CN110336384A - A kind of wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer - Google Patents
A kind of wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer Download PDFInfo
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- CN110336384A CN110336384A CN201910366439.9A CN201910366439A CN110336384A CN 110336384 A CN110336384 A CN 110336384A CN 201910366439 A CN201910366439 A CN 201910366439A CN 110336384 A CN110336384 A CN 110336384A
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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
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer, including primary circuit, secondary circuit, wireless feedback module and coupler, primary circuit include primary controller, full bridge inverter and DC power supply；Secondary circuit includes secondary controller, rectification filtering module and voltage acquisition module；Wireless feedback module includes primary side WiFi module, communication unit and secondary side WiFi module, reference voltage inputs primary controller, primary controller receives the DC-AC inversion that the direct current provided passes through full bridge inverter, inductively coupled power transfer is carried out by coupler again, the AC-DC that secondary circuit carries out rectification filtering module to the electric energy that primary circuit transmitting comes is handled, the direct current of conversion is passed into load, secondary circuit establishes connection by wireless feedback module with primary circuit, forms wireless feedback channel.The present invention realizes contactless power transfer, high efficiency inverter circuit, wireless closed-loop pressure stabilizing control.
Description
Technical field
The invention belongs to electronic circuit fields, are related to a kind of wireless closed-loop pressure stabilizing control based on inductively coupled power transfer
Device.
Background technique
For domestic contactless power transfer also in conceptual phase, previous electric energy transmission system is all open cycle system,
With the variation of input voltage and output loading, output voltage is also changing, and user in actual use, needs to add in output end
Voltage stabilizing module carries out pressure stabilizing, increases volume and actually uses the complexity of process.
Inductively coupled power transfer is contactless power transfer, realizes leading between power supply and load without physics
Line connection carries out electric energy transmission, has broken the intrinsic thinking of traditional contact electric energy transmission, while being underwater, moist, corrosion
Etc. adverse circumstances provide the mode of electric energy transmission, due to not direct physical connection, be inherently eliminated contact, rubbed
Bring is got an electric shock phenomenon, has very big application space in dust, underwater, inflammable and explosive environment.
Summary of the invention
To solve the above problems, the technical solution of the present invention is as follows: a kind of wireless closed-loop based on inductively coupled power transfer
Voltage-stabilizing controller, including primary circuit, secondary circuit, wireless feedback module and coupler, wherein
The primary circuit includes primary controller, full bridge inverter and DC power supply；The secondary circuit includes pair
Side controller, rectification filtering module and voltage acquisition module；The wireless feedback module includes primary side WiFi module, communication unit
With secondary side WiFi module,
Wherein, DC power supply is full bridge inverter power supply, and reference voltage inputs primary controller, full bridge inverter packet
4 SiCMOSFET full-bridge circuit compositions are included, primary controller receives the DC-AC that the direct current provided passes through full bridge inverter
Inversion, then inductively coupled power transfer is carried out by coupler, the electric energy that secondary circuit carrys out primary circuit transmitting rectifies
The AC-DC of filter module is handled, and the direct current of conversion is passed to load, secondary circuit and primary circuit pass through wireless feedback mould
Block establishes connection, forms wireless feedback channel, carries out data communication.
Preferably, the primary controller and secondary controller include STM32F107VCT6.
Preferably, the full bridge inverter includes si8273 isolator, the 4 road pwm signals that primary controller is exported
It controls and forms isolation between 4 SiCMOSFET of full-bridge.
Preferably, the rectification filtering module includes D4SBL40.
Preferably in the voltage acquisition module includes WBV342D01 direct current voltage sensor, to the direct current in circuit
Press real-time measurement.
Preferably, the wireless feedback module includes the Ethernet interface of ENC28J60 and the controller equipped with SPI
RJ45。
Compared with prior art, beneficial effects of the present invention are as follows:
The present invention is based on the principles of inductively coupled power transfer, and wireless communication module is added in a device and realizes wireless closed-loop
Pressure stabilizing output.System is powered by DC power supply, and primary controller receives the direct current provided and passes through coupler by DC-AC inversion
Inductively coupled power transfer is carried out, secondary circuit carries out AC-DC processing to the electric energy that primary circuit is transmitted, by the direct current of conversion
It passes to load, secondary circuit and primary circuit and connection is established by network communication, form wireless feedback channel, it is logical to carry out data
Letter.Voltage acquisition module acquires the output voltage of secondary circuit by radioing to primary circuit, and primary controller is to secondary side
The voltage data passed over obtains error signal compared with the reference voltage of setting, is calculated by algorithm, exports control amount tune
Control parameter is saved, realizes that output voltage is equal with the reference voltage of setting, realizes wireless closed-loop control.At least have beneficial below
Effect:
1. transmitting non-contact electric energy connects without conducting wire, overcomes the influence of adverse circumstances；
2. planned network telecommunication circuit realizes the data transmission of primary and secondary side circuit；
2. using SiCMOSFET New Type Power Devices, response is fast, high-efficient, power is big；
3. designing closed-loop control, wireless closed-loop pressure stabilizing output is realized.
Detailed description of the invention
Fig. 1 is the knot of the wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer of the specific embodiment of the invention
Structure block diagram；
Fig. 2 is the original of the wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer of the specific embodiment of the invention
Side/secondary controller circuit diagram；
Fig. 3 is the complete of the wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer of the specific embodiment of the invention
Bridge inverter circuit schematic diagram；
Fig. 4 is the whole of the wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer of the specific embodiment of the invention
Flow filter module circuit diagram；
Fig. 5 is the nothing of the wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer of the specific embodiment of the invention
Line feedback module circuit diagram；
Fig. 6 is the electricity of the wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer of the specific embodiment of the invention
Press acquisition module circuit diagram；
Fig. 7 is the nothing of the wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer of the specific embodiment of the invention
Line feedback principle figure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
On the contrary, the present invention covers any substitution done on the essence and scope of the present invention being defined by the claims, repairs
Change, equivalent method and scheme.Further, in order to make the public have a better understanding the present invention, below to of the invention thin
It is detailed to describe some specific detail sections in section description.Part without these details for a person skilled in the art
The present invention can also be understood completely in description.
Referring to Fig. 1-7, including primary circuit 10, secondary circuit 20, wireless feedback module 30 and coupler 40, wherein
Primary circuit 10 includes primary controller 11, full bridge inverter 12 and DC power supply 13；Secondary circuit 20 includes
Secondary controller 23, rectification filtering module 21 and voltage acquisition module 22；Wireless feedback module 30 include primary side WiFi module 31,
Communication unit 32 and secondary side WiFi module 33,
Wherein, DC power supply 13 is the power supply of full bridge inverter 12, and reference voltage inputs primary controller 11, full-bridge inverting
Circuit 12 includes 4 SiCMOSFET full-bridge circuit compositions, and primary controller 11 receives the direct current provided by full-bridge inverting electricity
The DC-AC inversion on road 12, then inductively coupled power transfer is carried out by coupler 40, secondary circuit 20 transmits primary circuit 10
The electric energy come carries out the AC-DC processing of rectification filtering module 21, and the direct current of conversion is passed to load 24, secondary circuit 20 with
Primary circuit 10 establishes connection by wireless feedback module 30, forms wireless feedback channel, carries out data communication.
Primary circuit 10 and secondary side are realized based on the principle of inductively contactless power transfer by above-mentioned setting
Circuit 20 carry out contact-less power transmission, primary controller 11 and 23 specific embodiment of secondary controller referring to fig. 2, with
STM32F107VCT6 is core, 3.3v working power, and 25MHz crystal oscillator generates frequency of oscillation, is provided surely for single-chip microcontroller normal work
Fixed clock signal, peripheral circuit capacitor parallel filtering, PA13, PA14 pin be set as SWDIO (string line input/output),
SWCLK (string line clock), for downloading program, PA8, PA9, PB13, PB14 are for generating 4 road PWM drive signals.D1,D2
Whether display lamp, detection chip work normally.
For 12 specific embodiment of full bridge inverter referring to Fig. 7, use is high-power, low-power consumption, high efficiency, resistant to high temperature novel
The full bridge inverter 12 of SiCMOSFET design, is high-frequency alternating current by DC inverter, and high-frequency alternating current is mainly used for primary
Coil, secondary coil generate induced electromotive force after power conversion circuit for loading 24 equipment under electromagnetic field effect.It drives
Dynamic chip selects binary channels Si8273 isolator, and the 4 road PWM that master control generates control 4 of full-bridge as driving signal
SiCMOSFET power device being opened and turning off.Si8273 is internally integrated isolator, and primary controller 11 and full-bridge inverting is isolated
Circuit 12 avoids directly being electrically connected.
21 specific embodiment of rectification filtering module referring to fig. 4, rectifier bridge model D4SBL40 therein, the rectifier bridge highest
Pressure-resistant 400V, reverse recovery time is extremely short, forward conduction voltage drop is low, and the filtering of 120uF bulky capacitor filters out the line of DC source generation
The fuse of wave, 3A shields to entire circuit.
30 specific embodiment of wireless feedback module is the key component for realizing wireless closed-loop pressure stabilizing control, primary side referring to Fig. 5
The voltage data that controller 11 and secondary controller 23 are handled carries out the wireless transmission of data by network communications circuits, using core
The Ethernet interface RJ45, ENC28J60 and primary controller 11 and secondary side control of piece ENC28J60 and the controller equipped with SPI
The communication of device 23 processed realizes that message transmission rate is up to 10Mb/s by interrupt pin (INT) and SPI (MISO, MOSI)；Two
Dedicated pin carries out network activity state instruction, primary side is respectively set in corresponding primary and secondary side circuit 20 for connecting LED
WiFi module 31 and secondary side WiFi module 33, the two are connected by communication unit 32, and each WiFi module is there are two network interface, and one
Network interface is for connecting main control chip ENC28J60 Ethernet interface, another network interface is for connecting outer computer, two calculating
The data that machine equipment can carry out primary and secondary side by wireless network are transmitted.
22 specific embodiment of voltage acquisition module is referring to Fig. 6, including WBV342D01 direct current voltage sensor in circuit
DC voltage carry out real-time measurement, transform it into the DC voltage of standard, by A D conversion process be shown to user.
Coupler 40 includes two coupling coils of primary and secondary, and in specific embodiment, the mutual inductance of former secondary coil is M,
If the signal frequency of the received alternating current of primary coil is ω, current effective value i.It will be incuded according to coupled relation secondary coil
Voltage Uout=j ω mi out, the value of m is fixed after the completion of coupling device design, then the output voltage meeting of secondary coil
Change with the variation of the signal frequency of alternating current, i.e., the voltage that secondary circuit 20 loads 24 ends also can be with driving signal
The variation of frequency and change.If adjusting output voltage pressure stabilizing, can according to the error signal of feedback voltage and reference voltage,
The frequency of driving signal PWM is adjusted to reach the requirement of output pressure stabilizing.
It is intended to control load 24 end pressure stabilizings output, wireless feedback working principle is referring to Fig. 7, the wherein output of secondary controller 23
Voltage is transferred to primary controller 11 by wireless feedback module 30, compares with given reference voltage, obtains error signal,
Error signal passes to the parameter adjuster 111 of tool adaptation function, adjusts the signal control parameter for influencing output voltage variation,
Have reached desired output voltage.Parameter adjuster 111 is substantially a kind of algorithm, enhances the stability of system and has system
There is adaptive ability, adjusts control parameter according to system requirements and reach the desired performance indicator of system.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer, which is characterized in that including primary circuit,
Secondary circuit, wireless feedback module and coupler, wherein
The primary circuit includes primary controller, full bridge inverter and DC power supply；The secondary circuit includes secondary side control
Device, rectification filtering module and voltage acquisition module processed；The wireless feedback module includes primary side WiFi module, communication unit and pair
Side WiFi module,
Wherein, DC power supply is full bridge inverter power supply, and reference voltage inputs primary controller, and full bridge inverter includes 4
A SiCMOSFET full-bridge circuit composition, it is inverse by the DC-AC of full bridge inverter that primary controller receives the direct current provided
Become, then inductively coupled power transfer is carried out by coupler, the electric energy that secondary circuit carrys out primary circuit transmitting carries out rectification filter
The AC-DC of wave module is handled, and the direct current of conversion is passed to load, secondary circuit and primary circuit pass through wireless feedback module
Connection is established, wireless feedback channel is formed, carries out data communication.
2. the apparatus according to claim 1, which is characterized in that the primary controller and secondary controller include
STM32F107VCT6。
3. the apparatus according to claim 1, which is characterized in that the full bridge inverter includes si8273 isolator, will
Isolation is formed between 4 SiCMOSFET of the 4 road pwm signals control full-bridge of primary controller output.
4. the apparatus according to claim 1, which is characterized in that the rectification filtering module includes D4SBL40.
5. the apparatus according to claim 1, which is characterized in that the voltage acquisition module includes WBV342D01 direct current
Pressure sensor, to the DC voltage real-time measurement in circuit.
6. the apparatus according to claim 1, which is characterized in that the wireless feedback module include ENC28J60 and equipped with
The Ethernet interface RJ45 of the controller of SPI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910366439.9A CN110336384A (en) | 2019-05-05 | 2019-05-05 | A kind of wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910366439.9A CN110336384A (en) | 2019-05-05 | 2019-05-05 | A kind of wireless closed-loop voltage-stabilizing controller based on inductively coupled power transfer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1130752A2 (en) * | 2000-02-24 | 2001-09-05 | Matsushita Electric Works, Ltd. | Non-contact electrical power transmission system having function of making load voltage constant |
| CN203504261U (en) * | 2013-05-14 | 2014-03-26 | 海能达通信股份有限公司 | Wireless charging system |
| CN104981961A (en) * | 2013-02-20 | 2015-10-14 | 松下知识产权经营株式会社 | Non-contact charging device and non-contact charging method |
| CN105959379A (en) * | 2016-05-30 | 2016-09-21 | 杭州电子科技大学 | Underwater non-contact electric energy and data transmission system |
| CN106253406A (en) * | 2016-08-31 | 2016-12-21 | 成都国蓉科技有限公司 | A kind of wireless charging terminal under water |
| CN109713803A (en) * | 2019-03-21 | 2019-05-03 | 杭州电子科技大学 | A kind of water surface robot wireless charging device |
-
2019
- 2019-05-05 CN CN201910366439.9A patent/CN110336384A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1130752A2 (en) * | 2000-02-24 | 2001-09-05 | Matsushita Electric Works, Ltd. | Non-contact electrical power transmission system having function of making load voltage constant |
| CN104981961A (en) * | 2013-02-20 | 2015-10-14 | 松下知识产权经营株式会社 | Non-contact charging device and non-contact charging method |
| CN203504261U (en) * | 2013-05-14 | 2014-03-26 | 海能达通信股份有限公司 | Wireless charging system |
| CN105959379A (en) * | 2016-05-30 | 2016-09-21 | 杭州电子科技大学 | Underwater non-contact electric energy and data transmission system |
| CN106253406A (en) * | 2016-08-31 | 2016-12-21 | 成都国蓉科技有限公司 | A kind of wireless charging terminal under water |
| CN109713803A (en) * | 2019-03-21 | 2019-05-03 | 杭州电子科技大学 | A kind of water surface robot wireless charging device |
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Application publication date: 20191015 |
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