CN113036950A - Constant-current energy feeding device - Google Patents
Constant-current energy feeding device Download PDFInfo
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- CN113036950A CN113036950A CN202110215210.2A CN202110215210A CN113036950A CN 113036950 A CN113036950 A CN 113036950A CN 202110215210 A CN202110215210 A CN 202110215210A CN 113036950 A CN113036950 A CN 113036950A
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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
- H02J50/50—Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
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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
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- Power Engineering (AREA)
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Abstract
The invention discloses a constant current energy supply device, which comprises: the transmitting module, the relay module and the receiving module are connected in a wireless coupling non-contact mode in sequence, and the transmitting module transmits energy to the relay module and the receiving module in sequence; the relay module comprises a plurality of relay units, each relay unit is connected in series in a wireless coupling non-contact mode, and each relay unit and the receiving module are connected with a load; each relay unit compensates the received energy through its internal compensation loop while providing all loads with electrical energy having the same current parameters. According to the invention, each relay unit is connected in series in a wireless coupling non-contact manner, so that the size of the device is reduced, the transmitting module sequentially transmits energy to each relay unit and the receiving module, and each relay unit compensates the received energy through the compensating circuit in the relay unit, thereby realizing the purposes of providing constant current electric energy for all loads and improving the capacity and energy transmission output capacity of the device.
Description
Technical Field
The invention relates to the technical field of power systems and power electronics, in particular to a constant-current energy supply device.
Background
The wireless energy transmission technology is taken as a research hotspot at present, can support load equipment to obtain electric energy in a non-contact mode, effectively improves the safety, flexibility, reliability and service life of energy obtaining, and has important significance for improving the multi-link intelligent level of a power grid through practical research. However, the current wireless energy transmission technology type is generally that one power supply can only supply power to a single load at the same time.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that one power supply can only supply power to a single load at the same time in the wireless energy transmission technology in the prior art, thereby providing a constant-current energy supply device.
In order to achieve the purpose, the invention provides the following technical scheme:
the embodiment of the invention provides a constant-current energy supply device, which comprises: the wireless energy transmission system comprises a transmitting module, a receiving module and a relay module, wherein the transmitting module, the relay module and the receiving module are sequentially connected in a wireless coupling non-contact mode, and the transmitting module sequentially transmits energy to the relay module and the receiving module; the relay module comprises a plurality of relay units, each relay unit is connected in series in a wireless coupling non-contact mode, and each relay unit and the receiving module are connected with a load; each relay unit compensates the energy transmitted by the transmitting module or the relay unit of the previous stage through the compensation loop in the relay unit, and simultaneously provides electric energy with the same current parameters for all loads.
In one embodiment, the transmitting module transmits the initial power to the first-stage relay unit in a wireless coupling non-contact manner; each stage of relay unit obtains energy from the corresponding previous stage of relay unit, the received electric energy is used as initial electric energy, the initial electric energy is used for supplying power to a load connected with the relay unit, the residual electric energy after the load consumes energy is compensated to the level with the same current parameters as the initial electric energy, transmitting electric energy is obtained, and the transmitting electric energy is transmitted to the corresponding next stage of relay unit; the last stage of relay unit transmits the transmitted electric energy to the receiving module in a wireless coupling non-contact mode, and the receiving module supplies power to a load connected with the receiving module by using the transmitted electric energy.
In one embodiment, the transmission module includes: the high-frequency alternating current power supply, the transmitting capacitor and the transmitting inductor are sequentially connected in series to form a series loop; the transmitting capacitor and the transmitting inductor form an electric energy transmitting loop of the high-frequency alternating current power supply.
In one embodiment, each relay unit includes: the receiving compensation circuit and the transmitting compensation circuit, wherein the first end of the receiving compensation circuit is connected with the first end of the transmitting compensation circuit, the second end of the receiving compensation circuit is connected with the first end of the load, and the second end of the load is connected with the second end of the transmitting compensation circuit; the receiving compensation circuit is used for receiving the initial electric energy sent by the transmitting module or the transmitting electric energy sent by the upper-stage relay unit, transmitting the received initial electric energy or the transmitting electric energy to the load and performing primary compensation on the electric energy consumed by the load; the transmitting compensation circuit is used for compensating the electric energy consumed by the load again to obtain transmitting electric energy with the same current parameter as the initial electric energy, and transmitting the transmitting electric energy to the next-stage relay unit or the receiving module.
In one embodiment, the receiving module includes: the receiving device comprises a receiving inductor and a receiving capacitor, wherein a load, the receiving inductor and the receiving capacitor are sequentially connected in series to form a series loop; the receiving inductor and the receiving capacitor form a feed loop of the load.
In one embodiment, a receive compensation circuit includes: the first end of the first inductor is connected with the first end of the first capacitor, the second end of the first inductor is connected with the first end of the corresponding load, the second end of the first capacitor is connected with the first end of the emission compensation circuit, and the second end of the load is connected with the second end of the emission compensation circuit.
In one embodiment, an emission compensation circuit includes: the first end of the second capacitor is connected with the first end of the first capacitor and is connected with the first end of the second inductor through the third capacitor, and the second end of the second capacitor is connected with the second end of the second inductor and the second end of the load.
In one embodiment, the resonance condition of each stage of the relay unit satisfies the following equation:
wherein, ω is0Representing the operating angular frequency, L0_1Representing the transmission inductance parameter, C0_1Denotes the transmit capacitance parameter, Li_rRepresenting a first inductance parameter, C, in the relay unit 31 of each stagei_rRepresenting a first capacitance parameter, L, in the relay unit 31 of each stagei_tRepresenting a second inductance parameter, C, in the relay unit 31 of each stagefiRepresenting a second capacitance parameter, C, in the relay unit 31 of each stagei_tA third capacitance parameter is shown in each stage of the relay unit 31, where i is 1,2,3 … N, Ln_rRepresenting a received inductance parameter, Cn_rRepresenting a receive capacitance parameter.
In an embodiment, the power of the load to which the relay unit is connected is varied by varying an inductive parameter and/or a capacitive parameter of the relay unit.
The technical scheme of the invention has the following advantages:
1. according to the constant-current energy transmitting device provided by the invention, the relay module comprises a plurality of relay units, each relay unit is connected in series in a wireless coupling non-contact mode, the size of the device is reduced, the transmitting module sequentially transmits energy to the relay module and the receiving module, and each relay unit compensates the received energy through the compensating circuit in the relay unit, so that constant-current electric energy is provided for all loads, and the capacity and the energy transmission output capacity of the device are improved.
2. According to the constant-current energy transmitting device provided by the invention, the compensation loop in the relay unit compensates the received electric energy, and the inductance and the current in the relay unit meet the resonance condition, so that the output characteristics of the constant-current sources with mutually independent loads are realized, and the device cannot influence the power supply of other loads due to the fluctuation of a single-stage load. The compensation loop adopts capacitance and inductance resonance, the inductance coil shape and position errors mainly affect mutual inductance change, the inductance change degree is small, and the shape and position errors have small influence on the constant current characteristic of the output current according to the topological characteristic of the device, so the device has stronger robustness.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a composition diagram of a specific example of a constant-current energy supply device according to an embodiment of the present invention;
fig. 2 is a composition diagram of another specific example of the constant-current energy feeding device according to the embodiment of the present invention;
fig. 3 is a specific circuit structure of the constant current energy supply device according to the embodiment of the present invention;
fig. 4 is a composition diagram of a specific example of a relay unit according to an embodiment of the present invention;
fig. 5 is an equivalent circuit structure of the constant current energy supply device according to the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Examples
An embodiment of the present invention provides a constant current energy supply device, which is applied to a situation that a plurality of loads are supplied with constant current energy, and as shown in fig. 1, the constant current energy supply device includes: a transmitting module 1, a receiving module 2 and a relay module 3.
The transmitting module 1, the relay module 3 and the receiving module 2 are sequentially connected in a wireless coupling non-contact mode, the transmitting module 1 sequentially transmits energy to the relay module 3 and the receiving module 2, namely the transmitting module 1 firstly transmits the energy to the relay module 3, and then the relay module 3 transmits the energy to the receiving module 2.
As shown in fig. 1, the relay module 3 according to the embodiment of the present invention includes a plurality of relay units 31, each relay unit 31 is connected in series in a non-contact manner by wireless coupling, and each relay unit 31 and the receiving module 2 are connected to a load; each relay unit 31 compensates the energy transmitted by the transmitting module 1 or the previous stage to the relay unit through its internal compensation loop, and simultaneously provides the electric energy with the same current parameters for all the loads.
The relay module 3 according to the embodiment of the present invention is configured by a plurality of relay units 31, and adjacent relay units 31 are connected in series by a wireless coupling non-contact method. The transmitting module 1 firstly transmits energy to each relay unit 31 in sequence in a wireless coupling non-contact manner, each relay unit 31 not only supplies power to the connected load, but also compensates residual energy after power supply by using a compensation loop in the relay unit 31, so that the compensated energy is the same as the energy before power supply, and constant flow energy is performed on each load.
According to the constant-current energy transmitting device provided by the embodiment of the invention, the relay module comprises a plurality of relay units, the relay units are connected in series in a wireless coupling non-contact mode, the size of the device is reduced, the transmitting module sequentially transmits energy to the relay module and the receiving module, and each relay unit compensates the received energy through the compensating circuit in the relay unit, so that constant-current electric energy is provided for all loads, and the capacity and the energy transmission output capacity of the device are improved.
In a specific embodiment, the transmitting module 1 transmits the initial power to the first-stage relay unit in a wireless coupling non-contact manner; each stage of relay unit obtains energy from the corresponding previous stage of relay unit, the received electric energy is used as initial electric energy, the initial electric energy is used for supplying power to a load connected with the relay unit, the residual electric energy after the load consumes energy is compensated to the level with the same current parameters as the initial electric energy, transmitting electric energy is obtained, and the transmitting electric energy is transmitted to the corresponding next stage of relay unit; the last stage relay unit transmits the transmitted electric energy to the receiving module 2 in a wireless coupling non-contact mode, and the receiving module 2 supplies power to a load connected with the receiving module 2 by using the transmitted electric energy.
Specifically, as shown in fig. 2, the relay unit #1 to the relay unit # N are respectively connected to the loads #1 to # N, the receiving module 2 is connected to the load # N, the transmitting module 1 transmits initial power to the relay unit #1, the relay unit #1 supplies power to the load #1 using the initial power and compensates remaining power after the power supply to a level having the same current parameter as the initial power to obtain transmission power and transmits the transmission power to the relay unit # 2, the relay unit # 2 supplies power to the load # 2 using the initial power and compensates remaining power after the power supply to a level having the same current parameter as the initial power to obtain transmission power and transmits the transmission power to the relay unit # 3, and so on until the relay unit # N takes the transmission power received from the relay unit # N-1 as the initial power, the method comprises the steps of supplying power to a load # N by using initial electric energy, compensating the residual electric energy after power supply to a level with the same current parameter as the initial electric energy to obtain transmitting electric energy, sending the transmitting electric energy to a receiving module 2, supplying power to the load # N by using the transmitting electric energy through the receiving module 2, and providing constant-current electric energy for a plurality of loads and constant-current electric energy for a transmitting module 1 according to the method.
In a specific embodiment, as shown in fig. 3, the transmitting module 1 comprises: high frequency AC power supply V0And a transmitting capacitor C0_tAnd a transmitting inductor L0_tWherein, a high frequency AC power supply V0And a transmitting capacitor C0_tAnd a transmitting inductorL0_tAre sequentially connected in series to form a series loop; transmitting capacitor C0_tAnd a transmitting inductor L0_tForm a high-frequency AC power supply V0The power transmitting loop.
High-frequency alternating-current power supply V of the embodiment of the invention0The alternating current can be obtained by converting the alternating current into direct current through an H bridge inverter, or can be obtained by converting the alternating current into the direct current through the H bridge inverter and then performing voltage conversion through circuits such as DC-DC and the like.
In a specific embodiment, as shown in fig. 4, each relay unit 31 includes: a receive compensation circuit 311 and a transmit compensation circuit 312.
As shown in fig. 4, a first terminal of the receiving compensation circuit 311 of the embodiment of the present invention is connected to a first terminal of the transmitting compensation circuit 312, a second terminal thereof is connected to a first terminal of a load, and a second terminal of the load is connected to a second terminal of the transmitting compensation circuit 312; the receiving compensation circuit 311 is configured to receive initial electric energy sent by the transmitting module 1, or receive transmitting electric energy sent by a previous-stage relay unit, transmit the received initial electric energy or the transmitting electric energy to a load, and perform primary compensation on electric energy consumed by the load; the transmission compensation circuit 312 is configured to compensate the power consumed by the load again to obtain transmission power having the same current parameter as the initial power, and transmit the transmission power to the next-stage relay unit or the receiving module 2.
In a specific embodiment, as shown in fig. 3, the receiving module 2 includes: receiving inductance Ln_rAnd a receiving capacitor Cn_rWherein the load and receiving inductance Ln_rAnd a receiving capacitor Cn_rAre sequentially connected in series to form a series loop; receiving inductance Ln_rAnd a receiving capacitor Cn_rFeed circuit forming a load, R in FIG. 31～RNLoads, R, of the relay unit #1 to the relay unit # N, respectivelynIs the load of the receiving module 2.
In one embodiment, as shown in fig. 3, the receiving compensation circuit 311 includes: first inductance (L)1_r～LN_r) And a first capacitor (C)1_r～CN_r) Wherein the first inductance (L)1_r～LN_r) To (1) aOne terminal and the first capacitor (C)1_r～CN_r) Is connected with a first end of the load (R) and a second end of the load (R) is connected with a corresponding load (R)1～RN) Is connected to a first terminal of a first capacitor (C)1_r～CN_r) Is connected to a first terminal of the emission compensation circuit 312 and a second terminal of the load is connected to a second terminal of the emission compensation circuit 312.
In one embodiment, as shown in FIG. 3, the emission compensation circuit 312 includes: a second capacitance (C)f1～CfN) A third capacitor (C)1_t～CN_t) And a second inductor (L)1_t～LN_t) Wherein the second capacitance (C)f1～CfN) First terminal and first capacitor (C)1_r～CN_r) Is connected to and through a third capacitor (C)1_t～CN_t) And a second inductance (L)1_t～LN_t) Is connected to a second capacitor (C)f1～CfN) Second terminal and second inductance (L)1_t～LN_t) And a second end of the load is connected to the second end of the load.
In a specific embodiment, the first inductance (L) of each relay unit 311_r～LN_r) As a receiving coil, a second inductor (L)1_t～LN_t) The receiving coil is a transmitting coil and receives the energy transmitted by the upper-stage relay unit or the transmitting module 1, and the transmitting coil transmits the compensated energy to the lower-stage relay unit or the receiving module 2.
To realize the constant current power supply for each load, the current direction of each inductor is defined as shown in fig. 3, and the mutual inductance of adjacent inductors is M1～MNWhere N is the number of the relay units 31, so the coupling coefficient between adjacent relay units 31 is as shown in formula (1):
considering the influence of the parasitic resistance of each inductor in fig. 3 on the energy, the constant current energy feeding device circuit shown in fig. 3 is equivalent to the equivalent circuit model shown in fig. 5, I0_tFor transmitting inductance L0_tCurrent of r0_tFor transmitting inductance L0_tParasitic resistance of M0_1For transmitting inductance L0_tFirst inductance L with repeater Unit #11_rMutual inductance of (a) (. omega.)0Is the angular frequency, I1_rFirst inductance L of repeater unit #11_rCurrent of r1_rFirst inductance L of repeater unit #11_rParasitic resistance of (I)1_tSecond inductance L of repeater unit #11_tCurrent of r1_tSecond inductance L of repeater unit #11_tParasitic resistance of M1_2Second inductance L of repeater unit #11_tFirst inductance L with repeater Unit #12_rMutual inductance of (I)2_rFirst inductance L of repeater unit # 22_rCurrent of r2_rFirst inductance L of repeater unit # 22_rParasitic resistance of (I)2_tSecond inductance L of repeater unit # 22_tCurrent of r2_tSecond inductance L of repeater unit # 22_tParasitic resistance of M2_3Second inductance L of repeater unit # 22_tFirst inductance L with repeater unit # 33_rMutual inductance of (I)n_rTo receive the inductance Ln_rCurrent of rn_rTo receive the inductance Ln_rParasitic resistance of MN_nSecond inductance L for repeater unit # NN_tMutual inductance with the contact inductance.
According to kirchhoff's voltage law, a voltage equation of each loop can be obtained, as shown in formula (2).
Wherein Z is0_t＝r0_t+j(ω0L0_t–1/ω0C0_t)，Z1_r＝R1+r1_r+j(ω0L1_r–1/ω0C1_r–1/ω0Cf1)，Z1_t＝r1_t+j(ω0L1_t–1/ω0C1_t–1/ω0Cf1)，…，Zn_r＝Rn+rn_r+j(ω0Ln_r–1/ω0Cn_r)，ω0Is the angular frequency of the device.
Therefore, in order to realize constant current power, each relay unit 31 should satisfy the resonance condition in the formula (3).
Wherein, ω is0Representing the operating angular frequency, L0_1Representing the transmission inductance parameter, C0_1Denotes the transmit capacitance parameter, Li_rRepresenting a first inductance parameter, C, in the relay unit 31 of each stagei_rRepresenting a first capacitance parameter, L, in the relay unit 31 of each stagei_tRepresenting a second inductance parameter, C, in the relay unit 31 of each stagefiRepresenting a second capacitance parameter, C, in the relay unit 31 of each stagei_tA third capacitance parameter is shown in each stage of the relay unit 31, where i is 1,2,3 … N, Ln_rRepresenting a received inductance parameter, Cn_rRepresenting a receive capacitance parameter.
In one embodiment, under ideal conditions, the parasitic resistance of the inductor is small and negligible, so substituting (3) into (2) can obtain each inductor current (i.e., load current) as:
as can be seen from the formula (4), each load current does not depend on the resistance value of the load resistor, so that the constant-current energy feeding device provided by the embodiment of the present invention can provide constant-current electric energy, load current and a compensation capacitor (the second capacitor C) for each loadfi) In this regard, since the capacitance is relatively stable, the load current is also relatively stable. Simultaneously, the power of the load connected with the relay unit is changed by changing the inductance parameter and/or the capacitance parameter of the relay unit, namely the load power can be independently controlled, and the constant-current energy transmitting device cannot be caused by the fluctuation of a single-stage loadAffecting the other loads supplying power.
According to the constant-current energy transmitting device provided by the embodiment of the invention, the compensation loop in the relay unit compensates the received electric energy, and the inductance and the current in the relay unit meet the resonance condition, so that the output characteristics of the constant-current sources with mutually independent loads are realized, and the device cannot influence the power supply of other loads due to the fluctuation of a single-stage load. The compensation loop adopts capacitance and inductance resonance, the inductance coil shape and position errors mainly affect mutual inductance change, the inductance change degree is small, and the shape and position errors have small influence on the constant current characteristic of the output current according to the topological characteristic of the device, so the device has stronger robustness.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (9)
1. A constant-current energy feeding device is characterized by comprising: the wireless energy transmission system comprises a transmitting module, a receiving module and a relay module, wherein the transmitting module, the relay module and the receiving module are sequentially connected in a wireless coupling non-contact mode, and the transmitting module sequentially transmits energy to the relay module and the receiving module;
the relay module comprises a plurality of relay units, each relay unit is connected in series in a wireless coupling non-contact mode, and each relay unit and the receiving module are connected with a load;
each relay unit compensates the energy transmitted by the transmitting module or the relay unit of the previous stage through the compensation loop in the relay unit, and simultaneously provides electric energy with the same current parameters for all loads.
2. The constant current energy feeding device according to claim 1,
the transmitting module transmits initial electric energy to the first-stage relay unit in a wireless coupling non-contact mode;
each stage of relay unit obtains energy from the corresponding previous stage of relay unit, the received electric energy is used as initial electric energy, the initial electric energy is used for supplying power to a load connected with the relay unit, the residual electric energy after the load consumes energy is compensated to the level with the same current parameters as the initial electric energy, transmitting electric energy is obtained, and the transmitting electric energy is transmitted to the corresponding next stage of relay unit;
the last stage of relay unit transmits the transmitted electric energy to the receiving module in a wireless coupling non-contact mode, and the receiving module supplies power to a load connected with the receiving module by using the transmitted electric energy.
3. The constant-current energy feeding device according to claim 1, wherein the transmitting module comprises: a high-frequency alternating current power supply, a transmitting capacitor and a transmitting inductor, wherein,
the high-frequency alternating current power supply, the transmitting capacitor and the transmitting capacitor are sequentially connected in series to form a series loop;
and the transmitting capacitor and the transmitting inductor form an electric energy transmitting loop of the high-frequency alternating current power supply.
4. The constant-current energy feeding device according to claim 3, wherein each of the relay units includes: a reception compensation circuit and a transmission compensation circuit, wherein,
the first end of the receiving compensation circuit is connected with the first end of the transmitting compensation circuit, the second end of the receiving compensation circuit is connected with the first end of the load, and the second end of the load is connected with the second end of the transmitting compensation circuit;
the receiving compensation circuit is used for receiving the initial electric energy sent by the transmitting module or the transmitting electric energy sent by the upper-stage relay unit, transmitting the received initial electric energy or the transmitting electric energy to the load and performing primary compensation on the electric energy consumed by the load;
the transmitting compensation circuit is used for compensating the electric energy consumed by the load again to obtain transmitting electric energy with the same current parameter as the initial electric energy, and transmitting the transmitting electric energy to the next-stage relay unit or the receiving module.
5. The constant-current energy feeding device according to claim 3, wherein the receiving module comprises: a receiving inductor and a receiving capacitor, wherein,
the load, the receiving inductor and the receiving capacitor are sequentially connected in series to form a series loop;
the receiving inductor and the receiving capacitor form a feed loop of the load.
6. The constant current energy feeding device according to claim 4, wherein the reception compensation circuit comprises: a first inductor and a first capacitor, wherein,
the first end of the first inductor is connected with the first end of the first capacitor, the second end of the first inductor is connected with the first end of the corresponding load, the second end of the first capacitor is connected with the first end of the emission compensation circuit, and the second end of the load is connected with the second end of the emission compensation circuit.
7. The constant current energy delivery device of claim 6, wherein the emission compensation circuit comprises: a second capacitor, a third capacitor and a second inductor, wherein,
the first end of the second capacitor is connected with the first end of the first capacitor and is connected with the first end of the second inductor through the third capacitor, and the second end of the second capacitor is connected with the second end of the second inductor and the second end of the load.
8. The constant current energy feeding device according to claim 7, wherein the resonance condition of each stage of the relay unit satisfies the following equation:
wherein, ω is0Representing the operating angular frequency, L0_1The parameter representing the inductance of the transmission is,C0_1denotes the transmit capacitance parameter, Li_rRepresenting a first inductance parameter, C, in the relay unit 31 of each stagei_rRepresenting a first capacitance parameter, L, in the relay unit 31 of each stagei_tRepresenting a second inductance parameter, C, in the relay unit 31 of each stagefiRepresenting a second capacitance parameter, C, in the relay unit 31 of each stagei_tA third capacitance parameter is shown in each stage of the relay unit 31, where i is 1,2,3 … N, Ln_rRepresenting a received inductance parameter, Cn_rRepresenting a receive capacitance parameter.
9. The constant current energy feeding device according to claim 7, wherein the power of the load connected thereto is changed by changing the inductance parameter and/or the capacitance parameter of the relay unit.
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|---|---|---|---|---|
| CN113541323A (en) * | 2021-07-21 | 2021-10-22 | 东南大学 | Multi-capacitive energy transmission system with multiple constant current outputs |
| CN113541323B (en) * | 2021-07-21 | 2023-08-22 | 东南大学 | Multi-capacity energy transmission system with multi-constant-current output |
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