CN204928171U - Idle generating device of subharmonic - Google Patents
Idle generating device of subharmonic Download PDFInfo
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- CN204928171U CN204928171U CN201520664218.7U CN201520664218U CN204928171U CN 204928171 U CN204928171 U CN 204928171U CN 201520664218 U CN201520664218 U CN 201520664218U CN 204928171 U CN204928171 U CN 204928171U
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model relates to a power grid technology field discloses an idle generating device of subharmonic, including the control unit and valves unit, wherein: the control unit for obtaining generating set's rotational speed deviation signal, and calculating according to this rotational speed deviation signal and restrain the required inferior harmonic current of subsynchronous oscillation, gain merit in proper order - idle decoupling zero and pulsewidth modulation based on dq transform pair grid voltage and required inferior harmonic current, signal driver after making uses simultaneously the valves unit, so that the inferior harmonic current that the valves unit sent is idlely, the valves unit is used for send time harmonic current under the control unit's the drive to the inferior harmonic current that will send pours into the electric wire netting into with idle form. The utility model discloses an independent control after active component among the electric power system and reactive component decoupling zero, is carried out respectively to the dq transform to it is idle to ensure that the subharmonic that sends is, has restrained subsynchronous oscillation under the idle mode of perseverance better.
Description
Technical field
The utility model relates to electric power network technique field, particularly, relates to a kind of subharmonic reactive generating device.
Background technology
Along with the continuous expansion of network system, super high voltage direct current electricity transmission and heavy-duty generator group demand are also in improve, for reducing line transmission loss, conventional controlled series compensation improves voltage on line side at present, although the great economic benefit brought, but bring new trouble also to the safe and stable operation of generating set, subsynchronous oscillation of electrical power system is one of wherein comparatively serious problem.
Propose the measure of many suppression generator sub-synchronous oscillations for this reason, adopt in prior art and more be: the bypass damping filter be made up of passive device and static block filter; Add the SVC device of power electronic device.But it is slow all to there is response speed in these technology, the shortcomings such as follow-up control difference, and it is limited in one's ability to produce subharmonic, fundamentally cannot solve Problems existing.There is the shortcomings such as response speed is slow, tracking performance is poor for prior art, therefore need to propose new solution.
Utility model content
The purpose of this utility model is to provide a kind of subharmonic reactive generating device, produces subharmonic current to suppress the object of sub-synchronous oscillation for realizing.
To achieve these goals, the utility model provides a kind of subharmonic reactive generating device, comprise control unit and valve terminal, wherein: described control unit, for obtaining the speed error signal of generating set, and the subharmonic current suppressed needed for sub-synchronous oscillation is calculated according to this speed error signal, carry out successively based on dq transfer pair line voltage and required subharmonic current again gaining merit-idle decoupling zero and pulse-width modulation, and drive described valve terminal with the signal after modulation, be idle with the subharmonic current making described valve terminal send; Described valve terminal, for sending subharmonic current under the driving of described control unit, and injects electrical network by the subharmonic current sent with idle form.
Preferably, also comprise the power supply unit of cabinet type structure, this power supply unit is used for providing corresponding working power for described control unit and described valve terminal, and this power supply unit comprises again: UPS module, for providing continual AC power; Power isolation module, connects described UPS module and low-voltage distribution module altogether, carries out rectification, and the power supply after rectification is supplied to low-voltage distribution module for the continual AC power provided UPS module; And described low-voltage distribution module, it connects described control unit and described valve terminal, for the power supply that shares out the work to described control unit and described valve terminal.
Preferably, described control unit is cabinet type structure, comprising: industrial computer, for realizing interface display and operation; System control module, itself and described industrial computer communication, for calculating the subharmonic current suppressed needed for sub-synchronous oscillation according to speed error signal; And device control module, itself and described industrial computer communication, and be positioned at the downstream of described system control module, for carrying out successively based on dq transfer pair line voltage and required subharmonic current gaining merit-idle decoupling zero and modulation, and drive valve terminal with the signal after modulation, be idle with the subharmonic current making described valve terminal send.
Preferably, described device control module comprises: phase-locked loop module, for carrying out tracking and phase-locked to line voltage; Voltage loop module, for the deviation signal of the DC voltage reference value and DC voltage value of feedback that calculate valve terminal, and carries out PI adjustment and phse conversion to this deviation signal, exports real component
two Park conversion modules, one of them is positioned at the downstream of described phase-locked loop 131 module, for carrying out dq conversion to line voltage, obtains the real component of line voltage
with
another, for carrying out dq conversion to required subharmonic current, obtains the real component of required subharmonic current
and idle component
meritorious-reactive current uneoupled control module, it is positioned at the downstream of described Park conversion module, for all real components obtained above and idle component are carried out decoupling zero, output voltage vector
park inverse transform module, its be positioned at described meritorious-downstream of reactive current uneoupled control module, for by voltage vector
conversion obtains three-phase modulations signal
with
and SPWM modulation module, it is positioned at the downstream of described Park inverse transform module, for three-phase modulations signal
with
carry out SPWM modulation, obtain corresponding PWM drive singal, to drive described valve terminal.
Preferably, described device control module also comprises the phase-shifting carrier wave module being positioned at described SPWM modulation module downstream, for carrying out phase-shifting carrier wave process to PWM drive singal.
Preferably, described valve terminal is the chain structure of corresponding three-phase three-wire system electrical network, and be often in series several IEGT phase modules.
Preferably, described IEGT phase module comprises: switching device IEGT1 and switching device IEGT2, switching device IEGT1 is parallel with sustained diode 1, switching device IEGT2 is parallel with sustained diode 2, switching device IEGT1 and switching device IEGT2 is cascaded, and middle link leads to output.
Preferably, described IEGT phase module also comprises snubber circuit, this snubber circuit comprises two inductance L 1 of connecting, L2 and resistance R, diode D3 and electric capacity C, diode D3 positive terminal is connected with inductance L 2, diode D3 negative pole end is connected with one end of resistance R, and the other end of resistance R is connected with inductance L 1; The negative pole end of diode D3 also connects one end of electric capacity C, and the electric capacity C other end is connected with power supply negative terminal.
Preferably, also comprise: heat-sink unit, for dispelling the heat to described valve terminal.
Preferably, described heat-sink unit adopts water-cooling system.
Pass through technique scheme, the beneficial effects of the utility model are: the utility model adopts dq conversion, after real component in electric power system and idle component decoupling zero, carry out independent control respectively, idle to guarantee that the subharmonic sent is, under the idle pattern of perseverance, inhibit sub-synchronous oscillation better.Comprehensive, subharmonic reactive generating device of the present utility model has the advantages such as fast response time, adjustable extent is extensive, capacity is large, can suppress the sub-synchronous oscillation phenomenon in electric power system well.
Other features and advantages of the utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of subharmonic reactive generating device in execution mode of the present utility model, and illustrates the connection of this subharmonic reactive generating device and electrical network simultaneously;
Fig. 2 is the structural representation of control unit in execution mode of the present utility model;
Fig. 3 is the structural representation of device control module in execution mode of the present utility model;
Fig. 4 is the structural representation of valve terminal in execution mode of the present utility model;
Fig. 5 is the structural representation of IEGT phase module in execution mode of the present utility model.
Description of reference numerals
1, subharmonic reactive generating device;
10, control unit; 20, valve terminal; 30, power supply unit; 40, heat-sink unit;
101, industrial computer; 102, system control module; 103, device control module;
1031, phase-locked loop module; 1032, Voltage loop module; 1033, Park conversion module; 1034, meritorious-reactive current uneoupled control module; 1035, Park inverse transform module; 1036, SPWM modulation module.
301, UPS module; 302, power isolation module; 303, low-voltage distribution module.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
As shown in Figure 1, in electric power system, generating set to electrical network transmission of electric energy, is the loss reducing transmission line by transformer and transmission line, and normal employing increases the conveying capacity that method that string mends improves transmission line at present.But this method increasing string benefit also may cause sub-synchronous oscillation problem, makes generating set run with the frequency of oscillation lower than synchronizing frequency, has a strong impact on the fail safe of electric power system, and therefore power plant employs a lot of device suppressing sub-synchronous oscillation.
The object of present embodiment is to suppress sub-synchronous oscillation by producing subharmonic current, give a kind of subharmonic reactive generating device 1, as shown in Figure 1, it is arranged between generating set and electrical network, comprise control unit 10 and valve terminal 20, wherein: described control unit 10, for obtaining the speed error signal of generating set, and determine to suppress the subharmonic current needed for sub-synchronous oscillation according to this speed error signal, carry out successively based on dq transfer pair line voltage and required subharmonic current again gaining merit-idle decoupling zero and pulse-width modulation, and drive described valve terminal with the signal after modulation, be idle with the subharmonic current making described valve terminal send, described valve terminal 20, for sending subharmonic current under the driving of described control unit, and injects electrical network by the subharmonic current sent with idle form.
As shown in Figure 2, described control unit is the control unit 10 of cabinet type structure, can comprise: industrial computer 101, for realizing interface display and operation; System control module 102, itself and described industrial computer 11 communication, for calculating the subharmonic current suppressed needed for sub-synchronous oscillation according to speed error signal; And device control module 103, itself and described industrial computer 101 communication, and be positioned at the downstream of described system control module, for carrying out successively based on dq transfer pair line voltage and required subharmonic current gaining merit-idle decoupling zero and modulation, and drive valve terminal with the signal after modulation, be idle with the subharmonic current making described valve terminal send.In addition, according to field condition, described control unit 10 also configurable switch, it coordinates described industrial computer to use, and makes the range of application of industrial computer wider.
Described system control module is complete operation logic, signal measurement, Systematical control (power factor compensation, suppression vibrational control) etc. mainly.Known in the field is that the rotation speed change of generating set and sub-synchronous oscillation are closely related, therefore calculating according to speed error signal suppresses the algorithm of the subharmonic current needed for sub-synchronous oscillation to have a lot in this area, generally adopt speed error signal to carry out mode filtering, extract the modal components that the subharmonic current of rear concern is relevant, again phase-locked, scale amplifying, phase shift and computing are carried out to this modal components, obtain amplitude and the phase place of required subharmonic current, again in conjunction with the torsional vibration frequency of generating set, calculate corresponding subharmonic current.
Described device control module 103 possesses dq uneoupled control function, and the structure of device control module described in present embodiment is preferably the structure shown in Fig. 3, and it comprises: phase-locked loop module 1031, for carrying out tracking and phase-locked to line voltage; Voltage loop module 1032, for the deviation signal of the DC voltage reference value and DC voltage value of feedback that calculate valve terminal, and carries out PI adjustment and phse conversion to this deviation signal, exports real component
two Park conversion modules 1033, one of them is positioned at the downstream of described phase-locked loop 131 module, for carrying out dq conversion to line voltage, obtains the real component of line voltage
with
another, for carrying out dq conversion to required subharmonic current, obtains the real component of required subharmonic current
and idle component
meritorious-reactive current uneoupled control module 1034, it is positioned at the downstream of described Park conversion module 1033, for all real components obtained above and idle component are carried out decoupling zero, output voltage vector
park inverse transform module 1035, its be positioned at described meritorious-downstream of reactive current uneoupled control module 1034, for by voltage vector
conversion obtains three-phase modulations signal
with
and SPWM modulation module 1036, it is positioned at the downstream of described Park inverse transform module 1035, for three-phase modulations signal
with
carry out SPWM modulation, obtain corresponding PWM drive singal, to drive described valve terminal.
With reference to figure 3, the functional realiey of device control module mainly comprises following several link:
(1) phase-locked loop (PLL)
Phase-locked loop is used for following the tracks of A, B, C phase system voltage
its fundamental phase θ can be obtained, and obtain sine value and the cosine value of system voltage phase place.
(2) Voltage loop
Calculate DC voltage reference value
with DC voltage value of feedback
deviation signal, this deviation signal through PI regulate and phse conversion after, output real component
(3) Park conversion
By required subharmonic current
through Park conversion, obtain
real component
and idle component
line voltage
pass through Park coordinate transform equally from abc coordinate system transformation to dq coordinate system, obtain
with
(4) current decoupled control
By, reactive current decoupling controller meritorious with the amount obtained after up conversion input, and in conjunction with corresponding phse conversion, output voltage vector
three-phase modulations signal is obtained through Park inverse transformation
with
modulation signal exports PWM drive singal through SPWM generator, makes novel subharmonic reacance generator export required reactive power.
The control unit of present embodiment have employed dq control strategy, after real component in system and idle component decoupling zero, carries out closed loop control respectively.Dq uneoupled control has the advantages such as tracking performance is good, steady-state error is little.
In addition, the control unit of the present embodiment additionally uses phase-shifting carrier wave technology, in the downstream of described SPWM modulation module, phase-shifting carrier wave module is set, for carrying out phase-shifting carrier wave to the PWM drive singal after the process of described SPWM modulation module, specifically comprise: move by multichannel carrier the control algolithm that certain angle generates PWM ripple on a timeline, N level power unit cascade needs N road triangular carrier.This phase-shifting carrier wave technology can realize the effect of higher switching frequency under lower devices switch frequency, by the raising equivalent switching frequency of cancelling out each other of switch subharmonic, instead of simply humorous wave direction high order is passed, thus there is good harmonic characterisitic, while raising installed capacity, efficiently reduce output harmonic wave, improve the Signal transmissions bandwidth of whole device.In addition, phase-shifting carrier wave technology also possesses the series of advantages such as the linearity is good, control performance is superior.
As shown in Figure 4, valve terminal 20 described in present embodiment is preferably the chain structure of corresponding three-phase three-wire system electrical network, and be often in series several IEGT phase modules, preferably, often by six IEGT phase module cascade compositions.In Fig. 4, valve terminal adopts star-like connected mode to be connected with electrical network by reactor, by the various high order characteristic harmonics in reactor filtering subharmonic reactive generating device.In addition, each IEGT phase module is parallel with electric capacity, and this electric capacity plays bypass protection function.Present embodiment utilizes subharmonic current to be added on idle axle, to guarantee that the subharmonic that device sends is idle, and can not affect the capacitance voltage of valve terminal.
Fig. 5 gives a kind of preferred structure of described IEGT phase module, it comprises: switching device IEGT1 and switching device IEGT2, switching device IEGT1 is parallel with sustained diode 1, switching device IEGT2 is parallel with sustained diode 2, switching device IEGT1 and switching device IEGT2 is cascaded, and middle link leads to output.
The phase module of IEGT described in present embodiment adopts closes installation, water-cooling technology, and meets the related request such as installation, heat radiation, electromagnetic compatibility, High-Voltage Insulation, modularized design of the power-phase module of IEGT.
In addition, described IEGT phase module also comprises snubber circuit, equally as shown in Figure 5, this snubber circuit comprises two inductance L 1 of connecting, L2 and resistance R, diode D3 and electric capacity C, diode D3 positive terminal is connected with inductance L 2, diode D3 negative pole end is connected with one end of resistance R, and the other end of resistance R is connected with inductance L 1; The negative pole end of diode D3 also connects one end of electric capacity C, and the electric capacity C other end is connected with power supply negative terminal.
In addition, as shown in Figure 1, the subharmonic reactive generating device of present embodiment also includes the power supply unit 30 of cabinet type structure, this power supply unit 30 is for providing corresponding working power for described control unit 10 and described valve terminal 20 etc., this power supply unit comprises again: UPS module 301, for providing continual AC power; Power isolation module 302, connects described UPS module 301 and low-voltage distribution module 303 altogether, carries out rectification, and the power supply after rectification is supplied to low-voltage distribution module 303 for the continual AC power provided UPS module 301; And described low-voltage distribution module 303, it connects described control unit and described valve terminal, for the power supply that shares out the work to described control unit and described valve terminal.
In present embodiment, power isolation module can adopt isolated from power cabinet, and 380V power conversion can be required power supply by it, and has isolation features.And described UPS module is also configured with battery, guarantees to provide power supply directly to valve terminal when civil power power-off, avoid device failure.Low-voltage distribution module described in present embodiment is also cabinet type structure, is mainly and supplies power with double circuit, and working power is three-phase and four-line 380VAC/50HZ, and adopt ATS automatic switchover system, output voltage is AC380V/50HZ and AC220/50HZ two kinds.Low-voltage distribution module Main Function is for the power consumption equipment of subharmonic generating means distributes AC power, and gather UPS fed power supplies, and distribute ups power, its AC load exported is mainly valve terminal, control unit and heat-sink unit etc.
Meanwhile, in order to dispel the heat to valve terminal 20, the subharmonic reactive generating device of present embodiment also comprises heat-sink unit 40, and it is for dispelling the heat to described valve terminal, to ensure the long-time steady operation of system.In present embodiment, described heat-sink unit is preferably water-cooling system.
In sum, subharmonic reactive generating device of the present utility model, can run on permanent idle pattern, to suppress the sub-synchronous oscillation of generating set, has the advantages such as fast response time, tracking performance be good.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned execution mode; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection range of the present utility model.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different execution mode of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a subharmonic reactive generating device, is characterized in that, comprises control unit and valve terminal, wherein:
Described control unit, for obtaining the speed error signal of generating set, and the subharmonic current suppressed needed for sub-synchronous oscillation is calculated according to this speed error signal, carry out successively based on dq transfer pair line voltage and required subharmonic current again gaining merit-idle decoupling zero and pulse-width modulation, and drive described valve terminal with the signal after modulation, be idle with the subharmonic current making described valve terminal send;
Described valve terminal, for sending subharmonic current under the driving of described control unit, and injects electrical network by the subharmonic current sent with idle form.
2. subharmonic reactive generating device according to claim 1, is characterized in that, also comprises the power supply unit of cabinet type structure, and this power supply unit is used for providing corresponding working power for described control unit and described valve terminal, and this power supply unit comprises again:
UPS module, for providing continual AC power;
Power isolation module, connects described UPS module and low-voltage distribution module altogether, carries out rectification, and the power supply after rectification is supplied to low-voltage distribution module for the continual AC power provided UPS module; And
Described low-voltage distribution module, it connects described control unit and described valve terminal, for the power supply that shares out the work to described control unit and described valve terminal.
3. subharmonic reactive generating device according to claim 1, is characterized in that, described control unit is cabinet type structure, comprising:
Industrial computer, for realizing interface display and operation;
System control module, itself and described industrial computer communication, for calculating the subharmonic current suppressed needed for sub-synchronous oscillation according to speed error signal; And
Device control module, itself and described industrial computer communication, and be positioned at the downstream of described system control module, for carrying out successively based on dq transfer pair line voltage and required subharmonic current gaining merit-idle decoupling zero and modulation, and drive valve terminal with the signal after modulation, be idle with the subharmonic current making described valve terminal send.
4. subharmonic reactive generating device according to claim 3, is characterized in that, described device control module comprises:
Phase-locked loop module, for carrying out tracking and phase-locked to line voltage;
Voltage loop module, for the deviation signal of the DC voltage reference value and DC voltage value of feedback that calculate valve terminal, and carries out PI adjustment and phse conversion to this deviation signal, exports real component
Two Park conversion modules, one of them is positioned at the downstream of described phase-locked loop 131 module, for carrying out dq conversion to line voltage, obtains the real component of line voltage
with
another, for carrying out dq conversion to required subharmonic current, obtains the real component of required subharmonic current
and idle component
Meritorious-reactive current uneoupled control module, it is positioned at the downstream of described Park conversion module, for all real components obtained above and idle component are carried out decoupling zero, output voltage vector
Park inverse transform module, its be positioned at described meritorious-downstream of reactive current uneoupled control module, for by voltage vector
conversion obtains three-phase modulations signal
with
and
SPWM modulation module, it is positioned at the downstream of described Park inverse transform module, for three-phase modulations signal
with
carry out SPWM modulation, obtain corresponding PWM drive singal, to drive described valve terminal.
5. subharmonic reactive generating device according to claim 4, is characterized in that, described device control module also comprises the phase-shifting carrier wave module being positioned at described SPWM modulation module downstream, for carrying out phase-shifting carrier wave process to PWM drive singal.
6. subharmonic reactive generating device according to claim 1, is characterized in that, described valve terminal is the chain structure of corresponding three-phase three-wire system electrical network, and be often in series several IEGT phase modules.
7. subharmonic reactive generating device according to claim 6, it is characterized in that, described IEGT phase module comprises: switching device IEGT1 and switching device IEGT2, switching device IEGT1 is parallel with sustained diode 1, switching device IEGT2 is parallel with sustained diode 2, switching device IEGT1 and switching device IEGT2 is cascaded, and middle link leads to output.
8. subharmonic reactive generating device according to claim 7, it is characterized in that, described IEGT phase module also comprises snubber circuit, this snubber circuit comprises two inductance L 1 of connecting, L2 and resistance R, diode D3 and electric capacity C, diode D3 positive terminal is connected with inductance L 2, diode D3 negative pole end is connected with one end of resistance R, and the other end of resistance R is connected with inductance L 1; The negative pole end of diode D3 also connects one end of electric capacity C, and the electric capacity C other end is connected with power supply negative terminal.
9. subharmonic reactive generating device according to any one of claim 1 to 8, is characterized in that, also comprise:
Heat-sink unit, for dispelling the heat to described valve terminal.
10. subharmonic reactive generating device according to claim 9, is characterized in that, described heat-sink unit adopts water-cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520664218.7U CN204928171U (en) | 2015-08-28 | 2015-08-28 | Idle generating device of subharmonic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520664218.7U CN204928171U (en) | 2015-08-28 | 2015-08-28 | Idle generating device of subharmonic |
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| Publication Number | Publication Date |
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| CN204928171U true CN204928171U (en) | 2015-12-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071409A (en) * | 2015-08-28 | 2015-11-18 | 中国神华能源股份有限公司 | Subharmonic reactive power generator |
| CN111146990A (en) * | 2020-02-18 | 2020-05-12 | 全球能源互联网研究院有限公司 | Generator excitation control method and device for inhibiting subsynchronous oscillation |
-
2015
- 2015-08-28 CN CN201520664218.7U patent/CN204928171U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071409A (en) * | 2015-08-28 | 2015-11-18 | 中国神华能源股份有限公司 | Subharmonic reactive power generator |
| CN105071409B (en) * | 2015-08-28 | 2017-10-17 | 中国神华能源股份有限公司 | A kind of subharmonic reactive generating device |
| CN111146990A (en) * | 2020-02-18 | 2020-05-12 | 全球能源互联网研究院有限公司 | Generator excitation control method and device for inhibiting subsynchronous oscillation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Co-patentee after: BEIJING GUOHUA POWER Co.,Ltd. Patentee after: China Shenhua Energy Co.,Ltd. Co-patentee after: INNER MONGOLIA GUOHUA HULUN BUIR POWER GENERATION Co.,Ltd. Co-patentee after: MONTNETS RONGXIN TECHNOLOGY GROUP CO.,LTD. Co-patentee after: SHANGHAI JIAO TONG University Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Co-patentee before: BEIJING GUOHUA POWER Co.,Ltd. Patentee before: China Shenhua Energy Co.,Ltd. Co-patentee before: INNER MONGOLIA GUOHUA HULUN BUIR POWER GENERATION Co.,Ltd. Co-patentee before: RONGXIN POWER ELECTRONIC Co.,Ltd. Co-patentee before: SHANGHAI JIAO TONG University |
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Effective date of registration: 20190423 Address after: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Co-patentee after: BEIJING GUOHUA POWER Co.,Ltd. Patentee after: China Shenhua Energy Co.,Ltd. Co-patentee after: INNER MONGOLIA GUOHUA HULUN BUIR POWER GENERATION Co.,Ltd. Co-patentee after: RONGXIN HUIKO ELECTRIC TECHNOLOGY Co.,Ltd. Co-patentee after: SHANGHAI JIAO TONG University Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Co-patentee before: BEIJING GUOHUA POWER Co.,Ltd. Patentee before: China Shenhua Energy Co.,Ltd. Co-patentee before: INNER MONGOLIA GUOHUA HULUN BUIR POWER GENERATION Co.,Ltd. Co-patentee before: MONTNETS RONGXIN TECHNOLOGY GROUP CO.,LTD. Co-patentee before: SHANGHAI JIAO TONG University |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: BEIJING GUOHUA POWER Co.,Ltd. Patentee after: INNER MONGOLIA GUOHUA HULUN BUIR POWER GENERATION Co.,Ltd. Patentee after: Rongxin Huike Electric Co.,Ltd. Patentee after: SHANGHAI JIAO TONG University Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: BEIJING GUOHUA POWER Co.,Ltd. Patentee before: INNER MONGOLIA GUOHUA HULUN BUIR POWER GENERATION Co.,Ltd. Patentee before: RONGXIN HUIKO ELECTRIC TECHNOLOGY Co.,Ltd. Patentee before: SHANGHAI JIAO TONG University |
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| CP01 | Change in the name or title of a patent holder |