CN101782049A - Large-capacity gravity energy storage device for power station - Google Patents
Large-capacity gravity energy storage device for power station Download PDFInfo
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- CN101782049A CN101782049A CN201010105671A CN201010105671A CN101782049A CN 101782049 A CN101782049 A CN 101782049A CN 201010105671 A CN201010105671 A CN 201010105671A CN 201010105671 A CN201010105671 A CN 201010105671A CN 101782049 A CN101782049 A CN 101782049A
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Abstract
The invention discloses a large-capacity gravity energy storage device for a power station, which comprises a counterweight body, a support device, a power lifting device and a power generation device, wherein the counterweight body is used for being lifted to high altitude and further converting electric energy to gravitational potential energy increased by the counterweight body; the support device comprises a support pillar and a cross beam erected on the support pillar; the power lifting device at least comprises a motor, a winding wheel shaft driven by the motor, a pulley arranged above the counterweight body and a pull cable, wherein the middle part of the pull cable bypasses the pulley, one end of the pull cable is fixed on the support device, and the other end is fixed on the winding wheel shaft; and the power generation device comprises a power generator, and the power generator is connected with the winding wheel shaft through a transmission part, thereby converting the gravitational potential energy of the counterweight body to the electric energy. Compared with the prior art, the large-capacity gravity energy storage device has the advantages of large-capacity energy storage, high energy density, small occupied space, high energy recycling efficiency, small limitation, a wide range of applications, no pollution, low investment, low operation cost and the like.
Description
Technical field
The present invention relates to the energy storage technology field, particularly relate to a kind of large-capacity gravity energy storage device for power station.
Background technique
Electric energy has can mass production, be converted to other form energies easily, be convenient to remote conveying, centralized management, measure and advantage such as control automatically, is widely used in human lives and social production activity.But the application of electric power has a very big shortcoming, promptly can't store in a large number with the electric energy form under the technical specifications at present, and generated energy in the electrical network and power load must balances.And the demand of electric power is extremely uneven, spring, summer, autumn, winter, round the clock between, Working day and festival and holiday electricity needs differ greatly.Load time to time change in the electric power system, electric load is made of national economy and social every profession and trade power load, as the primary ,secondary and tertiary industries, heavy industry, light industry, transportation, commerce, agricultural and household electricity load is arranged wherein.Various power loads all had its Changing Pattern separately in one day, as quantity-produced heavy industry and light industry, evening peak and back low ebb at night load then appear in balanced substantially at 24 (16) h load, commercial, household electricity.All kinds of power loads are again with changing season, as refrigeration-heating air-conditioner, electric heating, illumination etc. in 1 year.
Thermal power generation and nuclear energy power generation have energy density height, stable, the characteristics that open and close inconvenience, and power load exist between every day peak and low valley and with season etc. in year be the peak and low valley phenomenon in cycle, both not exclusively mate, and must form the situation of electricity shortage or power supply capacity surplus.Generating such as wind-powered electricity generation, photovoltaic has randomness, discontinuous, unstable, characteristics that energy density is low, solar energy, the abundant district of wind energy resources are usually away from population, areal of industrial concentration, not not matching on the ubiquity time and space between generating and the electricity consumption, distance on the space can lean on high-tension power transmission and transformation equipment to solve, and the time-related imbalance that then needs large-scale energy storage facility will generate electricity between the electricity consumption that do not match remedies.
How big capacity, low cost, high efficiency, high-reliability ground stores interim superfluous electric power is a difficult problem always, the backwardness of energy storage technology will restrict the extensive use of clean energy resourcies such as wind-powered electricity generation, photovoltaic generation greatly, also can cause the decrease in efficiency of conventional power generation systems such as thermoelectricity, nuclear power, be unfavorable for energy-saving and emission-reduction.The mankind have developed various power storage methods, as pumped storage power station, chemical cell, ultra-large electric capacity, pressurized air, brine electrolysis, superconducting magnetic or flywheel energy storage or the like.
Pumped storage power station is big capacity accumulation of energy mode, energy circulation efficient 75%, Pumped Storage Power Station Construction needs harsh geographical conditions, need a large amount of water and build the Ba Jianku condition preferably, be subjected to the natural condition restriction more, initial outlay is huge, certain application prospect is arranged, but might destroy environment, migrant, flood farmland and cultural relics and historic sites, influence the ecosystem system, influence widely, some is negative.
The chemical cell energy density is low, the cost height, the technical requirements height, life-span is limited, need are handed over straight conversion, cycle efficiency is on the low side, need some limited special elementses of reserves on earth, in portable electric appts, be widely used, in the future good development prospect arranged also on the traffic tool such as automobile, but be difficult to satisfy the required vast capacity energy storage demand of national key electrical network.
Ultra-large electric capacity has the advantage that superhigh power discharges and recharges, cycle efficiency is high, but energy density is low, needs to hand over straight conversion, can be applied on the automobile by matching battery, but is difficult to satisfy industrial civilian energy storage demand.
Pressurized air, brine electrolysis, superconducting magnetic or flywheel energy etc. all can be applied to special dimension because of characteristics separately, but are difficult to realize other ultra-large industrial civilian energy storage demand of national key electrical network level.
Summary of the invention
Technical problem to be solved by this invention is the present situation at prior art, and a kind of energy storage density height is provided, and floor space is little, capacity controllable, and large-capacity gravity energy storage device for power station applied widely.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: a kind of large-capacity gravity energy storage device for power station comprises:
Balance weight body is converted into the gravitational potential energy that balance weight body increases thereby balance weight body is used to be promoted to the high-altitude with electric energy;
Support device comprises supporting post and is erected at crossbeam on the supporting post;
The electric power lifting device, the electric power lifting device comprises motor at least, by electric motor driven winding wheel shaft, is arranged at the pulley of balance weight body top, the middle part walk around pulley drag-line, drag-line one end is fixed on the support device, the other end is fixed on the winding wheel shaft;
Electricity generating device comprises generator, and generator links to each other with winding wheel shaft through driving component and is converted into electric energy in order to the gravitational potential energy with balance weight body.
Principle of the present invention be with in electrical network or the power station during low power consumption temporary transient superfluous electric power promote balance weight body to certain altitude by motor, the height that promotes depends on the height of supporting post, general height can reach 100 meters to 200 meters, even it is higher, the mode of energy with gravitational potential energy stored, balance weight body is transferred when treating the electricity consumption peak again, thereby gravitational potential energy is discharged, the pushing generator generating is served electrical network with electric power again.Because the proportion of balance weight body can be very big among the present invention, so its energy storage density height, floor space is little, can satisfy other ultra-large industrial civilian energy storage demand of national key electrical network level, and because solid forms that it had, thereby landform do not had ad hoc requirement, convenient to construct.
In order to obtain better technique effect, further technical measures also comprise:
It is the motor/generator integrated machine that above-mentioned motor and generator become one.Make structure simpler, easier for installation.
In fact, electric power lifting device and electricity generating device can be installed in ground or position such as underground, in order to reduce land seizure, on the crossbeam that above-mentioned electric power lifting device and electricity generating device are installed in support device.
The Placement of the output shaft of winding wheel shaft and motor/generator integrated machine has various ways, one of preferred scheme, above-mentioned winding wheel shaft directly links to each other with the output shaft of motor/generator integrated machine, support device also comprises the support pulley, a wherein end of drag-line is fixed in and supports on the pulley, and the other end is walked around the support pulley and is connected on the winding wheel shaft.
Another preferred version, above-mentioned winding wheel shaft is connected through gear train with the output shaft of motor/generator integrated machine, and a wherein end of drag-line is fixed on the crossbeam, and the other end is connected on the winding wheel shaft.
Preferably, above-mentioned balance weight body comprises ballast box and closely is filled in the interior Weighting filler of ballast box.Ballast box makes the use of balance weight body more flexible, and the selection of the Weighting filler in it or replacing are simpler.
The selection of Weighting filler has great flexibility, and for the consideration that improves energy storage density, preferred, the density of above-mentioned Weighting filler is 2 * 10 at least
3Kg/m
3The density of Weighting filler is big more, and energy storage density is high more, and shared land area is more little.
As a rule, soil, sand, stone density are 2-2.5 times of water, and, soil, sand, stone also have and can gather materials on the spot, wide material sources, advantage with low cost, therefore, preferred, above-mentioned Weighting filler is a kind of in soil, sand, the stone or two kinds mixture at least wherein.
Compared with prior art, the present invention has the following advantages:
One, can realize the vast capacity energy storage, the energy density height, take up an area of less, capacity controllable, the accumulate powered operation flexibly, open-close convenient, need not hand over straight conversion, power supply quality height, also can play effects such as frequency modulation phase modulation pressure regulation.Operation management is simple, and maintenance is convenient.National key other energy storage of electrical network level at present has only the pumped storage mode, but the construction condition harshness, uses limitedly, and modes such as chemical cell, ultra-large electric capacity, pressurized air, brine electrolysis, superconducting magnetic or rotational kinetic energy all are difficult to realize the vast capacity energy storage.General soil, sand, stone density are 2-2.5 times of water, and only this is that comparable pumped storage power station is used an en amount energy-accumulating medium less, and ballast box height, lifting height all can artificially design the energy density height in addition.Can utilize terrain and its features etc. to realize more high-energy-density during conditions being possessed.
Two, energy circulation efficient height.Whole process only has motor to promote weight, two actions of weight decline pushing generator generating, the motor technology maturation, be most effective in present all dynamic power machines, be higher than steamer far away, internal-combustion engine, water turbine, steam turbine, wind turbine etc., the unidirectional efficient of motor can be accomplished 98%-99%, add the energy loss that mechanical frictions such as few pulley gear and resistance of air cause, almost no longer there are other energy losses, the complex energy cycle efficiency is expected to reach 90%-95%, even can be to more than 96%, promptly can almost can't harm the lost territory superfluous electric power " pigeonhole " is stored, discharge power supply capacity deficiency when remedying peak of power consumption when needing.And pumped storage power station energy circulation efficient only 75%, brine electrolysis 45%, chemical cell 75%, pressurized air 50%, flywheel 90%, superconducting magnetic 95%, or the like, the also difficult level of efficiency that reaches the manner of other mode cycle efficiencies.
Three, technology maturation, reliable and stable, safety, the life-span is long.With civil engineering, electromechanical engineering mature technology is support, and engineering construction does not have any technical difficulty, and civil engineering can reach more than 100 years projected life, and the maintenance of motor expense is ultralow, and the life-span can reach more than 30 years.With respect to pumped storage power station, do not exist dam break and so on may cause the possibility of heavy losses, risk is controlled.
Four, with respect to pumped storage power station, this device does not need water (be fine as mass with water certainly yet, but can not consume), need not build special geographical conditions such as Ba Jianku, do not flood the arable land, not migrant, do not destroy environment and biotic population, do not destroy cultural relics and historic sites, addressing is flexible.It is reported, 10 of the pumped storage power stations that the whole nation be constructed and put into operation in the end of the year 2004, electric motor power reaches 570.1 ten thousand kW (wherein 600,000 kW are for Hong Kong).20 of pumped storage power stations have been built up to 09 year whole nation, about 1,200 ten thousand kilowatts of electric motor power, 11 of power stations under development, about 1,308 ten thousand kilowatts of total scale.As seen use not extensive because of its narrow limitation.
Five, pollution-free fully.Any pollutants such as the operation process expends a water hardly, do not discharge a gram CO2 or waste gas, waste water, waste residue, poisonous, radiation, flue dust.
Six, less investment, operation cost is low, remarkable in economical benefits, social benefit is huge.Construction investment mainly is the civil engineering, motor, control system of pillar brace etc., and weight material can be gathered materials on the spot, and uses cheap soil, sand, stone to use for a long time, investment economizes very much, payoff period is short, if can carry out the peak valley different pricing of electric power, and then the economic indicator of project itself is just very outstanding.Certainly also need to carry out detailed engineering feasibility study, extraordinary item economic indicator aspect.In addition, for energy-saving and emission-reduction, environmental protection immeasurable huge effect is arranged all.
Seven, widely applicable.1, is suitable as the supporting energy storage facility in all kinds of power stations such as thermoelectricity, nuclear power.Thermoelectricity, nuclear power operate steadily, and open and close inconvenience, and adjusting function is relatively poor, need the operation of tape base lotus, and energy-accumulating power station just can compensate its defect; 2, can rely on the flexible addressing of public electric wire net; 3, do not need the characteristics of water especially to be particularly suitable in the desert, meagrely-populated region such as Gobi desert, wasteland, salt marsh cooperates wind-powered electricity generation, photovoltaic generation to set up energy-accumulating power station.4, also can cooperate other to build energy-accumulating power station as generatings such as wave, morning and evening tides, biomass energies.5, any type of energy, as long as can convert electric power to, promptly available this mode stores, and is not expired, never degenerates.6, can be applied independently in some small-sized special occasions.7, can become the key link that makes up intelligent grid.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
A kind of large-capacity gravity energy storage device for power station comprises:
Balance weight body, balance weight body comprise ballast box 11 and closely be filled in Weighting filler 12 in the ballast box 11, and Weighting filler 12 is mixtures of soil, sand, stone, and its density is 2 * 10
3Kg/m
3Thereby balance weight body is used to be promoted to the high-altitude is converted into the gravitational potential energy that balance weight body increases with electric energy;
Support device comprises supporting post 41 and is erected at crossbeam 42 on the supporting post;
The electric power lifting device, the electric power lifting device comprises the motor/generator integrated machine at least, winding wheel shaft 22 by the driving of motor/generator integrated machine, be arranged at the pulley 23 of balance weight body top, the middle part walk around pulley 23 drag-line 24, drag-line 24 1 ends are fixed on the support device, and the other end is fixed on the winding wheel shaft 22;
Electricity generating device comprises the motor/generator integrated machine, and the motor/generator integrated machine links to each other with winding wheel shaft through driving component and is converted into electric energy in order to the gravitational potential energy with balance weight body.
Electric power lifting device and electricity generating device are installed on the crossbeam 42 of support device.
Because inevitable in actual use more than one group of energy storage device, therefore, winding wheel shaft 22 has adopted following dual mode with the Placement of the output shaft of motor/generator integrated machine in the present embodiment:
Wherein a part of, winding wheel shaft 22 directly links to each other with the output shaft of motor/generator integrated machine, and support device also comprises support pulley 43, and a wherein end of drag-line 24 is fixed in and supports on the pulley 43, and the other end is walked around support pulley 43 and is connected on the winding wheel shaft 22.When needing energy storage, the motor/generator integrated machine drives winding wheel shaft 22 and rotates, thereby with balance weight body
Some is that winding wheel shaft 22 is connected through gear train 5 with the output shaft of motor/generator integrated machine, and a wherein end of drag-line 24 is fixed on the crossbeam 42, and the other end is connected on the winding wheel shaft 22.
Sketch application prospect of the present invention and advantage with instantiation below:
Example one: with Wang Tan thermal power plant, Datang electric power Tangshan is example.4,900,000,000 yuan of Wang Tan power station thes first stage of investment, 2 the 600000 kilowatts of thermal power generation units of installing, existing annual generating 7,600,000,000 degree take up an area of 800 mu.
1 degree=1 kilowatt hour=Jiao 1000*3600=3.6E6.
Press the rated power generating, annual generating 2,*60 ten thousand * 2,4*3,65=,105 hundred million degree, 2,*60 ten thousand * 2,4=2,880 ten thousand degree generate electricity every day.
Real 7,600,000,000 degree that generate electricity in border year, 7,600,000,000 degree/105 hundred million degree=72.4%, promptly actual average power is only used 72.4% of rating value, and 7,600,000,000 degree/365=2082, ten thousand degree generate electricity actual every day.
Be assumed to be the supporting energy storage of one of this power plant construction power plant, maximum can with every day generated energy 10%, promptly 208.2 ten thousand degree are converted into gravitational potential energy and store, according to potential energy formula E=mgh, 208.2 ten thousand * 3.6E6=m*9.8*h suppose that lifting height is 100 meters, m=7.648E9 kilogram=7.648E6 ton=764.8 ten thousand ton then, common soil, sand, hardcore density are generally 2 ~ 2.5 tons/side, and 2 tons/side of temporary herein value then need promote 382.4 ten thousand side's counterweights.This side measures, and only is equivalent to the concrete square amount of slightly bigger water power plant dam body.
382.4 ten thousand sides=156 meter *, 156 meters=191200 square metres 20 meters=437 meters * 20 meters=286.8 mu 20 meters=478 * of * of 437 meters * of * of 156 meters * (20*20*20), promptly 382.4 ten thousand sides are equivalent to the cube that the length and width height is 156 meters, if highly be 20 meters, then its plane occupation of land is 191200 square metres, promptly 19.12 hectares or 286.8 mu, this is the clean occupation of land of balancing weight, if all make the cubic block that the length and width height is 20 meters, then needs 478 altogether.
Consider that pillar brace, electromechanical engineering are taken up an area of and work living facilities occupations of land such as necessary spacing, supporting power transmission and transformation, control system, bookkeeping personnel etc., taking up an area of increases by 50% again on 287 mu basis, comprehensively take up an area of 430 mu again.
Example two: gone into operation now or at the wind energy turbine set power of building much smaller than the thermal power plant, as the Datang Shandong all the people present of genco wind energy turbine set Huang Island wind energy turbine set planned capacity is 4.95 ten thousand kilowatts, 48401.58 ten thousand yuan of total investment quotas, intend installing the wind power generating set of 33 single-machine capacity 1500kW, annual electricity generating capacity 8954 ten thousand kilowatt hours, average daily generated energy is 24.53 ten thousand degree only, and actual average power is 20.65% of rated power.Calculating according to the front, 208.2 ten thousand degree need to promote mass 382.4 ten thousand sides, 286.8 mu of clean occupations of land, then 10,000 degree need to promote 1.8367 ten thousand sides and take up an area of 1.3775 mu only, calculate with this scale of Huang Island wind energy turbine set, build an energy energy-accumulating power station that its, generated energy electric power of 30% stored only must be taken up an area of 10.14 mu every day only, comprehensively take up an area of 15.2 mu.
Example three: it is reported that the MW class photovoltaic plant that China has generated electricity by way of merging two or more grid systems comprises Chongming, Shanghai 1MW, Harbor, Shanghai new city 1.2MW, Zhejiang Hangzhou 2MW roof photovoltaic plant, Ningxia Shizuishan 10MW, sun mountain, Ningxia 2.5MW, the peaceful eastern 2MW of China's electricity etc.Prosperous ground light overhead utility is assisted in the Xuzhou of scale 20MW, take up an area of 680 mu, annual electricity generating capacity average out to 2,476 ten thousand kWh, average daily generating 6.784 ten thousand degree, supposing to build one can store up its day generated energy energy-accumulating power station of 30% and must take up an area of 2.8 mu only, 4.2 mu of comprehensive occupations of land only are its 0.62% of required 680 mu of occupations of land of generating electricity.
More than hypothesis mass density is 2 tons/side, high 20 meters, lifting height is 100 meters, if can collect cheap high-density packing, or design the more ballast box of Gao Gengda, or the higher lifting height of design, or rely on favorable terrain such as mountain shape to realize that higher lifting height or oblique angle promote, can make the energy density on the unit occupied area increase or reduce construction investment.With existing engineering, it is fully feasible that vertical-lift highly reaches more than 200 meters, the ballast box height reaches more than 30 meters also can be accomplished, then energy density can reach 3 times that suppose previously, net site area then is aforesaid 1/3, consider the characteristics of its flexible addressing again, can account for the arable land hardly.
For wind-power electricity generation, solar energy power generating, fossil fuel is unending as an alternative, reproducible clean energy resource, it is the inevitable choice of the foreseeable future, but its energy density is all very low, form certain generating scale, must take a large amount of for example deserts, ground such as Gobi desert, comparatively speaking, building supporting its floor space of gravity force energy storage power station almost can ignore with investment, and it does not need water, addressing is flexible, the ground material is extensively cheap, the energy density height, energy circulation efficient height, technology maturation, free of contamination characteristics very advantageous, and it can be with instability, discontinuous, the contradiction of unbalanced supply-demand is successfully dissolved, for thermoelectricity, nuclear powers etc. also can store up it and have a surplus and make up a deficiency, for the indispensable especially key link of intelligent grid, its economic benefit and social benefit all are huge, be more remarkable more than pumped storage power station, being suitable for the mode of vast capacity energy storage more widely, is the basic solution of national key electrical network rank stored energy application.
Most preferred embodiment of the present invention is illustrated, and various variations or the remodeling made by those of ordinary skills can not depart from the scope of the present invention.
Claims (8)
1. large-capacity gravity energy storage device for power station is characterized in that comprising:
Balance weight body is converted into the gravitational potential energy that balance weight body increases thereby described balance weight body is used to be promoted to the high-altitude with electric energy;
Support device comprises supporting post (41) and is erected at crossbeam (42) on the described supporting post;
The electric power lifting device, described electric power lifting device comprises motor (21) at least, winding wheel shaft (22) by described motor (21) driving, be arranged at the pulley (23) of described balance weight body top, the middle part walk around described pulley (23) drag-line (24), described drag-line (24) one ends are fixed on the described support device, and the other end is fixed on the described winding wheel shaft (22);
Electricity generating device comprises generator (31), and described generator (31) links to each other with described winding wheel shaft (22) through driving component and is converted into electric energy in order to the gravitational potential energy with described balance weight body.
2. a kind of large-capacity gravity energy storage device for power station according to claim 1 is characterized in that: it is the motor/generator integrated machine that described motor (21) becomes one with described generator (31).
3. a kind of large-capacity gravity energy storage device for power station according to claim 2 is characterized in that: described electric power lifting device and described electricity generating device are installed on the crossbeam (42) of described support device.
4. a kind of large-capacity gravity energy storage device for power station according to claim 3, it is characterized in that: described winding wheel shaft (22) directly links to each other with the output shaft of described motor/generator integrated machine, described support device also comprises support pulley (43), a wherein end of described drag-line (24) is fixed on the described support pulley (43), and the other end is walked around described support pulley (43) and is connected on the described winding wheel shaft (22).
5. a kind of large-capacity gravity energy storage device for power station according to claim 2, it is characterized in that: described winding wheel shaft (22) is connected through gear train (5) with the output shaft of described motor/generator integrated machine, a wherein end of described drag-line (24) is fixed on the described crossbeam (42), and the other end is connected on the described winding wheel shaft (22).
6. according to the described a kind of large-capacity gravity energy storage device for power station of arbitrary claim in the claim 1 to 5, it is characterized in that: described balance weight body comprises ballast box (11) and closely is filled in the interior Weighting filler (12) of described ballast box (11).
7. a kind of large-capacity gravity energy storage device for power station according to claim 6 is characterized in that: the density of described Weighting filler (12) is 2 * 10 at least
3Kg/m
3
8. a kind of large-capacity gravity energy storage device for power station according to claim 7 is characterized in that: described Weighting filler (12) is a kind of in soil, sand, the stone or two kinds mixture at least wherein.
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| CN201010105671A CN101782049A (en) | 2010-01-28 | 2010-01-28 | Large-capacity gravity energy storage device for power station |
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| CN102392800A (en) * | 2011-07-20 | 2012-03-28 | 张永生 | Novel gravity stored energy access mode |
| CN103334887A (en) * | 2013-06-28 | 2013-10-02 | 杨长易 | Environment-friendly heavy hammer type energy storage power station |
| CN106704121A (en) * | 2017-02-23 | 2017-05-24 | 徐州中矿大传动与自动化有限公司 | Efficient gravity energy storage device |
| CN106981884A (en) * | 2017-05-12 | 2017-07-25 | 吕兴卫 | Universal renewable energy power generation storage system |
| CN108609450A (en) * | 2018-07-12 | 2018-10-02 | 商洛市虎之翼科技有限公司 | A kind of elevator with emergency power supply system |
| CN110454340A (en) * | 2019-08-12 | 2019-11-15 | 集美大学 | A kind of gravity energy storage device |
| CN110649761A (en) * | 2019-10-25 | 2020-01-03 | 宋睿轩 | Solar energy conversion device and street lamp |
| CN111237145A (en) * | 2020-02-27 | 2020-06-05 | 本真能源科技(上海)有限公司 | Potential energy electric storage and peak regulation system |
| CN111692055A (en) * | 2020-07-02 | 2020-09-22 | 上海发电设备成套设计研究院有限责任公司 | Gravity energy storage system and use method thereof |
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| CN113357107A (en) * | 2021-07-20 | 2021-09-07 | 西安热工研究院有限公司 | System and method for generating power through heavy object energy storage |
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| CN111692055B (en) * | 2020-07-02 | 2024-04-26 | 上海发电设备成套设计研究院有限责任公司 | Gravity energy storage system and application method thereof |
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| CN102392800B (en) * | 2011-07-20 | 2013-08-14 | 张永生 | Gravity stored energy access mode |
| CN102392800A (en) * | 2011-07-20 | 2012-03-28 | 张永生 | Novel gravity stored energy access mode |
| CN103334887A (en) * | 2013-06-28 | 2013-10-02 | 杨长易 | Environment-friendly heavy hammer type energy storage power station |
| CN103334887B (en) * | 2013-06-28 | 2016-01-20 | 杨长易 | Heavy hammer type energy storage power station |
| CZ309546B6 (en) * | 2015-06-24 | 2023-04-05 | ECOS Choceň s.r.o | System for optimization of electric power generation and consumption |
| CN106704121A (en) * | 2017-02-23 | 2017-05-24 | 徐州中矿大传动与自动化有限公司 | Efficient gravity energy storage device |
| CN106981884A (en) * | 2017-05-12 | 2017-07-25 | 吕兴卫 | Universal renewable energy power generation storage system |
| CN108609450A (en) * | 2018-07-12 | 2018-10-02 | 商洛市虎之翼科技有限公司 | A kind of elevator with emergency power supply system |
| CN110454340A (en) * | 2019-08-12 | 2019-11-15 | 集美大学 | A kind of gravity energy storage device |
| CN110649761A (en) * | 2019-10-25 | 2020-01-03 | 宋睿轩 | Solar energy conversion device and street lamp |
| CN111237145A (en) * | 2020-02-27 | 2020-06-05 | 本真能源科技(上海)有限公司 | Potential energy electric storage and peak regulation system |
| CN111692055A (en) * | 2020-07-02 | 2020-09-22 | 上海发电设备成套设计研究院有限责任公司 | Gravity energy storage system and use method thereof |
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| CN113482868B (en) * | 2021-06-08 | 2023-10-10 | 西安热工研究院有限公司 | Modularized gravity energy storage system with adjustable power and easy capacity expansion |
| CN113357107A (en) * | 2021-07-20 | 2021-09-07 | 西安热工研究院有限公司 | System and method for generating power through heavy object energy storage |
| WO2023082312A1 (en) * | 2021-11-10 | 2023-05-19 | 西安西热锅炉环保工程有限公司 | Suspension-type gravity energy storage system and method |
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