CN201408994Y - High-power power quality management control system - Google Patents
High-power power quality management control system Download PDFInfo
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- CN201408994Y CN201408994Y CN200920107571XU CN200920107571U CN201408994Y CN 201408994 Y CN201408994 Y CN 201408994Y CN 200920107571X U CN200920107571X U CN 200920107571XU CN 200920107571 U CN200920107571 U CN 200920107571U CN 201408994 Y CN201408994 Y CN 201408994Y
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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
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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
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The utility model provides a high-power power quality management control system which comprises a first breaker, a transformer, at least one active power filter and at least one reactive compensationdevice, wherein the first breaker is connected with a power grid; the transformer is connected with the first breaker; the active power filter is connected with the transformer, outputs a backward output harmonic current to the transformer, and sends the current back to the power grid by the first breaker, and the active power filter is also connected with a supply circuit of the power grid by a first current transformer and detects a harmonic current of the supply circuit; and the reactive compensation device is connected with the first breaker and connected into the power grid by the first breaker, and the reactive compensation device is also connected with the supply circuit of the power grid by a second current transformer, and detects a reactive current of the supply circuit; and thereactive compensation device is connected with the active power filter so as to receive a signal from the active power filter. The system firstly runs the active power filter to filtering the harmonicwaves, and then uses the reactive compensation device to compensate the idle work, and leads the running of the parts connected with the reactive power compenstion to be more stable.
Description
Technical field
The utility model relates to a kind of quality of power supply management control system, particularly relates to the high-power electric energy quality management control system of a kind of high-power harmonic wave inhibition and reactive power compensation.
Background technology
Oil is as the important energy source of national economic development, in recent years, along with rapid development of national economy, oil drilling exploitation equipment has also obtained fast development, especially no matter electric drive rig control system is also correspondingly quantitatively or on technical equipment to be improved and to develop.Yet; electric drive rig control system major part is to adopt the high power DC governing system (1500A-2400A/600V-690V) or the frequency conversion speed-adjusting system (500KW-1200KW/600V-690V) of large-sized diesel generating set (1000KW-2400KW/600V-690V) power supply at present; the application of these two kinds of speed-adjusting and control systems has produced the quality of power supply of diesel-electric set electric supply and has seriously influenced; especially when petroleum drilling operation; make the voltage current waveform of the decision power supply quality of power supply produce severe distortion (being that the voltage current waveform distortion factor improves and the electric power system reactive power increases) under the operating mode that load variations is frequent and amplitude is big; and the voltage waveform in thyristor (SCR) dc variable-speed control system when operation also serious commutation notch can occur; promptly produce a large amount of harmonic waves; make 5 times and 7 subharmonic content severe overweights (5 subharmonic current containing ratio HRI5=35--45%; 7 subharmonic current containing ratio HRI7=13--15%; 5 subharmonic voltage containing ratio HRU5=15--25%); directly have influence on the reliability service of the on-the-spot institute of oil drilling electrical installation, the increase of frequent shutdown and useless power has also caused the increase of production cost.
At present, great majority are not also taken measures with minimizing is idle to suppressing harmonic wave in the electric driving control system of oil-well rig use.Have minority to take the measure of thuristor throw-in and throw-off LC passive filter, but the effect and the reliability of operation are relatively poor.
This shows that the electric driving control system that above-mentioned existing oil-well rig uses obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of high-power electric energy quality management control system of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that the electric driving control system that above-mentioned existing oil-well rig uses exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of high-power electric energy quality management control system of new structure, can improve the electric driving control system that general existing oil-well rig uses, make it have more practicality.Along with the continuous progress of science and technology, the birth of Active Power Filter-APF has brought hope for suppressing harmonic wave effectively.Fuel consume provides effective way during for the reduction drillng operation.The inventor studies, designs through continuous, and through after studying sample and improvement repeatedly, creates the present invention who has practical value finally.
Summary of the invention
The purpose of this utility model is, overcome problems such as filter effect that passive filtering system that the electric drive rig control system under the existing diesel-electric set electric supply uses exists and poor reliability, and provide a kind of high-power electric energy quality management control system of new structure, technical problem to be solved is to make it effectively purify electrical network by the harmonic wave that uses active filter filtering nonlinear load to produce, use the idle of reactive power compensator compensating non-linear load generation again, make the operation of reactive power compensator more reliable, be very suitable for practicality.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of high-power electric energy quality management control system that the utility model proposes, it comprises: one first circuit breaker links to each other with an electrical network; One transformer connects this first circuit breaker; At least one active filter, this active filter is connected with this transformer, export a reverse output harmonic wave electric current to this transformer, send this electrical network back to through this first circuit breaker, this active filter connects a current supply circuit of this electrical network again by one first current transformer, detect a harmonic current of this current supply circuit; And at least one reactive power compensator, this reactive power compensator is connected with this first circuit breaker, insert this electrical network via this first circuit breaker, this reactive power compensator connects this current supply circuit of this electrical network again by one second current transformer, detect a reactive current of this current supply circuit, wherein, this reactive power compensator is connected with this active filter, to receive the signal from this active filter.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid high-power electric energy quality management control system, wherein said active filter comprises: one second circuit breaker, be connected with this transformer, receive a rectification charging signal, and this output harmonic wave electric current is delivered to this transformer from this electrical network through this transformer; One reactor connects this second circuit breaker, receives this rectification charging signal from this second circuit breaker, and carries this output harmonic wave electric current to this second circuit breaker; One filter inserts between this second circuit breaker and this reactor, and this reactor of filtering is delivered to the switching frequency of this output harmonic wave electric current of this second circuit breaker; One three phase inverter bridge connects this reactor, receives this rectification charging signal from this reactor, and transmits this output harmonic wave electric current to this reactor; One energy storage capacitor connects this three phase inverter bridge, receives this rectification charging signal from this three phase inverter bridge, and exports an energy signal to this three phase inverter bridge; And a control board, connect this three phase inverter bridge, transmit an inverter control signal to this three phase inverter bridge, and be connected with this current supply circuit by this first current transformer, detect this harmonic current.
Aforesaid high-power electric energy quality management control system, wherein said reactive power compensator comprises: one the 3rd circuit breaker, be connected with this first circuit breaker, obtain a voltage signal of this electrical network; One anti-parallel thyristor connects the 3rd circuit breaker, receives this voltage signal from the 3rd circuit breaker; One capacitor is connected with this anti-parallel thyristor, and the quadergy of this electrical network of compensation is provided; One controller connects the 3rd circuit breaker, receives this voltage signal from the 3rd circuit breaker, and is connected with this current supply circuit by this second current transformer, detects this reactive current; And a control board, connect this controller, the 3rd circuit breaker and this anti-parallel thyristor, receive a control switching signal, and, send a triggering signal to this anti-parallel thyristor from this voltage signal of the 3rd circuit breaker from this controller.
Aforesaid high-power electric energy quality management control system, it also comprises: the cooling air-conditioning that uses under the normal condition; One standby cooling air-conditioning; And the room body of a steel construction, the cooling air-conditioning that uses under ccontaining this first circuit breaker, this transformer, this at least one active filter, this at least one reactive power compensator, this normal condition and this standby cooling air-conditioning.
The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the high-power electric energy quality management control system of the utility model has following advantage and beneficial effect at least:
Advantage:
1, operational reliability height.The active power filtering part of high-power electric energy quality management control system of the present utility model, can carry out effective filtering to the 2--60 subharmonic reliably, the harmonic wave that more can pass through to use active filter filtering nonlinear load to produce is earlier used the idle of reactive power compensator compensating non-linear load generation again, makes the reactive power compensation of parallel running partly move more reliable.When having avoided employing thuristor throw-in and throw-off L-C filtering to hold concurrently reactive compensation system, seriously cause phenomenons such as thyristor or filter capacitor damage easily because of the curtage wave distortion.
2, dynamic response is fast, and high-power electric energy quality management control system of the present utility model can satisfy the requirement of drilling well sudden unloading process load condition.What the harmonic filtration of system adopted is active power filtering, utilizes active power filtering to short (＜advantage such as 40ms), and cooperate thuristor throw-in and throw-off reactive power compensation electric capacity of step load variations response time.The various operating modes that can satisfy drillng operation under generating set or the mains supply are to electric current resultant distortion rate THDi, voltage resultant distortion rate THDv, the improvement of reactive power Q and the requirement of compensation.It is slow and cause thyristor, filter capacitor to damage or trip phenomenon such as the busbar voltage fluctuation is big to have avoided only adopting thuristor throw-in and throw-off L-C to carry out the filtering reactive compensation system response speed of holding concurrently.
Beneficial effect:
The electric current resultant distortion rate THDi and the voltage resultant distortion THDv that are produced when 1, the utility model can make the electric driving control system operation descend.
2, the utility model is improved the power factor P.F of high power electric power supply system.
3, it is approaching sinusoidal wave that the utility model makes voltage, the current waveform of high-power power supply, helps the safe operation of power consumption equipments such as electric-control system, well site and barracks.
4, the utility model has improved the utilance of high power electric power supply system generating set, the heating loss who has reduced circuit and generating set, and energy savings consumption has reduced production cost simultaneously
In sum, the utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the high-power electric energy quality management control system and the peripheral theory diagram that is connected of the utility model one preferred embodiment.
Fig. 2 is the active filter and the peripheral theory diagram that is connected of the high-power electric energy quality management control system of the utility model one preferred embodiment.
Fig. 3 is the reactive power compensator and the peripheral theory diagram that is connected of the high-power electric energy quality management control system of the utility model one preferred embodiment.
Fig. 4 is the voltage oscillogram of the preceding detected diesel-electric set electric supply of high-power electric energy quality management control system operation of the utility model one preferred embodiment.
Fig. 5 is the voltage oscillogram of the detected diesel-electric set electric supply in high-power electric energy quality management control system operation back of the utility model one preferred embodiment.
Fig. 6 is the current waveform figure of the preceding detected diesel-electric set electric supply of high-power electric energy quality management control system operation of the utility model one preferred embodiment.
Fig. 7 is the current waveform figure of the detected diesel-electric set electric supply in high-power electric energy quality management control system operation back of the utility model one preferred embodiment.
1: 2: the four circuit breakers of diesel generating set
3: phase three-wire three 600-690V, 50/60HZ electrical network 4,12,22: nonlinear load
Circuit breaker 6,13 in 5: the first: transformer
7: active filter 8: reactive power compensator
10: the second current transformers of 9: the first current transformers
11,21: 14: the second circuit breakers of power supply
15: reactor 16: three phase inverter bridge
17: energy storage capacitor 18: filter
19,26: control board 20,28: current transformer
25: capacitor 27: controller
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to high-power its embodiment of electric energy quality management control system, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the detailed description of graphic preferred embodiment is consulted in following cooperation.Explanation by embodiment, when can being to reach technological means that predetermined purpose takes and effect to obtain one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.
Below we to drive the oil-well rig system with the electricity that high-power electric energy quality management control system of the present utility model is applied to the high-power diesel electric set electric supply be that example describes.
Seeing also shown in Figure 1ly, is the high-power electric energy quality management control system and the peripheral theory diagram that is connected of the utility model one preferred embodiment.The high-power electric energy quality management control system of the utility model preferred embodiment comprises: first circuit breaker 5, transformer 6, active filter 7 and reactive power compensator 8.
The power drive system of being administered, by diesel generating set 1, the 4th circuit breaker 2, phase three-wire three 600-690V, 50/60HZ electrical network 3 and nonlinear load 4 constitute.Wherein, the electric energy that diesel generating set 1 sends is sent to phase three-wire three 600-690V through 2 controls of the 4th circuit breaker, and 50/60HZ electrical network 3 uses for the DC speed regulation or the frequency control of nonlinear load 4.
Quality of power supply management control system of the present utility model adopts first current transformer 9 to detect the harmonic current of diesel generating set 1 current supply circuit, be sent in the active filter 7, size through the reverse output harmonic wave electric current of high-speed computation processing controls active filter 7, the transformer 6 and first circuit breaker 5 through 480V/600-690V outputs to the phase three-wire three 600-690V that will administer again, in the 50/60HZ electrical network 3, compensate the harmonic current that electric power system produces, to reach the purpose that purifies electrical network.
Simultaneously, adopt second current transformer 10 to detect the reactive current of diesel generating set 1 current supply circuit, be sent in the reactive power compensator 8, size through high-speed computation processing controls reactive power compensator 8 output reactive currents, be sent to the phase three-wire three 600-690V that will administer through first circuit breaker 5 again, in the 50/60HZ electrical network 3, compensate the reactive current that electric power system produces, to reach the purpose of system's reactive power compensation.
Seeing also shown in Figure 2ly, is the active filter and the peripheral theory diagram that is connected of the high-power electric energy quality management control system of the utility model one preferred embodiment.The active filter of the high-power electric energy quality management control system of the utility model preferred embodiment comprises: second circuit breaker 14, reactor 15, filter 18, three phase inverter bridge 16, energy storage capacitor 17 and control board 19.
The electric power system of being administered is made of power supply 11 and nonlinear load 12.Wherein, supply with the electric energy that nonlinear load 12 uses by power supply 11.
Active filter of the present utility model adopts current transformer 20 to detect the harmonic current in the electric power system loop of being administered, deliver to the control board 19 in the active filter, handle the inversion work of controlling three phase inverter bridge 16 through high-speed computation, energy storage capacitor 17 energy stored are reverse into the output harmonic wave electric current reverse with detected harmonic current, again through reactor 15 and filter 18, with the switching frequency filtering, transformer 13 through second circuit breaker 14 and 480V/600-690V is transported in the electric power system loop of being administered, compensate the harmonic current that electric power system produces, to reach the purpose that purifies electrical network.Control board 19 is also controlled three phase inverter bridge 16 through circuit breaker 14 and reactor 15 simultaneously, gives energy storage capacitor 17 rectification charging, to reach the stable of energy storage capacitor 17 voltages.
Seeing also shown in Figure 3ly, is the reactive power compensator and the peripheral theory diagram that is connected of the high-power electric energy quality management control system of the utility model one preferred embodiment.The reactive power compensator device of the high-power electric energy quality management control system of the utility model preferred embodiment comprises: the 3rd circuit breaker 23, anti-parallel thyristor 24, capacitor 25, controller 27 and control board 26.
The electric power system that is compensated is made of power supply 21 and nonlinear load 22, wherein, supplies with the electric energy that nonlinear load 22 uses by power supply 21.
Reactive power compensator of the present utility model adopts current transformer 28 to detect the reactive current in the electric power system loop that is compensated, be transported to the controller 9 of reactive power compensation in putting, while also is transported to the voltage that the 3rd circuit breaker 23 is transported to anti-parallel thyristor 24 in the controller 27, through the reactive power calculation process signal of control switching anti-parallel thyristor 24 is sent to control board 26, simultaneously the voltage that also the 3rd circuit breaker 23 is transported to anti-parallel thyristor 24 is transported to control board 26, trigger anti-parallel thyristor 24 by control board 26 again, connect reactive-load compensation capacitor 25, to finish reactive power compensation.
When high-power electric energy quality management control system of the present utility model drives the oil-well rig system at the electricity that is applied to the high-power diesel electric set electric supply; in actual operation, can use 1-4 platform active filter 7 (400A-1200A/480V); 1-6 platform reactive power compensator 8 (1200KVAR-3000KVAR); particularly; when being used for the use of land or desert Environment; this high-power electric energy quality management control system also comprises: two cooling air-conditionings; wherein use under a normal condition; the room body (3000mm X3000mm X (6000-9000) mm) of a standby and steel construction; its ccontaining active filter 7; reactive power compensator 8; transformer; the 4th circuit breaker and two cooling air-conditionings are to play a protective role to the said equipment.
When operation, high-power electric energy quality management control system of the present utility model more can be by the signal link between active filter 7 and the reactive power compensator 8, behind source filter 7 end-of-jobs, produce a signal, start reactive power compensator 8 and carry out work, then realize the harmonic wave of operation active filter 7 filtering nonlinear loads generation earlier, utilize the idle of reactive power compensator 8 compensating non-linear loads generation again, to reach the more reliable beneficial effect of reactive power compensator 8 operations that makes parallel running.
See also shown in Fig. 4-7, Fig. 4 is the voltage oscillogram of the preceding detected diesel-electric set electric supply of high-power electric energy quality control system operation of the utility model one preferred embodiment.Fig. 5 is the voltage oscillogram of the detected diesel-electric set electric supply in high-power electric energy quality control system operation back of the utility model one preferred embodiment.Fig. 6 is the current waveform figure of the preceding detected diesel-electric set electric supply of high-power electric energy quality control system operation of the utility model one preferred embodiment.Fig. 7 is the current waveform figure of the detected diesel-electric set electric supply in high-power electric energy quality control system operation back of the utility model one preferred embodiment.Shown among the figure with the voltage of diesel-electric set electric supply and the waveform of electric current before and after the quality of power supply management system operation before the detected row of the present utility model of FLUKE tester.As can be seen from the figure the voltage of diesel-electric set electric supply and the waveform of electric current have obtained tangible improvement behind the utility model having used, and the electric current resultant distortion rate THDi and the voltage resultant distortion THDv that are produced during the operation of electric drive rig control device drop to 3-5% and 2-5% from original 10-40% and 10-30% respectively.Simultaneously also make the power factor P.F of diesel-electric set electric supply system bring up to 0.9--0.99 from 0.35--0.55.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (4)
1, a kind of high-power electric energy quality management control system is characterized in that it comprises:
One first circuit breaker links to each other with an electrical network;
One transformer connects this first circuit breaker;
At least one active filter, this active filter is connected with this transformer, export a reverse output harmonic wave electric current to this transformer, send this electrical network back to through this first circuit breaker, this active filter connects a current supply circuit of this electrical network again by one first current transformer, detect a harmonic current of this current supply circuit; And
At least one reactive power compensator, this reactive power compensator is connected with this first circuit breaker, insert this electrical network via this first circuit breaker, this reactive power compensator connects this current supply circuit of this electrical network again by one second current transformer, detect a reactive current of this current supply circuit, wherein, this reactive power compensator is connected with this active filter, to receive the signal from this active filter.
2, high-power electric energy quality management control system according to claim 1 is characterized in that wherein said active filter comprises:
One second circuit breaker is connected with this transformer, receives a rectification charging signal from this electrical network through this transformer, and this output harmonic wave electric current is delivered to this transformer;
One reactor connects this second circuit breaker, receives this rectification charging signal from this second circuit breaker, and carries this output harmonic wave electric current to this second circuit breaker;
One filter inserts between this second circuit breaker and this reactor, and this reactor of filtering is delivered to the switching frequency of this output harmonic wave electric current of this second circuit breaker;
One three phase inverter bridge connects this reactor, receives this rectification charging signal from this reactor, and transmits this output harmonic wave electric current to this reactor;
One energy storage capacitor connects this three phase inverter bridge, receives this rectification charging signal from this three phase inverter bridge, and exports an energy signal to this three phase inverter bridge; And
One control board connects this three phase inverter bridge, transmits an inverter control signal to this three phase inverter bridge, and is connected with this current supply circuit by this first current transformer, detects this harmonic current.
3, high-power electric energy quality management control system according to claim 1 is characterized in that wherein said reactive power compensator comprises:
One the 3rd circuit breaker is connected with this first circuit breaker, obtains a voltage signal of this electrical network;
One anti-parallel thyristor connects the 3rd circuit breaker, receives this voltage signal from the 3rd circuit breaker;
One capacitor is connected with this anti-parallel thyristor, and the quadergy of this electrical network of compensation is provided;
One controller connects the 3rd circuit breaker, receives this voltage signal from the 3rd circuit breaker, and is connected with this current supply circuit by this second current transformer, detects this reactive current; And
One control board connects this controller, the 3rd circuit breaker and this anti-parallel thyristor, receives the control switching signal from this controller, reaches this voltage signal from the 3rd circuit breaker, sends a triggering signal to this anti-parallel thyristor.
4, according to the described high-power electric energy quality management control system of arbitrary claim in the claim 1 to 3, it is characterized in that it also comprises:
The cooling air-conditioning that uses under one normal condition;
One standby cooling air-conditioning; And
The room body of a steel construction, the cooling air-conditioning that uses under ccontaining this first circuit breaker, this transformer, this at least one active filter, this at least one reactive power compensator, this normal condition and this standby cooling air-conditioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920107571XU CN201408994Y (en) | 2009-04-27 | 2009-04-27 | High-power power quality management control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920107571XU CN201408994Y (en) | 2009-04-27 | 2009-04-27 | High-power power quality management control system |
Publications (1)
| Publication Number | Publication Date |
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| CN201408994Y true CN201408994Y (en) | 2010-02-17 |
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ID=41679941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200920107571XU Expired - Lifetime CN201408994Y (en) | 2009-04-27 | 2009-04-27 | High-power power quality management control system |
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| CN (1) | CN201408994Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305449A (en) * | 2015-11-26 | 2016-02-03 | 上海华艾软件股份有限公司 | Ship shore power system |
| CN106849128A (en) * | 2016-12-28 | 2017-06-13 | 深圳市沃尔奔达新能源股份有限公司 | The power compensating system of diesel generating set |
| CN111193265A (en) * | 2019-11-08 | 2020-05-22 | 浙江晟泰电气有限公司 | Hybrid compensation method for comprehensive control of power quality control |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
-
2009
- 2009-04-27 CN CN200920107571XU patent/CN201408994Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305449A (en) * | 2015-11-26 | 2016-02-03 | 上海华艾软件股份有限公司 | Ship shore power system |
| CN105305449B (en) * | 2015-11-26 | 2018-01-09 | 上海艾临科智能科技有限公司 | Shipping shore power system |
| CN106849128A (en) * | 2016-12-28 | 2017-06-13 | 深圳市沃尔奔达新能源股份有限公司 | The power compensating system of diesel generating set |
| CN111193265A (en) * | 2019-11-08 | 2020-05-22 | 浙江晟泰电气有限公司 | Hybrid compensation method for comprehensive control of power quality control |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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