CN103259278A - Low voltage line voltage regulating device - Google Patents
Low voltage line voltage regulating device Download PDFInfo
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- CN103259278A CN103259278A CN2013101707674A CN201310170767A CN103259278A CN 103259278 A CN103259278 A CN 103259278A CN 2013101707674 A CN2013101707674 A CN 2013101707674A CN 201310170767 A CN201310170767 A CN 201310170767A CN 103259278 A CN103259278 A CN 103259278A
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Abstract
The invention discloses a low voltage line voltage regulating device comprising a DSP chip, an AC/DC rectifying inverter circuit, three DC/DC conversion circuits, storage batteries, a first photoelectric coupler and three second photoelectric couplers, wherein the AC end of the AC/DC rectifying inverter circuit is connected with a power grid, the DC end of the AC/DC rectifying inverter circuit is respectively connected with the three DC/DC conversion circuits, the three DC/DC conversion circuits are connected with the storage batteries respectively, the DSP chip is connected with the AC/DC rectifying inverter circuit through the first photoelectric coupler, the three DC/DC conversion circuits are in one-to-one correspondence with the three second photoelectric couplers, the DSP chip is connected with the DC/DC conversion circuit corresponding to the DSP chip through one second photoelectric coupler, and the DSP chip is connected with the storage batteries and the power grid. The low voltage line voltage regulating device fundamentally solves the line problem caused by short-term load increase of a line.
Description
Technical field
The present invention relates to the reactive power compensation field, relate in particular to a kind of low-voltage circuit regulator.
Background technology
Up to now, because electric power system lacks effective jumbo storage means, generating, transmission of electricity, distribution and electricity consumption must be finished simultaneously, and this just requires system to be in all the time in the dynamic poised state, and instantaneous imbalance just may cause safety problem.For reaching above-mentioned purpose, electrical network must have enough reserve capacitys and deal with annual only a few hours even shorter peak load, has increased the installation and operation expense of equipment greatly.And the main cause of current circuit low-voltage is also to be because short time interval load increase causes voltage to fall.So, can not deal with problems by installing traditional capacitor additional.And based on the novel reactive power compensator SVG of VSC, its DC side is electric capacity, the energy of storage is very limited, can only operate in two quadrants, both sent reactive power and absorbing reactive power, and active power that can not be a large amount of with systems exchange, as adopt energy-storage units in DC side, just can in four quadrants, move, can send or absorb active power and reactive power simultaneously.
Therefore, a kind of low-voltage circuit regulator based on energy storage technology of development is the problem that the applicant is devoted to solve.
Summary of the invention
The object of the present invention is to provide a kind of low-voltage circuit regulator, be installed on line end, carrying out peak load shifting by energy-storage units, increase the circuit question that causes owing to short-term load (duty) thereby fundamentally solve circuit.Advantages such as simultaneously, have integrated design, volume is little, takes up an area of to lack, and installing/dismounting is simple are applicable to interim solution low-voltage problem.
The technical scheme that realizes above-mentioned purpose is:
A kind of low-voltage circuit regulator, outside electric power network, described low-voltage circuit regulator comprises the DSP(Digital Signal Processing) chip, AC/DC(ac/dc) rectification inverter circuit, three DC/DC(DC-DCs) translation circuit, batteries, first photoelectrical coupler and three second photoelectrical couplers, wherein:
The AC end of described AC/DC rectification inverter circuit connects described electrical network, and the DC end connects described three DC/DC translation circuits respectively;
Described three DC/DC translation circuits connect described batteries respectively;
Described dsp chip connects described AC/DC rectification inverter circuit by described first photoelectrical coupler;
Described three DC/DC translation circuits are corresponding one by one with three second photoelectrical couplers, and described dsp chip connects corresponding with it DC/DC translation circuit by second photoelectrical coupler respectively;
Described dsp chip connects described batteries;
Described dsp chip connects described electrical network, sampling three phase network voltage and three phase network electric current.
Above-mentioned low-voltage circuit regulator, wherein, described AC/DC rectification inverter circuit comprises first inductance, second inductance, the 3rd inductance, an IGBT(insulated gate bipolar transistor), the 2nd IGBT, the 3rd IGBT, the 4th IGBT, the 5th IGBT, the 6th IGBT and first electric capacity, wherein:
A described IGBT, the 3rd IGBT link to each other with the 5th IGBT collector electrode separately, as first output of described AC/DC rectification inverter circuit;
Described the 2nd IGBT, the 4th IGBT link to each other with the 6th IGBT emitter separately, as second output of described AC/DC rectification inverter circuit;
The emitter of a described IGBT links to each other with the collector electrode of described the 2nd IGBT, and this end that joins connects described electrical network by described first inductance;
The emitter of described the 3rd IGBT links to each other with the collector electrode of described the 4th IGBT, and this end that joins connects described electrical network by described second inductance;
The emitter of described the 5th IGBT links to each other with the collector electrode of described the 6th IGBT, and this end that joins connects described electrical network by described the 3rd inductance;
Described first electric capacity is connected between first output and second output of described AC/DC rectification inverter circuit;
A described IGBT, the 2nd IGBT, the 3rd IGBT, the 4th IGBT, the 5th IGBT and the 6th IGBT base stage separately all are connected described dsp chip by described first photoelectrical coupler.
Above-mentioned low-voltage circuit regulator, wherein, described each DC/DC translation circuit comprises first contactor, second contactor, second electric capacity, the 3rd electric capacity, the 4th inductance, the 5th inductance, the 7th IGBT, the 8th IGBT, the 9th IGBT, the tenth IGBT, the 11 IGBT, the 12 IGBT, the 13 IGBT, the 14 IGBT and transformer, wherein:
Described the 7th IGBT and the 9th IGBT collector electrode separately are connected an end of described the 4th inductance respectively, and the other end of the 4th inductance connects first output of described AC/DC rectification inverter circuit as the first input end of described DC/DC translation circuit;
Described the 8th IGBT links to each other with the tenth IGBT emitter separately, as second input of described DC/DC translation circuit, connects second output of described AC/DC rectification inverter circuit;
Described the 11 IGBT and the 13 IGBT collector electrode separately are connected an end of described the 5th inductance respectively, and the other end of the 5th inductance connects described batteries as first output of described DC/DC translation circuit;
Described the 12 IGBT links to each other with the 14 IGBT emitter separately, and second output as described DC/DC translation circuit connects described batteries;
The emitter of described the 7th IGBT links to each other with the collector electrode of described the 8th IGBT, and this end that joins connects first end of the primary coil of described transformer;
The emitter of described the 9th IGBT links to each other with the collector electrode of described the tenth IGBT, and this end that joins connects second end of the primary coil of described transformer;
The emitter of described the 11 IGBT links to each other with the collector electrode of described the 12 IGBT, and this end that joins connects first end of the secondary coil of described transformer;
The emitter of described the 13 IGBT links to each other with the collector electrode of described the 14 IGBT, and this end that joins connects second end of the secondary coil of described transformer;
Described second electric capacity is connected between the first input end and second input of described DC/DC translation circuit;
Described the 3rd electric capacity is connected between first output and second output of described DC/DC translation circuit;
Described the 7th IGBT the 8th IGBT, the 9th IGBT, the tenth IGBT, the 11 IGBT, the 12 IGBT, the 13 IGBT all are connected described dsp chip by second photoelectrical coupler corresponding with described DC/DC translation circuit with the 14 IGBT base stage separately;
Described first contactor comprises normally opened contact and coil, and its normally opened contact is in parallel with the 4th inductance, and its coil connects described dsp chip by second photoelectrical coupler corresponding with described DC/DC translation circuit;
Described second contactor bag normally opened contact and the coil, its normally opened contact is in parallel with the 5th inductance, and its coil connects described dsp chip by second photoelectrical coupler corresponding with described DC/DC translation circuit.
Above-mentioned low-voltage circuit regulator, wherein, described low-voltage circuit regulator also comprises a man-machine interface that links to each other with described dsp chip.
Above-mentioned low-voltage circuit regulator, wherein, described low-voltage circuit regulator also comprises a touch-screen that links to each other with described dsp chip.
Above-mentioned low-voltage circuit regulator, wherein, described low-voltage circuit regulator also comprises an alarm that links to each other with described dsp chip.
The invention has the beneficial effects as follows: the present invention is based on energy storage technology, be installed on line end, control AC/DC circuit and DC/DC circuit by dsp chip, and carry out peak load shifting by energy-storage units, increase the circuit question that causes owing to short-term load (duty) thereby fundamentally solve circuit.Simultaneously, the present invention is the integrated design, and volume is little, takes up an area of fewly, and installing/dismounting is simple, has higher flexibility and better economy, can solve the short time interval load and increase and the problem that causes voltage to fall, is applicable to interim solution low-voltage hot issue.
Description of drawings
Fig. 1 is the structural representation of low-voltage circuit regulator of the present invention;
Fig. 2 is the circuit diagram of AC/DC rectification inverter circuit of the present invention;
Fig. 3 is the circuit diagram of DC/DC translation circuit of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
See also Fig. 1, low-voltage circuit regulator of the present invention, outside electric power network (100), described low-voltage circuit regulator comprises AC/DC rectification inverter circuit 1, three DC/DC translation circuits 2, batteries 3, dsp chip 4, first photoelectrical coupler 5 and three second photoelectrical couplers 6, wherein:
The AC end of AC/DC rectification inverter circuit 1 connects electrical network 100, and the DC end connects three DC/DC translation circuits 2 respectively, is used for the conversion between realization alternating current and the direct current;
Three DC/DC translation circuits 2 connect batteries 3 respectively, are used for direct current is defeated by batteries 3 storages, perhaps electric energy stored in the batteries 3 are passed to the DC end of AC/DC rectification inverter circuit 1;
Three DC/DC translation circuits 2 are corresponding one by one with three second photoelectrical couplers 6, and dsp chip 4 connects corresponding with it DC/DC translation circuit 2 by second photoelectrical coupler 5 respectively;
In the present embodiment, the concrete structure of AC/DC rectification inverter circuit 1 as shown in Figure 2, comprise first inductance L 11, second inductance L 12, the 3rd inductance L 13, an IGBT Q11, the 2nd IGBT Q12, the 3rd IGBT Q13, the 4th IGBT Q14, the 5th IGBT Q15, the 6th IGBT Q16 and first capacitor C 11, wherein:
The one IGBT Q11, the 3rd IGBT Q13 link to each other with the 5th IGBT Q15 collector electrode separately, this end first output as AC/DC rectification inverter circuit 1 that links to each other;
The 2nd IGBT Q12, the 4th IGBT Q14 link to each other with the 6th IGBT Q16 emitter separately, this end second output as AC/DC rectification inverter circuit 1 that links to each other;
The emitter of the one IGBT Q11 links to each other with the collector electrode of the 2nd IGBT Q12, and this end that joins connects electrical network 100 by first inductance L 11, namely connects the phase in the three-phase circuit;
The emitter of the 3rd IGBT Q13 links to each other with the collector electrode of the 4th IGBT Q14, and this end that joins connects electrical network 100 by second inductance L 12, namely connects the phase in the three-phase circuit;
The emitter of the 5th IGBT Q15 links to each other with the collector electrode of the 6th IGBT Q16, and this end that joins connects electrical network 100 by the 3rd inductance L 13, namely connects the phase in the three-phase circuit;
First capacitor C 11 is connected between first output and second output of AC/DC rectification inverter circuit 1;
The one IGBT Q11, the 2nd IGBT Q12, the 3rd IGBT Q13, the 4th IGBT Q14, the 5th IGBT Q15 and the 6th IGBT Q16 base stage separately all are connected dsp chip 4 by first photoelectrical coupler 5, accept the control of dsp chip 4.
In the present embodiment, the concrete structure of each DC/DC translation circuit 2 as shown in Figure 3, comprise the first contactor KM1, the second contactor KM2, second capacitor C 21, the 3rd capacitor C 22, the 4th inductance L 21, the 5th inductance L 22, the 7th IGBT Q21, the 8th IGBT Q22, the 9th IGBT Q23, the tenth IGBT Q24, the 11 IGBT Q25, the 12 IGBT Q26, the 13 IGBT Q27, the 14 IGBT Q28 and transformer T, wherein:
The 7th IGBT Q21 and the 9th IGBT Q23 collector electrode separately are connected an end of the 4th inductance L 21 respectively, and the other end of the 4th inductance L 21 connects first output of AC/DC rectification inverter circuit 1 as the first input end of DC/DC translation circuit 2;
The 8th IGBT Q22 links to each other with the tenth IGBT Q24 emitter separately, as second input of DC/DC translation circuit 2, connects second output of AC/DC rectification inverter circuit 1;
The 11 IGBT Q25 and the 13 IGBT Q27 collector electrode separately are connected an end of the 5th inductance L 22 respectively, and the other end of the 5th inductance L 22 connects batteries 3 as first output of DC/DC translation circuit 2;
The 12 IGBT Q26 links to each other with the 14 IGBT Q28 emitter separately, as second output of DC/DC translation circuit 2, connects batteries 3;
The emitter of the 7th IGBT Q21 links to each other with the collector electrode of the 8th IGBT Q22, and this end that joins connects first end of the primary coil of transformer T;
The emitter of the 9th IGBT Q23 links to each other with the collector electrode of the tenth IGBT Q24, and this end that joins connects second end of the primary coil of transformer T;
The emitter of the 11 IGBT Q25 links to each other with the collector electrode of the 12 IGBT Q26, and this end that joins connects first end of the secondary coil of transformer T;
The emitter of the 13 IGBT Q27 links to each other with the collector electrode of the 14 IGBT Q28, and this end that joins connects second end of the secondary coil of transformer T;
Second capacitor C 21 is connected between the first input end and second input of DC/DC translation circuit 2;
The 3rd capacitor C 22 is connected between first output and second output of DC/DC translation circuit 2;
The 7th IGBT Q21, the 8th IGBT Q22, the 9th IGBT Q23, the tenth IGBT Q24, the 11 IGBT Q25, the 12 IGBT Q26, the 13 IGBT Q27 and the 14 IGBT Q28 base stage separately all are connected dsp chip 4 by second photoelectrical coupler 6 corresponding with DC/DC translation circuit 2;
The first contactor KM1 comprises normally opened contact and coil, and its normally opened contact is in parallel with the 4th inductance L 21, and its coil connects dsp chips 4 by second photoelectrical coupler 6 corresponding with DC/DC translation circuit 2;
Second contactor KM2 bag normally opened contact and coil, its normally opened contact is in parallel with the 5th inductance L 22, and its coil is by the second photoelectrical coupler 6 connection dsp chips 4 corresponding with DC/DC translation circuit 2.
When charged state, the D.C. contactor of net side (the first contactor KM1) is with the 4th inductance L 21 short circuits, the D.C. contactor of battery side (the second contactor KM2) is opened, and the 5th inductance L 22 and the 3rd capacitor C 22 constitute LC low-pass filtering branch road, filtering high-frequency harmonic;
When the energy content of battery needed feedback grid 100, the D.C. contactor of net side (the first contactor KM1) was opened, and the 4th inductance L 21 and second capacitor C 21 constitute the LC filter branch, leach high-frequency harmonic.The D.C. contactor of battery side (the second contactor KM2) is opened; The DC end charging that DC/DC translation circuit 2 is given AC/DC rectification inverter circuit 1 after with energy content of battery conversion, AC/DC rectification inverter circuit 1 feeds back to electrical network again with energy.
In the present embodiment, low-voltage circuit regulator of the present invention also comprises man-machine interface 7, touch-screen 8 and the alarm 9 that is connected respectively with dsp chip 4, and man-machine interface 7 is used for connecting computer, carries out further analyzing and processing; Touch-screen 8 is used for man-machine interaction; Alarm 9 is used for reporting to the police, and namely when going wrong (for example batteries 3 temperature are too high), accepts dsp chip 4 controls, thereby gives the alarm.
In the present embodiment, it is TMS320F28335 that dsp chip 4 is selected model for use.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (6)
1. low-voltage circuit regulator, outside electric power network (100), it is characterized in that, described low-voltage circuit regulator comprises dsp chip (4), AC/DC rectification inverter circuit (1), three DC/DC translation circuits (2), batteries (3), first photoelectrical coupler (5) and three second photoelectrical couplers (6), wherein:
The AC end of described AC/DC rectification inverter circuit (1) connects described electrical network (100), and the DC end connects described three DC/DC translation circuits (2) respectively;
Described three DC/DC translation circuits (2) connect described batteries (3) respectively;
Described dsp chip (4) connects described AC/DC rectification inverter circuit (1) by described first photoelectrical coupler (5);
Described three DC/DC translation circuits (2) are corresponding one by one with three second photoelectrical couplers (6), and described dsp chip (4) connects corresponding with it DC/DC translation circuit (2) by second photoelectrical coupler (5) respectively;
Described dsp chip (4) connects described batteries (3);
Described dsp chip (4) connects described electrical network (100), sampling three phase network voltage and three phase network electric current.
2. low-voltage circuit regulator according to claim 1, it is characterized in that, described AC/DC rectification inverter circuit (1) comprises first inductance (L11), second inductance (L12), the 3rd inductance (L13), an IGBT(Q11), the 2nd IGBT(Q12), the 3rd IGBT(Q13), the 4th IGBT(Q14), the 5th IGBT(Q15), the 6th IGBT(Q16) and first electric capacity (C11), wherein:
A described IGBT(Q11), the 3rd IGBT(Q13) with the 5th IGBT(Q15) separately collector electrode links to each other, as first output of described AC/DC rectification inverter circuit (1);
Described the 2nd IGBT(Q12), the 4th IGBT(Q14) with the 6th IGBT(Q16) separately emitter links to each other, as second output of described AC/DC rectification inverter circuit (1);
A described IGBT(Q11) emitter and described the 2nd IGBT(Q12) collector electrode link to each other, this join the end connect described electrical network (100) by described first inductance (L11);
Described the 3rd IGBT(Q13) emitter and described the 4th IGBT(Q14) collector electrode link to each other, this join the end connect described electrical network (100) by described second inductance (L12);
Described the 5th IGBT(Q15) emitter and described the 6th IGBT(Q16) collector electrode link to each other, this join the end connect described electrical network (100) by described the 3rd inductance (L13);
Described first electric capacity (C11) is connected between first output and second output of described AC/DC rectification inverter circuit (1);
A described IGBT(Q11), the 5th IGBT(Q15 the 4th IGBT(Q14 the 3rd IGBT(Q13 the 2nd IGBT(Q12)))) with the 6th IGBT(Q16) separately base stage all is connected described dsp chip (4) by described first photoelectrical coupler (5).
3. low-voltage circuit regulator according to claim 2, it is characterized in that, described each DC/DC translation circuit (2) comprises first contactor (KM1), second contactor (KM2), second electric capacity (C21), the 3rd electric capacity (C22), the 4th inductance (L21), the 5th inductance (L22), the 7th IGBT(Q21), the 8th IGBT(Q22), the 9th IGBT(Q23), the tenth IGBT(Q24), the 11 IGBT(Q25), the 12 IGBT(Q26), the 13 IGBT(Q27), the 14 IGBT(Q28) and transformer (T), wherein:
Described the 7th IGBT(Q21) with the 9th IGBT(Q23) collector electrode separately is connected an end of described the 4th inductance (L21) respectively, the other end of the 4th inductance (L21) connects first output of described AC/DC rectification inverter circuit (1) as the first input end of described DC/DC translation circuit (2);
Described the 8th IGBT(Q22) with the tenth IGBT(Q24) separately emitter links to each other, and as second input of described DC/DC translation circuit (2), connects second output of described AC/DC rectification inverter circuit (1);
Described the 11 IGBT(Q25) with the 13 IGBT(Q27) collector electrode separately is connected an end of described the 5th inductance (L22) respectively, the other end of the 5th inductance (L22) connects described batteries (3) as first output of described DC/DC translation circuit (2);
Described the 12 IGBT(Q26) with the 14 IGBT(Q28) separately emitter links to each other, and as second output of described DC/DC translation circuit (2), connects described batteries (3);
Described the 7th IGBT(Q21) emitter and described the 8th IGBT(Q22) collector electrode link to each other, this end that joins connects first end of the primary coil of described transformer (T);
Described the 9th IGBT(Q23) emitter and described the tenth IGBT(Q24) collector electrode link to each other, this end that joins connects second end of the primary coil of described transformer (T);
Described the 11 IGBT(Q25) emitter and described the 12 IGBT(Q26) collector electrode link to each other, this end that joins connects first end of the secondary coil of described transformer (T);
Described the 13 IGBT(Q27) emitter and described the 14 IGBT(Q28) collector electrode link to each other, this end that joins connects second end of the secondary coil of described transformer (T);
Described second electric capacity (C21) is connected between the first input end and second input of described DC/DC translation circuit (2);
Described the 3rd electric capacity (C22) is connected between first output and second output of described DC/DC translation circuit (2);
Described the 7th IGBT(Q21), the 13 IGBT(Q27 the 12 IGBT(Q26 the 11 IGBT(Q25 the tenth IGBT(Q24 the 9th IGBT(Q23 the 8th IGBT(Q22)))))) with the 14 IGBT(Q28) separately base stage all is connected described dsp chip (4) by second photoelectrical coupler (6) corresponding with described DC/DC translation circuit (2);
Described first contactor (KM1) comprises normally opened contact and coil, and its normally opened contact is in parallel with the 4th inductance (L21), and its coil connects described dsp chip (4) by second photoelectrical coupler (6) corresponding with described DC/DC translation circuit (2);
Described second contactor (KM2) bag normally opened contact and coil, its normally opened contact is in parallel with the 5th inductance (L22), and its coil connects described dsp chip (4) by second photoelectrical coupler (6) corresponding with described DC/DC translation circuit (2).
4. according to claim 1 or 2 or 3 described low-voltage circuit regulators, it is characterized in that described low-voltage circuit regulator also comprises a man-machine interface (7) that links to each other with described dsp chip (4).
5. according to claim 1 or 2 or 3 described low-voltage circuit regulators, it is characterized in that described low-voltage circuit regulator also comprises a touch-screen (8) that links to each other with described dsp chip (4).
6. according to claim 1 or 2 or 3 described low-voltage circuit regulators, it is characterized in that described low-voltage circuit regulator also comprises an alarm (9) that links to each other with described dsp chip (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170767.4A CN103259278B (en) | 2013-05-10 | 2013-05-10 | Low voltage line voltage regulating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170767.4A CN103259278B (en) | 2013-05-10 | 2013-05-10 | Low voltage line voltage regulating device |
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| CN103259278A true CN103259278A (en) | 2013-08-21 |
| CN103259278B CN103259278B (en) | 2014-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571813A (en) * | 2019-09-12 | 2019-12-13 | 国网湖南省电力有限公司 | user low-voltage management method and device based on energy storage regulation |
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| CN203289115U (en) * | 2013-05-10 | 2013-11-13 | 国家电网公司 | Voltage regulation device for low-voltage circuit |
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| US20060152085A1 (en) * | 2004-10-20 | 2006-07-13 | Fred Flett | Power system method and apparatus |
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| CN102156267A (en) * | 2011-01-18 | 2011-08-17 | 东南大学 | Experimental device for high-power photovoltaic grid-connected inverter |
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| CN110571813A (en) * | 2019-09-12 | 2019-12-13 | 国网湖南省电力有限公司 | user low-voltage management method and device based on energy storage regulation |
| CN110571813B (en) * | 2019-09-12 | 2021-09-21 | 国网湖南省电力有限公司 | User low-voltage management method and device based on energy storage regulation |
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| CN103259278B (en) | 2014-11-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yao Jianxin Inventor after: Sun Yuhui Inventor after: Yao Juanyang Inventor after: Zhu Jiong Inventor after: Jin Xun Inventor after: Fu Wei Inventor after: Gu Li Inventor after: Ji Jian Inventor after: Xu Kai Inventor after: Ma Liwei Inventor after: He Dieqi Inventor before: Yao Jianxin Inventor before: Sun Yuhui Inventor before: Zhu Jiong Inventor before: Jin Xun Inventor before: Fu Wei Inventor before: Gu Li Inventor before: Ji Jian Inventor before: Xu Kai Inventor before: Ma Liwei Inventor before: He Dieqi |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YAO JIANXIN ZHU JIONG JIN XUN FU WEI GU LI QU JIAN XU KAI MA LIWEI HE YIQISUN YUHUI TO: YAO JIANXIN ZHU JIONG JIN XUN FU WEI GU LI QU JIAN XU KAI MA LIWEI HE YIQI SUN YUHUI YAO JUNYANG |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |