CN108448693B - Wireless power transmission system for AGV and control method thereof - Google Patents
Wireless power transmission system for AGV and control method thereof Download PDFInfo
- Publication number
- CN108448693B CN108448693B CN201810203048.0A CN201810203048A CN108448693B CN 108448693 B CN108448693 B CN 108448693B CN 201810203048 A CN201810203048 A CN 201810203048A CN 108448693 B CN108448693 B CN 108448693B
- Authority
- CN
- China
- Prior art keywords
- charging
- agv
- module
- wireless power
- receiving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 2
- 230000001965 increasing effect Effects 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 description 11
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- H02J7/025—
-
- 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
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- H02J2007/10—
Abstract
The invention discloses a wireless power transmission system for an AGV and a control method thereof, wherein the system comprises a ground wireless power transmitting system and an AGV wireless power receiving system; an electromagnetic resonance type wireless electric energy transmission method is adopted, and the transmission distance is increased; by adopting the charging strategy combining quick charging and slow charging, the service life of the battery is ensured, meanwhile, the working efficiency of the AGV is improved, and the full-automatic work of the AGV is realized.
Description
Technical Field
The invention relates to the technical field of wireless power transmission, in particular to an electromagnetic resonance type wireless power transmission system and method for an AGV.
Background
An AGV is a mobile robot that has a guidance device and a microcomputer control system and can accurately travel along a guidance route. The AGV has strong adaptability and high working efficiency, can realize 24-hour unattended operation, and plays an important role in a plurality of fields such as machining, automobile assembly, tobacco industry, logistics storage and transportation, steel smelting and the like. The AGV generally uses a rechargeable battery as its power source, and when the AGV operates, the voltage of the battery pack gradually decreases, and the electric energy stored in the battery gradually decreases, so that the electric energy needs to be replenished at regular time during the cycle operation.
Traditional AGV adopts wiping line, tow chain power supply more, and the flexibility of equipment is not enough, and has certain power supply potential safety hazard. As the number of charges increases, the failure rate of the charger connector increases significantly, increasing management and operating costs.
Because the capacity of the storage battery is limited, the continuous working time, power, running speed and the like of the AGV are affected, and therefore the utilization rate and the working efficiency of the AGV are difficult to improve.
Two wireless charging technologies are currently in common use: electromagnetic induction coupling and electromagnetic resonance coupling. Compared with an inductive coupling type wireless charging technology, the electromagnetic resonance coupling type wireless charging technology has the remarkable characteristic that a tuning network is arranged in a circuit topological structure, leakage inductance compensation and frequency tuning can be achieved, the transmission distance is increased, and when an obstacle in a charging path is far away from a coil, the wireless charging cannot be remarkably influenced.
The AGV adopts wireless quick pulse to charge at the operating process parking point, under the prerequisite of guaranteeing AGV continuous operation, can suitably reduce the energy storage capacity of battery, need not occupy additional charge time, has improved work efficiency.
Disclosure of Invention
The invention provides an AGV wireless energy charging system for solving the problems in the prior art and combining the characteristics of the AGV, so that the AGV can automatically complete wireless charging, the charging is carried out by using the intermittent time, and the logistics efficiency is improved.
The technical scheme adopted for realizing the aim of the invention is as follows: a wireless power transmission system for an AGV comprises a ground wireless power transmitting system and an AGV wireless power receiving system;
the ground wireless power transmitting system comprises a full-bridge rectifying module, a boost module, an inversion module, a wireless power transmitting module, a transmitting terminal controller and a ground wireless communication module; the input end of the full-bridge rectification module is externally connected with single-phase alternating current, the input end of the boost module is connected with the output end of the full-bridge rectification module, the input end of the inversion module is connected with the output end of the boost module, and the output end of the inversion module is connected with the input end of the wireless power transmitting module; the wireless power transmitting module comprises a transmitting end LCC compensating circuit and a wireless transmitting coil; the ground wireless communication module is connected with the transmitting terminal controller;
the AGV wireless power receiving system comprises a storage battery power detection module, a wireless power transmission system receiving device, a receiving end controller and an AGV wireless communication module; the wireless power transmission system receiving device comprises a wireless power receiving module, a full-wave rectification module and a filter circuit; the output end of the wireless power receiving module is connected with the input end of the full-wave rectifying module, the output end of the full-wave rectifying module is connected with the input end of the filter circuit, and the output end of the filter circuit charges a storage battery; the wireless power receiving module comprises a receiving end LCC compensation circuit and a wireless receiving coil; the AGV wireless communication module is connected with the receiving end controller.
Further, the transmitting end LCC compensation circuit comprises a resonant inductor Lf1Parallel resonant capacitor Cf1And series compensation capacitor Cp1(ii) a The receiving end LCC compensation circuit comprises a resonant inductor Lf2Parallel resonant capacitor Cf2And series compensation capacitor Cp2。
Furthermore, the inversion module is composed of a MOSFET switching tube and an anti-parallel diode thereof, and has the function of converting direct current into high-frequency alternating current, and the output impedance of the inversion module becomes inductive through reasonable parameter configuration, so that the phase of resonant current lags behind the phase of resonant voltage, the realization of zero-voltage switching of the inversion module is ensured, and the power loss is reduced.
Furthermore, a plurality of electrolytic capacitors are connected in parallel to reduce equivalent impedance and improve working efficiency in the capacitor in the filter circuit; the high-frequency characteristic of the filter circuit is improved by connecting a plurality of monolithic capacitors and ceramic capacitors in parallel.
Further, the wireless transmitting coil is paved under the road surface, and the wireless receiving coil is installed on the bottom surface of the AGV.
Furthermore, the system is provided with a charging stop point at a material loading and unloading transportation point on the AGV navigation path, and the electric energy is supplemented to the storage battery according to the charging requirement of the storage battery by utilizing the material loading and unloading clearance.
The system provides the rest area that charges for AGV, overhauls or when the battery is serious insufficient voltage, provides long-time charging when AGV.
In addition, the invention also provides a control method of the wireless power transmission system for the AGV, wherein the wireless power transmission system for the AGV comprises a fast charging mode and a slow charging mode, the fast charging mode is adopted when the AGV is in a daily working state, and the slow charging mode is adopted when the AGV is in an initial state or a maintenance state;
when the system is in a daily working state, the AGV reaches a charging stop point, the storage battery electric energy detection module judges that the storage battery needs to be charged and generates a quick charging requirement when the storage battery electric energy detection module is used for judging the working voltage of the storage battery when the AGV works, and the detected working voltage is lower than a certain threshold value. Meanwhile, the electric energy detection module detects the charging voltage and the charging current of the storage battery when the AGV charges and transmits the charging voltage and the charging current to the receiving end controller to judge whether the battery is full. When the battery charging is completed, the receiving end controller generates a charging ending request;
when the system is in an initial state or a maintenance state, the AGV is in a rest area, and a charging start button on a receiving end controller is manually opened to generate a slow charging requirement. The storage battery electric energy detection module transmits storage battery charging voltage and charging current when the AGV charges to the receiving end controller, and whether the battery is full of is judged. When the battery charging is completed, the receiving end controller generates a charging ending request;
the receiving end controller of the system sends the generated corresponding request to the AGV wireless communication module, and different charging requests are sent to the transmitting end controller through data exchange between the AGV wireless communication module and the ground wireless communication module;
and the transmitting terminal controller judges whether to charge and adopt different charging modes according to the charging requirement transmitted by the receiving terminal controller.
Furthermore, the transmitting terminal controller adopts a Boost double closed-loop control loop, so that the system works in different charging modes, and the Boost circuit control system controls the output power of the system by changing the output voltage of the Boost circuit.
The transmitting terminal controller detects boost output voltage V and boost input current I through a sampling circuit, a control outer ring is a boost circuit inductive current control loop, and the output of the control outer ring is given by the boost circuit input voltage inner ring control. And the duty ratio output of the control inner ring is subjected to PWM modulation to control a switching tube so as to control the output power of the system.
The invention has the advantages that: wireless charging is adopted to replace wired charging, so that the safety of an AGV charging system is improved; an electromagnetic resonance type wireless electric energy transmission method is adopted, and the transmission distance is increased; by adopting the charging strategy combining quick charging and slow charging, the service life of the battery is ensured, meanwhile, the working efficiency of the AGV is improved, and the full-automatic work of the AGV is realized.
Drawings
Fig. 1 is a topology diagram of a wireless power transmission system for AGVs according to an embodiment.
FIG. 2 is a schematic diagram of dual closed loop control of a boost circuit according to an embodiment.
Fig. 3 is a flowchart illustrating the operation of the controller at the transmitting end of the wireless charging system according to the embodiment.
Fig. 4 is a flowchart illustrating the operation of the receiver controller of the wireless charging system according to the embodiment.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in FIG. 1, the wireless power transmission system for AGV of the present invention includes a ground wireless power transmitting system and an AGV wireless power receiving system;
the ground wireless power transmitting system comprises a wireless power transmission system transmitting device. The wireless power transmission system transmitting deviceThe wireless power transmission device comprises a full-bridge rectification module, a boost module, an inversion module, a wireless power transmission module and a transmission end controller; full-bridge rectifier module D1-D4Input end is externally connected with single-phase alternating current UinThe input end of the boost module is connected with the output end of the full-bridge rectification module, and the inversion module S1-S4The input end is connected with the output end of the boost module, and the output end of the inversion module is connected with the input end of the wireless power transmitting module. The wireless power transmitting module comprises a transmitting terminal LCC compensating circuit and a wireless transmitting coil. The LCC compensation circuit at the transmitting end comprises a resonant inductor Lf1Parallel resonant capacitor Cf1And series compensation capacitor Cp1；
The AGV wireless power transmission system comprises a wireless power receiving module, a full-wave rectifying module and a filter circuit. The output end of the wireless power receiving module is connected with the input end of the full-wave rectification module, the output end of the full-wave rectification module is connected with the input end of the filter circuit, and the output end of the filter circuit charges the storage battery. The wireless power receiving module comprises a receiving end LCC compensation circuit and a wireless receiving coil. The receiving end LCC compensation circuit comprises a resonant inductor Lf2Parallel resonant capacitor Cf2And series compensation capacitor Cp2。
The LCC compensation circuit needs to satisfy the following formula,
wherein ω is0In order to be the operating frequency of the inverter,L1and L2As inductance of the transmitting and receiving coils, Cf1And Cf2Parallel resonance capacitance values, C, for the transmitting and receiving ends, respectivelyp1And Cp2Compensating capacitance values, L, in series for the transmitting and receiving ends, respectivelyf1And Lf2The inductance of the resonant coil is the transmitting end and the receiving end.
Referring to fig. 2, the charging system of the present invention employs a dual closed-loop PI controller, wherein the outer loop controls the boost input current and the inner loop controls the boost output voltage. And enabling the transmitting terminal controller to generate PWM with corresponding duty ratio to obtain corresponding boost output voltage, thereby obtaining corresponding charging power. The charging power of the charging system is as follows:
where M is the mutual inductance between the transmitter coil and the receiver coil, UABInputting the effective value of the fundamental wave of the square wave voltage, U, to the LCC of the transmitting terminalabAnd outputting the effective value of the square wave voltage fundamental wave for the receiving end LCC.
The control method of the wireless power transmission system for the AGV is shown in the figure 3 and the figure 4, when the system is in a daily working state, the AGV reaches a charging stop point, the receiving end controller judges that charging is needed through data obtained by the detection of the storage battery power detection module, and the receiving end controller generates a charging request and sends the charging request to the ground wireless communication module through the AGV wireless communication module. And the transmitting controller selects a quick charging control algorithm after receiving the charging request of the communication module, and automatically starts the transmitting terminal inverter to enable the system to work in a quick charging mode. When the charging of the battery is completed, the receiving end controller sends a charging ending request to the transmitting end controller, at the moment, the transmitting end controller closes the transmitting end inverter, the charging is stopped, and the AGV drives to the next material loading and unloading point.
When the system is in an initial state or a maintenance state, the AGV is in a rest area, and a charging start button on a receiving end controller is manually opened to generate a slow charging requirement. And the receiving end controller generates a charging request and sends the charging request to the ground wireless communication module through the AGV wireless communication module. And after receiving the charging request of the communication module, the transmitting controller selects a slow charging control algorithm and automatically starts the transmitting end inverter to enable the system to work in a slow charging mode. The storage battery electric energy detection module transmits storage battery charging voltage and charging current when the AGV charges to the receiving end controller, and whether the battery is full of is judged. When the battery charging is completed, the receiving-end controller generates a charging end request.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (2)
1. A control method of a wireless power transmission system for an AGV is characterized in that:
the wireless power transmission system for the AGV comprises a ground wireless power transmitting system and an AGV wireless power receiving system;
the ground wireless power transmitting system comprises a full-bridge rectifying module, a boost module, an inversion module, a wireless power transmitting module, a transmitting terminal controller and a ground wireless communication module; the input end of the full-bridge rectification module is externally connected with single-phase alternating current, the input end of the boost module is connected with the output end of the full-bridge rectification module, the input end of the inversion module is connected with the output end of the boost module, and the output end of the inversion module is connected with the input end of the wireless power transmitting module; the wireless power transmitting module comprises a transmitting end LCC compensating circuit and a wireless transmitting coil; the ground wireless communication module is connected with the transmitting terminal controller;
the AGV wireless power receiving system comprises a storage battery power detection module, a wireless power transmission system receiving device, a receiving end controller and an AGV wireless communication module; the wireless power transmission system receiving device comprises a wireless power receiving module, a full-wave rectification module and a filter circuit; the output end of the wireless power receiving module is connected with the input end of the full-wave rectifying module, the output end of the full-wave rectifying module is connected with the input end of the filter circuit, and the output end of the filter circuit charges a storage battery; the wireless power receiving module comprises a receiving end LCC compensation circuit and a wireless receiving coil; the AGV wireless communication module is connected with the receiving end controller;
the wireless power transmission system of the AGV comprises a fast charging mode and a slow charging mode, wherein the fast charging mode is adopted when the AGV is in a daily working state, and the slow charging mode is adopted when the AGV is in an initial state or a maintenance state;
when the system is in a daily working state, the AGV reaches a charging stop point, the storage battery electric energy detection module judges that the storage battery needs to be charged and generates a quick charging requirement according to the fact that the detected working voltage of the storage battery when the AGV works is lower than a certain threshold value; meanwhile, the electric energy detection module detects the charging voltage and the charging current of the storage battery during the charging of the AGV and transmits the charging voltage and the charging current to the receiving end controller to judge whether the battery is fully charged; when the battery charging is completed, the receiving end controller generates a charging ending request;
when the system is in an initial state or a maintenance state, the AGV is in a rest area, and a slow charging requirement is generated by manually opening a charging start button on a receiving end controller; the storage battery electric energy detection module transmits storage battery charging voltage and charging current during AGV charging to the receiving end controller to judge whether the battery is fully charged; when the battery charging is completed, the receiving end controller generates a charging ending request;
the receiving end controller of the system sends the generated corresponding request to the AGV wireless communication module, and different charging requests are sent to the transmitting end controller through data exchange between the AGV wireless communication module and the ground wireless communication module;
and the transmitting terminal controller judges whether to charge and adopt different charging modes according to the charging requirement transmitted by the receiving terminal controller.
2. The control method according to claim 1, characterized in that: the transmitting terminal controller adopts a Boost double closed-loop control loop to enable the system to work in different charging modes, and the Boost circuit control system controls the output power of the system by changing the output voltage of the Boost circuit;
the transmitting terminal controller detects boost output voltage V and boost input current I through a sampling circuit; the control outer ring is a boost circuit inductive current control loop, and the output of the control outer ring is used as the given value of the boost circuit input voltage inner ring control; and the duty ratio output of the control inner ring is subjected to PWM modulation to control a switching tube so as to control the output power of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810203048.0A CN108448693B (en) | 2018-03-13 | 2018-03-13 | Wireless power transmission system for AGV and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810203048.0A CN108448693B (en) | 2018-03-13 | 2018-03-13 | Wireless power transmission system for AGV and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108448693A CN108448693A (en) | 2018-08-24 |
| CN108448693B true CN108448693B (en) | 2022-03-18 |
Family
ID=63194734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810203048.0A Active CN108448693B (en) | 2018-03-13 | 2018-03-13 | Wireless power transmission system for AGV and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108448693B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130903B (en) * | 2018-08-29 | 2021-07-16 | 昆明理工大学 | Low-voltage high-power wireless charging system with bilateral LCCL-T topology |
| CN109149736B (en) * | 2018-08-31 | 2021-02-12 | 华中科技大学 | Wireless charging and discharging system of electric automobile |
| CN109217496B (en) * | 2018-10-10 | 2021-12-07 | 武汉理工大学 | Parameter analysis method for bilateral LCC compensation circuit in wireless electric energy transmission system |
| CN109193973A (en) * | 2018-10-24 | 2019-01-11 | 中尔（深圳）电能科技有限公司 | Radio transition equipment and charging method |
| CN111064498A (en) * | 2019-11-14 | 2020-04-24 | 镓能半导体（佛山）有限公司 | Wireless power transmission system |
| CN110901421B (en) * | 2019-12-13 | 2021-07-06 | 武汉理工大学 | Intelligent bidirectional dynamic wireless charging system and method |
| CN110962633B (en) * | 2019-12-13 | 2021-03-09 | 武汉理工大学 | Low-voltage high-current wireless charging system and method |
| CN113067395A (en) * | 2019-12-31 | 2021-07-02 | 华为技术有限公司 | Electronic equipment, wireless charging receiving device and control method, and wireless charging system |
| CN111917165A (en) * | 2020-07-09 | 2020-11-10 | 中国电力科学研究院有限公司 | Crawler-type inspection robot for transformer substation, charging device, charging system and method |
| CN111697799B (en) * | 2020-07-29 | 2021-08-24 | 中惠创智（深圳）无线供电技术有限公司 | Wireless charging system and zero-voltage switch control method of inverter of wireless charging system |
| CN113242531B (en) * | 2021-05-07 | 2022-09-16 | 上海振华重工(集团)股份有限公司 | AGV remote controller, AGV vehicle matching method and AGV matching system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237154A (en) * | 2008-02-01 | 2008-08-06 | 清华大学 | Dynamics battery-super capacitance mixed dynamic system for electric car |
| EP2216870A2 (en) * | 2009-02-09 | 2010-08-11 | Kabushiki Kaisha Toyota Jidoshokki | Non-contact power transmission apparatus |
| CN201967167U (en) * | 2011-01-30 | 2011-09-07 | 盐城市广庆电器有限公司 | Induction heating dual-cycle controller |
| CN104521091A (en) * | 2012-08-02 | 2015-04-15 | 日产自动车株式会社 | Charging management system for unpiloted conveyance vehicle and charging management method |
| CN105262189A (en) * | 2015-11-24 | 2016-01-20 | 江南大学 | Wireless charging system of electric logistic vehicle AGV |
| CN105553063A (en) * | 2016-02-06 | 2016-05-04 | 青岛鲁渝能源科技有限公司 | AGV wireless charging management system and method and fault detection method |
| CN106787741A (en) * | 2010-08-13 | 2017-05-31 | 奥克兰联合服务有限公司 | Induced power transmission control |
| CN206283307U (en) * | 2016-12-28 | 2017-06-27 | 中惠创智无线供电技术有限公司 | A kind of farad capacitor charging system |
-
2018
- 2018-03-13 CN CN201810203048.0A patent/CN108448693B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237154A (en) * | 2008-02-01 | 2008-08-06 | 清华大学 | Dynamics battery-super capacitance mixed dynamic system for electric car |
| EP2216870A2 (en) * | 2009-02-09 | 2010-08-11 | Kabushiki Kaisha Toyota Jidoshokki | Non-contact power transmission apparatus |
| CN106787741A (en) * | 2010-08-13 | 2017-05-31 | 奥克兰联合服务有限公司 | Induced power transmission control |
| CN201967167U (en) * | 2011-01-30 | 2011-09-07 | 盐城市广庆电器有限公司 | Induction heating dual-cycle controller |
| CN104521091A (en) * | 2012-08-02 | 2015-04-15 | 日产自动车株式会社 | Charging management system for unpiloted conveyance vehicle and charging management method |
| CN105262189A (en) * | 2015-11-24 | 2016-01-20 | 江南大学 | Wireless charging system of electric logistic vehicle AGV |
| CN105553063A (en) * | 2016-02-06 | 2016-05-04 | 青岛鲁渝能源科技有限公司 | AGV wireless charging management system and method and fault detection method |
| CN206283307U (en) * | 2016-12-28 | 2017-06-27 | 中惠创智无线供电技术有限公司 | A kind of farad capacitor charging system |
Non-Patent Citations (2)
| Title |
|---|
| A 3–10 GHz IR-UWB CMOS Pulse Generator With 6 mW Peak Power Dissipation Using A Slow-Charge Fast-Discharge Technique;Ming Shen etal;《IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS》;20140930;第24卷(第9期);634-636 * |
| 电动汽车无线充电的磁耦合结构综述;郑心城等;《电气技术》;20171231(第4期);9-15 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108448693A (en) | 2018-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108448693B (en) | Wireless power transmission system for AGV and control method thereof | |
| EP3215393B1 (en) | Systems, apparatus and method for adaptive wireless power transfer | |
| CN102969776B (en) | Wireless charging device of electronic automobile | |
| CN107425610B (en) | Wireless power transmission system for load compensation of parallel energy system and control method | |
| CN105493375B (en) | For the equipment of induction type energy transmission and for running the method for being used for the equipment of induction type energy transmission | |
| CN109895640B (en) | Two-stage control system and control method for wireless charging of electric automobile | |
| CN103872794B (en) | Electric sightseeing vehicle electromagentic resonance formula radio energy transmission system | |
| CN107618388B (en) | Wireless charging system of electric automobile | |
| CN104779672B (en) | A kind of wireless charging system being applicable to cell performance load | |
| CN105634093A (en) | Movable three-dimensional wireless charging device of mobile phones | |
| CN104821643A (en) | Robot wireless charging device | |
| CN110707831B (en) | Transmitting side switching three-coil constant-current constant-voltage induction type wireless charging method and system | |
| CN202817865U (en) | Intelligent non-contact charging system | |
| US20220340024A1 (en) | Transmit end, receive end, method, and system for wireless charging | |
| CN105262189A (en) | Wireless charging system of electric logistic vehicle AGV | |
| CN108718106B (en) | Wireless charging system for electric automobile | |
| US11190042B2 (en) | Wireless charging transmitting apparatus, transmitting method, and wireless charging system | |
| CN110492621B (en) | Constant voltage/constant current type wireless charging system based on TS/FS variable structure compensation network of transmitting end | |
| US10298063B2 (en) | Power-supplying device and wireless power supply system | |
| CN108808875B (en) | Constant-current and constant-voltage wireless charging system and wireless charging method suitable for battery characteristics | |
| CN107453490A (en) | A kind of Contactless power transmission device | |
| WO2015035924A1 (en) | Wireless charging device and mobile terminal using same | |
| EP4344022A1 (en) | Transmitting end and receiving end for wireless charging, and wireless charging system | |
| CN107097670A (en) | A kind of many primary side windings wireless electric vehicle charging device in parallel | |
| CN112366777A (en) | Constant-current constant-voltage induction type wireless charging system based on secondary variable structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Liyan Inventor after: Chen Wenjie Inventor after: Liu Jia Inventor after: Chen Qihong Inventor after: Quan Shuhai Inventor after: Xie Changjun Inventor after: Shi Ying Inventor after: Huang Liang Inventor after: Deng Jian Inventor before: Zhang Liyan Inventor before: Liu Jia Inventor before: Chen Qihong Inventor before: Quan Shuhai Inventor before: Xie Changjun Inventor before: Shi Ying Inventor before: Huang Liang Inventor before: Deng Jian |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |