adopts wind-light complementary system to supply power more.

Wind-light complementary system mainly partly is made up of wind power generating set, solar-energy photo-voltaic cell group, controller, storage battery, inverter, AC/DC load etc., and system construction drawing is seen accompanying drawing 1.1. wind-power electricity generation partly is to utilize wind energy conversion system to convert wind energy into mechanical energy, converts mechanical energy into electric energy through wind-driven generator, passes through controller again to charge in batteries, and the process inverter is to electric; 2. photovoltaic generation partly utilizes the photovoltaic effect of solar panel that transform light energy is electric energy, then to charge in batteries, converts direct current into Ac through inverter load is supplied power; 3. inversion system is made up of one or several inverters, becomes the 220V Ac of standard to the direct current in the storage battery, guarantees the normal use of AC load equipment.Also have the automatic voltage regulation function simultaneously, can improve the power supply quality of wind and solar hybrid generating system; 4. control section is according to the variation of intensity of sunshine, wind-force size and load, constantly the working state of battery pack switched and regulated: one side directly is sent to direct current or AC load to adjusted electric energy.Be sent to the battery pack storage to unnecessary electric energy on the other hand.When generated energy can not satisfy need of load, controller was sent to load to the electric energy of storage battery, had guaranteed the continuity and the stability of whole system work; 5. the storage battery part is made up of the polylith storage battery, in system, plays energy adjustment and balanced load two simultaneously and acts on greatly.It is converted into chemical energy with the electric energy of wind-power generating system and photovoltaic generating system output and stores, and uses during in order to electricity shortage.In present wind-light complementary system, generally adopt the storage battery accumulation of energy, but the life of storage battery is short, cost is high, pollution is arranged, and store electrical energy in a large number.

Summary of the invention

Technical problem:Technical problem to be solved by this invention is the deficiency to above-mentioned existing technology, and provides a kind of ability permanent storage more macro-energy and free of contamination wind light mutual complementing power generation energy storage device.

Technological scheme:For solving the problems of the technologies described above; The technological scheme that the present invention adopts is: a kind of wind light mutual complementing power generation energy storage device; Comprise wind energy conversion system; Photovoltaic array, controller and storage battery; Described wind energy conversion system, photovoltaic array and storage battery all are connected with described controller, it is characterized in that: on described controller, also be connected with a pumped-storage power generation device, this pumped-storage power generation device comprises lower storage reservoir, upper storage reservoir and the pipeline that connects this upper storage reservoir and lower storage reservoir; This pipeline is provided with Reversible Pump-Turbine, and this Reversible Pump-Turbine has water with described lower storage reservoir and is drawn into first operating mode in the described upper storage reservoir and said upper storage reservoir flow to second operating mode that lower storage reservoir is used to generate electricity under water.

On described controller, also be connected with sea water desalinating unit; This sea water desalinating unit comprises: water tank, feed water pump, more medium filter, security personnel's filter, high-pressure service pump, reverse osmosis membrane assembly, product water tank and pipeline; Water tank, more medium filter, security personnel's filter, reverse osmosis membrane assembly, product water tank are connected through described pipeline successively; Described feed water pump one end is connected with water tank; The other end is connected with described more medium filter, and described high-pressure service pump is arranged on the seawater side of described reverse osmosis membrane assembly.

Pumped storage system of the present invention is store electrical energy in a large number; And startup rapidly, climbing off-load speed is fast, flexible operation is reliable; Can peak clipping can fill out paddy again; The flexibility of its fast transition can remedy the randomness and the nonuniformity of wind-power electricity generation and solar electrical energy generation, for system provides more peak-clipping and valley-filling capacity and frequency modulation, phase modulation, emergency episode standby power supply etc., has advantages such as the reliable and environmental protection of energy production simultaneously.Therefore, the present invention combines pumped storage dexterously with wind-light complementary system, can replace storage battery that whole system is carried out energy storage on the one hand, has also improved the stability of whole system on the other hand.Still be equipped with the storage battery of small capacity in the system, be used for bearing transient peak loading, increased the stability of system.Simultaneously, to the problem that lacks fresh water in the island, this systems incorporate sea water desalinating unit, a load as this system has solved the problem of island with fresh water effectively.

The present invention carries out complemental power-generation with wind energy and solar energy effectively, has remedied the intermittence and the unstability of wind energy and solar energy.Simultaneously; Pumped storage power station is combined with wind-power electricity generation and solar electrical energy generation; When the wind-powered electricity generation in system and solar electrical energy generation are supplied with load unnecessary electric energy are arranged; Utilize the pump operating condition of Reversible Pump-Turbine to draw water, the water of lower storage reservoir is extracted into upper storage reservoir, unnecessary electric energy is become water can store; When wind-powered electricity generation and solar electrical energy generation supply load electric energy deficiency; Utilize the water turbine operating mode of Reversible Pump-Turbine to generate electricity; Water can be become electric energy, supply with the load electricity consumption, wind-power electricity generation and solar electrical energy generation and pumped storage power station are combined; Store electrical energy in a large number, and improved the stability of system.With the part of sea water desalinating unit, can fresh water be provided to the resident as system load.

Beneficial effect:To problems such as remote island conventional energy resource scarcity, shortage electric energy and fresh water, utilize apparatus of the present invention, can not only effectively utilize local abundant wind energy and solar energy resources, solve local electric energy problem in short supply, and can fresh water be provided for the local resident.Native system is stable, environmental protection, and operating cost is low.

Description of drawings

Fig. 1 is existing wind-light complementary system structural drawing.

Fig. 2 is a pumped storage device schematic representation of the present invention.

Fig. 3 is sea water desalinating unit figure of the present invention.

Fig. 4 is apparatus of the present invention connection diagrams.

Embodiment

Pumped storage power station comprises Reversible Pump-Turbine (two operating modes being arranged, pump operating condition and water turbine operating mode), upper storage reservoir, lower storage reservoir, and its schematic representation is shown in accompanying drawing 2.In the load valley phase, Reversible Pump-Turbine operates in pump operating condition, utilizes unnecessary electric energy that the water of lower storage reservoir is extracted into upper storage reservoir, and electric energy is become water can store; At load boom period, Reversible Pump-Turbine operates in the water turbine operating mode, and the level difference generation of lower storage reservoir in the utilization can become water into electric energy.

Reverse osmosis membrane is adopted in desalination of sea water, and its installation drawing is shown in accompanying drawing 3.Device is made up of water intake system, feed water pump, more medium filter, security personnel's filter, high-pressure service pump, reverse osmosis membrane assembly, energy recycle device, product water tank and pipeline.Utilize water intake system to extract seawater, utilize feed water pump that seawater is delivered to filter, after more medium filter and security personnel's filter filter; Give reverse osmosis membrane assembly, utilize the pressure of high-pressure service pump increase seawater side, be pressed onto the water molecule in the seawater opposite side of permeable membrane; Produce fresh water, deliver to the product water tank, wherein; Energy recycle device can effectively reclaim the energy in the desalting process, reaches energy-saving effect.Utilize this device can desalinating sea water into fresh water be can be used for domestic water.

Working principle:Apparatus of the present invention are as shown in Figure 4.This device comprises the connection set between wind energy conversion system, solar energy photovoltaic array, Reversible Pump-Turbine, upper storage reservoir, lower storage reservoir, sea water desalinating unit, controller, inverter, AC load, DC load and the said equipment.Wind energy conversion system becomes wind energy into electric energy.The solar energy photovoltaic array becomes solar energy into electric energy.Reversible Pump-Turbine has two operating modes, water turbine operating mode and pump operating condition: operate in the water turbine operating mode water-head that goes up lower storage reservoir capable of using and generate electricity, water can be become electric energy; Operating in pump operating condition can draw water, and the water of lower storage reservoir is extracted into upper storage reservoir, and electric energy is become water can be held, and can carry out the conversion between the operating mode through controller.Sea water desalinating unit can be with desalinating sea water into fresh water.Inverter becomes direct current into Ac, supplies with AC load.Controller can be controlled the inclination angle of the running state of wind energy conversion system, solar energy photovoltaic array, charging and discharging of accumulator, the operating mode of Reversible Pump-Turbine, the state of sea water desalinating unit.AC load and DC load can be configured according to user's needs, like electric light, TV, sound equipment, refrigerator, water heater etc.Data acquistion system is gathered each equipment running and parameter in the system, to mobilizing system data is provided.

Controller is supplied with DC load according to the inclination angle of wind speed and solar radiation control wind energy conversion system running state and photovoltaic array with electric energy, through inverter direct current is become Ac and supplies with AC load, supplies with the sea water desalinating unit electricity consumption simultaneously.Controller is according to the comparison between wind-power electricity generation amount and solar electrical energy generation amount sum and the load (comprising DC load, AC load and sea water desalinating unit); Judge whether electric weight can satisfy the load needs, if satisfy and unnecessary electric energy is arranged, then controller is judged the state of storage battery; If storage battery is in under-voltage condition; Then charge a battery, if when storage battery is full of electricity, wind energy conversion system and photovoltaic array electricity can still have residue; The Reversible Pump-Turbine of then controlling pumped storage power station operates in pump operating condition and draws water, and the water of lower storage reservoir is extracted into upper storage reservoir; If wind-power electricity generation amount and solar electrical energy generation amount can not satisfy the load needs, the Reversible Pump-Turbine of then controlling pumped storage power station operates in the water turbine operating mode and generates electricity, and supplies with load.

The present invention adopts three big advantages of pumped storage device: the one, and energy storage, the unnecessary electrical power storage that is about to wind-powered electricity generation and solar electrical energy generation is got up; The 2nd, peak regulation promptly according to the load variations situation, is adjusted the Hydropower Unit frequency in advance, and system is carried out peak regulation; The 3rd, frequency modulation promptly according to the variation of system frequency, when the normal range (NR) of system frequency overshoot, increases or reduces exerting oneself of Hydropower Unit, thereby reach new balance, the change of frequency of system is limited in certain scope, thereby maintenance system is stable.The function of energy storage can make full use of wind energy resources and solar energy resources; Peak regulation and frequency modulation have utilized Hydropower Unit start and stop characteristics rapidly.

The present invention improves on the basis of original wind-light complementary system, replaces storage battery with pumped storage power station, has increased the electric power storage ability on the one hand, has also increased the stability of system on the other hand; In system, dispose sea water desalinating unit, make system can not only satisfy islander's electricity consumption, and fresh water can be provided; Simultaneously, the present invention can utilize island abundant wind energy and solar energy this two kinds of renewable energy sourcess and clean energy resource, has not only practiced thrift conventional energy resource, and changes and protect.

Claims (1)

1. wind light mutual complementing power generation energy storage device; Comprise wind energy conversion system; Photovoltaic array, controller, inverter, AC load, DC load and storage battery; Described wind energy conversion system, photovoltaic array and storage battery all are connected with described controller; It is characterized in that: on described controller, also be connected with a pumped-storage power generation device; This pumped-storage power generation device comprises lower storage reservoir, upper storage reservoir and the pipeline that connects this upper storage reservoir and lower storage reservoir, and this pipeline is provided with Reversible Pump-Turbine, and this Reversible Pump-Turbine has water with described lower storage reservoir and is drawn into first operating mode in the described upper storage reservoir and said upper storage reservoir flow to second operating mode that lower storage reservoir is used to generate electricity under water; On described controller, also be connected with sea water desalinating unit; This sea water desalinating unit comprises: water tank, feed water pump, more medium filter, security personnel's filter, high-pressure service pump, reverse osmosis membrane assembly, energy recycle device, product water tank and pipeline; Water tank, more medium filter, security personnel's filter, reverse osmosis membrane assembly, product water tank are connected through described pipeline successively; Described feed water pump one end is connected with water tank; The other end is connected with described more medium filter, and described high-pressure service pump is arranged on the seawater side of described reverse osmosis membrane assembly; Controller is supplied with DC load according to the inclination angle of wind speed and solar radiation control wind energy conversion system running state and photovoltaic array with electric energy, through inverter direct current is become Ac and supplies with AC load, supplies with the sea water desalinating unit electricity consumption simultaneously; Controller is simultaneously according to wind-power electricity generation amount and solar electrical energy generation amount sum and comprise the comparison between the load of DC load, AC load and sea water desalinating unit; Judge whether electric weight can satisfy the load needs, if satisfy and unnecessary electric energy is arranged, then controller is judged the state of storage battery; If storage battery is in under-voltage condition; Then charge a battery, if when storage battery is full of electricity, wind energy conversion system and photovoltaic array electricity can still have residue; The Reversible Pump-Turbine of then controlling pumped storage power station operates in pump operating condition and draws water, and the water of lower storage reservoir is extracted into upper storage reservoir; If wind-power electricity generation amount and solar electrical energy generation amount can not satisfy the load needs, the Reversible Pump-Turbine of then controlling pumped storage power station operates in the water turbine operating mode and generates electricity, and supplies with load; Said pumped-storage power generation device can get up the unnecessary electrical power storage of wind-powered electricity generation and solar electrical energy generation; Said pumped-storage power generation device can be adjusted the Hydropower Unit frequency in advance according to the load variations situation, and system is carried out peak regulation; Said pumped-storage power generation device can be according to the variation of system frequency; When the normal range (NR) of system frequency overshoot, increase or reduce exerting oneself of Hydropower Unit, thereby reach new balance; The change of frequency of system is limited in certain scope, thereby maintenance system is stable.
CN2011100484218A 2011-03-01 2011-03-01 Wind-light supplementary power generating energy storing device CN102116244B (en)

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CN102624287A (en) * 2012-04-06 2012-08-01 常熟市福莱德连接器科技有限公司 Solar-energy photovoltaic power generation system used for elevated highway
CN102748196A (en) * 2012-07-07 2012-10-24 浙江永昌仪表有限公司 Reflux water pumping hydroelectric generation device
CN102801157B (en) * 2012-07-24 2013-07-10 江苏省电力设计院 Wind and photovoltaic complementary power generation system reliability evaluation method based on Copula theory
CN102797616B (en) * 2012-07-30 2015-05-13 吉林省电力有限公司辽源供电公司 Multifunctional independent power plant capable of realizing all-weather stable power supply by comprehensively utilizing various kinds of natural energy
CN104762937B (en) * 2015-02-16 2016-08-24 浙江水利水电学院 A kind of pumped-storage power station being applied to ecological reservoir and sewage water treatment method thereof
CN105024627A (en) * 2015-08-06 2015-11-04 新疆工程学院 Combined power generation system used in desert environment
CN105589331B (en) * 2016-01-06 2017-04-19 河海大学 Energy management method of wind-solar-pumping and storage-desalination combined system
CN105650796A (en) * 2016-03-17 2016-06-08 苏州风格机电安装工程有限公司 Unpowered ventilation system
CN105937477B (en) * 2016-06-07 2018-12-14 长安大学 A kind of wind-powered electricity generation photovoltaic micro pumped storage system
CN107317355A (en) * 2017-07-04 2017-11-03 中国矿业大学 A kind of pump-up power station joint wind-light complementary system and its optimization method
CN107337289A (en) * 2017-07-07 2017-11-10 河海大学 A kind of reverse osmosis desalination device for integrating wind energy luminous energy and seawater accumulation of energy
CN107846079A (en) * 2017-11-24 2018-03-27 佛山市洛克威特科技有限公司 A kind of stable controller of pump-storage generator
CN109192038A (en) * 2018-10-04 2019-01-11 三峡大学 It is a kind of suitable for impart knowledge to students with the multipotency ecosystem experiment porch of scientific research

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