CN107204249A - A kind of high pressure is powered and power-off method - Google Patents
A kind of high pressure is powered and power-off method Download PDFInfo
- Publication number
- CN107204249A CN107204249A CN201710392371.2A CN201710392371A CN107204249A CN 107204249 A CN107204249 A CN 107204249A CN 201710392371 A CN201710392371 A CN 201710392371A CN 107204249 A CN107204249 A CN 107204249A
- Authority
- CN
- China
- Prior art keywords
- control centre
- contactor
- high pressure
- main contactor
- disconnects
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/002—Monitoring or fail-safe circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
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- Emergency Protection Circuit Devices (AREA)
Abstract
A kind of high pressure is powered and power-off method, and energizing step includes：Control centre sends high pressure electrical instruction, and control pre-charge contactor closes to enter line precharge；Whether control centre judges to be pre-charged within the first threshold time completes, if not having, and stops precharge and failure is reported, if completing, control main contactor closure；Control centre judges whether main contactor closes, if not having, and stops precharge and failure is reported, if closure, keeps pre-charge contactor closure；Deenergizing step includes：Control centre sends high pressure cut-offing instruction, and control main contactor disconnects；Control centre judges whether main contactor disconnects, if can not disconnect, failure is reported, and performs low-voltage power-off, if normal disconnect, and control pre-charge contactor disconnects；Control centre judges whether pre-charge contactor disconnects, if can not disconnect, failure is reported, and performs low-voltage power-off, if normal disconnect, performs active discharge；After remaining direct current is reduced to safe voltage, low-voltage power-off is performed.
Description
Technical field
It is powered the present invention relates to a kind of high pressure and power-off method.
Background technology
Existing high pressure electrifying method is typically as follows：Pre-charge contactor closure is controlled to carry out according to high pressure electrical instruction
Precharge, is waited after the completion of being pre-charged, then controls main contactor to close, and finally disconnects pre-charge contactor, is completed high pressure and was powered
Journey.Existing high pressure power-off method is typically as follows：Control main contactor to disconnect according to high pressure cut-offing instruction, then perform active release
Electricity, after the remaining direct current of high-tension apparatus is reduced to safe voltage, performs low-voltage power-off, is finally completed high pressure power process.
Existing high pressure is powered, power-off method, there is such a problem：Because after being powered per sub-high pressure, can disconnect pre-
Charging contactor, so cause main contactor surprisingly to disconnect under some fortuitous events, or when entering horizontal high voltage power-off every time, may
Cause main contactor arcing, influence the life-span of main contactor, bring potential safety hazard.Meanwhile, the maintenance replacement cost of main contactor
It is higher, maintenance cost can be increased.
The content of the invention
The purpose of the present invention is to overcome weak point of the prior art to be powered there is provided a kind of high pressure and power-off method, is prevented
Only main contactor surprisingly disconnects in the energized state, prevents main contactor from phenomenon of arc discharge occurring in the power-off state, improves high pressure
The security for being powered and powering off.
The purpose of the present invention is achieved through the following technical solutions：
A kind of high pressure is powered and power-off method, including energizing step and deenergizing step；
The energizing step includes：
Control centre sends high pressure electrical instruction, and control pre-charge contactor closes to enter line precharge；
Whether control centre judges to be pre-charged within the first threshold time completes, if not completed within the first threshold time
Precharge, then stop being pre-charged and carrying out failure reporting, if completing precharge within the first threshold time, control main contactor
Closure；
Control centre judges whether main contactor closes, if control centre is sent after main contactor close command, main contact
Device can not be closed, then stop being pre-charged and carrying out failure reporting, if control centre is sent after main contactor close command, main contact
Device normally closed, then keep pre-charge contactor closure；
Complete high pressure galvanization；
The deenergizing step includes：
Control centre sends high pressure cut-offing instruction, and control main contactor disconnects；
Control centre judges whether main contactor disconnects, if control centre is sent after main contactor open command, main contact
Device can not disconnect, then carry out failure and report, then perform low-voltage power-off, if control centre is sent after main contactor open command,
Main contactor normally disconnects, then controls pre-charge contactor to disconnect；
Control centre judges whether pre-charge contactor disconnects, if control centre sends pre-charge contactor open command
Afterwards, pre-charge contactor can not disconnect, then carry out failure and report, low-voltage power-off is then performed, if control centre sends precharge
After contactor open command, pre-charge contactor normally disconnects, then performs active discharge；
After the remaining direct current of high-tension apparatus is reduced to safe voltage, low-voltage power-off is performed；
Complete high pressure power process.
In one of the embodiments, the first threshold time is 1S to 3S.
In one of the embodiments, the first threshold time is 2S.
Compared to the energization of existing high pressure, power-off method, the present invention has the advantages that：
1st, after high pressure galvanization is completed, pre-charge contactor is closure, in high-tension apparatus course of normal operation,
Preliminary filling loop cannot participate in work, it is ensured that the safety in preliminary filling loop by major loop short circuit；
When the 2nd, causing main contactor surprisingly to disconnect there is fortuitous event, or entering horizontal high voltage power-off every time, preliminary filling loop
Afterflow can be played a part of, play a part of protecting main contactor, reduce the maintenance cost of equipment；
3rd, under preliminary filling loop protection, the voltge surge that main contactor is powered and is subject to when powering off is small, is connect using identical
Tentaculum, its life-span can greatly prolong, it is possible to decrease high-tension apparatus use cost；
4th, under preliminary filling loop protection, the effect of the higher contactor of performance can also be reached with the relatively low contactor of performance
Really, it is possible to decrease the manufacturing cost of high-tension apparatus.
Brief description of the drawings
High pressure energizations and the energizing step flow chart of power-off method of the Fig. 1 for one embodiment of the invention；
High pressure energizations and the deenergizing step flow chart of power-off method of the Fig. 2 for one embodiment of the invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the better embodiment of the present invention.But, the present invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make to understand more the disclosure
Plus it is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " including one or more
The arbitrary and all combination of related Listed Items.
A kind of high pressure is powered and power-off method, including energizing step and deenergizing step.
As shown in figure 1, its high pressure energization and the energizing step flow chart of power-off method for one embodiment of the invention.
The energizing step includes：
Control centre sends high pressure electrical instruction, and control pre-charge contactor closes to enter line precharge；
Whether control centre judges to be pre-charged within the first threshold time completes, if not completed within the first threshold time
Precharge, then stop being pre-charged and carrying out failure reporting, if completing precharge within the first threshold time, control main contactor
Closure；In the present embodiment, the first threshold time is 1S to 3S, it is preferred that the first threshold time is 2S.
Control centre judges whether main contactor closes, if control centre is sent after main contactor close command, main contact
Device can not be closed, then stop being pre-charged and carrying out failure reporting, if control centre is sent after main contactor close command, main contact
Device normally closed, then keep pre-charge contactor closure；
Complete high pressure galvanization；
As shown in Fig. 2 its high pressure energization and the deenergizing step flow chart of power-off method for one embodiment of the invention.
The deenergizing step includes：
Control centre sends high pressure cut-offing instruction, and control main contactor disconnects；
Control centre judges whether main contactor disconnects, if control centre is sent after main contactor open command, main contact
Device can not disconnect, then carry out failure and report, then perform low-voltage power-off, if control centre is sent after main contactor open command,
Main contactor normally disconnects, then controls pre-charge contactor to disconnect；
Control centre judges whether pre-charge contactor disconnects, if control centre sends pre-charge contactor open command
Afterwards, pre-charge contactor can not disconnect, then carry out failure and report, low-voltage power-off is then performed, if control centre sends precharge
After contactor open command, pre-charge contactor normally disconnects, then performs active discharge；
After the remaining direct current of high-tension apparatus is reduced to safe voltage, low-voltage power-off is performed；
Complete high pressure power process.
Compared to the energization of existing high pressure, power-off method, the present invention has the advantages that：
1st, after high pressure galvanization is completed, pre-charge contactor is closure, in high-tension apparatus course of normal operation,
Preliminary filling loop cannot participate in work, it is ensured that the safety in preliminary filling loop by major loop short circuit；
When the 2nd, causing main contactor surprisingly to disconnect there is fortuitous event, or entering horizontal high voltage power-off every time, preliminary filling loop
Afterflow can be played a part of, play a part of protecting main contactor, reduce the maintenance cost of equipment；
3rd, under preliminary filling loop protection, the voltge surge that main contactor is powered and is subject to when powering off is small, is connect using identical
Tentaculum, its life-span can greatly prolong, it is possible to decrease high-tension apparatus use cost；
4th, under preliminary filling loop protection, the effect of the higher contactor of performance can also be reached with the relatively low contactor of performance
Really, it is possible to decrease the manufacturing cost of high-tension apparatus.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (3)
1. a kind of high pressure is powered and power-off method, it is characterised in that including energizing step and deenergizing step；
The energizing step includes：
Control centre sends high pressure electrical instruction, and control pre-charge contactor closes to enter line precharge；
Whether control centre judges to be pre-charged within the first threshold time completes, if without completion preliminary filling within the first threshold time
Electricity, then stop being pre-charged and carrying out failure reporting, if completing precharge within the first threshold time, control main contactor is closed
Close；
Control centre judges whether main contactor closes, if control centre is sent after main contactor close command, main contactor without
Method is closed, then stops being pre-charged and carrying out failure reporting, if control centre is sent after main contactor close command, main contactor is
Through normally closed, then pre-charge contactor closure is kept；
Complete high pressure galvanization；
The deenergizing step includes：
Control centre sends high pressure cut-offing instruction, and control main contactor disconnects；
Control centre judges whether main contactor disconnects, if control centre is sent after main contactor open command, main contactor without
Method disconnects, then carries out failure and report, then perform low-voltage power-off, if control centre is sent after main contactor open command, master connects
Tentaculum normally disconnects, then controls pre-charge contactor to disconnect；
Control centre judges whether pre-charge contactor disconnects, if control centre is sent after pre-charge contactor open command, in advance
Charging contactor can not disconnect, then carry out failure and report, low-voltage power-off is then performed, if control centre sends pre-charge contactor
After open command, pre-charge contactor normally disconnects, then performs active discharge；
After the remaining direct current of high-tension apparatus is reduced to safe voltage, low-voltage power-off is performed；
Complete high pressure power process.
2. high pressure according to claim 1 is powered and power-off method, it is characterised in that the first threshold time be 1S extremely
3S。
3. high pressure according to claim 2 is powered and power-off method, it is characterised in that the first threshold time is 2S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710392371.2A CN107204249A (en) | 2017-05-27 | 2017-05-27 | A kind of high pressure is powered and power-off method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710392371.2A CN107204249A (en) | 2017-05-27 | 2017-05-27 | A kind of high pressure is powered and power-off method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107204249A true CN107204249A (en) | 2017-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710392371.2A Pending CN107204249A (en) | 2017-05-27 | 2017-05-27 | A kind of high pressure is powered and power-off method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583287A (en) * | 2018-04-28 | 2018-09-28 | 北京新能源汽车股份有限公司 | Electric automobile high-voltage power-on and power-off control method and device and electric automobile |
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| CN101872690A (en) * | 2010-06-02 | 2010-10-27 | 顾刚 | Arcless switching circuit and control method as well as power expansion method thereof |
| CN201985573U (en) * | 2011-02-14 | 2011-09-21 | 天津市松正电动汽车技术股份有限公司 | Precharge management system |
| CN102474172A (en) * | 2009-08-17 | 2012-05-23 | 西门子公司 | Method for discharging intermediate circuit capacitor of intermediate voltage circuit converter |
| CN104709091A (en) * | 2013-12-13 | 2015-06-17 | 北汽福田汽车股份有限公司 | Power-on method and power-off method of full electric vehicle |
| CN204425003U (en) * | 2015-03-24 | 2015-06-24 | 长城汽车股份有限公司 | A kind of pre-charge circuit and hybrid vehicle |
| CN105172608A (en) * | 2015-08-03 | 2015-12-23 | 中通客车控股股份有限公司 | Control circuit and method for power on and power off of electric automobile high-pressure system |
| CN106300484A (en) * | 2015-06-08 | 2017-01-04 | 深圳市沃特玛电池有限公司 | A kind of charging system of compatible alternating current-direct current input |
-
2017
- 2017-05-27 CN CN201710392371.2A patent/CN107204249A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102474172A (en) * | 2009-08-17 | 2012-05-23 | 西门子公司 | Method for discharging intermediate circuit capacitor of intermediate voltage circuit converter |
| CN101872690A (en) * | 2010-06-02 | 2010-10-27 | 顾刚 | Arcless switching circuit and control method as well as power expansion method thereof |
| CN201985573U (en) * | 2011-02-14 | 2011-09-21 | 天津市松正电动汽车技术股份有限公司 | Precharge management system |
| CN104709091A (en) * | 2013-12-13 | 2015-06-17 | 北汽福田汽车股份有限公司 | Power-on method and power-off method of full electric vehicle |
| CN204425003U (en) * | 2015-03-24 | 2015-06-24 | 长城汽车股份有限公司 | A kind of pre-charge circuit and hybrid vehicle |
| CN106300484A (en) * | 2015-06-08 | 2017-01-04 | 深圳市沃特玛电池有限公司 | A kind of charging system of compatible alternating current-direct current input |
| CN105172608A (en) * | 2015-08-03 | 2015-12-23 | 中通客车控股股份有限公司 | Control circuit and method for power on and power off of electric automobile high-pressure system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583287A (en) * | 2018-04-28 | 2018-09-28 | 北京新能源汽车股份有限公司 | Electric automobile high-voltage power-on and power-off control method and device and electric automobile |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170926 |