CN108183622A - More level tandem type inversion outputs-direct grid charging integration apparatus - Google Patents

More level tandem type inversion outputs-direct grid charging integration apparatus Download PDF

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Publication number
CN108183622A
CN108183622A CN201810166640.8A CN201810166640A CN108183622A CN 108183622 A CN108183622 A CN 108183622A CN 201810166640 A CN201810166640 A CN 201810166640A CN 108183622 A CN108183622 A CN 108183622A
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CN
China
Prior art keywords
phase
inversion
battery
inversion unit
batteries
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Pending
Application number
CN201810166640.8A
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Chinese (zh)
Inventor
杜仲
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Suzhou Controlled Automotive Technology Co Ltd
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Suzhou Controlled Automotive Technology Co Ltd
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Priority to CN201810166640.8A priority Critical patent/CN108183622A/en
Publication of CN108183622A publication Critical patent/CN108183622A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • 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
    • B60L53/20—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 converters located in the vehicle
    • B60L53/24—Using the vehicle's propulsion converter for charging
    • H02J7/022—
    • 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
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Proposed by the present invention is that a kind of more level tandem type inversions export direct grid charging integration apparatus, and structure includes battery inversion unit that 3 in parallel, that structure is identical, and each battery inversion unit includes m H-bridge unit（m≥2）；H-bridge unit includes 4 power tubes and 1 element cell, and 4 power tubes are connected with each other with " H " shape circuit, and element cell connects two end connectors of " H " shape circuit；Advantage：1）By cell package into multiple modules, it is adapted to the input demand of H bridge cascaded inverters；2）Charging pile is not needed to, power grid is may be coupled directly to and charges to on-vehicle battery；3）The charge power control of battery can be realized by the control of voltage amplitude that the lag angle and inverter for adjusting inverter output export.

Description

More level tandem type inversion outputs-direct grid charging integration apparatus
Technical field
The present invention relates to a kind of more level tandem type inversion outputs-direct grid charging integration apparatus, belong to energy Source technical field of electric power.
Background technology
6 pipe full-bridge of tradition, 2 electrical level inverter that the vehicle-mounted battery of electric vehicle uses currently on the market needs big using high pressure The IGBT power tubes of electric current carry out the required sine wave of output driving motor to manufacture using PWM modulation control, due to this Inverter cannot be directly connected to power grid and charge to on-vehicle battery, other charging equipment be needed, mostly using the shape of charging pile Formula.In other words, the inverter of electric vehicle and charger are separated at present, and electric vehicle cannot be directly connected to by inverter On-vehicle battery is plugged on power grid, this forms very big obstruction to using and promoting for electric vehicle.
Invention content
Proposed by the present invention is a kind of more level tandem type inversion outputs-direct grid charging integration apparatus, uses H bridges Cascaded inverter substitutes current 6 pipe full-bridge, 2 electrical level inverter, and its object is to solve vehicle-mounted charge pond cannot connect directly to The problem of grid charging.
The technical solution of the present invention：More level tandem type inversion outputs-direct grid charging integration apparatus, including 3 parallel connections and the identical battery inversion unit of structure, respectively A phases battery inversion unit, B phase batteries inversion unit, C phase batteries Inversion unit；Each battery inversion unit includes m H-bridge unit, m >=2；
During work, A phase batteries inversion unit, B phase batteries inversion unit, C phase batteries inversion unit respectively with electric vehicle three Phase motor A phases input terminal, B phases input terminal, C phase input terminals are connected, and adjust the phase difference and three-phase electricity of 3 battery inversion units The consistency of machine, driving three phase electric machine operating；
During single-phase charging, A phase batteries inversion unit, B phase batteries inversion unit, C phase battery inversion units output terminal difference It starts to exchange fire line, inputs terminal connecting zero line, you can charge to the equipment using single phase poaer supply；
When three-phase charges, the output terminal of A phase batteries inversion unit, B phase batteries inversion unit, C phase battery inversion units is distinguished Connect the A phase firewires, B phase firewires and C phase firewires of three phase mains, you can charge to the equipment using three phase mains.
Advantages of the present invention：
1）By cell package into multiple modules, it is adapted to the input demand of H bridge cascaded inverters；
2）Charging pile is not needed to, power grid is may be coupled directly to and charges to on-vehicle battery；
3）The voltage amplitude that can be exported to the charge power control of battery by the lag angle and inverter for adjusting inverter output The control of degree and realize.
Description of the drawings
Attached drawing 1 is battery inversion unit structure diagram.
Attached drawing 2 is the principle schematic that battery inversion unit connects three phase electric machine.
Attached drawing 3 is single-phase power grid charging connection schematic diagram.
Attached drawing 4 is that three phase network plugs in connection diagram.
Attached drawing 5 is charging process waveform diagram.
Attached drawing 6,7 is embodiment charging process oscillogram.
Specific embodiment
As shown in Figure 1, more level tandem type inversion outputs-directly grid charging integration apparatus, structure includes 3 simultaneously Battery inversion unit join, that structure is identical, each battery inversion unit include m H-bridge unit（m≥2）.
The H-bridge unit includes 4 power tubes and 1 element cell, and 4 power tubes are connected with each other with " H " shape circuit, Element cell connects two end connectors of " H " shape circuit.
As shown in Fig. 2, using the equipment carry out inversion output when, by 3 battery inversion units in parallel respectively with it is electronic Three phase electric machine A phases input terminal, B phases input terminal, the C phase input terminals of automobile are connected, and corresponding battery inversion unit is respectively A phases Battery inversion unit, B phase batteries inversion unit, C phase battery inversion units；Adjust the phase difference and three of 3 battery inversion units Phase motor is consistent, so as to ensure the normal operation of three phase electric machine.
As shown in figure 3, using the equipment carry out single-phase charging when, by A phase batteries inversion unit, B phase batteries inversion unit, The output terminal of C phase battery inversion units is started to exchange fire line respectively, inputs terminal connecting zero line, you can the equipment is carried out using single phase poaer supply Charging.
As shown in figure 4, using the equipment carry out three-phase charging when, by A phase batteries inversion unit, B phase batteries inversion unit, The output terminal of C phase battery inversion units connects the A phase firewires, B phase firewires and C phase firewires of three phase mains respectively, you can uses three-phase Power supply charges to the equipment.
As shown in figure 5, battery is when charging, the output of inverter and synchronized but one angle of phase angular lag A is spent, physically inverter forms a minor scale power net in this way, and inverter forms minor scale power net and interconnected by inductance, in two power grids Synchronize and there are phase difference in the case of, electric energy transmits between two power grids, and transimission power is by formula（1）It obtains：
（1）
V1 in the formula, V2 are network voltage and inverter output voltage respectively, and a is power grid and inverter output voltage two is Phase difference between system, Z are the impedances of each phase, and P is the power transmitted between each phase.From formula（1）As can be seen that electricity When net plugs in battery, inverter output voltage delayed phase grid phase a.
Since network voltage is fixed, the impedance between inverter and power grid determines（Inductance determines）, charging work(is adjusted in this way There are two types of methods for rate：Adjust the angle of inverter output voltage lag network voltage or in the case of permanent delay angle, The charge power of battery can also be controlled by adjusting output voltage.
The present invention uses more level H-bridge cascade connection inverters, using inversion output function when normal vehicle operation, drives Electrical automobile travels；Operation becomes and a minor scale power net of synchronized phase difference lag when charging, between two power grids It is connected by reactance, bulk power grid conveys electric energy to vehicle inverter minor scale power net, and the electric energy of conveying is absorbed by battery, reaches vehicle mounted electric The purpose of pond charging.The present invention does not need to the required charging pile of current electric vehicle, can be directly connected to power grid to vehicle mounted electric Pond is charged, and the charge power control of battery can be exported by the lag angle and inverter for adjusting inverter output The control of voltage amplitude and realize.
Embodiment
The grid charging integration apparatus of more level tandem type inversions output-directly, structure include 3 in parallel, structures Identical battery inversion unit, each battery inversion unit include 3 H-bridge units；The H-bridge unit includes 4 power tubes With 1 element cell, 4 power tubes are connected with each other with " H " shape circuit, and element cell connects two end connectors of " H " shape circuit.
The power tube uses the metal-oxide half field effect transistor of 75V（MOSFET）, battery is using 48V accumulators, connection Inductance uses 50mH, and the output of each phase is 7 level.
It is charged using the alternating current of 220V/50Hz to battery, 60 ° of the phase angular lag between inverter and power grid, when charging is each Device current voltage waveform is shown in Fig. 6 and Fig. 7.

Claims (3)

  1. The tandem type of level more than 1. inversion output-direct grid charging integration apparatus, it is characterized in that including 3 parallel connections and structure phase Same battery inversion unit, respectively A phases battery inversion unit, B phase batteries inversion unit, C phase battery inversion units；Each electricity Pond inversion unit includes m H-bridge unit, m >=2；
    During work, A phase batteries inversion unit, B phase batteries inversion unit, C phase batteries inversion unit respectively with electric vehicle three Phase motor A phases input terminal, B phases input terminal, C phase input terminals are connected, and adjust the phase difference and three-phase electricity of 3 battery inversion units The consistency of machine, driving three phase electric machine operating；
    During single-phase charging, A phase batteries inversion unit, B phase batteries inversion unit, C phase battery inversion units output terminal difference It starts to exchange fire line, public terminal connecting zero line, you can charged using single phase poaer supply to the equipment；
    When three-phase charges, the output terminal of A phase batteries inversion unit, B phase batteries inversion unit, C phase battery inversion units is distinguished Connect the A phase firewires, B phase firewires and C phase firewires of three phase mains, you can charge to the equipment using three phase mains.
  2. 2. more level tandem type inversion outputs-direct grid charging integration apparatus according to claim 1, it is characterized in that The H-bridge unit includes 4 power tubes and 1 element cell, and 4 power tubes are connected with each other with " H " shape circuit, " H " shape line The two termination unit batteries on road.
  3. 3. more level tandem type inversion outputs-directly grid charging integration apparatus, feature according to claim 1 exists In battery inversion unit is when charging, one angle a of the output of inverter and synchronized but phase angular lag, two A synchronized and there are phase difference in the case of, electric energy transmits between two power grids, and transimission power is by formula（1）It obtains：
    （1）
    Wherein V1 is network voltage, and V2 is inverter output voltage, and a is between power grid and inverter output voltage two systems Phase difference, Z are the impedances of each phase, and P is the power transmitted between each phase.
CN201810166640.8A 2018-02-28 2018-02-28 More level tandem type inversion outputs-direct grid charging integration apparatus Pending CN108183622A (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109217421A (en) * 2018-09-27 2019-01-15 苏州唯控汽车科技有限公司 Cascade type DC-to-AC converter rotates pulsewidth and exports battery equilibrium Active Control Method
CN109693557A (en) * 2018-12-29 2019-04-30 苏州唯控汽车科技有限公司 Multiple battery uses modular stages with and hangs together carrier vehicle inverter system
CN109703390A (en) * 2018-12-29 2019-05-03 苏州唯控汽车科技有限公司 The orthogonal charging unit and method of modular cart battery system
GB2578567A (en) * 2018-07-30 2020-05-20 Howard Riley Paul Rapid replacement battery for electric vehicles
DE102021110110A1 (en) 2021-04-21 2022-10-27 Gerald Bode Storage device and method for transmitting a direct current

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CN103580050A (en) * 2013-11-11 2014-02-12 国家电网公司 High-power modularization multi-level lithium battery energy storage converter device
CN106602999A (en) * 2016-12-21 2017-04-26 湖北工业大学 Super-capacitor-based hybrid cascade photovoltaic inverter and control method
CN207884515U (en) * 2018-02-28 2018-09-18 苏州唯控汽车科技有限公司 More level tandem type inversion outputs-directly grid charging integration apparatus

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CN1917349A (en) * 2006-08-25 2007-02-21 华中科技大学 High voltage, large powered convertor in type of transformer with no input/output based on cascade connection
CN102290828A (en) * 2011-08-12 2011-12-21 广州智光电气股份有限公司 Cascaded photovoltaic grid-connected inverter and control method
CN102684543A (en) * 2012-06-01 2012-09-19 南京博时上辉电子科技有限公司 350W small power modular H inverter bridge cascade stage solar inverter system
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2578567A (en) * 2018-07-30 2020-05-20 Howard Riley Paul Rapid replacement battery for electric vehicles
CN109217421A (en) * 2018-09-27 2019-01-15 苏州唯控汽车科技有限公司 Cascade type DC-to-AC converter rotates pulsewidth and exports battery equilibrium Active Control Method
CN109693557A (en) * 2018-12-29 2019-04-30 苏州唯控汽车科技有限公司 Multiple battery uses modular stages with and hangs together carrier vehicle inverter system
CN109703390A (en) * 2018-12-29 2019-05-03 苏州唯控汽车科技有限公司 The orthogonal charging unit and method of modular cart battery system
DE102021110110A1 (en) 2021-04-21 2022-10-27 Gerald Bode Storage device and method for transmitting a direct current
WO2022223494A1 (en) 2021-04-21 2022-10-27 Bode Gerald Storage device and method for transmitting a direct current

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