CN107204656B

CN107204656B - Rapid, efficient and boosting charging method based on generalized resonance

Info

Publication number: CN107204656B
Application number: CN201710331529.5A
Authority: CN
Inventors: 唐德尧
Original assignee: Tang Zhi Science And Technology Development Of Hu ' Nan Co Ltd
Current assignee: Beijing Tangzhi Science & Technology Development Co ltd; Tangzhi Science & Technology Hunan Development Co ltd
Priority date: 2017-05-11
Filing date: 2017-05-11
Publication date: 2020-03-27
Anticipated expiration: 2037-05-11
Also published as: CN107204656A

Abstract

The invention discloses a rapid, efficient and boosting charging method based on generalized resonance, which solves the two problems that an environment energy acquisition device cannot collect extremely low voltage and an energy storage device of an electric vehicle is not high in rapid charging efficiency. The invention adds RLC series resonance circuit at AC energy output end to make LC series resonance frequency FD become 1/[2 pi ] (LC)^0.5]Equal to or close to the frequency FN of the ac energy voltage and takes the voltage across the capacitor C to feed the rectified charging reservoir. Wherein the resistance R of the RLC series resonant circuit mainly comprises the internal resistance RN of the energy source and the increased resistance RW, R ═ RN + RW, the inductance L of the RLC series resonant circuit mainly comprises the internal inductance LN of the energy source and the increased inductance LW, L ═ LN + LW. The energy storage capacitor and the battery are boosted and rapidly charged by the low-voltage alternating current power supply, and the collection and storage capacity of the energy storage capacitor and the battery to the environment extremely low alternating current energy and the efficiency of rapidly charging the energy storage device of the electric vehicle are improved.

Description

Rapid, efficient and boosting charging method based on generalized resonance

Technical Field

The invention belongs to the field of energy collection and management electronic circuits and quick charging, and particularly relates to a quick, efficient and boost charging method based on generalized resonance.

Background

The most efficient principle of classical theory for power transfer/harvesting is impedance matching. It means: when the energy source has an internal resistance R, the "load resistance" at which the load achieves the highest efficiency should also be equal to R. As shown in the attached drawings 1-1 to 1-4: when the no-load "open circuit voltage" of the energy source is 10V and the internal resistance RN is 5 Ω, the maximum "load power" can be obtained as 5W only when the load resistance RW is 5 Ω, but the energy source power is 10W and the energy source internal consumption is 5W, and the energy source utilization rate is only 50%.

However, when the super capacitor or/and battery is charged with ac power, as shown in fig. 1-4, the impedance of the power source is very low under most conditions, and the apparent impedance of the load (super capacitor and battery) varies, and there is no impedance match. In particular, the classical charging and energy storage technology is to directly rectify an alternating energy voltage into a direct current to charge a capacitor or/and a battery, and two limit states exist:

a, the 'load voltage' of the stored energy is always lower than the 'open circuit voltage' of the energy source, such as the attached figures 1-5 and the attached figures 1-6;

and B, when the energy open-circuit voltage is lower than the stored load voltage, the charging is stopped, and the charging effect is zero.

The limitations of the above limits, leading to the classical (rectified ac) dc energy storage charging, present serious problems:

when the peak value of the alternating current energy voltage is lower than the stored voltage, the energy storage device cannot be charged, so that the precious energy obtained occasionally cannot be stored and utilized; the limit energy storage capacity Q of the energy storage capacitor CC depends on the highest energy voltage UI: q is less than or equal to UI CC.

Due to the above limitation, if the electric vehicle needs about 1000V, the power frequency grid energy source of 220VRMS (311Vp) can only charge the energy storage super capacitor to 310Vp by using the classical rectification charging method, so that it is necessary to charge a plurality of super capacitors in parallel (to 310V) and supply power to the load by using a plurality of (for example, 3) super capacitors in series (output 930V). Therefore, the problem of complicated control of parallel charging and series power conversion is caused, and the peak current of parallel charging of N capacitors with the same capacitance C is N times of that of a single capacitor; and a longer charging time is required to reduce the charging peak current. This in turn poses a problem of not being able to be charged quickly.

Due to the limitation of the classical rectification charging method, the energy storage capacitor CC cannot be continuously charged when the energy storage capacitor CC is charged to a voltage close to the UCC and the UI voltage by the energy voltage UI of the power source obtaining device for converting the environmental energy into the electric energy of the (electric) source-free wireless electronic equipment; when the voltage UCC of the energy storage capacitor CC is larger than the energy source voltage UI of the power source obtaining device, the energy source can not be continuously utilized for charging and increasing the energy storage; when the voltage UE of the energy storage battery E is larger than the energy source voltage UI of the power source obtaining device, the energy source can not be continuously utilized for charging and increasing the energy storage.

The main means of the prior art in solving the problem of high efficiency charging and energy storage is to reduce the voltage drop of the rectifier, such as using schottky diode (the typical voltage drop is 0.2V, and the typical voltage drop of the ordinary diode is above 0.7V), even using VMOS triode controlled by the detection logic circuit (the typical voltage drop is about 0.01V) for rectification, but still cannot solve the problem of continuously charging the energy storage capacitor CC or battery E with stored voltage VCC, VEE higher than the energy voltage UI; the main means for charging the high-voltage energy storage capacitor or battery with the low voltage obtained by rectifying the low-voltage energy source is to use a boost DC/DC converter, which still cannot solve the problem of obtaining as much energy as possible from the energy source.

Therefore, there is a need to solve the problem of fast, efficient, boost charging of energy storage devices (supercapacitors or/and rechargeable batteries).

Disclosure of Invention

Aiming at the technical defects of the traditional method, the invention provides a rapid, efficient and boosting charging method based on generalized resonance.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a fast, high-efficient, boost charging method based on generalized resonance, in order to realize when the voltage UI of the alternating current energy is lower than the voltage UCC of the expected energy storage capacitor CC, or when the voltage UI of the energy is lower than the voltage UE of the energy storage battery E, still can use the voltage UI of the energy to continue charging the energy storage capacitor CC or the energy storage battery E, characterized by that: an RLC series resonance circuit is added at an energy output voltage end to implement RLC generalized resonance boosting, and the series resonance frequency FD of LC is 1/[2 pi ] (LC)^0.5]Equal to or close to the frequency FN of the voltage of the alternating energy source, with a deviation not greater than 5%, and taking the voltage from the two ends of the resonant capacitor C to supply the rectified charged tank circuit, wherein the resistance R of the RLC series resonant circuit mainly comprises the internal resistance RN of the energy source and the added resistance RW, R-RN + RW, namely: when the series resistor R is needed and the energy source already contains the internal resistor RN, the series resistor RW (R-RN) is added externally; the inductance L of the RLC series resonant circuit mainly comprises the internal inductance LN of the energy source and the added inductance LW, L ═ LN + LW, i.e.: when the series inductance L is required and the energy source already contains the internal inductance LN, the series inductance LW is added externally.

Fig. 1-7 are schematic diagrams illustrating a generalized resonant fast, efficient, boost charging device, in which an energy source with a frequency of 50Hz and an amplitude of 100Vp has an internal resistance RN of 3.141593 Ω, an internal inductance LN of 100mH, a resonant capacitor with an external C of 101.32uF from the external end of LW to the common ground, and a resonant frequency of RLC FD, which is equal to the voltage frequency FN of the energy source of 50 Hz; the "capacitor boosting" voltage is taken from both ends of the resonant capacitor C and supplied to the rectifier GR1, and the output terminal of the rectifier GR1 is connected to the storage capacitor CC at 1mF, and outputs the "storage voltage".

When fig. 1-7 are set in the classical charging mode, i.e. with switch WS1 disconnecting resonant capacitor C. FIGS. 1 to 8 are test charts of the classical charging mode in a 1-second charging process, the average charging power is 4.84W/s, and the final "energy storage voltage" after 1 second is 96.41V, which is lower than the "open circuit voltage" of the energy source, 100 Vp; the energy stored in the storage capacitor CC is 4.65W.

When fig. 1-7 are set in the broad resonant charging mode as in fig. 1-9, the resonant capacitor C is switched on as WS 1. Fig. 1-10 are test charts of the generalized resonance charging mode in the charging process of 1 second, the average charging power 287W/s, the charging time is only 0.06 second to 96.41V, and the final "energy storage voltage" is 755V after 1s, which is higher than the "open circuit voltage" 100Vp of the energy source; the energy stored in the storage capacitor CC is 286W.

Comparing the above data, it can be seen that after 1 second charging, the fast, high-efficiency, boost charging method based on generalized resonance of the present invention is compared with the classical charging method, the average charging power is raised by 287/4.48 to 64 times, the energy storage voltage is raised by 755/96.41 to 7.83 times, the stored energy is raised by 286/4.65 to 61 times, and the charging speed to the final voltage of the classical final charging is raised by 1/0.06 to 16 times. The simulation effect shows that: the generalized resonance boosting charging method solves the problems that the charging is stopped and the charging effect is zero when the energy storage voltage is always lower than the energy open-circuit voltage and the energy open-circuit voltage is lower than the stored energy storage voltage existing in the classical charging method.

The basic principle of the rapid, high-efficiency and boosting charging method based on the generalized resonance is as follows:

in the implementation of the RLC generalized resonance boosting, when the voltage of the resonance capacitor C has a voltage close to (with a deviation not greater than 5%) peak value and is higher than the energy storage voltage of the energy storage capacitor CC plus the rectifier voltage drop of the rectifying charging energy storage circuit, the current from the alternating current energy source is not supplied to the LC resonance energy storage alone any more, but mainly turns to the rectifier for rectification and then charges the energy storage capacitor CC. The instantaneous alternating energy current is equal to the voltage drop of the instantaneous energy open circuit voltage on the internal resistance R divided by the internal resistance R of the energy; the "imaginary" power of the energy current, which is still part of the current flowing through L into the capacitor C, is stored in the LC and enhances its generalized resonance, which is not taken as useful (real) work consumption, but instead provides for the next cycle to continue to achieve generalized resonance boost charging until the peak voltage of the resonant capacitor C rises (the boost factor determined by the RLC parameters design XL XC G R) to G times the peak value of the "open circuit voltage" of the energy.

Since the phase difference between the terminal voltages of L and C of the RLC series resonant circuit is 90 degrees from the current phase difference, the timing of the resonant boost charging process is the timing when the RLC loop current phase is about to zero but not zero, that is, the timing when the voltage of the resonant capacitor C has a peak value. The charge transient information test charts of fig. 1-11 clearly reveal the above generalized resonant boost charging principle.

As shown in fig. 1-11, when the voltage value 364.77V of the resonant capacitor C approaches the peak value in the RLC generalized resonance process, condition 1: when the voltage of the resonant capacitor C is suddenly limited to 364.77V, there is a case 3: the voltage of the resonant capacitor C is higher than the energy storage voltage 362.22V of the energy storage capacitor: 364.77-362.22V (2, 1.29V), which is two rectifier drops in the rectifier, thus case 4: the energy current 8.32A from the power supply is no longer supplied alone to the LC resonant tank (situation 2: 0.921A), but is diverted mainly to the rectifier and the tank capacitor CC (situation 2: charging current 7.4A, 7.4+0.921 ═ 8.321 ═ energy current 8.32 |). This instantaneous power supply current, 8.32A, is equal to the instantaneous (condition 5:) power supply open circuit voltage, 41.15V, obtained after a 26.13V drop in internal resistance R (condition 6:) divided by the current obtained after the internal resistance R of the power supply is 3.141593 ohms: 8.317a for 26.13V/3.141593, and a portion of the energy voltage (41.15-26.13-15.02V) produces a current, i.e., a current flowing through L and into capacitor C, corresponding to a "virtual" power stored in the LC that enhances its broad resonance.

Since the phase difference between the voltage at L and C terminals is 90 degrees from the current phase difference, the resonant boost charging process occurs when the amplitude and phase of the RLC loop current and the energy open-circuit voltage are about to cross zero but are not zero, i.e., when the resonant capacitor voltage has a peak value. This is in contrast to the situation where the charging current occurs at the open circuit voltage of the energy source, the peak value of the energy source current, as in the classical charging shown in figures 1-12.

Figures 1-11 through 1-16 are efficiency comparison simulation circuits for a classic rectified charging band "matched" load and a generalized resonant boosted rectified charging band equivalent matched load, provided that: the peak value of sinusoidal voltage of energy source is 100Vp, the frequency FN is 50Hz, and the internal resistance R is 0.3141593 omega;

the load is classically matched by a classical rectifying charging belt, a load resistor RHJ is 0.3141593 omega, and an energy storage capacitor CC is 1F;

the generalized resonance step-up rectifying charging belt is equivalent to a 'matching' load, a load resistor RHG is 100R 31.41593 omega, an energy storage capacitor CC is 1F, the generalized resonance L is 10mH, C is 1.0132mF, and a resonance frequency FD is 1/[2 pi ] (L C)^0.5]The inductive reactance XL 2 pi FD L3.141593R 10R, i.e. the limiting boost factor G XL/R10. The work obtained by the energy storage capacitor CC and the load RHG is N ═ VCC²RHG, when the output power of the generalized resonance boost rectification energy storage is expected to be about equal to the output power of the classical rectification energy storage and the output voltage is 10 times, the ratio of the load RHG of the generalized resonance boost rectification energy storage to the load RHJ of the classical rectification energy storage is 10²Therefore, RHG 100RHJ 100 × 0.3141593 Ω 31.41593 Ω is taken.

The information of the simulation signal diagram is analyzed in the following way.

The statistics above show that:

compared with the traditional rectifying charging belt matched load, the load voltage is increased by 11 times, the total power consumption of energy output is reduced to 0.728 times, the power obtained by the load is also reduced to 0.8691 times, but the efficiency of the output power is increased to 1.19 times to 0.8691/0.7280.

The conditions of the rapid, efficient and boost charging method are as follows: the energy source generally used for charging energy storage devices (capacitors, rechargeable batteries) is an alternating current power source with low internal impedance, substantially constant voltage and stable frequency, and for example, a mains power source with UI of 220Vrms (310Vp)50Hz for charging energy storage capacitors and rechargeable batteries of electric vehicles is an energy source with low internal resistance and constant voltage. The main problems that the vehicle can drive hundreds of kilometers without charging in a short time exist at present are two:

one is that super-capacitors or storage batteries do not allow rapid and large-current charging to prevent overheating, which can be solved by graphene and other technologies;

the second is that the super capacitor CC cannot be charged at a higher voltage UCC 1000V to 3000V, at a higher speed and with higher efficiency, or cannot be charged at a higher voltage, at a faster speed and with higher efficiency, by using a lower voltage, a shorter time, and a radio magnetic induction power source. Therefore, the wireless charging system becomes a bottleneck for realizing wireless charging (so as to avoid the strong interference of electric sparks of the power supply of the existing contact network) of the electric vehicle which is stopped and even running, and particularly, when the wireless power supply is realized for high-power maglev trains, subways, motor train units and high-speed rails, a track bed wireless power supply device N1 for charging super capacitors of running vehicles is arranged along the way to supply power for a vehicle-mounted power receiver N2 through magnetic induction, as shown in attached figures 1-17. In the figure, a 'track bed wireless power supply N1' is arranged between two steel rails of a track bed, a coil 3 is wound on a middle pole shoe 1 of an E-shaped iron core of the 'track bed wireless power supply N1' and alternating current is supplied by a ground wired circuit, and an alternating magnetic field is generated between the middle pole shoe 1 and two side pole shoes 2 of the 'track bed wireless power supply N1'; a vehicle-mounted current collector N2 is arranged at the bottom of the vehicle in a non-contact and small-gap mode of a track bed wireless power supply N1, a coil 6 is wound on a middle pole shoe 4 of an E-shaped iron core of the vehicle-mounted current collector N2, and an alternating magnetic field generated by inductively coupling the track bed wireless power supply N1 is generated between the middle pole shoe 4 and two side pole shoes 5 of the vehicle-mounted current collector N2; the coil 3 of the "track bed wireless power supply N1" is supplied with an ac power supply from a ground wired circuit, and the coil 6 of the "vehicle-mounted power receiver N2" induces the magnetic field of the "track bed wireless power supply N1" to output an induced potential voltage UI. Fig. 2-1-2-6 are comparison simulation circuits for comparing the effect of RLC generalized resonance wireless charging transformation on a classical wireless charging circuit.

As shown in fig. 2-1, assuming that a certain electric vehicle is powered by a super capacitor having a Vcc of 2000 to 3000V, and a super capacitor CC (CC 1-CC 2) of 1F, when the super capacitor is not powered, the "vehicle-mounted power receiver N2" of the wireless power supply method performs cold charging on the capacitor for 20 seconds, and performs wireless power supply for 2 seconds every 10 seconds after driving. The electrical load is RH (RH 1) (RH 2) 100 ohm. "vehicle-mounted power receiver N2" supplies power source voltage UI 310Vp (220Vrms), FN 50Hz, "vehicle-mounted power receiver N2" coil inductance L (L1-L2) 1mH, coil internal resistance R (RN 1-RN 2) 31.4m Ω, and in order to realize a generalized resonance step-up, i.e., a resonance step-up, a resonance capacitance C (C1-C2) 10mF is added, which is 1/(2 pi) (LC) in accordance with F^0.5) FN at 50Hz, the technical requirement that the resonance frequency F is equal to the energy frequency FN is met. In the drawing, RN1, C1, L1, CC1 and RH1 are parameters of a resonant boost circuit, RN2, C2, L2, CC2 and RH2 are parameters of a classical circuit, input current I1, input power P1, discharge power PH1, resonant boost UC1, charging voltage VCC1 and storage discharge VH1 are measurement parameters of the resonant boost circuit, and input current I2, input power P2, discharge power PH2, resonant boost UC2, charging voltage VCC2 and storage discharge VH2 are measurement parameters of the classical circuit.

Fig. 2-2, fig. 2-3, and fig. 2-4 are simulation test charts.

The statistical comparison of the parameters obtained from the simulation test is as follows:

the simulation data analysis shows that: compared with the conventional charging method, the generalized resonance boosting (resonance boosting) charging method has the advantages of high charging speed, high charging voltage, more energy storage, capability of allowing interruption (charging for 2 seconds every 10 seconds) so as to save the length of a wireless ballast bed power supply N1 for wireless power supply and greatly save construction investment (for example, the length is reduced to about 1/5), guarantee that the load can obtain the required voltage, improve the charging efficiency and the like.

Another example is: the energy source voltage UI obtained by the energy source obtainer powered by the wireless sensor is often a low voltage, as shown in the "classical charging and resonant boost charging circuit diagram" of fig. 2 to 5, the energy source voltage UI is 0.1Vp, and includes an internal resistance R1 ═ 10m Ω and an internal inductance L1 ═ 1 mH. When the energy source voltage UI is directly rectified by the bridge rectifier GR2 in the classical charging manner to charge the energy storage capacitor CC2 at 1F, the on-state voltage of the bridge rectifier needs about 1.2V, so as shown in fig. 2-6, the energy storage capacitor CC2 discharges 100 seconds after 100 seconds of "charging", and since the input voltage of the bridge rectifier is also only UC2 at 0.1Vp, the voltage VCC2 obtained by the energy storage capacitor CC2 is about 0, and the energy storage capacitor CC2 does not obtain the charging power and work. And through the generalized resonance boosting method, the CC1 obtains a final voltage VCC1 of 1.41V, and the stored work reaches 4.31 x 200 of 862mW s.

The reason why the classic charging effect of the above example is 0 is that: the energy source voltage UI cannot provide a voltage UC2 higher than the voltage necessary for the bridge rectifier to conduct using the classical charging method. One of the simplest and most effective ways to solve and improve UC2 is to use the existing conditions of energy (including R1 and L1) and the RLC generalized resonance principle. As shown in the generalized resonance test simulation circuit of fig. 2-5: a resonant capacitor C1 is connected in parallel with the input end of the bridge rectifier, namely the output voltage end of the energy source (comprising R1 and L1), so as to form an R1L1C1 series resonant circuit. The tests of fig. 2-6 show that: when charging for 100 seconds, the voltage UC1 at the input of the bridge rectifier RG1 is 2.99V, which is sufficient to turn RG1 on and charge the storage capacitor CC 1.

The resonant capacitor C1 is designed such that the series resonant frequency FD is equal to the frequency FN of the ac power source voltage. Let the frequency of the energy source FN be 500Hz, FD be 1/((LC)^0.52 pi), calculate C1 ═ 1/(2 pi FD)²L1-101.3211836 uF, approximately C1-100 uF.

The natural law of generalized resonance of R1L1C1 is as follows: energy causing the generalized resonance can be continuously obtained from the nature (such as in the energy source of the circuit) and stored in the device of the L1C1 in the mode of the generalized resonance (i.e. oscillating at the generalized resonance frequency FD), and the terminal voltage of the resonant inductor L1 and the resonant capacitor C1 of the R1L1C1 generalized resonance circuit can be continuously increased until the oscillating current stops increasing when the consumed power on the resistor R1 of the R1L1C1 generalized resonance circuit is equal to the power obtained from the energy source. When the voltage UC1 across the resonant capacitor C1 is greater than the voltage drop across the bridge rectifier plus the storage voltage VCC1 across the storage capacitor CC1, the storage capacitor CC1 is charged. The purpose of obtaining and storing electric energy from micro-voltage energy sources is successfully achieved.

A fast, high-efficiency and boost charging method based on generalized resonance, which is characterized in that in order to further reduce the peak current absorbed by the method to the energy source during charging, reduce the peak current of a rectifier, and increase the output voltage and the energy storage power of energy storage charging, the method comprises the following steps: an RLC series resonance circuit is added at an energy output voltage end, specifically, L is L1, C is C1, and the series resonance frequency FD of the RLC is 1/[2 pi ] (L1C1)^0.5]The frequency FN equal to or close to the energy voltage is not more than 5%, when the voltage is taken from the two ends of the capacitor C1 and supplied to the rectifier, the current-limiting inductor L2 is connected in series to form a generalized resonance current-limiting charging circuit, the magnitude of the current-limiting inductor L2 is 0.1L 1-1.0L 1, and if the input peak current is sought to be reduced, but the output power is allowed to be reduced, the value of L2 is 0.1L 1; in order to reduce the input peak current and increase the output power, L2 is 0.9L 1.

Fig. 3-1 to fig. 3-12 are an analysis circuit diagram and a simulation test diagram for researching the LC generalized resonance current-limiting charging circuit. Simulation analysis of low-voltage and high-voltage energy, a classical charging circuit, a generalized resonance charging circuit and a generalized resonance current-limiting charging circuit is performed.

The simulation data statistics for FIGS. 3-1 through 3-12 are as follows:

the simulation statistics analysis for FIGS. 3-1 through 3-12 were calculated as follows:

	output voltage ratio	Output power ratio	Input current ratio	Ratio of charging current	Energy storage efficiency ratio
						Generalized resonance method is more classical than	2.16	4.55	1.03
Generalized resonance current limiting method is more generalized than generalized resonance method	1.11	1.22	0.93	0.67	1.01

It can be seen that: compared with the generalized resonance method, the generalized resonance current-limiting method has the advantages that the output voltage is increased to 1.11 times, the storage power is increased to 1.22 times, the maximum input current is reduced to 0.93 times, the maximum charging current is reduced to 0.67 times, and the energy storage efficiency is improved to 1.01 times. Good results are obtained.

Fig. 3-13 show an RLC series resonant circuit added between two terminals of the energy output voltage, specifically, L-L1 and C-C1, making the series resonant frequency FD of LC equal to 1/[2 pi ] (L1C1)^0.5]Equal to or close to the energy sourceThe simulation that the frequency FN of the voltage, when the voltage is taken from the two ends of the capacitor C1 and supplied to the rectifier, the current-limiting inductor L2 is connected in series to form a generalized resonant current-limiting charging circuit, and the L2 has the magnitude of 0.1L 1-1.0L 1 proves that:

the simulated statistical data analysis of FIGS. 3-13 through 3-18 was calculated as follows:

it can be seen that:

if the input peak current is sought to be reduced, but the output power is allowed to be reduced, taking L2 as 0.1L 1;

in order to reduce the input peak current and increase the output power, L2 is 0.9L 1.

The rapid, efficient and boost charging method based on the generalized resonance is characterized in that based on the generalized resonance principle, the resonance frequency FD of an RLC series resonance circuit is increased to 1/[2 pi ] (LC) at the energy output voltage end^0.5]When the frequency is equal to the frequency FN of the energy voltage and the voltage is taken from the two ends of the capacitor C to be supplied to the rectifying charging energy storage circuit, the basic design method is as follows:

step 1, calculating a minimum current limiting resistor R1 according to a specified energy maximum circuit limiting current I1, an energy potential UI and a frequency FN:

since the absolute value of the voltage across the resonant capacitor and the resonant inductor is equal but opposite in sign during the resonant boost, so that the resonant capacitor voltage UC1+ the resonant inductor voltage UL1 is 0 and the full input voltage UI, i.e. the source potential UI, is applied to R1, there are:

R1＝UI/I1(1)；

step 2, calculating a loop series resonance capacitor C1 and an inductor L1 according to the energy potential UI, the highest charging limiting voltage UM and the minimum current limiting resistor R1:

since the loop resonant maximum current I1 is UI/R1,

at resonance, capacitance reactance XC of capacitor C1 is 1/(2 pi × FN × C1), and terminal voltage UC1 is I1 × XC I1/(2 pi × FN × C1);

at resonance, the inductance XL of the inductor L1 is 2 pi FN L1, and its terminal voltage UC2 is UM 1 XL I1 pi 2 pi FN L1. Therefore, the method comprises the following steps:

C1＝I1/(2π*FN*UM)(2),

L1＝UM/(I1*2π*FN)(3)。

for example: the maximum energy source circuit limiting current I1 is 100A, the energy source potential UI is 100V, the frequency FN is 50Hz, and the maximum output voltage UM (i.e., the maximum charging limiting voltage) is 1000V, i.e., the amplification gain is 20dB, i.e., 10 times. And obtaining R1, C1 and L1, and performing simulation verification.

According to formula (1): r1 UI/I1, then R1 100V/100A 1 Ω

According to formula (2): c1 ═ I1/(2 pi × FN × UM), then C1 ═ 100/(2 pi × 50 × 1000) ═ 318.3098862uF,

according to formula (3): l1 ═ UM/(I1 ═ 2 pi × FN), then L1 ═ 1000/(100 × 2 pi × 50) ═ 31.83098862 mH.

The generalized resonance boost charging circuit designed according to the calculation result of the formula is shown in the attached figures 3-19. As shown in fig. 3-20, the open circuit voltage of the energy source is 100Vp50Hz, measured: the resonant amplification gain is 20dB, i.e., 10 times, as shown in fig. 3-21; the output UC for a 100V50Hz sinusoidal input, fig. 3-22, is 1000V; figures 3-23 show the charging timing: the energy source voltage UI approaches zero crossing; figures 3-24 show the charging timing: the energy current I1 is close to zero crossing; figures 3-25 show the charging timing: the resistance voltage UR approaches zero crossing; figures 3-26 show the charging opportunities: the capacitor voltage UC is the peak voltage. The test results prove that the design formulas (1) to (3) are correct, and also prove that the actual characteristics of the circuit are combined with the principle of the generalized resonance boosting.

When UC is 902.08V, VCC is 898.99V, UC-VCC is 3.09V, equal to 2 diode drops (2 × VDD is 3.1V), the rectifier is turned on, UR is 13.36V, current 13.16A is generated, and this 13A current that the resonator originally attempted to use for energy storage is transferred to the storage capacitor CC, causing VCC to rise by 0.44V to 899.43V. And UC appears as a clipped waveform.

Considering that the frequency FN of the ac energy voltage may vary in a certain range, for example, the frequency of the voltage output by the energy harvester for capturing environmental vibration energy, wind energy, etc. may vary from FN1 to FN2, and the bandwidth FB of the varying frequency band is FN2-FN 1; to ensureA fast, high-efficiency and boosting charging method based on generalized resonance features that a broadband resonance booster is used to widen the bandwidth ratio of resonance frequency FN to (FN2-FN1)/FN, and a RLC serial resonance circuit is added between two output ends of energy output voltage to make the serial resonance frequency FN of RLC equal to 1/[2 pi ] (LC)^0.5]An L ' C ' series branch is connected in parallel with two ends of the capacitor C, and voltage is taken from two ends of the capacitor C ' of the series branch to be supplied to a rectification charging energy storage circuit, as shown in figure 4-1; the resonance frequency of the L 'C' series branch is designed to be FN ═ 1/[2 π × (L 'C')^0.5]Wherein FN ═ FN2²+FN1²)/2]^0.5，L’＝L*B²，C’＝C/B². Fig. 4-2 is a simulation diagram of the transmission characteristics of a broad-band resonant booster. The broadband resonant booster is formed by an RLC series resonant circuit and an L 'C' series branch.

The specific design method of the broadband resonance booster is as follows:

the design requirements are as follows: the resonance frequency range is FN1 to FN2, the limit boosting gain is G, and the minimum current limiting resistance is R; the method for designing and calculating the parameters L, C, L 'and C' of the broadband resonant booster comprises the following steps:

according to the required resonance frequency range from FN1 to FN2, the center frequency of the broadband resonator is designed as:

FN＝[(FN2²+FN1²)/2]^0.5(4)，

the required bandwidth ratios were:

B＝(FN2-FN1)/FN(5)，

two resonators of FN resonance frequency, LC front and L' C rear, in cascade, wherein

L/L’＝C’/C＝B²(6)，

According to the principle that the inductive reactance of resonance is equal to the capacitive reactance, XL-2 pi FN, L-XC-1/(2 pi FN, C), and the inductive reactance XL and the capacitive reactance XC at resonance are (ultimate boost gain) G times the impedance R, the following are provided: XL ═ 2 pi FN ═ L ═ RG, XC ═ 1/(2 pi FN ═ C) ═ RG, and thus:

L＝RG/(2πFN) (7)，

C＝1/(2πFN*RG) (8)。

design example: the broadband booster is designed with FN2 of 500Hz, FN1 of 400Hz, the minimum value R of the current limiting resistor of 10m omega and the maximum amplification factor G of 100.

And (3) calculating:

according to equation (4), FN ═ FN2²+FN1²)/2]^0.5Then, the resonance center frequency FN is [ (500)²+400²)/2]^0.5＝452.769Hz；

According to the formula (5), if B is (FN2-FN1)/FN, then B is (500-400)/452.77 is 0.22086;

based on R2 pi FN L/G and equation (7), L RG/2 pi FN is 0.01 × 100/(2 pi 452.769) 351.5 Uh;

FN ═ 1/[2 pi × (LC) according to formula (4)^0.5]Then, there are: LC 1/(2 pi FN)²，C＝1/(2πFN)²/L＝351.5uF；

According to equation) 6) L/L '═ C'/C ═ B²Then there is L' ═ L/B²＝7.206mH，C’＝C*B²＝17.15uF。

The generalized resonance broadband booster designed according to the calculated parameters is shown in the attached figure 4-1, and the attached figure 4-2 is a transmission characteristic simulation diagram of the designed circuit. It can be seen that the actual simulation results are very close to the design goal: FN1 (405 Hz), FN2 (505 Hz) deviate from the design values (FN1 (400 Hz), FN2 (500 Hz)) by 5Hz (error about 1%), which is caused by the approximation taken during calculation and the interface capacitance of the bridge rectifier; the deviation of the maximum gain of 40.95dB of the LC level from the level difference of 20log (100) to 40dB corresponding to the design target G of 100 is less than 1 dB.

Fig. 4-3 are "energy frequency conversion simulation circuits" in which the frequency of the energy source is changed from 400Hz to 500Hz once per second, the voltage peak is 1V, and 100-second charging is performed without discharging, and fig. 4-4 are graphs showing the effect of energy frequency conversion charging tests, which show that 17V of energy storage voltage is obtained on an energy storage capacitor with CC being 1F.

Fig. 4-5 to 4-8 are simulation diagrams illustrating that it is necessary to output a voltage across the capacitor C 'of the broadband resonance to the bridge rectifier and not to output a voltage across the capacitor C to the bridge rectifier, because the terminal voltage of the capacitor C' of the broadband resonance booster is a positive value with an amplification factor of more than 18 and a gain of more than 25dB from FN1 to FN2, and a negative value with a gain of less than 0dB and less than 1 at a terminal voltage amplification factor of 450Hz capacitor C. Thus, the tests of FIGS. 4-8 show that the energy frequency is 450Hz, and the voltage amplitude of 1V indicates that charging fails when charging is performed from the C output for 100 seconds without energy storage.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the invention solves the two problems that the environment energy acquisition device cannot collect extremely low voltage and the energy storage device of the electric vehicle has low quick charging efficiency. Realize quick charge, realize with low-voltage alternating current power supply energy storage capacitor, the battery charges that steps up, improve charge efficiency, realize being less than the energy storage capacitor who has stored high-voltage electricity at energy alternating current voltage, the battery continues to charge, the collection of the precious alternating current energy electric energy that energy storage capacitor and battery obtained to the accident has greatly been improved, energy storage capacitor and battery are to the extremely low collection, the storage capacity of alternating current energy electric energy of environment, can solve electric vehicle energy memory's quick high-efficient the collection of the energy acquirer electric energy of charging and passive wireless electric appliance.

Drawings

Figure 1-1 is a circuit diagram of a simulation proof of classical impedance matching theory,

figures 1-2 are graphs of data trends demonstrated by dc simulations of classical impedance matching theory,

figures 1-3 are graphs of local data trends demonstrated by dc simulations of classical impedance matching theory,

figures 1-4 are graphs of data trends demonstrated by ac simulations of classical impedance matching theory,

figures 1-5 are schematic diagrams of a classical ac rectified supply circuit,

figures 1-6 are schematic diagrams of a classic rectified energy storage "load voltage" always lower than the energy "open circuit voltage",

FIGS. 1-7 are schematic diagrams of a simulation circuit illustrating a device of a classical charging method,

figures 1-8 are test plots of a classical charging regime over a 1 second charging period,

FIGS. 1-9 are schematic circuit diagrams illustrating a generalized resonant charging mode device,

figures 1-10 are test plots of the generalized resonant charging regime during a 1 second charging process,

FIGS. 1-11 are generalized resonance boost charging principle charge transient information test charts,

figures 1-12 are test plots of the typical charging current occurring at the peak of the open circuit voltage of the energy source,

figures 1-13 are simulations of a classic rectifying charging band "matched" load,

figures 1-14 are generalized resonant boost rectified charging band equivalent matched load simulation diagrams,

figures 1-15 are graphs of classical rectified charging band "matched" load signals,

figures 1-16 are graphs of generalized resonant boost rectified charging band equivalent matched load signals,

figures 1-17 are schematic diagrams of a wireless powering method,

figure 2-1 is a wireless power supply receiving charging simulation circuit,

figure 2-2 is a test chart of the transfer characteristics of the wireless power supply receiving charging,

fig. 2-3 are discharge test charts of the load RH after charging the wireless power supply receiving charging super capacitor CC for 20 seconds,

fig. 2-4 are test charts of the initial charging 20 seconds after the wireless power receiving charging, discharging the load RH and charging 2 seconds every 10 seconds, fig. 2-5 are circuit diagrams of the wireless power receiving classical charging and resonant boost charging,

figures 2-6 are graphs comparing the effects of a wireless power supply receiving classical charging and resonant boost charging,

figure 3-1 is a circuit simulation diagram of a classical charging method,

FIG. 3-2 is a test chart of the classical charging energy source voltage 1Vp, charging 1s, output voltage 20.33u,

FIGS. 3-3 are graphs of classical charging, energy voltage 1Vp, charging 10s, output voltage 203uV, average power 1.98uW, output power 0.206uW, efficiency 0.1042,

FIGS. 3-4 are graphs of classical charge, energy voltage 100Vp, charge 10s, output voltage 79.15V, average power 34.79W, output power 31.32W, efficiency 0.9002,

figures 3-5 are circuit simulations of the generalized resonant charging method,

FIGS. 3-6 are graphs showing the generalized resonance charging, energy voltage 1Vp, charging 1s, output voltage 165mV,

FIGS. 3-7 are the test charts of generalized resonance charging, energy voltage 1Vp, charging 10s, output voltage 1.62V, average power 41.74mW, output power 13.12mW, efficiency 0.3146,

FIGS. 3-8 are graphs of generalized resonance charging, energy voltage 100Vp, charging 10s, output voltage 171V, average power 158.19W, output power 146.24W, efficiency 0.9245,

figures 3-9 are circuit simulation diagrams of the generalized resonant current-limiting charging method,

FIGS. 3-10 are test charts of the generalized resonant current-limiting charging, energy voltage 1Vp, charging 1s, output voltage 183mV,

FIGS. 3-11 are graphs of generalized resonant current-limiting charging, energy voltage 1Vp, charging for 10s, output voltage 1.77V, average power 46.34mW, output power 15.71mW, efficiency 0.3390,

FIGS. 3-12 are graphs of generalized resonant current-limited charging, energy voltage 100Vp, charging 10s, output voltage 190V, average power 193.68W, output power 181.1W, efficiency 0.9350,

figures 3-13 show the effect of L2 being 0,

figures 3-14 show the effect of L2-0.1L 1,

figures 3-15 are graphs of the effect of L2-0.9L 1,

figures 3-16 are graphs of the effect of L2-1.0L 1,

figures 3-17 are graphs of the effect of L2-1.1L 1,

figures 3-18 are graphs of the effect of L2-1.2L 1,

figures 3-19 are generalized resonant boost charging circuits,

figures 3-20 are graphs of open circuit voltage settings for an energy source,

FIGS. 3-21 show the actual measurements: the resonant amplification gain is 20dB, i.e. 10 times the test pattern,

figures 3-22 are test plots of the output UC-1000V for a 100V50Hz sinusoidal input UI,

fig. 3-23 show charging opportunities: the energy source voltage UI approaches the zero crossing test pattern.

Fig. 3-24 show charging opportunities: the energy current I1 is a test plot of near zero crossing,

fig. 3-25 show charging opportunities: the resistance voltage UR approaches the test pattern of zero crossing,

fig. 3-26 show charging opportunities: the capacitor voltage UC is a test chart of the peak voltage,

figures 3-27 are generalized resonant boost charging simulation diagrams using a storage capacitor CC of 10mF,

FIGS. 3-28 are graphs of the energy storage boost up to 50%, 70%, taking 1.43, 2.54 seconds,

figures 3-29 are analytical test charts of the charging process of resonant boosting,

fig. 3-30 are graphs of voltage clipping tests of the resonant capacitor at resonant boost,

figure 4-1 is a generalized resonant broadband booster circuit diagram,

figure 4-2 is a simulation of the transfer characteristic of a broad resonance broadband booster,

figure 4-3 is an energy frequency conversion generalized resonance boosting simulation circuit,

figures 4-4 are graphs of the effect of the energy variable frequency charging test,

FIGS. 4-5 are graphs of measurements of the charging voltage of 12V from the C' output charging at 500Hz1V for 100 seconds,

figures 4-6 are test plots of energy source 500Hz1V charged from C output for 100 seconds to 1231V,

figures 4-7 are test plots of energy source 450Hz1V charged from a C' output for 100 seconds to 17V,

figures 4-8 are test plots of energy source 450Hz1V charged from C output for 100 seconds without stored energy,

FIG. 5-1 is a circuit diagram of a DC power supply classical charging circuit for checking the correctness of a simulation test circuit,

figure 5-2 is a test chart of 1.1865V energy induced voltage with bridge rectifier to power 1V load R2,

fig. 5-3 is a circuit diagram of a test in which an LC series resonant circuit is added between two terminals of the energy output voltage, and a voltage is taken across capacitor C3 to supply the rectified charging tank circuit but no tank capacitor,

figures 5-4 are test plots of R2 ═ 1k load supply with no storage capacitor to obtain 0.995V demonstrating that the LC resonant circuit does not affect dc transfer performance,

fig. 5-5 is a simulation test circuit when the storage capacitor CC-C2-10 mF is added after rectification on the basis of fig. 5-3,

fig. 5-6 are graphs showing the effect of the energy storage instantaneous voltage 1.51V higher than the energy source induced voltage 1.19V when the induced voltage of the energy source is the suddenly applied direct current voltage UI is 1.19V,

figures 5-7 are circuit diagrams of a classical charging circuit powered by an alternating current energy source for checking the correctness of a simulation test circuit,

figures 5-8 are test plots of an energy source induced ac voltage of 1Vp with a bridge rectifier supplying a load of 1k when R2 is energized to a voltage of 0.812Vp and a cumulative work of 6.6mW at 10s,

figures 5-9 are test circuit diagrams of the case where an LC series resonant circuit is added between the two terminals of the energy output voltage, and an ac voltage is taken across capacitor C3 to supply the rectified charging tank circuit but no tank capacitor,

figures 5-10 are test charts of cumulative work 3.98Wp for a voltage of 19.94Vp and 10s obtained with a 1k load at R2 without storage capacitor,

figures 5-11 are simulated test circuit diagrams for the case where the storage capacitor CC C2 mF is added after rectification on the basis of figures 5-9,

fig. 5 to 12 are test charts of 10s cumulative work 6.6mWp when the induced voltage of the energy source is 1Vp, the storage output dc voltage rises to 10V at 10s and the cumulative work reaches 1W, compared with the 10s cumulative work without the resonant capacitor and the storage capacitor,

fig. 6-1 is a simulation diagram of a test of charging a super capacitor C2-1F with a dc voltage of 300V as an energy source potential directly through a bridge rectifier,

FIG. 6-2 shows a test chart of charging time 20s, final voltage 299V, equivalent energy storage 355W, efficiency 0.742,

fig. 6-3 is a simulation diagram of a test of charging a super capacitor C2-1F with an energy source potential of 300V50Hz ac voltage directly through a bridge rectifier,

FIGS. 6-4 are graphs of the charge for 20s, the final voltage for 298V, the equivalent energy storage for 1.18kW, and the efficiency for 0.742,

fig. 6-5 are simulation diagrams of tests of charging a super capacitor C2 at 1F by using an energy source potential of 300V50Hz ac voltage, passing through LC generalized resonance and a bridge rectifier,

FIGS. 6-6 are graphs of 20s charging, 993V final voltage, 324kW equivalent energy storage, 0.945 efficiency,

figure 7-1 shows a 300V battery charging simulation circuit with 300Vp50Hz ac in a classical manner,

FIG. 7-2 is a test chart of 20s charging, 300V final voltage, 0W equivalent energy storage,

figure 7-3 shows a 300V battery charging simulation circuit after the 300Vp50Hz ac power passes through LC generalized resonance,

7-4 are the charging 20s, the final voltage 300V, the equivalent energy storage 151 kW's test chart.

Detailed Description

The present invention will be further described with reference to the following examples.

Embodiment 1, the wind energy generator realizes quick, high-efficiency and boosting charging on the super capacitor and the load in a generalized resonance manner

Fig. 5-1 to 5-12 are examples of "realizing fast, efficient, boosting charging by a wind energy generator in a broad sense resonance for a super capacitor and a load" for illustrating the present invention.

To verify the correctness of the proposed simulation study circuit, fig. 5-1 is provided as a classical charging circuit of direct current energy to check the correctness of the simulation test circuit. The accompanying fig. 5-2 show: the energy induction voltage of 1.1865V is supplied to a load of 1k (R2) through bridge rectification to obtain a voltage of 1V, and the loss voltage of 0.1865V is caused by the voltage drop of the bridge rectifier.

Fig. 5-3 is a circuit diagram showing a test in which an LC series resonant circuit is added between two terminals of the energy output voltage, the coil inductance L is 10mH, the resonant capacitor C3 is 10uF, and a voltage is taken from both ends of the resonant capacitor C3 to supply the rectified charging tank circuit but no tank capacitor, and the test results of fig. 5-4 show that: when the energy voltage is induced voltage 1V and no energy storage capacitor, power is supplied to a load with the voltage of R2 being 1k to obtain 0.995V, and the LC resonance circuit is proved not to influence the direct current transmission performance.

Fig. 5-5 is a simulation test circuit when the storage capacitor CC-C2-10 mF is added after rectification based on fig. 5-3; the test results of figures 5-6 show that: when the induced voltage of the energy source is the suddenly applied dc voltage UI of 1.19V, the instantaneous value of the energy storage output voltage is 1.51V, and the effect that the energy storage voltage 1.51V is higher than the energy source voltage 1.19V appears.

Figures 5-7 are arranged as follows: and the alternating current energy classical charging circuit checks the correctness of the simulation test circuit. Figures 5-8 show: the energy source induction voltage of 1Vp is rectified by a bridge to supply power to a load of 1k when R2 is equal to 0.812Vp voltage, the accumulated work at 10s is 6.6mW, and the loss of 0.188V voltage is caused by the voltage drop of the bridge rectifier.

Fig. 5-9 are circuit diagrams illustrating a test in which an LC series resonant circuit is added between two terminals of the energy output voltage, the coil inductance L is 10mH, the resonant capacitor C3 is 10uF, and a voltage is taken from two terminals of the resonant capacitor C3 to supply the rectified charging tank circuit but no tank capacitor, the test results of fig. 5-10 show that: when the energy induction voltage is 1Vp and the voltage obtained by the load with the R2 being 1k is close to 20Vp when the energy induction voltage is no energy storage capacitor, and the accumulated work reaches 3.98Wp when the energy induction voltage is 10s, the LC resonance circuit can lift the alternating current voltage supplied to the load.

Fig. 5-11 are simulation test circuits for the case where the storage capacitor CC C2 mF is added after rectification on the basis of fig. 5-9; the test results of figures 5-12 show that: when the induced voltage of the energy source is an alternating voltage UI with the same frequency as the LC resonant frequency, 1Vp, the storage output dc voltage rises to 10V at 10s, and the cumulative power reaches 1W, which is at least 150 times higher than the 10s cumulative power of 6.6mWp without the resonant capacitor and the storage capacitor.

Embodiment 2, the power frequency energy source is used to realize the fast, high-efficiency and boosting charging of the super capacitor by the generalized resonance

In the following, the effect of the present invention is demonstrated by taking the example of using an energy source with a power frequency of 50Hz to realize rapid, efficient and boost charging of a super capacitor by generalized resonance.

Fig. 6-1 is a simulation diagram of a test in which a super capacitor C2 is charged at 1F by a direct-current voltage with an energy potential of 300V directly passing through a bridge rectifier. Fig. 6-2 is a test chart of the equivalent energy storage 355W with the final voltage of the energy storage capacitor being 299V and the efficiency of the energy source outputting the equivalent energy being 0.742 after charging for 20 s.

Fig. 6-3 is a simulation diagram of a test in which a super capacitor C2 is charged at 1F directly through a bridge rectifier with an energy source potential of 300Vp at 50Hz ac voltage. Fig. 6-4 are graphs showing the equivalent energy storage capacity of 1.18W (1.18/20/(20/3600) ═ 10.62kW/h) at a final voltage of 298V after 20s of charging, relative to the energy output efficiency of 0.742.

Fig. 6-5 are simulation diagrams of a test in which a super capacitor C2 is charged at 1F by an LC broad resonance and then by a bridge rectifier using a 50Hz ac voltage with an energy potential of 300 Vp. Fig. 6-6 are graphs showing the equivalent energy storage capacity 324kW (the conversion 342/20/(20/3600) ═ 3078kW/h) at a final voltage of 993V after 20s of charging, relative to the efficiency of 0.742 at which the energy is equivalent.

The effect of comparing the LC resonance with the classical method directly is as follows:

charging energy storage method	20s charging final voltage	20s equivalent energy storage	Efficiency of energy storage
				Classical energy storage	298V	1.18kW	74.2％
Energy storage by LC generalized resonance	993V	324kW	94.5％
				Comparison of the effects of the invention	3.44 times of	245 times of	1.274 times of

Example 3 fast, efficient, boost charging with power supply to battery in generalized resonance

The effect of the invention is demonstrated by taking the example of using an energy source with the power frequency of 50Hz to realize rapid, high-efficiency and boosting charging on a storage battery by generalized resonance.

FIG. 7-1 is a simulation diagram of a test in which a charged battery E having a voltage of 300V is charged with an AC voltage of 50Hz having an energy potential of 300Vp directly through a bridge rectifier. Fig. 7-2 is a test chart of the equivalent stored energy of 0W, wherein the final voltage of the charged battery is still 300V after charging for 20s, and the charging current in the whole process is 0. An energy potential that indicates a peak energy voltage of 300V does not charge the battery that already has a voltage of 300V to replenish the stored energy.

Fig. 7-3 is a simulation diagram of a test in which a super capacitor C2 is charged at 1F by an LC broad resonance and then by a bridge rectifier using a 50Hz ac voltage with an energy potential of 300 Vp. Fig. 7-4 are graphs showing the results of the equivalent energy output efficiency of 0.936 for the equivalent energy stored in 151kW (151/20/(20/3600) ═ 1359kW/h) after 20s of charging, although the final voltage of the energy storage capacitor is still 300V. Energy potentials that indicate an energy peak voltage of 300V or less also charge batteries that already have 300V to replenish stored energy.

Claims

1. A fast, high-efficient, boost charging method based on generalized resonance, in order to realize when the voltage UI of the alternating current energy is lower than the voltage UCC of the energy storage capacitor CC expected by the rectifying charging energy storage circuit, or when the voltage UI of the energy is lower than the voltage UE of the energy storage battery E of the rectifying charging energy storage circuit, still can use the voltage UI of the energy to continue charging the energy storage capacitor CC or the energy storage battery E, characterized by that: an RLC series resonance circuit is added at an energy output voltage end to implement RLC generalized resonance boosting, and the series resonance frequency FD of LC is 1/[2 pi ] (LC)^0.5]Equal to or close to the frequency FN of the voltage of the alternating energy source, with a deviation not greater than 5%, and taking the voltage from the two ends of the resonant capacitor C to supply the rectified charged tank circuit, wherein the resistance R of the RLC series resonant circuit mainly comprises the internal resistance RN of the energy source and the added resistance RW, R-RN + RW, namely: when the series resistor R is needed and the energy source already contains the internal resistor RN, the series resistor RW (R-RN) is added externally; the inductance L of the RLC series resonant circuit mainly comprises the internal inductance LN of the energy source and the added inductance LW, L ═ LN + LW, i.e.: when the series inductance L is needed and the energy source already contains the internal inductance LN, the series inductance LW is added outside;

when the boosting charging method is used for realizing wireless power supply for high-power maglev trains, subways, motor train units and high-speed rails, a track bed wireless power supply device for charging super capacitors of advancing vehicles is arranged along the way to supply power to a vehicle-mounted current collector through magnetic induction; a 'track bed wireless power supply device' is arranged between two steel rails of a track bed, a coil is wound on a middle pole shoe of an E-shaped iron core of the 'track bed wireless power supply device', a ground wired circuit supplies alternating current, and an alternating magnetic field is generated between the middle pole shoe and the pole shoes on the two sides; a vehicle-mounted current collector is arranged at the bottom of the vehicle in a non-contact and small-gap mode and aligned with a track bed wireless power supply device, a coil is wound on a middle pole shoe of an E-shaped iron core of the vehicle-mounted current collector, and an alternating magnetic field generated by inductively coupling the track bed wireless power supply device is generated between the middle pole shoe and two side pole shoes of the vehicle-mounted current collector; the coil of the 'track bed wireless power supply device' is supplied with an alternating current power supply by a ground wired circuit, and the coil of the 'vehicle-mounted power receiver' induces the magnetic field of the 'track bed wireless power supply device' to output induced potential voltage.

2. The method of claim 1, wherein the method comprises: in the RLC generalized resonance boosting process, when the voltage of the resonance capacitor C is close to the peak value, the close means that the deviation is not more than 5%, and the voltage is higher than the energy storage voltage of the energy storage capacitor CC and the rectifier voltage drop of the rectification charging energy storage circuit, the current from the alternating current energy source is not independently supplied to the LC resonance energy storage, but mainly turns to the rectifier for rectification to further charge the energy storage capacitor CC, and the instantaneous alternating current energy current is equal to the voltage drop of the instantaneous energy open circuit voltage on the internal resistance R divided by the energy internal resistance R; the "virtual" power of a portion of the energy current, which is still flowing through L, flowing into capacitor C, is stored in the LC and enhances its generalized resonance.

3. The method of claim 1 for fast, high efficiency, boost charging based on generalized resonance, in order to further reduce the peak current absorbed by the method during charging to the energy source, reduce the peak current of the rectifier of the rectified charging energy storage circuit, boost the energy storage charging output voltage and the energy storage power, characterized in that: an RLC series resonance circuit is added at an energy output voltage end, specifically, L is L1, C is C1, and the series resonance frequency FD of the RLC is 1/[2 pi ] (L1C1)^0.5]Equal or close to the frequency FN of the energy source voltage, with a deviation not greater than 5%; when voltage is taken from two ends of a capacitor C1 and supplied to a rectifier, a current-limiting inductor L2 is connected in series to form a generalized resonance current-limiting charging circuit, the magnitude of the current-limiting inductor L2 is 0.1L 1-1.0L 1, and if the input peak current is sought to be reduced, but the output power is allowed to be reduced, the L2 is 0.1L 1; if the input peak current is reduced and the output power is improved, L2 is 0.9L 1;

a current limiting inductor L2 is connected in series with the rectifier, with the input of the current limiting inductor L2 connected directly to the output of the inductor L1 and the output of the current limiting inductor L2 connected directly to the input of the rectifier.

4. The method according to claim 3, wherein the RLC series resonant circuit has a resonant frequency FD ═ 1/[2 π × (LC) at the output voltage of the energy source based on the principle of generalized resonance^0.5]When the frequency is equal to the frequency FN of the energy voltage and the voltage is taken from the two ends of the capacitor C and supplied to the rectifying charging energy storage circuit, the specific design method is as follows:

R1＝UI/I1(1)；

since the loop resonant maximum current I1 is UI/R1,

when the inductance XL of the inductance L1 is 2 pi FN L1 at resonance, the terminal voltage UC2 is UM 1 pi XL I1 pi 2 pi FN L1, so that:

C1＝I1/(2π*FN*UM) (2),

L1＝UM/(I1*2π*FN) (3)。

5. the method of claim 1, wherein when the frequency FN of the ac power source voltage is changed from FN1 to FN2, the bandwidth of the changed frequency band is FB-FN 2-FN 1; in order to ensure that the generalized resonance boosting charging can still be realized under the condition of alternating current energy frequency change, a broadband resonance booster is provided, the bandwidth ratio of the resonance frequency FN is widened to B ═ FN2-FN1)/FN, and RLC is added between two output ends of the energy output voltage in series connectionA resonance circuit for making the series resonance frequency FN of RLC equal to 1/[2 π (LC)^0.5]An L ' C ' series branch is connected in parallel with two ends of the capacitor C, and voltage is taken from two ends of the capacitor C ' of the series branch to be supplied to a rectifying charging energy storage circuit; the resonance frequency of the L 'C' series branch is designed to be FN ═ 1/[2 π × (L 'C')^0.5]Wherein FN ═ FN2²+FN1²)/2]^0.5，L’＝L*B²，C’＝C/B²(ii) a The broadband resonant booster is formed by an RLC series resonant circuit and an L 'C' series branch.

6. The generalized resonance-based fast, efficient, boost charging method according to claim 5, characterized in that the specific design method of the broadband resonant booster is:

the resonance frequency range is FN1 to FN2, the limit boosting gain is G, and the minimum current limiting resistance is R; the method for designing and calculating the parameters L, C, L 'and C' of the broadband resonant booster comprises the following steps:

FN＝[(FN2²+FN1²)/2]^0.5(4)，

the required bandwidth ratios were:

B＝(FN2-FN1)/FN (5)，

L/L’＝C’/C＝B²(6)，

According to the principle that inductance of resonance is equal to capacitance reactance, XL is 2 pi FN L XC is 1/(2 pi FN C), and the inductance XL and the capacitance reactance XC at resonance have the limit of boosting gain G times the impedance R, then: XL ═ 2 pi FN ═ L ═ RG, XC ═ 1/(2 pi FN ═ C) ═ RG, and thus:

L＝RG/(2πFN) (7)，

C＝1/(2πFN*RG) (8)。