CN109969011A - A kind of flexible multimode regulating switch regulating system for charging vehicle power distribution network - Google Patents

A kind of flexible multimode regulating switch regulating system for charging vehicle power distribution network Download PDF

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Publication number
CN109969011A
CN109969011A CN201910298133.4A CN201910298133A CN109969011A CN 109969011 A CN109969011 A CN 109969011A CN 201910298133 A CN201910298133 A CN 201910298133A CN 109969011 A CN109969011 A CN 109969011A
Authority
CN
China
Prior art keywords
charging
distribution network
charging vehicle
power distribution
ferry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910298133.4A
Other languages
Chinese (zh)
Inventor
赵国伟
杨保东
王�忠
常波
张政
李承�
陈建丰
刘慧超
张娟
李春霞
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.)
Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Original Assignee
Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd filed Critical Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Priority to CN201910298133.4A priority Critical patent/CN109969011A/en
Publication of CN109969011A publication Critical patent/CN109969011A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00Vehicles adapted to transport, to carry or to comprise special loads or objects
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/30Circuit arrangements or systems for wireless supply or distribution of electric power using light, e.g. lasers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention provides a kind of flexible multimode regulating switch regulating systems for charging vehicle power distribution network, including emanant power distribution network, TVR (2), it charges transmitting terminal (3), it charges receiving end (4) and ferries charging vehicle (5), it is characterized in that, the TVR (2) is connected between power transformation output end (1) and emanant power distribution network, the charging transmitting terminal (3) is connected to emanant power distribution network user terminal, the charging receiving end (4) includes being mounted on ferry-boat charging vehicle (5) described in the photovoltaic array of ferry-boat charging vehicle (5) tail body outer surface and the magnetic suction item of photovoltaic array surrounding to have energy-storage lithium battery group, the energy-storage lithium battery group is connect with charging receiving end (4).The charge power supply of system of the invention using ferry-boat charging vehicle as electric car, solves the problems, such as charging vehicle distribution network voltage shakiness using TVR (Thyristor Voltage Regulator) thyristor step voltage regulator.

Description

Flexible multi-state regulating switch regulating system for charging vehicle power distribution network
Technical Field
The invention belongs to the technical field of electric vehicle charging, and particularly relates to a flexible multi-state regulating switch regulating system for a charging vehicle power distribution network.
Background
With the large application of new energy automobiles, a large amount of demands are brought to the charging of the main body of the new energy automobile, namely the electric automobile. Mainly set up fixed electric pile that fills among the prior art, but this kind of fixed electric pile that fills is rare in the city, if oneself charges at home, also can bring a lot of potential safety hazards. Therefore, in actual use, the electric vehicle often runs out of power and cannot find a charging place. However, with the development of large-capacity power batteries, sufficient power can be provided for electric buses and light rail trains, but the large-capacity power batteries are bulky and cannot be applied to small household electric vehicles.
However, for a large-scale charging vehicle power grid, due to the fact that charging vehicle charging and discharging power density and charging vehicle charging and discharging time are short, and the charging vehicle access quantity is difficult to control, the intermittence and fluctuation caused by charging can cause the power flow of a power distribution network to change rapidly, and power of power distribution equipment can be out of limit when the power distribution equipment runs under the condition of high infiltration. The network reconstruction and the active power flow control are realized by means of the sectionalizers and the interconnection switches in the traditional power distribution network, the uncertainty of charging of a large-scale charging vehicle is difficult to deal with due to the limitation of an adjusting mode and the number of times of switch actions, and the user side of the charging vehicle is connected in a scattered mode, so that the power distribution network is in an uncontrollable, uncontrollable or difficultly-controlled state, and the global operation optimization is difficult to perform. In addition, the plug-type electric vehicle in the prior art needs to adopt a charging cable with a large diameter to complete charging, and has the advantages of long charging time, large charging current and high charging loss. The charging mode with the inserted cable also has the problem of difficult interface butt joint. If the charging time period is to be shortened, a larger charging current is required. For a common plug-pull type electric vehicle charging method, excessive current can cause heating and even burning of a charging cable, and meanwhile, a large proportion of electric energy transmission loss is caused.
Disclosure of Invention
The invention aims to provide a flexible multi-state regulating switch regulating system for a charging vehicle power distribution network, wherein a ferry charging vehicle is used as a charging power supply of an electric vehicle, a TVR (thyristor Voltage regulator) thyristor grading Voltage regulator is used for solving the problems of positive and negative Voltage deviation, frequent fluctuation, dynamic depression and the like caused by unstable Voltage of the charging vehicle power distribution network, and the charging vehicle adopts laser charging and has the advantages of high charging efficiency, safety, reliability and easy alignment and connection of a charging interface.
The invention relates to a flexible multi-state regulating switch regulating system for a charging vehicle power distribution network, which comprises a radial power distribution network, a TVR, a charging transmitting end, a charging receiving end and a ferry charging vehicle, and is characterized in that,
the TVR is connected between the power transformation output end and the radial distribution network,
the charging and sending end is connected with a user end of the radial distribution network and comprises a laser emission array and a magnetic leakage-proof surrounding plate surrounding the laser emission array, a magnetic attraction strip is arranged on the front end face of the magnetic leakage-proof surrounding plate,
the charging receiving end comprises a photovoltaic array arranged on the outer surface of the tail vehicle body of the ferry charging vehicle and magnetic absorbing strips around the photovoltaic array, the surface of the photovoltaic array is smooth with the outer surface of the tail vehicle body of the ferry charging vehicle, the magnetic absorbing strips around the photovoltaic array correspond to the magnetic absorbing strips on the front end surface of the magnetic anti-leakage coaming,
the ferry charging vehicle is provided with an energy storage lithium battery pack, and the energy storage lithium battery pack is connected with a charging receiving end.
Furthermore, the laser emitters of the laser emitting array are pulse lasers.
Furthermore, the charging transmitting terminal further comprises a camera for precise alignment of the charging transmitting terminal and the charging receiving terminal.
The invention has the beneficial effects that 1) the flexible multi-state regulating switch regulating system for the charging vehicle power distribution network adopts TVR as the flexible multi-state regulating switch, regardless of voltage fluctuation caused by charging vehicle load ferrying or voltage depression caused by line fault, when the voltage drops or rises to exceed a limit value, the flexible multi-state regulating switch can automatically make quick response directly according to a voltage difference value, and the state of the regulating switch is switched by controlling the on-off of a thyristor to compensate the voltage value of a corresponding gear to a distribution line, so that the voltage of the load end is kept within a rated value range; 2) the charging vehicle with the large-capacity lithium battery is used as the ferry vehicle, so that the ferry vehicle can quickly drive to the electric vehicle to be charged, the electric vehicle does not need to find a charging place, and the charging can be conveniently carried out at any time and any place; 3) the radial power distribution network is adopted, the tide direction and the voltage regulating direction of the radial power distribution network cannot be changed, the radial power distribution network is simple in structure and suitable for frequent connection and disconnection of ferry charging vehicles; 4) the laser charging mode is adopted, so that the quick connection and quick charging can be realized, and the charging current is large; 5) the laser charging adopts the electromagnetic attraction interface and the leakage-proof coaming, so that the charging sending end and the charging receiving end are easier to align and are not easy to cause laser leakage.
Drawings
FIG. 1 is a schematic diagram of a flexible multi-state regulating switch regulating system for a charging vehicle distribution network according to the present invention;
fig. 2 is a schematic structural diagram of a TVR of the flexible multi-state regulating switch regulating system for a charging vehicle distribution network of the present invention.
Wherein,
the system comprises a power transformation output end-1, a TVR-2, a charging transmitting end-3, a charging receiving end-4 and a ferry charging vehicle-5.
Detailed Description
The following describes the present invention with reference to the attached drawings.
As shown in fig. 1, the flexible multi-state regulating switch regulating system for the power distribution network of the charging vehicle comprises a radial power distribution network, a TVR2, a charging transmitting terminal 3, a charging receiving terminal 4 and a ferry charging vehicle 5, and is characterized in that,
the TVR2 is connected between the power transformation output terminal 1 and the radial distribution network,
the charging and sending end 3 is connected to a user side of the radial distribution network, the charging and sending end 3 comprises a laser emission array, a magnetic leakage-proof surrounding plate and a camera, the magnetic leakage-proof surrounding plate surrounds the laser emission array, and a magnetic attraction strip is arranged on the front end face of the magnetic leakage-proof surrounding plate. The laser emitter of the laser emitting array is a pulse laser. The camera is used for accurately aligning the charging sending end and the charging receiving end. The alignment method can adopt an image identification technology in the prior art, a camera is used for shooting a photovoltaic array image, the photovoltaic array image is sent back to a controller of the mobile charging car, and the central position of the photovoltaic array image is found out and compared with the central position of the laser emission array.
The charging receiving end 4 comprises a photovoltaic array and magnetic absorbing strips, the photovoltaic array is installed on the outer surface of the tail vehicle body of the ferry charging vehicle 5, the magnetic absorbing strips are arranged on the periphery of the photovoltaic array, the surface of the photovoltaic array is smooth with the outer surface of the tail vehicle body of the ferry charging vehicle 5, the magnetic absorbing strips on the periphery of the photovoltaic array correspond to the magnetic absorbing strips on the front end face of the magnetic leakage-proof enclosing plate, electromagnets can be adopted as the magnetic absorbing strips, when the magnetic absorbing strips are not absorbed, laser beams are not output, and leakage accidents are avoided.
Ferry-boat storage battery car 5 have the energy storage lithium cell group, this energy storage lithium cell group is connected with the receiving terminal 4 that charges, the solid-state titanium lithium cell of energy storage lithium cell group for the large capacity.
The working process of the system is that the user side of the power distribution network is arranged in a safe and open place easy to park, and the ferry charging vehicle 5 can be a medium-sized and small-sized passenger car or a large-sized passenger car according to the charging requirement. At ordinary times, the ferry charging vehicle 5 is parked or charged in the charging place, and if the user of the charging vehicle sends the position of the electric vehicle to be charged to the cloud server through the mobile terminal, the ferry charging vehicle 5 with sufficient electric power is sent to the position near the electric vehicle to be charged to charge the electric vehicle.
The ferry charging vehicle 5 is charged by aligning the charging sending end 3 with the charging receiving end 4, so that the magnetic attraction strips on the periphery of the photovoltaic array and the magnetic attraction strips on the front end face of the magnetic leakage-proof enclosing plate are attracted with each other; laser is emitted through the laser emitting array, absorbed by the photovoltaic array and transmitted to the energy storage battery pack for storage. The controller of ferry charging car 5 has wireless communication module, connects high in the clouds server through communication network, receives remote control instruction. The driver of the ferry charging vehicle 5 is also provided with a mobile terminal, and can know the position of the charging vehicle needing to be charged sent by the cloud server. Or the program on the cloud server automatically specifies the route to be traveled by the ferry charging vehicle 5.
The present invention relates to a ferry charging vehicle 5, which is convenient for charging electric vehicles at various positions, but is easy to cause voltage instability due to frequent connection and disconnection of a power distribution network by a load, and adopts a TVR to track the voltage change of the power network to realize automatic and frequent adjustment of the voltage of the power network, the power distribution network of the ferry charging vehicle adopts a radiation type, the trend direction and the voltage adjusting direction of the power distribution network are not changed, the structure of the present invention is simple, the TVR only carries out voltage increase and voltage adjustment, the structure is as shown in figure 2, the circuit uses a small number of silicon controlled elements, which is favorable for reducing the manufacturing cost of the TVR, the TVR carries out series compensation equipment for line voltage drop by continuously monitoring the output voltage of the TVR, the TVR adopted by the present invention mainly comprises a regulating transformer, a series transformer, a silicon controlled switch and a controller, the secondary winding of the TVR has four taps, the silicon controlled switch circuit comprises 8 thyristors, the tap voltage is matched with the silicon controlled switch, the tap voltage is connected to the power distribution network voltage drop, the load side voltage value UL of the ferry charging vehicle 5 can be measured by the secondary side of the regulating transformer, the voltage of the transformer or PT control winding to detect the user side, the user voltage change, the user, the load side of the user can be switched, the charging vehicle is controlled by the series switch, and the power distribution network voltage change, the user can be controlled by the power distribution.
Although the present invention has been described in terms of the preferred embodiment, it is not intended that the invention be limited to the embodiment. Any equivalent changes or modifications made without departing from the spirit and scope of the present invention also belong to the protection scope of the present invention. The scope of the invention should therefore be determined with reference to the appended claims.

Claims (3)

1. A flexible multi-state regulating switch regulating system for a charging vehicle power distribution network comprises a radial power distribution network, a TVR (2), a charging transmitting end (3), a charging receiving end (4) and a ferry charging vehicle (5),
the TVR (2) is connected between the power transformation output end (1) and the radial distribution network,
the charging and sending end (3) is connected with a user end of the radial distribution network, the charging and sending end (3) comprises a laser emission array and a magnetic leakage-proof coaming surrounding the laser emission array, a magnetic attraction strip is arranged on the front end face of the magnetic leakage-proof coaming,
the charging receiving end (4) comprises a photovoltaic array arranged on the outer surface of the tail body of the ferry charging vehicle (5) and magnetic absorbing strips around the photovoltaic array, the surface of the photovoltaic array is smooth with the outer surface of the tail body of the ferry charging vehicle (5), the magnetic absorbing strips around the photovoltaic array correspond to the magnetic absorbing strips on the front end surface of the magnetic anti-leakage coaming,
the ferry charging vehicle (5) is provided with an energy storage lithium battery pack, and the energy storage lithium battery pack is connected with a charging receiving end (4).
2. The flexible multi-state regulating switch regulating system for the power distribution network of the charging vehicle as claimed in claim 1, wherein the laser emitters of the laser emitting array are pulse lasers.
3. The system of claim 2, wherein the charging transmitter (3) further comprises a camera for precise alignment of the charging transmitter and receiver.
CN201910298133.4A 2019-04-15 2019-04-15 A kind of flexible multimode regulating switch regulating system for charging vehicle power distribution network Pending CN109969011A (en)

Priority Applications (1)

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CN201910298133.4A CN109969011A (en) 2019-04-15 2019-04-15 A kind of flexible multimode regulating switch regulating system for charging vehicle power distribution network

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CN201910298133.4A CN109969011A (en) 2019-04-15 2019-04-15 A kind of flexible multimode regulating switch regulating system for charging vehicle power distribution network

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CN109969011A true CN109969011A (en) 2019-07-05

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EP3406477A1 (en) * 2017-05-22 2018-11-28 Wellen Sham Enhanced wireless charging
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CN109560556A (en) * 2018-12-12 2019-04-02 国网山西省电力公司大同供电公司 A kind of voltage-regulating system adjusted based on flexible multimode regulating switch

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CN200973017Y (en) * 2006-10-23 2007-11-07 上海稳稳稳压器有限公司 Power-supply protector of high power flexible AC electric-saving cabinet
CN101640427A (en) * 2008-08-01 2010-02-03 新奥科技发展有限公司 Photovoltaic off-grid charging system for electric car
US20120044843A1 (en) * 2010-08-17 2012-02-23 Levy Paul S Method of interconnecting multiple Electrical Vehicle Slave Charge Stations to a single Master Charge Station using a central hub or daisy chain connection means
CN202455130U (en) * 2011-12-31 2012-09-26 比亚迪股份有限公司 Charging/discharging control system of electric vehicle and electric vehicle
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