CN113036889A - Mobile energy storage device with wireless charging and discharging functions - Google Patents
Mobile energy storage device with wireless charging and discharging functions Download PDFInfo
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- CN113036889A CN113036889A CN202110466468.XA CN202110466468A CN113036889A CN 113036889 A CN113036889 A CN 113036889A CN 202110466468 A CN202110466468 A CN 202110466468A CN 113036889 A CN113036889 A CN 113036889A
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- inversion
- discharging
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- 238000004146 energy storage Methods 0.000 title claims abstract description 63
- 238000007599 discharging Methods 0.000 title claims abstract description 35
- 230000006870 function Effects 0.000 title claims abstract description 24
- 230000008878 coupling Effects 0.000 claims abstract description 39
- 238000010168 coupling process Methods 0.000 claims abstract description 39
- 238000005859 coupling reaction Methods 0.000 claims abstract description 39
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000005516 engineering process Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 9
- 230000003993 interaction Effects 0.000 claims abstract description 4
- 238000012983 electrochemical energy storage Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
Images
Classifications
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a mobile energy storage device with wireless charging and discharging functions, which comprises an energy storage module, an inversion rectification module, a coupling module and a control module, and has two modes of wireless charging and wireless discharging; the energy storage module, the inversion rectification module and the coupling module are sequentially connected, and the control module is connected with the coupling module and the inversion rectification module; the control module comprises a detection unit, a communication unit, a digital controller and a driving unit; the detection unit is connected with the energy storage module and the coupling module; the communication unit performs information interaction with external equipment; the digital controller generates a driving control signal according to the voltage and current signals sampled by the detection unit and the received charging and discharging request signals; the driving unit generates a driving signal according to the driving control signal to control the inversion rectifying module. The invention has two working modes of wireless charging and wireless discharging, adopts the super nickel battery technology, has a mobile function, and can meet the requirements of quick charging and discharging at any time and place.
Description
Technical Field
The invention relates to the technical field of electrochemical energy storage system control, in particular to a mobile energy storage device with wireless charging and discharging functions.
Background
Electrochemical energy storage is an emerging energy storage technology in recent years, and mainly includes lead storage batteries, lithium ion batteries, flow batteries, sodium-based batteries, and other types of battery energy storage technologies. The electrochemical energy storage technology can realize the high-efficiency conversion between electric energy and other various forms of energy by the chargeable and dischargeable operating characteristic, can realize the translation of the energy in time, and solves the asynchronism of the energy in the aspects of production and consumption. The utilization of the stored energy can improve the consumption of renewable energy sources, improve the flexibility and reliability of the operation control of the power grid, delay the updating investment of the power transmission and distribution line, improve the operation efficiency of the power grid and be beneficial to the safe, stable and reliable operation of the system. However, the existing electrochemical energy storage devices are all installed in a fixed mode, and the flexibility in space is poor. In addition, the existing mainstream lead storage battery and lithium ion battery technologies have low charge and discharge multiplying power and poor instantaneous charge and discharge capacity. The invention discloses a mobile energy storage device with wireless charging and discharging functions by combining a wireless power transmission technology. Compared with the traditional wire power supply mode, the wireless power transmission technology has the advantages of no electrical connection, flexibility, convenience, safety, reliability and the like. In addition, the super nickel battery technology is adopted, so that the charge-discharge characteristic with super high multiplying power can be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a mobile energy storage device with wireless charging and discharging functions, the energy storage device integrates the functions of an inverter and a rectifier, the device has two working modes of wireless charging and wireless discharging through a multiplexing power device, the components of the energy storage device are simplified, and meanwhile, the energy storage device adopts a super nickel battery technology, has a mobile function and can meet the requirements of quick charging and discharging at any time and any place.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the utility model provides a portable energy memory with wireless charge-discharge function, portable energy memory includes energy storage module, contravariant rectifier module, coupling module and control module to two kinds of mode have: a wireless charging mode and a wireless discharging mode; the energy storage module is connected with the inversion rectifying module, the inversion rectifying module is connected with the coupling module, and the control module is respectively connected with the coupling module and the inversion rectifying module; the energy storage module is composed of an electrochemical energy storage unit, and the electrochemical energy storage unit adopts a super nickel battery technology; the inversion rectifying module integrates an inverter and a rectifier; the coupling module comprises a compensation capacitor and a coupling coil which are connected in series; the control module comprises a detection unit, a communication unit, a digital controller and a driving unit; the detection unit is respectively connected with the energy storage module and the coupling module and is used for monitoring the state of the energy storage module and sampling a current signal of the coupling module; the communication unit performs information interaction with external equipment; the digital controller generates a driving control signal according to the voltage and current signals sampled by the detection unit and the received charging and discharging request signals; the driving unit generates a driving signal according to the driving control signal to control the inversion rectifying module.
Further, in a wireless discharge mode, the inverter rectification module converts direct current output by the energy storage module into high-frequency alternating current, and the coupling module serves as a transmitting module and transmits the high-frequency alternating current to an external wireless electric energy receiving device in a wireless electric energy transmission mode to supply power to external equipment; in a wireless charging mode, the coupling module serves as a receiving module, high-frequency alternating current sent by an external wireless electric energy transmitting device is obtained in a wireless electric energy transmission mode, and the inversion rectifying module converts the high-frequency alternating current obtained by the coupling module into direct current to be transmitted to the energy storage module to charge the energy storage module.
Further, the wireless charging mode and the wireless discharging mode are based on adaptive phase-shift frequency modulation control; when the inversion rectifying module works in an inversion state, the phases of the alternating-current side voltage and the current fundamental wave component are the same, and when the inversion rectifying module works in a rectifying state, the phases of the alternating-current side voltage and the current fundamental wave component are opposite; the natural frequency of the coupling module is equal to the natural frequencies of the external wireless power receiving device and the external wireless power transmitting device.
Further, the mobile energy storage device is mounted on a mobile device.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the electrochemical energy storage unit adopts a super nickel battery technology, has super-multiplying power charge-discharge characteristics and can bear thousands of amperes of current charge-discharge.
2. The wireless charging device has the characteristics of bidirectional wireless power transmission, integrates an inverter and a rectifier, and has wireless charging and wireless discharging functions.
3. The mobile charging and discharging device has a mobile function and can meet the charging and discharging requirements of any time and place.
In a word, the mobile energy storage device with the wireless charging and discharging function disclosed by the invention adopts a super nickel battery technology, can realize the charging and discharging characteristic with a super multiplying power, has a mobile function, can meet the rapid charging and discharging requirements at any time and place, can go back and forth, can adjust the capacity configuration of energy storage power stations at various places according to the actual requirements, avoids the repeated construction of the energy storage power stations, greatly saves the cost, can be flexibly used for fault rescue work of electric vehicles in the way of being detained due to the consumption of electric quantity and the like, and has obvious advantages in the actual application.
Drawings
Fig. 1 is a schematic structural diagram of a mobile energy storage device with a wireless charging and discharging function in an embodiment.
Fig. 2 is a schematic diagram of a topology of an inverter rectification module in an embodiment.
Fig. 3 shows the switching tube driving signals and the voltage and current waveforms on the ac side when the circuit shown in fig. 2 operates in the inverter mode according to the embodiment.
Fig. 4 shows the switching tube driving signals and the voltage and current waveforms on the ac side when the circuit shown in fig. 2 operates in the rectifying mode according to the embodiment.
Fig. 5 is a schematic diagram of a coupling coil structure in an embodiment.
Fig. 6 is a charge and discharge curve of the super nickel battery module according to the embodiment.
Fig. 7 is a control flowchart of the mobile energy storage device with wireless charging and discharging functions for adjusting the capacity configuration of each local energy storage power station according to the embodiment.
Fig. 8 is a control flowchart of the mobile energy storage device with wireless charging and discharging functions for electric vehicle fault rescue in the embodiment.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
As shown in fig. 1, the embodiment discloses a mobile energy storage device with wireless charging and discharging functions, which comprises an energy storage module, an inverter rectification module, a coupling module and a control module, and has two working modes: a wireless charging mode and a wireless discharging mode; the energy storage module is connected with the inversion rectifying module, the inversion rectifying module is connected with the coupling module, and the control module is respectively connected with the coupling module and the inversion rectifying module; the energy storage module is composed of an electrochemical energy storage unit, and the electrochemical energy storage unit adopts a super nickel battery technology; the inversion rectifying module integrates an inverter and a rectifier; the coupling module comprises a compensation capacitor and a coupling coil which are connected in series; the control module comprises a detection unit, a communication unit, a digital controller and a driving unit; the detection unit is respectively connected with the energy storage module and the coupling module and is used for monitoring the state of the energy storage module and sampling a current signal of the coupling module; the communication unit performs information interaction with external equipment; the digital controller generates a driving control signal according to the voltage and current signals sampled by the detection unit and the received charging and discharging request signals; the driving unit generates a driving signal according to the driving control signal to control the inversion rectifying module.
In a wireless discharge mode, the inversion rectification module converts direct current output by the energy storage module into high-frequency alternating current, and the coupling module serves as a transmitting module and transmits the high-frequency alternating current to an external wireless electric energy receiving device in a wireless electric energy transmission mode to supply power to external equipment; in a wireless charging mode, the coupling module serves as a receiving module, high-frequency alternating current sent by an external wireless electric energy transmitting device is obtained in a wireless electric energy transmission mode, and the inversion rectifying module converts the high-frequency alternating current obtained by the coupling module into direct current to be transmitted to the energy storage module to charge the energy storage module.
Optionally, in the present embodiment, the inverting rectification module adopts a single-phase full-bridge topology, as shown in fig. 2, where CdcIs a filter capacitor on the DC side, Q1-Q4Is a high-power MOSFET switching tube, Q1、Q3And Q2、Q4Two bridge arms are respectively formed, the on and off of four switching tubes are respectively and independently controlled by a control module, wherein Q1And Q3Drive signal S of1And S3Complementary, Q2And Q4Drive signal S of2And S4Complement each other, and by adjusting Q1And Q2The effective value of the voltage and current on the ac side is controlled by the phase difference of the driving signals, the corresponding waveforms of the switching tube driving signals and the voltage and current on the ac side are shown in fig. 3 when the circuit operates in the inverter mode, and the corresponding waveforms of the switching tube driving signals and the voltage and current on the ac side are shown in fig. 4 when the circuit operates in the rectifier mode.
Alternatively, fig. 5 is a coupling coil structure adopted in this embodiment. Adopt solenoid type structure, the magnetic core is in the middle of the coil, and the characteristics of this structure lie in: there is good coupling to the coil whether the external coil is above or below the coil.
Fig. 6 is a charge-discharge curve of a super nickel battery module (50Ah/12V), which shows that the super nickel battery technology has super-high-rate charge-discharge characteristics and can withstand thousands of amperes of current charge-discharge.
Referring to fig. 7, a control flow of the mobile energy storage device with wireless charging and discharging functions provided in this embodiment for adjusting the capacity configuration of each local energy storage power station is described, specifically as follows:
and all the local energy storage power stations send out requests for adjusting energy storage configuration, the mobile energy storage device moves to the specified energy storage power station, and meanwhile, the communication unit of the energy storage device sets a self operation mode according to the received real-time operation condition of the local power grid. When the power grid is in the peak period of power utilization, the mobile energy storage device is set to be in a wireless discharge mode to provide energy for the local power grid; when the power grid is in a low-peak power utilization period, the mobile energy storage device is set to be in a wireless charging mode, and energy is stored.
As shown in fig. 8, a control flow of the mobile energy storage device with wireless charging and discharging functions for electric vehicle fault rescue in this embodiment is described, specifically as follows:
the electric automobile that catches a position sends the request of seeking help, and portable energy memory confirms whether energy storage module residual capacity satisfies the electric automobile demand of once charging through detecting element, if when unsatisfying, energy memory charges at the preparation region, and when satisfying the back, energy memory removes to the electric automobile department that catches a position, and energy memory sets up to wireless discharge mode, charges for electric automobile carries out wireless, after charging, returns to the preparation region.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (4)
1. The utility model provides a portable energy memory with wireless charge-discharge function which characterized in that: the mobile energy storage device comprises an energy storage module, an inversion rectification module, a coupling module and a control module, and has two working modes: a wireless charging mode and a wireless discharging mode; the energy storage module is connected with the inversion rectifying module, the inversion rectifying module is connected with the coupling module, and the control module is respectively connected with the coupling module and the inversion rectifying module; the energy storage module is composed of an electrochemical energy storage unit, and the electrochemical energy storage unit adopts a super nickel battery technology; the inversion rectifying module integrates an inverter and a rectifier; the coupling module comprises a compensation capacitor and a coupling coil which are connected in series; the control module comprises a detection unit, a communication unit, a digital controller and a driving unit; the detection unit is respectively connected with the energy storage module and the coupling module and is used for monitoring the state of the energy storage module and sampling a current signal of the coupling module; the communication unit performs information interaction with external equipment; the digital controller generates a driving control signal according to the voltage and current signals sampled by the detection unit and the received charging and discharging request signals; the driving unit generates a driving signal according to the driving control signal to control the inversion rectifying module.
2. The mobile energy storage device with wireless charging and discharging functions as claimed in claim 1, wherein: in a wireless discharge mode, the inversion rectification module converts direct current output by the energy storage module into high-frequency alternating current, and the coupling module serves as a transmitting module and transmits the high-frequency alternating current to an external wireless electric energy receiving device in a wireless electric energy transmission mode to supply power to external equipment; in a wireless charging mode, the coupling module serves as a receiving module, high-frequency alternating current sent by an external wireless electric energy transmitting device is obtained in a wireless electric energy transmission mode, and the inversion rectifying module converts the high-frequency alternating current obtained by the coupling module into direct current to be transmitted to the energy storage module to charge the energy storage module.
3. The mobile energy storage device with wireless charging and discharging functions as claimed in claim 1, wherein: the wireless charging mode and the wireless discharging mode are based on self-adaptive phase-shifting frequency modulation control; when the inversion rectifying module works in an inversion state, the phases of the alternating-current side voltage and the current fundamental wave component are the same, and when the inversion rectifying module works in a rectifying state, the phases of the alternating-current side voltage and the current fundamental wave component are opposite; the natural frequency of the coupling module is equal to the natural frequencies of the external wireless power receiving device and the external wireless power transmitting device.
4. The mobile energy storage device with wireless charging and discharging functions as claimed in claim 1, wherein: the mobile energy storage device is mounted on a mobile device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110466468.XA CN113036889A (en) | 2021-04-28 | 2021-04-28 | Mobile energy storage device with wireless charging and discharging functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110466468.XA CN113036889A (en) | 2021-04-28 | 2021-04-28 | Mobile energy storage device with wireless charging and discharging functions |
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| CN113036889A true CN113036889A (en) | 2021-06-25 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640393A (en) * | 2009-07-21 | 2012-08-15 | 惠普发展公司，有限责任合伙企业 | Power bridge circuit for bi-directional inductive signaling |
| CN103296705A (en) * | 2012-03-01 | 2013-09-11 | 中兴通讯股份有限公司 | Charge-discharge method of terminal and charge-discharge terminal |
| CN105914899A (en) * | 2016-05-31 | 2016-08-31 | 河海大学常州校区 | Two-way wireless power transmission system and two-way wireless power transmission method |
| CN106849387A (en) * | 2017-02-28 | 2017-06-13 | 深圳市特斯拉无线设备有限公司 | A kind of wireless charging emitter and its intelligent charge input and output intent |
| CN107919715A (en) * | 2017-12-19 | 2018-04-17 | 深圳市金威澎电子有限公司 | A kind of double-direction radio charging unit and charging method |
| CN110588380A (en) * | 2019-08-09 | 2019-12-20 | 华为技术有限公司 | Chargeable and dischargeable energy storage device, wireless charging system and electric automobile |
| CN112290615A (en) * | 2020-09-30 | 2021-01-29 | 北京空间飞行器总体设计部 | On-orbit replaceable self-adaptive storage battery system and control method thereof |
-
2021
- 2021-04-28 CN CN202110466468.XA patent/CN113036889A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640393A (en) * | 2009-07-21 | 2012-08-15 | 惠普发展公司，有限责任合伙企业 | Power bridge circuit for bi-directional inductive signaling |
| CN103296705A (en) * | 2012-03-01 | 2013-09-11 | 中兴通讯股份有限公司 | Charge-discharge method of terminal and charge-discharge terminal |
| CN105914899A (en) * | 2016-05-31 | 2016-08-31 | 河海大学常州校区 | Two-way wireless power transmission system and two-way wireless power transmission method |
| CN106849387A (en) * | 2017-02-28 | 2017-06-13 | 深圳市特斯拉无线设备有限公司 | A kind of wireless charging emitter and its intelligent charge input and output intent |
| CN107919715A (en) * | 2017-12-19 | 2018-04-17 | 深圳市金威澎电子有限公司 | A kind of double-direction radio charging unit and charging method |
| CN110588380A (en) * | 2019-08-09 | 2019-12-20 | 华为技术有限公司 | Chargeable and dischargeable energy storage device, wireless charging system and electric automobile |
| CN112290615A (en) * | 2020-09-30 | 2021-01-29 | 北京空间飞行器总体设计部 | On-orbit replaceable self-adaptive storage battery system and control method thereof |
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