CN117543661B - Energy-saving power supply control system and method based on energy storage - Google Patents
Energy-saving power supply control system and method based on energy storage Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06312—Adjustment or analysis of established resource schedule, e.g. resource or task levelling, or dynamic rescheduling
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- G06Q10/06313—Resource planning in a project environment
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- G06Q50/06—Energy or water supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
- H02J3/144—Demand-response operation of the power transmission or distribution network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
- H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
- H02J2310/58—The condition being electrical
- H02J2310/60—Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
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Abstract
The invention discloses an energy-saving power supply control system and method based on energy storage, and relates to the technical field of power supply control, wherein the energy-saving power supply control system comprises a mains supply side, a star-distributed mobile energy storage unit, an energy storage and off-grid control unit and a power supply access control unit; the power supply access control unit controls the mains supply side to supply power for the demand side, and the power supply time interval is the electricity fee trough time interval of the mains supply side. According to the invention, under the control logic based on the electricity charge trough time period, a plurality of single small-capacity energy storage batteries of the star-distributed mobile energy storage unit are adopted to replace a mains supply side to respectively and independently supply power to a plurality of loads, the single purchase price of the small-capacity energy storage batteries is lower, the power supply of most loads in industrial application can be met, and the maintenance cost of the single small-capacity energy storage batteries is lower; the energy storage and charging of the small-capacity energy storage battery are realized in a centralized way based on a centralized energy storage platform, and the one-to-one direct connection mode is adopted, so that the cost and the power transmission attenuation caused by the erection of a circuit are avoided.
Description
Technical Field
The invention relates to the technical field of power supply control, in particular to an energy-saving power supply control system and method based on energy storage.
Background
In recent years, along with the explosion of the energy storage concept, more and more power supply scenes see the arrangement of the energy storage module, and redundant electric energy is stored when the electricity consumption is low and released when the electricity consumption is high through an energy storage medium of the energy storage module, so that the purpose of energy conservation is achieved.
With the active large electricity consumption side peak Gu Jiacha in various places in China, the industrial and commercial energy storage profit space is widened, and the industrial and commercial energy storage development is indirectly driven. Energy storage power supply is increasingly applied to industrial scenes with huge power consumption.
However, in industrial power supply practical application, there are different problems:
firstly, the purchase cost of the energy storage unit with large capacity is larger, so that the cost saved by adopting the electric charge difference caused by energy storage and power supply can cover the purchase cost of the energy storage unit only in a longer period in actual operation, and the economic benefit is not outstanding;
secondly, the maintenance and the safety management of the large-capacity energy storage unit are complicated, and the overall maintenance cost is too high.
Thirdly, the large-capacity energy storage unit is required to be overhauled for a long time when being failed or unstable, and the power supply of the commercial power cannot be mentioned at all.
Disclosure of Invention
In order to solve the technical problems, the invention provides an energy-saving power supply control system and method based on energy storage. The following technical scheme is adopted:
the energy-saving power supply control system based on energy storage comprises a mains supply side, a star-distributed mobile energy storage unit, an energy storage and off-grid control unit and a power supply access control unit;
the power supply access control unit controls the mains supply side to supply power to the demand side, and the power supply time interval is the electricity fee trough time interval of the mains supply side;
the star-fabric movable energy storage unit comprises a plurality of small-capacity energy storage batteries, a centralized energy storage platform and an energy storage unit conveying assembly, wherein the centralized energy storage platform is electrically connected with a mains supply side through an energy storage and off-grid control unit, the plurality of small-capacity energy storage batteries are respectively positioned on the centralized energy storage platform and are electrically connected with a plurality of energy storage output ends of the centralized energy storage platform, the plurality of energy storage output ends of the centralized energy storage platform respectively store energy for the plurality of small-capacity energy storage batteries to supply power in an electric charge trough period of the mains supply side, and the energy storage unit conveying assembly is used for conveying the plurality of small-capacity energy storage batteries respectively;
the power supply access control unit is in communication connection with the data output end of the centralized energy storage platform, respectively collects energy storage data of a plurality of small-capacity energy storage batteries and power supply demand data of a plurality of loads on the demand side, controls the actuator action of the underground energy storage unit conveying assembly in the electric charge peak time period of the mains supply side, conveys the single small-capacity energy storage battery meeting the energy storage output standard to the position of the single load on the demand side to independently supply power for the single load, and disconnects the electric connection between the single load and the mains supply side.
By adopting the technical scheme, under the control logic based on the electricity charge trough time period, a plurality of single small-capacity energy storage batteries of the star-distributed mobile energy storage unit are adopted to replace a mains supply power supply side to respectively supply power to a plurality of loads, the small-capacity energy storage batteries refer to the energy storage batteries with the index energy storage capacity of 100kWh to 1000kWh, the single purchase price is low, the power supply of most loads in industrial application can be met, for example, the energy storage batteries with the full capacity of 1000kWh are adopted to supply power to the industrial equipment with the power of 50kW for the single equipment, the power can be continuously supplied for 20 hours in theory, and the electricity charge trough time period generally refers to 23:00 points to 7 in the morning: 00, the duration is not longer than 8 hours, so that the industrial power supply requirement can be completely met, the maintenance cost of a single small-capacity energy storage battery is low, and the energy storage and power supply of other small-capacity energy storage batteries are not influenced during the maintenance of the single small-capacity energy storage battery;
the specific small-capacity energy storage battery is realized in a centralized way based on a centralized energy storage platform, and the power supply is realized based on the dispatching of the energy storage unit conveying assembly, and the one-to-one direct connection mode is adopted, so that the cost and the power transmission attenuation caused by the erection of a circuit are avoided.
Optionally, the concentrated energy storage platform includes bed plate, a plurality of energy storage output, electric wire netting link, energy storage data acquisition module, and a plurality of energy storage output equipartitions are at the upper surface of bed plate, set up plug-in plug on the energy storage output, and low capacity energy storage battery bottom sets up the socket end that matches plug-in, and when energy storage unit conveying component placed low capacity energy storage battery on the energy storage output, socket end and plug-in plug electricity are connected, the one end of electric wire netting link is through energy storage and off-grid control unit and mains supply side electricity connection, energy storage data acquisition module includes a plurality of battery sensor, battery management chip and data output, and a plurality of battery sensor are connected with plug-in plug electricity respectively, gather low capacity energy storage battery's battery data through plug-in, battery data includes electric quantity data and temperature data, and battery management chip is connected with a plurality of battery sensor communication respectively, gathers the battery data that a plurality of battery sensor detected to access control unit is given through data output transmission.
Through adopting above-mentioned technical scheme, the design of concentrated energy storage platform is based on a plurality of energy storage output of equipartition installation on the bed plate, can be convenient for energy storage unit conveying component get put the low capacity energy storage battery in vertical direction, the top adopts open design to be convenient for dispel the heat, it should be located the factory building certainly, avoid the rainwater, but the butt joint intercommunication of plug-in plug and socket end can be realized to the energy storage output, but the electric wire netting link realizes automatic control and off-grid through energy storage and off-grid control unit and mains supply power supply side, thereby realize setting for the charges of electricity trough time period and carry out energy storage charging, a plurality of battery sensors of energy storage data acquisition module can gather the electric quantity data and the temperature data of a plurality of low capacity energy storage battery respectively in real time, provide data basis for follow-up energy storage power supply control and heat dissipation control.
Optionally, the centralized energy storage platform further comprises a heat dissipation assembly, the heat dissipation assembly comprises a plurality of radiators and a heat dissipation controller, the bottoms of the base plates are respectively supported by a plurality of supporting legs, the base plates are uniformly provided with heat dissipation holes, heat absorption surfaces of the plurality of radiators are respectively clung to the bottom surface of the base plates, the heat dissipation controller is in communication connection with the data output end, and the running power of the plurality of radiators is controlled according to the battery temperature data output by the data output end.
Through adopting above-mentioned technical scheme, the main effect of radiating component is to the base plate carries out the high efficiency heat dissipation, avoids the security risk that the heating that the energy storage charges in-process leads to.
Optionally, the energy storage unit conveying assembly includes transport support, delivery track, electronic transport dolly, flexible electric jar and electronic clamping jaw, transport support erects a plurality of loads top in concentrated energy storage platform top and demand side, delivery track installs on transport support, and electronic transport dolly is hung on delivery track to remove between concentrated energy storage platform and load along delivery track, the bed plate of flexible electric jar is installed on the bottom surface of electronic transport dolly, electronic clamping jaw is installed at the telescopic link tip of flexible electric jar for grab and put little capacity energy storage battery, power supply access control unit control electronic transport dolly, flexible electric jar and electronic clamping jaw's executive action respectively.
Through adopting above-mentioned technical scheme, energy storage unit conveying assembly's transport control is based on the operation realization of electronic travelling bogie at delivery track, stretches out and draws back the clamp of the electronic clamping jaw of cooperation through the telescopic link of flexible electric jar and puts the automation of realizing getting to put single small capacity energy storage battery.
Optionally, the load side energy storage connection module comprises a load side electric control circuit breaker and a load side socket, the load side socket is electrically connected with the load through the load side electric control circuit breaker, when the energy storage unit conveying component conveys the small-capacity energy storage battery to the load, the small-capacity energy storage battery is put down, and the plug-in plug at the bottom of the small-capacity energy storage battery is electrically connected with the load side socket.
Through adopting above-mentioned technical scheme, through the cooperation of load side automatically controlled circuit breaker and load side socket, can realize that low capacity energy storage battery is connected with the load electricity to realize the energy storage power supply substitution one to one.
Optionally, the power supply access control unit comprises a main control computer, a memory, a data input unit and a plurality of electric control circuit breakers at the mains supply side, wherein a plurality of loads at the demand side are respectively and electrically connected with the mains supply side through the electric control circuit breakers at the mains supply side, the main control computer respectively controls the execution actions of the electric control circuit breakers at the mains supply side, and the memory and the data input unit are respectively in communication connection with the main control computer.
By adopting the technical scheme, the power supply access control unit adopts the main control computer to realize the control of power supply and energy storage, the software algorithm designed by the control logic is stored in the memory, and the data input unit can input different parameters of the control.
Optionally, the power supply access control unit further comprises a large screen display, and the large screen display is in communication connection with the main control computer.
By adopting the technical scheme, the large-screen display can display state data of different small-capacity energy storage batteries, and can also display an energy storage power supply simulation display picture in a three-dimensional simulation mode.
Optionally, the power supply access control unit further comprises an audible and visual alarm, and the main control computer controls the execution action of the audible and visual alarm.
Through adopting above-mentioned technical scheme, through the energy storage data and the temperature data of a plurality of low capacity energy storage batteries that the main control computer data output of power supply access control unit received, based on the judgement threshold value of setting for, can realize the state judgement of low capacity energy storage battery, when judging that battery state is unhealthy needs to overhaul or the temperature is too high, control audible and visual alarm carries out audible and visual alarm action, reminds the staff to intervene the processing.
The energy-saving power supply control method based on energy storage adopts an energy-saving power supply control system based on energy storage to carry out power supply control on a plurality of loads on a demand side in an industrial power supply scene, and the specific method is as follows:
step 1, recording an electric charge crest time period and an electric charge trough time period of a mains supply side through a data input unit;
step 2, if the main control computer judges that the current time is in the electricity charge trough time period, respectively controlling a plurality of electric control circuit breakers at the mains supply side to be in a connection state, and respectively supplying power to a plurality of loads at the mains supply side;
meanwhile, a plurality of small-capacity energy storage batteries are respectively positioned on the centralized energy storage platform, the energy storage and off-grid control unit is connected with a mains supply side, and the mains supply side respectively charges and stores the plurality of small-capacity energy storage batteries;
step 3, if the main control computer judges that the current time is in the electric charge peak time period, executing an energy storage power supply program, wherein the energy storage power supply program is as follows: the method comprises the steps of firstly judging the energy storage electric quantity of a plurality of small-capacity energy storage batteries, then judging the required electric quantity of a plurality of loads, and controlling the small-capacity energy storage batteries with 80% of energy storage electric quantity above 90% of standard energy storage capacity to replace a mains supply side to supply power to the loads with the corresponding quantity one by one.
Optionally, the specific method for one-to-one power supply of the small-capacity energy storage battery to the corresponding number of loads on the mains supply side in the energy storage power supply program is as follows:
the main control computer controls the disconnection of a mains supply side electric control circuit breaker corresponding to a load needing energy storage to replace power supply, the electric conveying trolley starts to move to the position above a small-capacity energy storage battery with any energy storage capacity above 90% of standard energy storage capacity, the telescopic electric cylinder starts to stretch out a telescopic rod, the electric clamping jaw starts to pick up the small-capacity energy storage battery, the telescopic electric cylinder retracts, the electric conveying trolley starts to the position above the load again, the telescopic electric cylinder stretches out again, the socket end at the bottom of the small-capacity energy storage battery is connected with a load side socket, the electric clamping jaw loosens, the energy storage unit conveying assembly resets, the main control computer controls the connection of the load side electric control circuit breaker, and one-to-one power supply of the small-capacity energy storage battery to the load is realized.
By adopting the technical scheme, only the small-capacity energy storage battery with the energy storage electric quantity being more than 90% of the standard energy storage capacity is suitable for electric energy output, and when the small-capacity energy storage battery is adopted for power supply, a certain redundancy amount is required to be reserved, for example, 20% of the small-capacity energy storage batteries are reserved for emergency.
In summary, the present invention includes at least one of the following beneficial technical effects:
the invention can provide an energy-saving power supply control system and method based on energy storage, under the control logic based on the trough time period of the electric charge, a plurality of single small-capacity energy storage batteries of a star-fabric movable energy storage unit are adopted to replace a mains supply side to respectively and independently supply power to a plurality of loads, the single purchase price of the small-capacity energy storage batteries is lower, the power supply of most loads in industrial application can be met, the maintenance cost of the single small-capacity energy storage batteries is lower, and the energy storage power supply of other small-capacity energy storage batteries is not influenced during the maintenance period of the single small-capacity energy storage batteries;
the specific small-capacity energy storage battery is realized in a centralized way based on a centralized energy storage platform, and the power supply is realized based on the dispatching of the energy storage unit conveying assembly, and the one-to-one direct connection mode is adopted, so that the cost and the power transmission attenuation caused by the erection of a circuit are avoided.
Drawings
FIG. 1 is a schematic diagram of the electrical device connection principle of the energy storage-based energy-saving power supply control system of the present invention;
FIG. 2 is a schematic diagram of an architecture of an energy storage based energy efficient power control system of the present invention;
fig. 3 is a schematic diagram of a top view structure of a centralized energy storage platform of the energy storage-based energy-saving power supply control system of the present invention.
Reference numerals illustrate: 1. a mains supply side; 21. a small-capacity energy storage battery; 22. a centralized energy storage platform; 221. an energy storage output end; 2211. a plug-in plug; 222. a base plate; 2221. supporting legs; 2222. a heat radiation hole; 223. a power grid connection end; 224. the energy storage data acquisition module; 225. a battery sensor; 226. a battery management chip; 227. a data output terminal; 3. the energy storage and off-grid control unit; 4. a power supply access control unit; 41. a main control computer; 42. a memory; 43. a data entry unit; 44. an electric control circuit breaker at the mains supply side; 45. a large screen display; 46. an audible and visual alarm; 28. a heat sink; 51. a conveying support; 52. a conveying rail; 53. an electric conveying trolley; 54. a telescopic electric cylinder; 55. an electric clamping jaw; 100. a demand side; 101. a load; 1011. a load side electric control circuit breaker; 1012. a load side socket.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the invention discloses an energy-saving power supply control system and method based on energy storage.
Referring to fig. 1-3, embodiment 1 is an energy-saving power supply control system based on energy storage, which comprises a mains supply side 1, a star-fabric movable energy storage unit, an energy storage and off-grid control unit 3 and a power supply access control unit 4;
the power supply access control unit 4 controls the mains supply side 1 to supply power to the demand side 100, and the power supply time interval is the electricity fee trough time interval of the mains supply side 1;
the star-cloth movable energy storage unit comprises a plurality of small-capacity energy storage batteries 21, a centralized energy storage platform 22 and an energy storage unit conveying assembly, wherein the centralized energy storage platform 22 is electrically connected with the mains supply side 1 through an energy storage and off-grid control unit 3, the plurality of small-capacity energy storage batteries 21 are respectively positioned on the centralized energy storage platform 22 and are electrically connected with a plurality of energy storage output ends 221 of the centralized energy storage platform 22, in the electricity charge trough period of the mains supply side 1, the plurality of energy storage output ends 221 of the centralized energy storage platform 22 respectively store energy for the plurality of small-capacity energy storage batteries 21, and the energy storage unit conveying assembly is used for conveying the plurality of small-capacity energy storage batteries 21 respectively;
the power supply access control unit 4 is in communication connection with the data output end 227 of the centralized energy storage platform 22, respectively collects energy storage data of the plurality of small-capacity energy storage batteries 21 and power supply demand data of the plurality of loads 101 on the demand side 100, controls the actuator action of the underground energy storage unit conveying component in the electric charge peak time period of the mains supply side 1, conveys the single small-capacity energy storage battery 21 meeting the energy storage output standard to the position of the single load 101 on the demand side 100 to independently supply power to the single load 101, and disconnects the electric connection between the single load 101 and the mains supply side 1.
Under the control logic based on the electricity charge trough time period, a plurality of single small-capacity energy storage batteries 21 of the star-cloth movable energy storage unit are adopted to replace a mains supply side 1 to respectively supply power to a plurality of loads 101, the small-capacity energy storage batteries 21 are energy storage batteries with the index energy storage capacity of 100kWh to 1000kWh, the single purchase price is low, the power supply of most loads 101 in industrial applications can be met, for example, the energy storage batteries with the full capacity of 1000kWh are adopted to supply power for industrial equipment with the power of 50kW for a single equipment, the power can be theoretically continuously supplied for 20 hours, and the electricity charge trough time period generally refers to 23 points to 7 in the early morning: 00, the duration is not more than 8 hours, so that the industrial power supply requirement can be completely met, the maintenance cost of a single small-capacity energy storage battery 21 is low, and the energy storage power supply of other small-capacity energy storage batteries 21 is not influenced during the maintenance of the single small-capacity energy storage battery 21;
the specific energy storage and charging of the small-capacity energy storage battery 21 is realized in a centralized way based on the centralized energy storage platform 22, a charging circuit is integrated in the small-capacity energy storage battery 21, the charging can be automatically identified and carried out under the condition of electrifying, and the power supply is realized based on the dispatching of the energy storage unit conveying assembly, and the one-to-one direct connection mode is adopted, so that the cost and power transmission attenuation caused by the erection circuit are avoided.
In embodiment 2, the centralized energy storage platform 22 includes a base plate 222, a plurality of energy storage output ends 221, a power grid connection end 223, and an energy storage data acquisition module 224, the plurality of energy storage output ends 221 are uniformly distributed on the upper surface of the base plate 222, an insertion plug 2211 is disposed on the energy storage output ends 221, a socket end matching the insertion plug 2211 is disposed at the bottom of the small-capacity energy storage battery 21, when the energy storage unit conveying assembly places the small-capacity energy storage battery 21 on the energy storage output ends 221, the socket end is electrically connected with the insertion plug 2211, one end of the power grid connection end 223 is electrically connected with the mains supply side 1 through the energy storage and off-grid control unit 3, the energy storage data acquisition module 224 includes a plurality of battery sensors 225, a battery management chip 226 and a data output end 227, the plurality of battery sensors 225 are respectively electrically connected with the insertion plug 2211, the battery management chip 226 respectively acquires battery data of the small-capacity energy storage battery 21, the battery data includes electric quantity data and temperature data, and the battery data detected by the plurality of battery sensors 225 are respectively acquired, and the battery data are respectively transmitted to the power supply access control unit 4 through the data output end 227.
The design of the centralized energy storage platform 22 is based on a plurality of energy storage output ends 221 uniformly distributed and installed on a base plate 222, so that the energy storage unit conveying assembly can conveniently take and place the small-capacity energy storage battery 21 in the vertical direction, the top is convenient to dissipate heat by adopting an open design, the energy storage platform is certainly located in a factory building, rainwater is avoided, the energy storage output ends 221 can realize the butt joint communication between a plug 2211 and a socket end, the power grid connection ends 223 can realize automatic control and off-grid through the energy storage and off-grid control unit 3 and the mains supply side 1, thereby realizing energy storage and charging in a set electric charge trough time period, and a plurality of battery sensors 225 of an energy storage data acquisition module 224 can respectively acquire electric quantity data and temperature data of the plurality of small-capacity energy storage batteries 21 in real time, so as to provide data basis for subsequent energy storage and power supply control and heat dissipation control.
Embodiment 3, the centralized energy storage platform 22 further comprises a heat dissipation assembly, the heat dissipation assembly comprises a plurality of heat dissipaters 28 and a heat dissipation controller, the bottom of the base plate 222 is respectively supported by a plurality of support legs 2221, the base plate 222 is uniformly provided with heat dissipation holes 2222, the heat absorption surfaces of the plurality of heat dissipaters 28 are respectively clung to the bottom surface of the base plate 222, the heat dissipation controller is in communication connection with the data output end 227, and the operation power of the plurality of heat dissipaters 28 is controlled according to the battery temperature data output by the data output end 227.
The main function of the heat dissipation component is to conduct efficient heat dissipation to the base plate 222, and safety risks caused by heat generation in the energy storage charging process are avoided.
In embodiment 4, the energy storage unit conveying assembly includes a conveying bracket 51, a conveying rail 52, an electric conveying trolley 53, a telescopic electric cylinder 54 and an electric clamping jaw 55, the conveying bracket 51 is erected above the concentrated energy storage platform 22 and above a plurality of loads 101 on the demand side 100, the conveying rail 52 is installed on the conveying bracket 51, the electric conveying trolley 53 is hung upside down on the conveying rail 52 and moves between the concentrated energy storage platform 22 and the loads 101 along the conveying rail 52, a base plate of the telescopic electric cylinder 54 is installed on the bottom surface of the electric conveying trolley 53, the electric clamping jaw 55 is installed at the telescopic rod end of the telescopic electric cylinder 54 for grabbing and placing the small-capacity energy storage battery 21, and the power supply access control unit 4 controls execution actions of the electric conveying trolley 53, the telescopic electric cylinder 54 and the electric clamping jaw 55 respectively.
The conveying control of the energy storage unit conveying assembly is realized based on the operation of the electric conveying trolley 53 on the conveying track 52, and the automatic taking and placing of the single small-capacity energy storage battery 21 are realized through the telescopic rod extension and retraction of the telescopic electric cylinder 54 and the clamping and placing of the electric clamping jaw 55.
Embodiment 5 further comprises a plurality of load-side energy storage connection modules, wherein the load-side energy storage connection modules comprise load-side electrically controlled circuit breakers 1011 and load-side sockets 1012, the load-side sockets 1012 are electrically connected with the load 101 through the load-side electrically controlled circuit breakers 1011, when the energy storage unit conveying assembly conveys the small-capacity energy storage batteries 21 to the load 101, the small-capacity energy storage batteries 21 are put down, and plug-in plugs 2211 at the bottoms of the small-capacity energy storage batteries 21 are electrically connected with the load-side sockets 1012.
By the cooperation of the load-side electric control circuit breaker 1011 and the load-side socket 1012, the small-capacity energy storage battery 21 can be electrically connected with the load 101, thereby realizing one-to-one energy storage and power supply substitution.
In embodiment 6, the power supply access control unit 4 includes a main control computer 41, a memory 42, a data entry unit 43 and a plurality of electric control circuit breakers 44 on the utility power side, wherein the plurality of loads 101 on the demand side 100 are respectively electrically connected with the electric power supply side 1 through the electric control circuit breakers 44 on the utility power side, the main control computer 41 respectively controls the execution actions of the electric control circuit breakers 44 on the utility power side, and the memory 42 and the data entry unit 43 are respectively in communication connection with the main control computer 41.
The power supply access control unit 4 adopts the main control computer 41 to realize the control of power supply and energy storage, the memory 42 stores software algorithms designed by control logic, and the data entry unit 43 can enter different parameters of control.
The power supply access control unit 4 further comprises a large screen display 45, and the large screen display 45 is in communication connection with the main control computer 41.
The large-screen display 45 can display state data of different small-capacity energy storage batteries 21, and can also display an analog display picture of energy storage and power supply in a three-dimensional analog mode.
In embodiment 7, the power supply access control unit 4 further includes an audible and visual alarm 46, and the main control computer 41 controls the execution of the audible and visual alarm 46.
The state judgment of the small-capacity energy storage batteries 21 can be realized based on the set judgment threshold value by the energy storage data and the temperature data of the small-capacity energy storage batteries 21 received by the data output end 227 of the main control computer 41 of the power supply access control unit 4, and when the battery state is judged to be unhealthy and needs to be overhauled or the temperature is too high, the audible and visual alarm 46 is controlled to execute audible and visual alarm actions to remind workers of intervention.
In embodiment 8, an energy-saving power supply control method based on energy storage is adopted to perform power supply control on a plurality of loads 101 on a demand side 100 in an industrial power supply scene by using an energy-saving power supply control system based on energy storage, and the specific method is as follows:
step 1, recording an electric charge crest time period and an electric charge trough time period of a mains supply side 1 through a data recording unit 43;
step 2, if the main control computer 41 determines that the current time is in the electricity fee trough time period, respectively controlling the plurality of electric control circuit breakers 44 on the mains supply side to be in the on state, and respectively supplying power to the plurality of loads 101 by the mains supply side 1;
meanwhile, a plurality of small-capacity energy storage batteries 21 are respectively positioned on the centralized energy storage platform 22, the energy storage and off-grid control unit 3 is connected with the mains supply side 1, and the mains supply side 1 respectively charges and stores the plurality of small-capacity energy storage batteries 21;
step 3, if the main control computer 41 determines that the current time is in the peak time period of the electric charge, executing an energy storage power supply program, where the energy storage power supply program is: the method comprises the steps of firstly judging the energy storage electric quantity of a plurality of small-capacity energy storage batteries 21, then judging the required electric quantity of a plurality of loads 101, and controlling 80% of the small-capacity energy storage batteries 21 with the energy storage electric quantity above 90% of the standard energy storage capacity to replace a mains supply side 1 to supply power to the corresponding loads 101 one to one.
In embodiment 9, a specific method for one-to-one power supply of a corresponding number of loads 101 by using a small-capacity energy storage battery 21 instead of the mains power supply side 1 in the energy storage power supply procedure is as follows:
the main control computer 41 controls the electric control circuit breaker 44 on the mains supply side corresponding to the load 101 needing energy storage to replace power supply to be disconnected, the electric conveying trolley 53 starts to move to the position above the small-capacity energy storage battery 21 with any energy storage capacity above 90% of standard energy storage capacity, the telescopic electric cylinder 54 starts to stretch out a telescopic rod, the electric clamping jaw 55 starts to pick up the small-capacity energy storage battery 21, the telescopic electric cylinder 54 retracts, the electric conveying trolley 53 starts to the position above the load 101 again, the telescopic electric cylinder 54 stretches out again, the socket end at the bottom of the small-capacity energy storage battery 21 is connected with the socket 1012 on the load side, the electric clamping jaw 55 is loosened, the energy storage unit conveying assembly is reset, the main control computer 41 controls the electric control circuit breaker 1011 on the load side to be connected, and one-to-one power supply of the small-capacity energy storage battery 21 to the load 101 is achieved.
Only the small-capacity energy storage battery 21 with the energy storage electric quantity being more than 90% of the standard energy storage capacity is suitable for electric energy output, and when the small-capacity energy storage battery 21 is adopted for power supply, a certain redundancy amount needs to be reserved, for example, 20% of the small-capacity energy storage batteries 21 are reserved for emergency.
The above embodiments are not intended to limit the scope of the present invention, and therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (8)
1. Energy-conserving power supply control system based on energy storage, its characterized in that: the energy storage and off-grid power supply system comprises a mains supply side (1), a star-cloth movable energy storage unit, an energy storage and off-grid control unit (3) and a power supply access control unit (4);
the power supply access control unit (4) controls the mains supply side (1) to supply power to the demand side (100), and the power supply time interval is the electricity fee trough time interval of the mains supply side (1);
the star-fabric movable energy storage unit comprises a plurality of small-capacity energy storage batteries (21), a centralized energy storage platform (22) and an energy storage unit conveying assembly, wherein the centralized energy storage platform (22) is electrically connected with a mains supply side (1) through an energy storage and off-grid control unit (3), the plurality of small-capacity energy storage batteries (21) are respectively positioned on the centralized energy storage platform (22) and are electrically connected with a plurality of energy storage output ends (221) of the centralized energy storage platform (22), the plurality of energy storage output ends (221) of the centralized energy storage platform (22) are respectively used for storing energy and supplying power for the plurality of small-capacity energy storage batteries (21) in a power charge trough time period of the mains supply side (1), and the energy storage unit conveying assembly is used for conveying the plurality of small-capacity energy storage batteries (21) respectively;
the power supply access control unit (4) is in communication connection with a data output end (227) of the centralized energy storage platform (22), acquires energy storage data of a plurality of small-capacity energy storage batteries (21) and power supply demand data of a plurality of loads (101) at a demand side (100) respectively, controls an actuator of an underground energy storage unit conveying component to act in a power supply peak time period of the mains supply side (1), conveys a single small-capacity energy storage battery (21) meeting energy storage output standards to a single load (101) at a position of the single load (101) at the demand side (100), and disconnects the power connection between the single load (101) and the mains supply side (1);
the centralized energy storage platform (22) comprises a base plate (222), a plurality of energy storage output ends (221), a power grid connection end (223) and an energy storage data acquisition module (224), wherein the plurality of energy storage output ends (221) are uniformly distributed on the upper surface of the base plate (222), plug-in plugs (2211) are arranged on the energy storage output ends (221), socket ends matched with the plug-in plugs (2211) are arranged at the bottoms of the small-capacity energy storage batteries (21), when the small-capacity energy storage batteries (21) are placed on the energy storage output ends (221) by the energy storage unit conveying assembly, the socket ends are electrically connected with the plug-in plugs (2211), one end of the power grid connection end (223) is electrically connected with a mains supply side (1) through an energy storage and grid connection control unit (3), the energy storage data acquisition module (224) comprises a plurality of battery sensors (225), a battery management chip (226) and a data output end (227), the battery sensors (225) are respectively electrically connected with the plug-in plugs (2211) to acquire battery data of the small-capacity energy storage batteries (21), the battery data and the battery data of the battery sensors (225) are respectively connected with the battery sensors (225) through the plug-in a communication mode, and transmitted to the power supply access control unit (4) through the data output end (227);
the energy storage unit conveying assembly comprises a conveying support (51), a conveying track (52), an electric conveying trolley (53), a telescopic electric cylinder (54) and an electric clamping jaw (55), wherein the conveying support (51) is erected above a concentrated energy storage platform (22) and above a plurality of loads (101) on a demand side (100), the conveying track (52) is arranged on the conveying support (51), the electric conveying trolley (53) is hung on the conveying track (52) in an inverted mode and moves between the concentrated energy storage platform (22) and the loads (101) along the conveying track (52), a base plate of the telescopic electric cylinder (54) is arranged on the bottom surface of the electric conveying trolley (53), the electric clamping jaw (55) is arranged at the end portion of a telescopic rod of the telescopic electric cylinder (54) and used for grabbing and placing small-capacity energy storage batteries (21), and the power supply access control unit (4) is used for controlling execution actions of the electric conveying trolley (53), the telescopic electric cylinder (54) and the electric clamping jaw (55) respectively.
2. The energy storage-based energy-saving power supply control system according to claim 1, wherein: the centralized energy storage platform (22) further comprises a heat dissipation assembly, the heat dissipation assembly comprises a plurality of radiators (28) and a heat dissipation controller, a plurality of supporting legs are respectively adopted at the bottom of the base plate (222) to support (2221), heat dissipation holes (2222) are uniformly formed in the base plate (222), heat absorption surfaces of the radiators (28) are respectively clung to the bottom surface of the base plate (222), the heat dissipation controller is in communication connection with the data output end (227), and the running power of the radiators (28) is controlled according to battery temperature data output by the data output end (227).
3. The energy storage-based energy-saving power supply control system according to claim 2, wherein: the system also comprises a plurality of load side energy storage connection modules, wherein each load side energy storage connection module comprises a load side electric control circuit breaker (1011) and a load side socket (1012), the load side socket (1012) is electrically connected with the load (101) through the load side electric control circuit breaker (1011), and when the energy storage unit conveying component conveys the small-capacity energy storage battery (21) to the load (101)
When the small-capacity energy storage battery (21) is put down, the plug-in type plug (2211) at the bottom of the small-capacity energy storage battery (21) is electrically connected with the load side socket (1012).
4. The energy storage-based energy-saving power supply control system according to claim 3, wherein: the power supply access control unit (4) comprises a main control computer (41), a memory (42), a data input unit (43) and a plurality of mains supply side electric control circuit breakers (44), a plurality of loads (101) of the demand side (100) are respectively electrically connected with the mains supply side (1) through the mains supply side electric control circuit breakers (44), the main control computer (41) respectively controls execution actions of the plurality of mains supply side electric control circuit breakers (44), and the memory (42) and the data input unit (43) are respectively in communication connection with the main control computer (41).
5. The energy storage-based energy-saving power supply control system according to claim 4, wherein: the power supply access control unit (4) further comprises a large screen display (45), and the large screen display (45) is in communication connection with the main control computer (41).
6. The energy storage-based energy-saving power supply control system according to claim 5, wherein: the power supply access control unit (4) also comprises an audible and visual alarm (46), and the main control computer (41) controls the execution action of the audible and visual alarm (46).
7. The energy-saving power supply control method based on energy storage is characterized by comprising the following steps of: the energy-storage-based energy-saving power supply control system as claimed in claim 6 is used for controlling power supply to a plurality of loads (101) on a demand side (100) in an industrial power supply scene, and the specific method is as follows:
step 1, recording an electric charge crest time period and an electric charge trough time period of a mains supply side (1) through a data recording unit (43);
step 2, if the main control computer (41) judges that the current time is in the electricity charge trough time period, respectively controlling a plurality of electric control circuit breakers (44) at the mains supply side to be in an on state, and respectively supplying power to a plurality of loads (101) by the mains supply side (1);
meanwhile, a plurality of small-capacity energy storage batteries (21) are respectively positioned on the centralized energy storage platform (22), an energy storage and off-grid control unit (3) is connected with a mains supply side (1), and the mains supply side (1) respectively charges and stores the plurality of small-capacity energy storage batteries (21);
step 3, if the main control computer (41) judges that the current time is in the electric charge peak time period, executing an energy storage power supply program, wherein the energy storage power supply program is as follows: the method comprises the steps of firstly judging the energy storage electric quantity of a plurality of small-capacity energy storage batteries (21), then judging the required electric quantity of a plurality of loads (101), and controlling 80% of the small-capacity energy storage batteries (21) with the energy storage electric quantity being more than 90% of the standard energy storage capacity to replace a mains supply side (1) to supply power to the loads (101) with the corresponding quantity one to one.
8. The energy storage-based energy-saving power supply control method according to claim 7, wherein:
the specific method for one-to-one power supply of the load (101) with corresponding quantity by using the small-capacity energy storage battery (21) to replace the mains supply side (1) in the energy storage power supply program is as follows:
the main control computer (41) controls the electric control circuit breaker (44) on the mains supply side corresponding to the load (101) needing energy storage to replace power supply to be disconnected, the electric conveying trolley (53) starts to move to the position above the small-capacity energy storage battery (21) with any energy storage electric quantity above 90% of standard energy storage capacity, the telescopic electric cylinder (54) starts to stretch out and draw back a telescopic rod, the electric clamping jaw (55) starts to grab the small-capacity energy storage battery (21), the telescopic electric cylinder (54) retracts, the electric conveying trolley (53) starts to the position above the load (101) again, the telescopic electric cylinder (54) stretches out again, the socket end at the bottom of the small-capacity energy storage battery (21) is connected with the socket (1012) on the load side, the electric clamping jaw (55) is loosened, the energy storage unit conveying assembly is reset, the main control computer (41) controls the electric control circuit breaker (1011) on the load side to realize one-to-one power supply to the load (101).
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| CN109995063A (en) * | 2019-04-02 | 2019-07-09 | 常州大学 | A kind of user side energy storage control strategy |
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| CN102882237A (en) * | 2011-07-15 | 2013-01-16 | 珠海银通新能源有限公司 | Intelligent energy storage machine and operating method thereof |
| CN206259749U (en) * | 2016-10-27 | 2017-06-16 | 深圳市雄韬电源科技股份有限公司 | Standby power system with energy storage effect |
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