CN112583097A - Wireless charging pile combined with new energy power generation system - Google Patents

Wireless charging pile combined with new energy power generation system Download PDF

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Publication number
CN112583097A
CN112583097A CN202011339458.1A CN202011339458A CN112583097A CN 112583097 A CN112583097 A CN 112583097A CN 202011339458 A CN202011339458 A CN 202011339458A CN 112583097 A CN112583097 A CN 112583097A
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CN
China
Prior art keywords
diode
power generation
mos transistor
wireless charging
charging pile
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Pending
Application number
CN202011339458.1A
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Chinese (zh)
Inventor
张伟峰
张家浩
李梁
孙微庭
吴梦遥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Application filed by Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority to CN202011339458.1A priority Critical patent/CN112583097A/en
Publication of CN112583097A publication Critical patent/CN112583097A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/51—Photovoltaic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/52—Wind-driven generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/55—Capacitors
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/40—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

The invention provides a wireless charging pile combined with a new energy power generation system, which comprises a power supply system, an energy storage module, an intelligent distributor and a wireless transmitting end, wherein the energy storage module is used for storing energy; the power supply system comprises a photovoltaic power generation array and a wind power generation array, and the photovoltaic power generation array and the wind power generation array are respectively connected with the energy storage module through a direct current junction station; the input end of the intelligent distributor is connected with the energy storage module and the power grid system respectively, and the output end of the intelligent distributor is connected with the wireless transmitting end. Through setting up wind power generation array and photovoltaic power generation array, utilize wind energy and solar energy saving, adopt the mode of going into the net, make to fill electric pile and can switch to the stable output of electric wire netting system in order to guarantee the electric energy according to the demand of charging, fill electric pile when the demand of charging is not high and adopt energy storage module power supply, avoid filling a large amount of electric piles and insert the electric wire netting when make full use of natural resources.

Description

Wireless charging pile combined with new energy power generation system
Technical Field
The invention belongs to the field of electric automobile charging, and particularly relates to a wireless charging pile combined with a new energy power generation system.
Background
With the proposal of new capital construction of the country and the continuous popularization of new energy automobiles, the requirement of a new infrastructure of a charging pile is increased. Traditional wired charging pile charging contact exposes outside, has the potential safety hazard, probably receives external influence moreover, reduces life, and has the problem of accomodating of charging wire, therefore wireless charging pile's application is more extensive.
However, the traditional wireless charging pile directly and massively accesses the power grid and may generate harmonic waves, the load of the load in a peak period is increased, huge impact is caused to the power grid, the charging voltage may be reduced, and the charging efficiency of the electric automobile is further influenced.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention provides a wireless charging pile combined with a new energy power generation system, which comprises a power supply system, an energy storage module, an intelligent distributor and a wireless transmitting end, wherein the wireless charging pile comprises a charging unit, a charging unit and a wireless transmitting end;
the power supply system comprises a photovoltaic power generation array and a wind power generation array, wherein the photovoltaic power generation array and the wind power generation array are respectively connected with an energy storage module through a direct current junction station;
the input end of the intelligent distributor is connected with the energy storage module and the power grid system respectively, and the output end of the intelligent distributor is connected with the wireless transmitting end.
Optionally, the intelligent power distributor is configured to determine whether to switch a power supply source of the wireless charging pile to the power grid system according to the electric energy stored in the energy storage module.
Optionally, a rectifier is connected between the wind power generation array and the direct current junction station.
Optionally, the wireless transmitting end includes a main control module, a power frequency rectifier, a high frequency inverter, a compensation module, and a transmitting coil;
the main control module is respectively connected with the power frequency rectifier and the high-frequency inverter.
Specifically, the compensation module and the transmitting end circuit are connected in series to form a resonant circuit.
Specifically, the circuit of the wireless transmitting terminal comprises a diode D1, a diode D2, a diode D3, a diode D4, a MOS transistor Q1, a MOS transistor Q2, a MOS transistor Q3, a MOS transistor Q4, a compensation capacitor and a transmitting coil;
the power frequency rectifier is composed of a diode D1, a diode D2, a diode D3 and a diode D4, and the high-frequency inverter is composed of a MOS tube Q1, a MOS tube Q2, a MOS tube Q3 and a MOS tube Q4.
Optionally, the diode D1 is connected in series with the diode D3, the diode D2 is connected in series with the diode D4, the anode of the diode D1 is connected to the anode of the diode D2, and the cathode of the diode D3 is connected to the cathode of the diode D4;
a first end of the intelligent power distributor is connected with the negative pole of the diode D1, and a second end of the intelligent power distributor is connected with the positive pole of the diode D4;
the source electrode of the MOS transistor Q1 is connected with the drain electrode of the MOS transistor Q3, the source electrode of the MOS transistor Q2 is connected with the drain electrode of the MOS transistor Q4, and the first end of the compensation capacitor is connected between the MOS transistor Q2 and the MOS transistor Q4;
the anode of the diode D2 is connected to the drain of the MOS transistor Q1, and the cathode of the diode D4 is connected to the source of the MOS transistor Q3.
Optionally, the compensation capacitor is connected in series with the transmitting coil to form a resonant circuit, and a second end of the compensation capacitor is connected between the MOS transistor Q1 and the MOS transistor Q3 through the transmitting coil.
Optionally, the transmitting coil is a planar square coil with a side length equal to 700 mm.
Optionally, a high-permeability nanocrystal is laid below the transmitting coil.
Optionally, the energy storage module is a super capacitor.
The technical scheme provided by the invention has the beneficial effects that:
through setting up wind power generation array and photovoltaic power generation array, utilize wind energy and solar energy saving, adopt the mode of going into the net, make to fill electric pile and can switch to the stable output of electric wire netting system in order to guarantee the electric energy according to the demand of charging, fill electric pile when the demand of charging is not high and adopt energy storage module power supply, avoid filling a large amount of electric piles and insert the electric wire netting when make full use of natural resources.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wireless charging pile incorporating a new energy power generation system according to the present invention.
Detailed Description
To make the structure and advantages of the present invention clearer, the structure of the present invention will be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1, the invention provides a wireless charging pile combined with a new energy power generation system, which comprises a power supply system, an energy storage module, an intelligent distributor and a wireless transmitting terminal;
the power supply system comprises a photovoltaic power generation array and a wind power generation array, and the photovoltaic power generation array and the wind power generation array are respectively connected with the energy storage module through the direct current junction station.
The input end of the intelligent distributor is connected with the energy storage module and the power grid system respectively, and the output end of the intelligent distributor is connected with the wireless transmitting end.
The wireless transmitting terminal comprises a main control module, a power frequency rectifier, a high-frequency inverter, a compensation module and a transmitting coil, wherein the power frequency rectifier, the high-frequency inverter, the compensation module and the transmitting coil are sequentially connected, and the main control module is respectively connected with the power frequency rectifier and the high-frequency inverter. In the present embodiment, the high-frequency inverter is a high-frequency inverter with phase shift control.
Under the new energy power supply mode, the photovoltaic power generation array can provide direct current electric energy, and the direct current electric energy is stored in the energy storage module through the direct current junction station. When the charging pile works, the energy storage module performs discharging work, electric energy of the energy storage module is rectified by the power frequency rectifier through the intelligent distributor, high-frequency alternating current is output through the high-frequency inverter to meet the wireless electric energy transmission requirement, and the power frequency rectifier and the high-frequency inverter are controlled to work through the main control module respectively.
The process of supplying power by using the new energy of the wind power generation array is similar to that of the photovoltaic power generation array, and the process is not repeated in the same way.
In this embodiment, the intelligent power distributor is configured to determine whether to switch a power supply source of the wireless charging pile to a power grid system according to the electric energy stored in the energy storage module. When the electric energy stored in the energy storage module cannot meet the current charging demand, the intelligent distributor can automatically identify the shortage of the electric energy, and the electric energy of the power grid system is used for supplying power to the wireless charging system to supplement the shortage. When the power grid system supplies power, the power frequency alternating current is rectified and inverted to meet the requirements of the wireless charging system on the voltage, frequency and other electrical parameters. The regulation mode also uses the main control module to control the electrical parameters.
In the wireless transmitting terminal, alternating current output by the high-frequency inverter is sent to the transmitting coil after passing through the compensation module, and the charging function of the charging pile is realized through the transmitting terminal circuit.
The circuit of the wireless transmitting terminal comprises a diode D1, a diode D2, a diode D3, a diode D4, a MOS tube Q1, a MOS tube Q2, a MOS tube Q3, a MOS tube Q4, a compensation capacitor and a transmitting coil. A rectifier bridge composed of a diode D1, a diode D2, a diode D3 and a diode D4 is used as a power frequency rectifier, and a full bridge inverter bridge composed of a MOS transistor Q1, a MOS transistor Q2, a MOS transistor Q3 and a MOS transistor Q4 is used as a high frequency inverter.
The diode D1 is connected in series with the diode D3, the diode D2 is connected in series with the diode D4, the anode of the diode D1 is connected with the anode of the diode D2, and the cathode of the diode D3 is connected with the cathode of the diode D4;
a first end of the intelligent power distributor is connected with the negative pole of the diode D1, and a second end of the intelligent power distributor is connected with the positive pole of the diode D4;
the source electrode of the MOS transistor Q1 is connected with the drain electrode of the MOS transistor Q3, the source electrode of the MOS transistor Q2 is connected with the drain electrode of the MOS transistor Q4, and the first end of the compensation capacitor is connected between the MOS transistor Q2 and the MOS transistor Q4;
the anode of the diode D2 is connected to the drain of the MOS transistor Q1, and the cathode of the diode D4 is connected to the source of the MOS transistor Q3.
The compensation capacitor and the transmitting coil are connected in series to form a resonant circuit, and the second end of the compensation capacitor is connected between the MOS transistor Q1 and the MOS transistor Q3 through the transmitting coil.
In this embodiment, the transmitting coil is a planar square coil with the side length equal to 700mm, and the high-permeability nanocrystalline is laid below the transmitting coil, so that the charging efficiency is improved by improving the permeability.
In this embodiment, the energy storage module is a super capacitor, and the super capacitor is an electrochemical device capable of rapidly storing and supplying high-power electric power and a large number of cycles without performance degradation, so that the energy storage efficiency is improved, and the service life of the charging pile is prolonged.
The sequence numbers in the above embodiments are merely for description, and do not represent the sequence of the assembly or the use of the components.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A wireless charging pile combined with a new energy power generation system is characterized by comprising a power supply system, an energy storage module, an intelligent distributor and a wireless transmitting end;
the power supply system comprises a photovoltaic power generation array and a wind power generation array, wherein the photovoltaic power generation array and the wind power generation array are respectively connected with an energy storage module through a direct current junction station;
the input end of the intelligent distributor is connected with the energy storage module and the power grid system respectively, and the output end of the intelligent distributor is connected with the wireless transmitting end.
2. The wireless charging pile combined with a new energy power generation system according to claim 1, wherein the intelligent power distributor is configured to determine whether to switch the power supply source of the wireless charging pile to the power grid system according to the electric energy stored in the energy storage module.
3. The wireless charging pile combined with the new energy power generation system according to claim 1, wherein a rectifier is connected between the wind power generation array and the direct current junction station.
4. The wireless charging pile combined with the new energy power generation system according to claim 1, wherein the wireless transmitting end comprises a main control module, a power frequency rectifier, a high-frequency inverter, a compensation module and a transmitting coil;
the main control module is respectively connected with the power frequency rectifier and the high-frequency inverter.
5. The wireless charging pile combined with the new energy power generation system according to claim 4, wherein the circuit of the wireless transmitting terminal comprises a diode D1, a diode D2, a diode D3, a diode D4, a MOS transistor Q1, a MOS transistor Q2, a MOS transistor Q3, a MOS transistor Q4, a compensation capacitor and a transmitting coil;
the power frequency rectifier is composed of a diode D1, a diode D2, a diode D3 and a diode D4, and the high-frequency inverter is composed of a MOS tube Q1, a MOS tube Q2, a MOS tube Q3 and a MOS tube Q4.
6. The wireless charging post combined with a new energy power generation system according to claim 5, wherein the diode D1 is connected in series with the diode D3, the diode D2 is connected in series with the diode D4, the anode of the diode D1 is connected with the anode of the diode D2, and the cathode of the diode D3 is connected with the cathode of the diode D4;
a first end of the intelligent power distributor is connected with the negative pole of the diode D1, and a second end of the intelligent power distributor is connected with the positive pole of the diode D4;
the source electrode of the MOS transistor Q1 is connected with the drain electrode of the MOS transistor Q3, the source electrode of the MOS transistor Q2 is connected with the drain electrode of the MOS transistor Q4, and the first end of the compensation capacitor is connected between the MOS transistor Q2 and the MOS transistor Q4;
the anode of the diode D2 is connected to the drain of the MOS transistor Q1, and the cathode of the diode D4 is connected to the source of the MOS transistor Q3.
7. The charging post combined with a new energy power generation system as claimed in claim 5, wherein the compensation capacitor is connected in series with the transmitting coil to form a resonant circuit, and a second end of the compensation capacitor is connected between the MOS transistor Q1 and the MOS transistor Q3 through the transmitting coil.
8. The wireless charging pile combined with the new energy power generation system according to claim 4, wherein the transmitting coil is a planar square coil with a side length equal to 700 mm.
9. The wireless charging pile combined with the new energy power generation system according to claim 4, wherein a high-permeability nanocrystal is laid below the transmitting coil.
10. The wireless charging pile combined with the new energy power generation system according to claim 1, wherein the energy storage module is a super capacitor.
CN202011339458.1A 2020-11-25 2020-11-25 Wireless charging pile combined with new energy power generation system Pending CN112583097A (en)

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