CN106026146A - Energy storage energy router and control method - Google Patents
Energy storage energy router and control method Download PDFInfo
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- CN106026146A CN106026146A CN201610448490.0A CN201610448490A CN106026146A CN 106026146 A CN106026146 A CN 106026146A CN 201610448490 A CN201610448490 A CN 201610448490A CN 106026146 A CN106026146 A CN 106026146A
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- energy
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- router
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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
Abstract
The invention discloses an energy storage energy router, which comprises a first rectifier, an inverter, a transformer, a second rectifier and an energy storage module, wherein the first rectifier, the inverter, the transformer and the second rectifier are sequentially connected through a bus; and the energy storage module is connected with the bus. The invention further discloses a control method of the energy storage energy router. The control method comprises an energy storage control mode and a discharge control mode; in the energy storage control mode, a first circuit breaker is controlled to be conducted and the energy storage module is charged through a first converter; and in the discharge control mode, the energy storage module supplies a load with electricity through a second converter. The energy storage energy router has the advantages that the structure is simple, different types of energy storage modules can be freely selected according to the requirements, the energy storage capacity can be dynamically adjusted, the structural redundancy is easy to achieve, power supplies with different voltage grades can be output and the output power supply quality is high.
Description
Technical field
The present invention relates to a kind of energy router and control method, particularly relate to a kind of energy storage energy router and control method.
Background technology
For alleviating energy crisis, reduce environmental pollution, electrical network has accessed increasing distribution type renewable energy, but these regenerative resources the most all have local position distribution, intermittence.This just requires the energy adding a large amount of energy storage device in electrical network to buffer these fluctuations.On the other hand, traditional single centralized power generating network is just being gradually converted into the centralized and distributed power generation mode coexisted, and the one-way flow of electric energy also begins to become multidirectional flowing.In following intelligent grid planning, all users are not only party in request, and after adding wind-light storage system, user can also produce and store electric power, it is possible to electrical network and remaining user's free transaction electric power.Therefore, it is possible to the energy router actively controlling scheduling energy stream is the important component part of following intelligent grid, need corresponding energy storage device to buffer the energy of fluctuation.
Patent No. CN102315645B, the patent of invention of entitled " for the energy router of distributed power generation " discloses a kind of energy router for distributed power generation, in this device, each distributed power generation power supply and energy-storage units electrical energy form also differ, need the alternating current that just can be converted into frequency by corresponding changer, phase place is identical, the harmonic wave that each transducer introduces can be introduced into ac bus, and mentions the composition of energy-storage units the most further.
Summary of the invention
The technical problem to be solved in the present invention is that the technical problem existed for prior art, the present invention provides a kind of simple in construction, can the most arbitrarily select different types of energy-storage module, it is dynamically adapted stored energy capacitance, it is easily achieved structural redundancy, exportable different electric pressure power supply, energy storage energy router that out-put supply quality is high and control method.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is: a kind of energy storage energy router, including the first commutator, inverter, transformator, the second commutator and energy-storage module；Described first commutator, inverter, transformator and the second commutator are sequentially connected with by bus, and described energy-storage module is connected with described bus.
As a further improvement on the present invention, described energy-storage module includes at least one energy-storage units.
As a further improvement on the present invention, described energy-storage units includes the first transducer, storage bodies and the second transducer being sequentially connected with；Described first transducer is connected with described bus.
As a further improvement on the present invention, described energy-storage units includes the storage bodies of multiple parallel connection.
As a further improvement on the present invention, described energy-storage units also includes the first chopper；Storage bodies described in energy-storage units is connected with described first transducer by described first chopper.
As a further improvement on the present invention, the type of described storage bodies includes mechanical energy storage body, Power Flow body, electrochemical energy storage body；The type of the storage bodies in described same energy-storage units is identical.
As a further improvement on the present invention, described first transducer includes ac-dc converter, hands over transducer and straight transducer；Described second transducer includes ac-dc converter and straight transducer.
A kind of energy storage energy router control method, including energy storage control model and control of discharge pattern；In described energy storage control model, turn on by controlling the first chopper, charged to energy-storage module by the first transducer；Described control of discharge pattern, is powered to the load by energy-storage module by described second transducer.
As a further improvement on the present invention, including utility power quality control strategy and two kinds of energy-storage module selection strategyes of electrical network electric energy management strategy；Described utility power quality control strategy includes, under energy storage control model, prioritizing selection be storage bodies be that the energy-storage module of Power Flow body is charged, under control of discharge pattern, prioritizing selection powers to the load with storage bodies for the energy-storage module of Power Flow body；Described electrical network electric energy management strategy includes, under energy storage control model, prioritizing selection be storage bodies be that the energy-storage module of mechanical energy storage body or electrochemical energy storage body is charged, under control of discharge pattern, prioritizing selection powers to the load with storage bodies for the energy-storage module of mechanical energy storage body or electrochemical energy storage body.
As a further improvement on the present invention, obtaining the voltage on bus, when described voltage is more than the tank voltage threshold value preset, energy storage energy router enters energy storage control model；When described voltage is less than the discharge voltage threshold value preset, energy storage energy router enters control of discharge pattern.
Compared with prior art, it is an advantage of the current invention that:
1, present configuration is simple, can the most arbitrarily select different types of energy-storage module, the different electric pressure power supply of output.
2, the present invention can the most dynamically adjust stored energy capacitance, it is easy to accomplish structural redundancy.
3, the present invention possesses utility power quality control strategy and electrical network electric energy management strategy, can effectively suppress concussion, peak load shifting, regulated power output, be effectively improved the quality of power supply.
Accompanying drawing explanation
Fig. 1 is specific embodiment of the invention energy storage energy router structural representation.
Fig. 2 is specific embodiment of the invention energy-storage units structural representation.
Fig. 3 is energy storage energy router control flow chart of the present invention.
Marginal data: 1, the first commutator；2, inverter；3, transformator；4, the second commutator；5, energy-storage module；51, energy-storage units；511, the first transducer；512, storage bodies；513, the second transducer；514, the first chopper；6, bus.
Detailed description of the invention
Below in conjunction with Figure of description and concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
As it is shown in figure 1, the present embodiment one energy storage energy router, including the first commutator 1, inverter 2, transformator the 3, second commutator 4 and energy-storage module 5；First commutator 1, inverter 2, transformator 3 and the second commutator 4 are sequentially connected with by bus 6, and energy-storage module 5 is connected with bus 6.Energy-storage module 5 includes at least one energy-storage units 51.In the present embodiment, energy-storage units 51 is connectable on any one section of bus 6, and when energy-storage module 5 includes multiple energy-storage units 51, each energy-storage units 51 can be connected with one section of bus 6 simultaneously, it is also possible to connects from different buses 6 respectively.It should be noted that for such as photovoltaic generation and the wind power generation distributed energy, it is also possible to access the most any one section of bus 6 as required.
As in figure 2 it is shown, in the present embodiment, energy-storage units 51 includes the first transducer 511, storage bodies 512 and the second transducer 513 being sequentially connected with；First transducer 511 is connected with bus 6.Energy-storage units 51 includes the storage bodies 512 of multiple parallel connection.Energy-storage units 51 also includes the first chopper 514；In energy-storage units 51, storage bodies 512 is connected with the first transducer 511 by the first chopper 514.The type of storage bodies 512 includes mechanical energy storage body, Power Flow body, electrochemical energy storage body；The type of the storage bodies 512 in same energy-storage units 51 is identical.In the present embodiment, storage bodies 512 in energy-storage units 51 is Redundancy Design, including the storage bodies 512 of multiple parallel connections, when one of them storage bodies 512 lost efficacy, directly by the first chopper 514, this storage bodies is bypassed, still can ensure the properly functioning of whole energy-storage units 51.Storage bodies 512 is connected with the first transducer 511 by the first chopper 514, can control disconnection and the conducting of the first chopper 514 according to demand, thus adjust the stored energy capacitance of energy-storage module 51 dynamically.In the present embodiment, different types of storage bodies 512 can be selected according to demand, including such as using super capacitor and the Power Flow body of superconduction, as used the mechanical energy storage body of flywheel energy storage, as used the electrochemical energy storage body of electrochemical energy storage, by selecting different types of storage bodies 512, the energy storage energy router that can make the present invention is the biggest with Power Flow fast response time, mechanical energy storage and electrochemical energy storage capacity, the advantage being suitable for extensive energy storage, can be effectively improved the quality of power supply.When needs are for energy-storage module 5 charging energy-storing, first chopper 514 is turned on by stored energy capacitance as required, storage bodies 512 in energy-storage units 51 is accessed bus 6, the electric energy of electrical network passes through bus the 6, first transducer 511 to storage bodies 512 charging energy-storing, after the voltage of storage bodies 512 reaches default magnitude of voltage, disconnect the first chopper 514, complete the thermal energy storage process of storage bodies 512.When needs energy-storage module 5 powers to the load, by controlling the second transducer 513, storage bodies 512 power to the load, with the electricity shortage of supplementary electrical network.
In the present embodiment, different from the annexation of bus 6 according to energy-storage units 51, and the type of storage bodies 512 is different, the first transducer 511 needs to select different types of transducer accordingly, and the first transducer 511 includes ac-dc converter, hands over transducer and straight transducer.In the present embodiment, the connection bus 6 between inverter 2 and transformator 3 is ac bus, and when energy-storage units 51 is for exchange energy-storage units, the first transducer 511 needs to select to hand over transducer.Second transducer 513 includes ac-dc converter and straight transducer.
The present embodiment energy storage energy router simple in construction, can the most arbitrarily select different types of energy-storage units 51, and be combined, the power supply of the different electric pressure of output, and export DC source by the second commutator 4, can effectively suppress the harmonic wave in out-put supply, propose the output quality of power supply.And in the present embodiment, energy-storage units 51 can the most dynamically adjust stored energy capacitance, it is easy to accomplish structural redundancy.
As it is shown on figure 3, the present embodiment one energy storage energy router control method, including energy storage control model and control of discharge pattern；In energy storage control model, turn on by controlling the first chopper 514, charged to energy-storage module 5 by the first transducer 511；Control of discharge pattern, is powered to the load by energy-storage module 5 by the second transducer 513.In the present embodiment, when the load that energy storage energy router connects is in need for electricity low ebb, during such as residential quarter less energy intensive on daytime, or when the electric energy that electrical network can be provided by increases, such as solar energy, point can power increase by the distributed energy, the electric energy that electrical network is provided is more than the need for electricity of load, and the electric energy of electrical network is stored in the storage bodies 512 to energy-storage module 5 by energy storage energy router by energy storage control model.When the load that energy storage energy router connects processes need for electricity peak, as when night, residential quarter power consumption was higher, or when the electric energy that electrical network can be provided by reduces, if solar energy, point energy distributed energy are because night is without sunlight, or calm cause power supply reduce, the electric energy that electrical network is provided is less than the need for electricity of load, electric energy in energy storage energy router energy-storage module 5 storage bodies 512 is discharged by energy storage energy router by control of discharge pattern, there is provided to load, to make up the deficiency of the provided electric energy of electrical network.
Including utility power quality control strategy and two kinds of energy-storage module 5 selection strategyes of electrical network electric energy management strategy；Utility power quality control strategy includes, under energy storage control model, prioritizing selection be storage bodies 512 be that the energy-storage module 5 of Power Flow body is charged, under control of discharge pattern, the energy-storage module 5 that prioritizing selection is Power Flow body with storage bodies 512 powers to the load；Electrical network electric energy management strategy includes, under energy storage control model, prioritizing selection be storage bodies 512 be that the energy-storage module 5 of mechanical energy storage body or electrochemical energy storage body is charged, under control of discharge pattern, the energy-storage module 5 that prioritizing selection is mechanical energy storage body or electrochemical energy storage body with storage bodies 512 powers to the load.In the present embodiment, energy storage energy router can include utility power quality control strategy and two kinds of operation reserve of electrical network electric energy management strategy according to use demand.Utility power quality control strategy can carry out load tracking, control concussion, stablize regenerative resource output and ups power output etc., under utility power quality control strategy, needing energy storage energy router to have higher response speed, the energy-storage units 51 of prioritizing selection Power Flow body type powers to the load, or is charged, to realize providing uninterrupted power source to load, or reach the purpose of suppression concussion.Under electrical network electric energy management strategy, extensive electric power storage can be carried out, simultaneously, the distributed energy such as wind energy and solar energy of electric energy are provided, all there is cyclically-varying, and, the power consumption of load there is also cyclically-varying, such as residential quarter less energy intensive on daytime, night power consumption higher, accordingly, it would be desirable to energy storage energy router energy supply more than power consumption time by under energy storage, energy stored by discharging when power consumption is more than energy supply, carries out peak load shifting to electrical network significant.And electrical network is carried out peak load shifting, the biggest to the demand of stored energy capacitance, but response speed is required the highest, therefore, under electrical network electric energy management strategy, prioritizing selection mechanical energy storage body or electrochemical energy storage body carry out energy storage or power to the load, and can effectively meet the demand to energy storage energy, and the demand powered to the load.
In the present embodiment, by obtaining the voltage on bus 6, when voltage is more than the tank voltage threshold value preset, energy storage energy router enters energy storage control model；When voltage is less than the discharge voltage threshold value preset, energy storage energy router enters control of discharge pattern.
The present embodiment energy storage energy router control method, can effectively suppress concussion, peak load shifting, regulated power output, be effectively improved the quality of power supply.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any pro forma restriction to the present invention.Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Therefore, every content without departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should fall in the range of technical solution of the present invention is protected.
Claims (10)
1. an energy storage energy router, it is characterised in that: include the first commutator (1), inverter (2), transformator (3), the second commutator (4) and energy-storage module (5)；Described first commutator (1), inverter (2), transformator (3) and the second commutator (4) are sequentially connected with by bus (6), and described energy-storage module (5) is connected with described bus (6).
Energy storage energy router the most according to claim 1, it is characterised in that: described energy-storage module (5) includes at least one energy-storage units (51).
Energy storage energy router the most according to claim 2, it is characterised in that: described energy-storage units (51) includes the first transducer (511), storage bodies (512) and the second transducer (513) being sequentially connected with；Described first transducer (511) is connected with described bus (6).
Energy storage energy router the most according to claim 3, it is characterised in that: described energy-storage units (51) includes the storage bodies (512) of multiple parallel connection.
Energy storage energy router the most according to claim 4, it is characterised in that: described energy-storage units (51) also includes the first chopper (514)；Storage bodies (512) described in energy-storage units (51) is connected with described first transducer (511) by described first chopper (514).
Energy storage energy router the most according to claim 5, it is characterised in that: the type of described storage bodies (512) includes mechanical energy storage body, Power Flow body, electrochemical energy storage body；The type of the storage bodies (512) in described same energy-storage units (51) is identical.
Energy storage energy router the most according to claim 6, it is characterised in that: described first transducer (511) includes ac-dc converter, hands over transducer and straight transducer；Described second transducer (513) includes ac-dc converter and straight transducer.
8. an energy storage energy router control method, it is characterised in that: include energy storage control model and control of discharge pattern；In described energy storage control model, turn on by controlling the first chopper (514), charged to energy-storage module (5) by the first transducer (511)；Described control of discharge pattern, is powered to the load by energy-storage module (5) by described second transducer (513).
Energy storage energy router control method the most according to claim 8, it is characterised in that: include utility power quality control strategy and two kinds of energy-storage module (5) selection strategyes of electrical network electric energy management strategy；Described utility power quality control strategy includes, under energy storage control model, prioritizing selection be storage bodies (512) be that the energy-storage module (5) of Power Flow body is charged, under control of discharge pattern, prioritizing selection powers to the load with the energy-storage module (5) that storage bodies (512) is Power Flow body；Described electrical network electric energy management strategy includes, under energy storage control model, prioritizing selection be storage bodies (512) be that the energy-storage module (5) of mechanical energy storage body or electrochemical energy storage body is charged, under control of discharge pattern, prioritizing selection powers to the load with the energy-storage module (5) that storage bodies (512) is mechanical energy storage body or electrochemical energy storage body.
10. claim requires the energy storage energy router control method described in 8 or 9, it is characterised in that: obtaining the voltage on bus (6), when described voltage is more than the tank voltage threshold value preset, energy storage energy router enters energy storage control model；When described voltage is less than the discharge voltage threshold value preset, energy storage energy router enters control of discharge pattern.
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| CN201610448490.0A CN106026146A (en) | 2016-06-21 | 2016-06-21 | Energy storage energy router and control method |
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| CN201610448490.0A CN106026146A (en) | 2016-06-21 | 2016-06-21 | Energy storage energy router and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107242107A (en) * | 2017-07-24 | 2017-10-13 | 苏州普兆农业科技有限公司 | A kind of photovoltaic water-raising irrigation system |
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| CN103944180A (en) * | 2013-01-21 | 2014-07-23 | 同济大学 | Hybrid energy storage wind/PV hybrid generation system based on solid state transformer |
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Patent Citations (3)
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| CN103944180A (en) * | 2013-01-21 | 2014-07-23 | 同济大学 | Hybrid energy storage wind/PV hybrid generation system based on solid state transformer |
| CN203445669U (en) * | 2013-09-23 | 2014-02-19 | 中芯国际集成电路制造(北京)有限公司 | Uninterrupted power source cell management apparatus |
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