CN104767292A - Direct-current load wireless power supply system achieving self-adaptive switching among multiple voltage classes - Google Patents
Direct-current load wireless power supply system achieving self-adaptive switching among multiple voltage classes Download PDFInfo
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- CN104767292A CN104767292A CN201510190332.5A CN201510190332A CN104767292A CN 104767292 A CN104767292 A CN 104767292A CN 201510190332 A CN201510190332 A CN 201510190332A CN 104767292 A CN104767292 A CN 104767292A
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- 239000003990 capacitor Substances 0.000 claims abstract description 17
- 238000004146 energy storage Methods 0.000 claims abstract description 13
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 13
- 239000003381 stabilizer Substances 0.000 claims description 20
- 230000006978 adaptation Effects 0.000 claims description 10
- 238000007667 floating Methods 0.000 claims description 9
- 230000002452 interceptive effect Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 25
- 230000008859 change Effects 0.000 abstract description 2
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- 238000006243 chemical reaction Methods 0.000 description 3
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- 230000005611 electricity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
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Classifications
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- H02J7/025—
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- H02J5/005—
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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Abstract
The invention discloses a direct-current load wireless power supply system achieving self-adaptive switching among multiple voltage classes. The direct-current load wireless power supply system comprises a wireless energy emission system, a wireless energy receiving system and a voltage class adjustable type anti-interference voltage stabilizing system. The voltage class adjustable type anti-interference voltage stabilizing system comprises a high-energy-density magnetic suspension flywheel energy storage system, a permanent magnet brushless direct-current generator, a voltage detection circuit, function switches, a voltage stabilization energy storage capacitor array and a power voltage stabilization tube array, wherein the function switches are controlled through switch control signals. The voltage class adjustable type anti-interference voltage stabilizing system converts high-frequency wireless electric energy into mechanical energy to be stored and then converts the mechanical energy into direct-current electric energy, and voltage at appropriate classes is selected through signal control so that power can be supplied to loads. By means of energy form change of electric energy-mechanical energy-electric energy, the problem that energy output anti-interference capability of a wireless energy transmission system is poor is solved, and the direct-current load wireless power supply system can be applied to wireless power supply of direct-current loads at multiple voltage classes.
Description
Technical field
The present invention relates to the anti-interference voltage-stabilizing system of a kind of wireless power transmission, particularly relate to the DC load wireless power supply system that between a kind of multi-voltage grade, self adaptation switches.
Background technology
In recent years, along with people's living standard improve constantly and explore intramundane gradually deeply, people there has also been new requirement to the transmission means of electric energy and transmission quality.Traditional delivery of electrical energy is mainly directly contacted by wire or conductor and carries out, and the spark that contact produces, skimming wear, carbon deposit involve that energized conductor is exposed etc. brings series of problems.Wireless power transmission is a kind of technology utilizing wireless radio transmission electric energy, proposed by Ni Gula tesla the earliest, compared with traditional delivery of electrical energy mode, the direct connection of electricity is there is not between power supply and electricity consumption in the process of wireless power transmission, avoid bare exposed conductor and contact sparking, there is the advantage such as use safety, convenience, thus receive concern and the attention of numerous research workers.Wireless power transmission technical applications widely, particularly in military affairs, mine, under water, be with a wide range of applications under the special and adverse circumstances of medical treatment, oil, traffic etc.Therefore, the research for wireless power transmission technology has very profound significance.
For the DC load having power supply voltage level, often by the access of load, occurrence frequency drift or power such as cannot to export at the series of problems to radio energy transmission system, and this has influence on the practical development of wireless power transmission technology.And current conventional bridge rectifying device is to the unworthiness of high frequency radio energy transmission system, be mainly reflected in virtual height voltage, higher harmonics coefficient and the rectifying tube heating problem such as serious, the hypersensitivity that wireless power transmission technology accesses load can not be met, and do not possess versatility.
Summary of the invention
Goal of the invention: for above-mentioned prior art, proposes the DC load wireless power supply system that between a kind of multi-voltage grade, self adaptation switches, solves the problem of radio energy transmission system Energy transmission poor anti jamming capability, and be suitable for the load of different electric pressure.
Technical scheme: the DC load wireless power supply system that between a kind of multi-voltage grade, self adaptation switches, comprises the adjustable anti-interference voltage-stabilizing system of energy wireless transmitting system, energy wireless receiving system and electric pressure; Described energy wireless transmitting system passes through magnetic resonance mode by delivery of electrical energy to described energy wireless receiving system; The adjustable anti-interference voltage-stabilizing system of described electric pressure is used for exporting direct current of voltage regulation according to load required voltage grade Automatic adjusument;
Wherein, the adjustable anti-interference voltage-stabilizing system of described electric pressure comprises energy storage system for magnetic floating flywheel, DC permanent-magnetic brushless generator, voltage detecting circuit, voltage sorter controller, controlled interactive switch array, voltage stabilizing storage capacitor array, power voltage-stabiliser tube array; Described energy storage system for magnetic floating flywheel is connected with DC permanent-magnetic brushless generator, and the electrical energy inputs of energy storage system for magnetic floating flywheel connects described energy wireless receiving system; Described voltage stabilizing storage capacitor array is made up of the first to the n-th storage capacitor successively sequential series, described power voltage-stabiliser tube array is made up of the first to the n-th power voltage-stabiliser tube successively sequential series, and described voltage stabilizing storage capacitor array and power voltage-stabiliser tube array in parallel are at the current output terminal of described DC permanent-magnetic brushless generator; Described controlled interactive switch array comprises n group controllable function switch team, the controllable function switch (S that i-th group of controllable function switch team opens or turn off by two simultaneously
i1, S
i2) composition, wherein i=1.2.3...n; First controllable function switch (S in described i-th group of controllable function switch team
i1) one end and i-th, (i+1) individual storage capacitor tie point be connected, described first controllable function switch (S
i1) the other end and i-th, (i+1) individual power voltage-stabiliser tube tie point be connected, described second controllable function switch (S
i2) one end and i-th, (i+1) individual power voltage-stabiliser tube tie point be connected, described second controllable function switch (S
i2) the other end connect the negative input of load, the electrode input end of described load connects the cathode output end of described DC permanent-magnetic brushless generator; The DC voltage value that described voltage detecting circuit exports for detecting DC permanent-magnetic brushless generator, described voltage sorter controller closes for controlling one group of switch in described n group controllable function switch team according to the difference of described DC voltage value and load required voltage grade.
Beneficial effect: the DC load wireless power supply system that between a kind of multi-voltage grade of the present invention, self adaptation switches comprises the adjustable anti-interference voltage-stabilizing system of energy wireless transmitting system, energy wireless receiving system and electric pressure.Energy wireless transmitting system is by magnetic resonance mode by delivery of electrical energy extremely described energy wireless receiving system, and the adjustable anti-interference voltage-stabilizing system of electric pressure is used for exporting direct current of voltage regulation according to load required voltage grade Automatic adjusument.The DC load wireless power supply system that between multi-voltage grade of the present invention, self adaptation switches can require higher application scenario application to the quality of power supply, as the online charging etc. to lithium battery, and the unworthiness of conventional bridge rectifying device to high frequency radio energy transmission system can be solved, be mainly reflected in virtual height voltage, in higher harmonics coefficient and the rectifying tube heating problem such as serious, by the change of the form of energy of electric energy-mechanic energy-electric energy, solve the problem of radio energy transmission system Energy transmission poor anti jamming capability, can be applicable to the wireless power of multiple voltage grade DC load, can self adaptation switch between different electric pressure, improve flexibility and the stability of galvanic load supplying.
Accompanying drawing explanation
Fig. 1 is the DC load wireless power supply system structural representation that between kind of multi-voltage grade, self adaptation switches;
Fig. 2 is switch control rule schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention done and further explain.
As shown in Figure 1, the DC load wireless power supply system that between a kind of multi-voltage grade, self adaptation switches comprises the adjustable anti-interference voltage-stabilizing system of energy wireless transmitting system, energy wireless receiving system and electric pressure.Energy wireless transmitting system comprises high frequency power source system, is connected to high frequency power source system output after launching resonator and high frequency adjustable compensation capacitances in series.Energy wireless receiving system comprises the reception resonator and high frequency adjustable compensation electric capacity that are connected in series, also comprises Energy Coupling coil.Energy wireless transmitting system passes through magnetic resonance mode by delivery of electrical energy to energy wireless receiving system, the high frequency radio magnetic energy received on resonator receives and is converted into high-frequency electrical energy by Energy Coupling coil, and be connected with the adjustable anti-interference voltage-stabilizing system of electric pressure, the adjustable anti-interference voltage-stabilizing system of electric pressure is used for exporting direct current of voltage regulation according to load required voltage grade Automatic adjusument.
The adjustable anti-interference voltage-stabilizing system of electric pressure comprises energy storage system for magnetic floating flywheel, DC permanent-magnetic brushless generator, voltage detecting circuit, voltage sorter controller, controlled interactive switch array, voltage stabilizing storage capacitor array, power voltage-stabiliser tube array.Energy storage system for magnetic floating flywheel is connected with DC permanent-magnetic brushless generator, and its electrical energy inputs connects energy wireless receiving system.Voltage stabilizing storage capacitor array is made up of the first to the n-th storage capacitor successively sequential series, power voltage-stabiliser tube array is made up of the first to the n-th power voltage-stabiliser tube successively sequential series, and voltage stabilizing storage capacitor array and power voltage-stabiliser tube array in parallel are at the current output terminal of DC permanent-magnetic brushless generator.Controlled interactive switch array comprises n group controllable function switch team, the controllable function switch S that i-th group of controllable function switch team opens or turn off by two simultaneously
i1, S
i2form first controllable function switch S in i-th group of controllable function switch team
i1one end and i-th, (i+1) individual storage capacitor tie point be connected, first controllable function switch S
i1the other end and i-th, (i+1) individual power voltage-stabiliser tube tie point be connected; Second controllable function switch S
i2one end and i-th, (i+1) individual power voltage-stabiliser tube tie point be connected, second controllable function switch S
i2the other end connect the negative input of load, the electrode input end of load connects the cathode output end of DC permanent-magnetic brushless generator; N group controllable function switch team all connects by the connected mode of i-th group of controllable function switch team.The DC voltage value that voltage detecting circuit exports for detecting DC permanent-magnetic brushless generator, voltage sorter controller is closed according to a certain group of switch in difference the controls n group controllable function switch team of DC voltage value and load required voltage grade.The concrete model according to each element in output voltage hierarchical selection controlled interactive switch array, voltage stabilizing storage capacitor array, power voltage-stabiliser tube array and quantity is needed in practical application.
In the adjustable anti-interference voltage-stabilizing system of electric pressure, power conversion mode is high-frequency electrical energy-mechanical energy-low-frequency electrical energy-direct current energy, concrete, energy storage system for magnetic floating flywheel adopts the close magnetically levitated flywheel of high energy to export reforming unit and the primary energy material of energy as radio energy transmission system, mainly the high-frequency electrical energy that Energy Coupling coil obtains from being coupled is converted into green mechanical energy reliably, its energy acquisition and stable storage also can shield electromagnetic interference, and this is a step of voltage-stabilizing system key.DC permanent-magnetic brushless generator is by energy storage device of magnetic suspension flywheel Direct driver, be the electric energy that load can be taken by the changes mechanical energy stored in close for high energy magnetically levitated flywheel, so both by isolated for high-frequency electrical energy output, can avoid again the impact of different loads access on radio energy transmission system output performance.
Voltage detecting circuit detects the voltage that DC permanent-magnetic brushless generator exports, voltage sorter controller carries out numeric ratio pair by the size of the voltage that detected by voltage detecting circuit and load required voltage, voltage sorter controller sends switch controlling signal according to the numerical value of gained ratio, and in control n group controllable function switch team, in a certain group, two switches close simultaneously.By the controllable function switch team opened needed for the gradable selection of switch controlling signal, the number of power demand voltage-stabiliser tube can be selected, with the power demands of satisfied different electric pressure load.Wherein, voltage sorter controller comprises battery voltage detection chip LTC2943, can automatically detect charging voltage needed for load by this chip.
Compared to prior art, there is following features: 1, in radio energy transmission system, adopt multi-energy switch technology, by uppity high-frequency electromagnetic by various ways transformation of energy, power conversion mode is high-frequency electrical energy-mechanical energy-low-frequency electrical energy-direct current energy, finally obtain the direct current energy that electric pressure is controlled, meet the requirement of low-power load.2, the high-frequency electrical energy utilizing flywheel energy storage system not easily to be taken by radio energy transmission system is converted into green mechanical energy reliably, shield electromagnetic interference, energy acquisition and stable storage, avoid load simultaneously and directly access impact on radio energy transmission system transmission performance.3, DC permanent-magnetic brushless generator is adopted directly to be connected with energy accumulation device for fly wheel, be the electric energy that load can be taken by the changes mechanical energy stored in flywheel, this is the energy secondary conversion equipment in radio energy transmission system, also being secondary isolation output device, is the direct energy source of DC load.4, the size of voltage detecting circuit and load required voltage is adopted to carry out numeric ratio pair, and numerical result is exported in voltage sorter controller, carry out the break-make of the controlled interactive switch of adaptive control, can meet load required voltage grade size, all adjustments are automatic adjustment.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. the DC load wireless power supply system that between multi-voltage grade, self adaptation switches, is characterized in that: comprise the adjustable anti-interference voltage-stabilizing system of energy wireless transmitting system, energy wireless receiving system and electric pressure; Described energy wireless transmitting system passes through magnetic resonance mode by delivery of electrical energy to described energy wireless receiving system; The adjustable anti-interference voltage-stabilizing system of described electric pressure is used for exporting direct current of voltage regulation according to load required voltage grade Automatic adjusument;
Wherein, the adjustable anti-interference voltage-stabilizing system of described electric pressure comprises energy storage system for magnetic floating flywheel, DC permanent-magnetic brushless generator, voltage detecting circuit, voltage sorter controller, controlled interactive switch array, voltage stabilizing storage capacitor array, power voltage-stabiliser tube array; Described energy storage system for magnetic floating flywheel is connected with DC permanent-magnetic brushless generator, and the electrical energy inputs of energy storage system for magnetic floating flywheel connects described energy wireless receiving system; Described voltage stabilizing storage capacitor array is made up of the first to the n-th storage capacitor successively sequential series, described power voltage-stabiliser tube array is made up of the first to the n-th power voltage-stabiliser tube successively sequential series, and described voltage stabilizing storage capacitor array and power voltage-stabiliser tube array in parallel are at the current output terminal of described DC permanent-magnetic brushless generator; Described controlled interactive switch array comprises n group controllable function switch team, the controllable function switch (S that i-th group of controllable function switch team opens or turn off by two simultaneously
i1, S
i2) composition, wherein i=1.2.3...n; First controllable function switch (S in described i-th group of controllable function switch team
i1) one end and i-th, (i+1) individual storage capacitor tie point be connected, described first controllable function switch (S
i1) the other end and i-th, (i+1) individual power voltage-stabiliser tube tie point be connected, described second controllable function switch (S
i2) one end and i-th, (i+1) individual power voltage-stabiliser tube tie point be connected, described second controllable function switch (S
i2) the other end connect the negative input of load, the electrode input end of described load connects the cathode output end of described DC permanent-magnetic brushless generator; The DC voltage value that described voltage detecting circuit exports for detecting DC permanent-magnetic brushless generator, described voltage sorter controller closes for controlling one group of switch in described n group controllable function switch team according to the difference of described DC voltage value and load required voltage grade.
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| CN201510190332.5A CN104767292A (en) | 2015-04-21 | 2015-04-21 | Direct-current load wireless power supply system achieving self-adaptive switching among multiple voltage classes |
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| CN201510190332.5A CN104767292A (en) | 2015-04-21 | 2015-04-21 | Direct-current load wireless power supply system achieving self-adaptive switching among multiple voltage classes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979916A (en) * | 2015-07-30 | 2015-10-14 | 郑州携能通信技术有限公司 | Microwave energy harvesting method and microwave energy harvesting device |
| CN107546834A (en) * | 2016-06-27 | 2018-01-05 | 深圳市华思旭科技有限公司 | Power supply assembly and method |
| CN108297719A (en) * | 2017-01-12 | 2018-07-20 | 福特全球技术公司 | integrated wireless power transmission system |
| CN109502032A (en) * | 2018-11-28 | 2019-03-22 | 中电科（德阳广汉）特种飞机系统工程有限公司 | A kind of power supply system and autogyro |
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Cited By (5)
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|---|---|---|---|---|
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Application publication date: 20150708 |