CN102427267A - Modular charging system for electric automobile - Google Patents
Modular charging system for electric automobile Download PDFInfo
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- CN102427267A CN102427267A CN2011103319405A CN201110331940A CN102427267A CN 102427267 A CN102427267 A CN 102427267A CN 2011103319405 A CN2011103319405 A CN 2011103319405A CN 201110331940 A CN201110331940 A CN 201110331940A CN 102427267 A CN102427267 A CN 102427267A
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Abstract
The invention relates to a modular charging system for an electric automobile. The modular charging system comprises an AC (alternating current) distribution module, a plurality of rectifying modules, a DC (direct current) output control module and a monitoring module, wherein the AC distribution module is connected with an AC power grid; the rectifying modules are used for converting AC input by the AC distribution module into DC and outputting the DC; the DC output control module is used for outputting voltage and current required by loading according to load charging information; the current output by the rectifying modules is input to the DC output control module; the monitoring module is used for controlling the rectifying modules according to actual current output by the DC output control module and comprises a DC output monitoring unit which is connected with the DC output control module and is used for acquiring the actual charge current output by the DC output control module, and an operation judgment unit which is used for controlling the rectifying modules; and rated working current of the rectifying modules and redundant quantity X of the rectifying modules are preset in the operation judgment unit. The modular charging system has the advantages of ensured safety redundancy and reliability of the system, high system working efficiency, long service life and high reliability.
Description
Technical field
The present invention relates to a kind of modularization charging system that is used for electric automobile.
Background technology
In the face of the huge challenge of the environment and the energy, the technological change of energy source of car dynamical system has become the focus and the core of automotive engineering development, and this is that Domestic Automotive Industry autonomous innovation, spanning development provide historic opportunities.Electric automobile is as the important component part of new forms of energy strategies and intelligent grid, and one of the strategic new industry confirmed of State Council, will become the emphasis that Chinese Automobile Industry ' and energy industry from now on develop.Yet ev industry is a system engineering, and charging system for electric automobile is one of key link, must realize common coordinated development with the electric automobile other field.
One of core of charging system for electric automobile is a rectification module, and rectification module efficient when exporting near 100% power is higher, generally can reach about 92%.But when power output was low, during like 20% load, because the inside inherent loss of rectification module, its efficient was not high, has only about 80% usually.
When utilizing traditional electric automobile charging system control method that charging batteries of electric automobile is controlled; Along with the battery accommodating electric charge increases; Charging current is along with the increase in charging interval reduces gradually, thereby causes rectification module along with the increase in charging interval, and efficient reduces gradually.All power models long-term work always in the charging system causes the rectification module long period to be operated under the state of low load, poor efficiency, causes total losses very big, and power consumption is many.
Summary of the invention
No matter for overcoming the traditional electric automobile charging system is that large current charge or all power models of low current charge are all worked always; Cause loss big; The shortcoming that power consumption is many; The invention provides a kind of quantity that can adjust charging module according to the actual output capacity of charging system automatically, can guarantee the safe redundancy and the reliability of system, can improve the operating efficiency of charging system again; Prolong the useful life of charging module, improve the modularization charging system that is used for electric automobile of the reliability of system.
The modularization charging system that is used for electric automobile; Comprise the AC distribution module that is connected with AC network; Convert the alternating current of AC distribution module input the rectification module of direct current output into and according to the direct current output control module of the required voltage and current of the charge information output loading of load;
It is characterized in that: described rectification module has a plurality of, and the electric current sum of rectification module output is imported in the described direct current output control module;
Described modularization charging system also is provided with the monitoring module of controlling rectification module according to the actual current of direct current output control module output; Described monitoring module comprises the direct current output monitoring unit that is connected, obtains the actual charge current of DC control module output with described direct current output control module; Computing judging unit with the described rectification module of control; Be preset with the rated operational current
of described rectification module and the redundant quantity X of rectification module in the described computing judging unit, the method that described computing judging unit is controlled described rectification module may further comprise the steps:
1), obtains the actual charge current
that described direct current output monitoring unit obtains, the quantity
of the rectification module of the current required nominal operation of calculating acquisition;
2), obtain the quantity
of current in running order rectification module, relatively
:
if
; Then make
individual in running order rectification module entering resting state arbitrarily, be in output current=0 of the rectification module of resting state to described DC control module;
As if
, then keep the rectification module quantity of work at present;
if
; Then wake
individual rectification module that is in resting state up, the rectification module that is waken up is a rated operational current to the output current of described DC control module.
The rectification charging module redundancy is meant in the system that the rectification charging module in the hypothesis operate as normal has module failure and when logging off, other rectification charging module can also continue output in the system, and then the malfunctioning module maximum quantity of this hypothesis is called the redundant module number.But said dormancy is meant major loop, radiator fan and the part control circuit of closing rectifier module automatically continues to keep accessory power supply and other part control circuit to work on.The described rectification charging module that is meant automatic unlatching dormancy of waking up is incorporated system's operate as normal into.
Further, be preset with dormancy period in the described computing judging unit, described computing judging unit is selected the rectification module of initial dormancy at random, and rectification module takes turns dormancy in described dormancy period.Dormancy period is artificial the setting.
Further; Described rectification module is connected with the direct current output control module with the AC distribution module through connector respectively; Described rectification charging module comprise accomplish the ac input power factor correcting, make exchange the APFC rectification unit that input current waveform and AC-input voltage waveform be consistent and can guarantee described rectification module number direct voltage remain on the resonance type DC/DC conversion twin-stage circuit of unified voltage standard.
Further; Described direct current output control module obtains the charge information of load through CAN communication from the vehicle mounted battery management system of electric automobile to be charged, and described charge information comprises that the battery pack maximum bears the current voltage of voltage and current, battery pack, battery pack SOC, current required charging current; Described direct current output control module adopts constant voltage and current limiting mode output voltage and electric current.
Further; Described monitoring module also comprises the AC distribution monitoring unit of the ac signal of the described AC distribution module input of monitoring, and described monitoring module is connected with described AC distribution module, each rectification module and direct current output control module respectively through the CAN signal cable.Operation, control, monitoring, failure logging storage and failure diagnosis, operational factor and the state of the responsible whole modular power vehicle charging of monitoring module system show, provide this locality and remote interface.
Technical conceive of the present invention is: the quantity that is in the rectification module of nominal operation state according to the required actual charge current adjustment in real time of load; Adjust the electric current and the voltage of output through the quantity that increases or reduce rectification module; The rectification module that work all is in high efficiency nominal operation state, and (M is the total quantity of rectification module to a dormancy M-N-X rectification module, and N is the rectification module quantity that needs work; X is redundant rectification module quantity); The rectification module that need not work is in resting state, reduces or avoids loss, reaches purpose of energy saving.
Make M-N-X rectification module take turns dormancy, even operating time of rectification module, prolong useful life of charging system, improved reliability.
The present invention has the quantity that can adjust charging module according to the actual output capacity of charging system automatically; Can guarantee the safe redundancy and the reliability of system; Can improve the operating efficiency of charging system again, the long service life of charging module, the advantage that the reliability of system is high.
Description of drawings
Fig. 1 is a modular structure sketch map of the present invention.
Fig. 2 is the flow chart of computing judging unit control rectification module.
Embodiment
With reference to accompanying drawing, further specify the present invention:
The modularization charging system that is used for electric automobile; Comprise the AC distribution module that is connected with AC network; Convert the alternating current of AC distribution module input the rectification module of direct current output into and according to the direct current output control module of the required voltage and current of the charge information output loading of load;
Described rectification module has a plurality of, and the electric current sum of rectification module output is imported in the described direct current output control module;
Described modularization charging system also is provided with the monitoring module of controlling rectification module according to the actual current of direct current output control module output; Described monitoring module comprises the direct current output monitoring unit that is connected, obtains the actual charge current of DC control module output with described direct current output control module; Computing judging unit with the described rectification module of control; Be preset with the rated operational current
of described rectification module and the redundant quantity X of rectification module in the described computing judging unit, the method that described computing judging unit is controlled described rectification module may further comprise the steps:
1), obtains the actual charge current
that described direct current output monitoring unit obtains, the quantity
of the rectification module of the current required nominal operation of calculating acquisition;
2), obtain the quantity
of current in running order rectification module, relatively
:
if
; Then make
individual in running order rectification module entering resting state arbitrarily, be in output current=0 of the rectification module of resting state to described DC control module;
As if
, then keep the rectification module quantity of work at present;
if
; Then wake
individual rectification module that is in resting state up, the rectification module that is waken up is a rated operational current to the output current of described DC control module.
Be preset with dormancy period in the described computing judging unit, described computing judging unit is selected the rectification module of initial dormancy at random, and rectification module takes turns dormancy in described dormancy period.Dormancy period is artificial the setting.
Described rectification module is connected with the direct current output control module with the AC distribution module through connector respectively; Described rectification charging module comprise accomplish the ac input power factor correcting, make exchange the APFC rectification unit that input current waveform and AC-input voltage waveform be consistent and can guarantee described rectification module number direct voltage remain on the resonance type DC/DC conversion twin-stage circuit of unified voltage standard.
Described direct current output control module obtains the charge information of load through CAN communication from the vehicle mounted battery management system of electric automobile to be charged, and described charge information comprises that the battery pack maximum bears the current voltage of voltage and current, battery pack, battery pack SOC, current required charging current; Described direct current output control module adopts constant voltage and current limiting mode output voltage and electric current.
Described monitoring module also comprises the AC distribution monitoring unit of the ac signal of the described AC distribution module input of monitoring, and described monitoring module is connected with described AC distribution module, each rectification module and direct current output control module respectively through the CAN signal cable.
Technical conceive of the present invention is: when charging system begins batteries of electric automobile charged; Because the batteries of electric automobile quantity of electric charge seldom; Charging current is bigger; Along with the increase of batteries of electric automobile amount of charge stored, charging system reduces the charging current of battery gradually, and the present invention is along with the quantity that reduces operational module gradually in charging interval.
Be in the quantity of the rectification module of nominal operation state according to the required actual charge current adjustment in real time of load; Adjust the electric current and the voltage of output through the quantity that increases or reduce rectification module; The rectification module that work all is in high efficiency nominal operation state, and (M is the total quantity of rectification module to a dormancy M-N-X rectification module, and N is the rectification module quantity that needs work; X is redundant rectification module quantity); The rectification module that need not work is in resting state, reduces or avoids loss, reaches purpose of energy saving.
Make M-N-X rectification module take turns dormancy, even operating time of rectification module, prolong useful life of charging system, improved reliability.
The present invention has the quantity that can adjust charging module according to the actual output capacity of charging system automatically; Can guarantee the safe redundancy and the reliability of system; Can improve the operating efficiency of charging system again, the long service life of charging module, the advantage that the reliability of system is high.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; Protection scope of the present invention should not be regarded as and only limit to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (6)
1. the modularization charging system that is used for electric automobile; Comprise the AC distribution module that is connected with AC network; Convert the alternating current of AC distribution module input the rectification module of direct current output into and according to the direct current output control module of the required voltage and current of the charge information output loading of load;
It is characterized in that: described rectification module has a plurality of, and the electric current sum of rectification module output is imported in the described direct current output control module;
Described modularization charging system also is provided with the monitoring module of controlling rectification module according to the actual current of direct current output control module output; Described monitoring module comprises the direct current output monitoring unit that is connected, obtains the actual charge current of DC control module output with described direct current output control module; Computing judging unit with the described rectification module of control; Be preset with the rated operational current
of described rectification module and the redundant quantity X of rectification module in the described computing judging unit, the method that described computing judging unit is controlled described rectification module may further comprise the steps:
1), obtains the actual charge current
that described direct current output monitoring unit obtains, the quantity
of the rectification module of the current required nominal operation of calculating acquisition;
2), obtain the quantity
of current in running order rectification module, relatively
:
if
; Then make
individual in running order rectification module entering resting state arbitrarily, be in output current=0 of the rectification module of resting state to described DC control module;
As if
, then keep the rectification module quantity of work at present;
if
; Then wake
individual rectification module that is in resting state up, the rectification module that is waken up is a rated operational current to the output current of described DC control module.
2. the modularization charging system that is used for electric automobile as claimed in claim 1; It is characterized in that: be preset with dormancy period in the described computing judging unit; Described computing judging unit is selected the rectification module of initial dormancy at random, and rectification module takes turns dormancy in described dormancy period.
3. dormancy period is artificial the setting.
4. according to claim 1 or claim 2 the modularization charging system that is used for electric automobile; It is characterized in that: described rectification module is connected with the direct current output control module with the AC distribution module through connector respectively; Described rectification charging module comprise accomplish the ac input power factor correcting, make exchange the APFC rectification unit that input current waveform and AC-input voltage waveform be consistent and can guarantee described rectification module number direct voltage remain on the resonance type DC/DC conversion twin-stage circuit of unified voltage standard.
5. the modularization charging system that is used for electric automobile as claimed in claim 3; It is characterized in that: described direct current output control module obtains the charge information of load through CAN communication from the vehicle mounted battery management system of electric automobile to be charged, and described charge information comprises that the battery pack maximum bears the current voltage of voltage and current, battery pack, battery pack SOC, current required charging current; Described direct current output control module adopts constant voltage and current limiting mode output voltage and electric current.
6. the modularization charging system that is used for electric automobile as claimed in claim 4; It is characterized in that: described monitoring module also comprises the AC distribution monitoring unit of the ac signal of the described AC distribution module input of monitoring, and described monitoring module is connected with described AC distribution module, each rectification module and direct current output control module respectively through the CAN signal cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103319405A CN102427267A (en) | 2011-10-28 | 2011-10-28 | Modular charging system for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103319405A CN102427267A (en) | 2011-10-28 | 2011-10-28 | Modular charging system for electric automobile |
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|---|---|
| CN102427267A true CN102427267A (en) | 2012-04-25 |
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ID=45961217
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|---|---|---|---|
| CN2011103319405A Pending CN102427267A (en) | 2011-10-28 | 2011-10-28 | Modular charging system for electric automobile |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201755A (en) * | 2014-09-22 | 2014-12-10 | 哈尔滨工程大学 | Vehicle-mounted diesel power generation system used in direct-current power distribution mode and energy management method of vehicle-mounted diesel power generation system |
| CN104734140A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Multi-input direct-current modular electrical system and control method thereof |
| CN106114253A (en) * | 2016-06-28 | 2016-11-16 | 南京国电南自城乡电网自动化工程有限公司 | A kind of off-board charging pile control method of loaded self-adaptive |
| CN106410873A (en) * | 2015-07-30 | 2017-02-15 | 中兴新能源汽车有限责任公司 | Wireless charging control method, server, and adjusting device |
| CN113329541A (en) * | 2021-05-18 | 2021-08-31 | 深圳供电局有限公司 | Lighting control system |
| CN114301050A (en) * | 2021-11-16 | 2022-04-08 | 科华数据股份有限公司 | Control method of uninterruptible power supply rectifier module, terminal and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS63154440A (en) * | 1986-12-18 | 1988-06-27 | Fuji Electric Co Ltd | Feeder system for dc electric car |
| CN101630918A (en) * | 2009-05-12 | 2010-01-20 | 中兴通讯股份有限公司 | Energy-saving modular high-voltage direct current (DC) power system |
| CN102025182A (en) * | 2010-11-30 | 2011-04-20 | 梁一桥 | Modular charging/discharging system of power battery pack of multifunctional electromobile |
-
2011
- 2011-10-28 CN CN2011103319405A patent/CN102427267A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63154440A (en) * | 1986-12-18 | 1988-06-27 | Fuji Electric Co Ltd | Feeder system for dc electric car |
| CN101630918A (en) * | 2009-05-12 | 2010-01-20 | 中兴通讯股份有限公司 | Energy-saving modular high-voltage direct current (DC) power system |
| CN102025182A (en) * | 2010-11-30 | 2011-04-20 | 梁一桥 | Modular charging/discharging system of power battery pack of multifunctional electromobile |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734140A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Multi-input direct-current modular electrical system and control method thereof |
| CN104734140B (en) * | 2013-12-24 | 2018-02-09 | 珠海格力电器股份有限公司 | Multi-input direct current modular electric system and its control method |
| CN104201755A (en) * | 2014-09-22 | 2014-12-10 | 哈尔滨工程大学 | Vehicle-mounted diesel power generation system used in direct-current power distribution mode and energy management method of vehicle-mounted diesel power generation system |
| CN104201755B (en) * | 2014-09-22 | 2016-09-14 | 哈尔滨工程大学 | Vehicle-mounted diesel generating system under a kind of DC distribution mode and energy management method thereof |
| CN106410873A (en) * | 2015-07-30 | 2017-02-15 | 中兴新能源汽车有限责任公司 | Wireless charging control method, server, and adjusting device |
| CN106114253A (en) * | 2016-06-28 | 2016-11-16 | 南京国电南自城乡电网自动化工程有限公司 | A kind of off-board charging pile control method of loaded self-adaptive |
| CN113329541A (en) * | 2021-05-18 | 2021-08-31 | 深圳供电局有限公司 | Lighting control system |
| CN114301050A (en) * | 2021-11-16 | 2022-04-08 | 科华数据股份有限公司 | Control method of uninterruptible power supply rectifier module, terminal and storage medium |
| CN114301050B (en) * | 2021-11-16 | 2024-04-19 | 科华数据股份有限公司 | Control method, terminal and storage medium of uninterruptible power supply rectifying module |
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Application publication date: 20120425 |