CN100461581C - Rotary electro magnetic electric energy quality comprehensive control device - Google Patents
Rotary electro magnetic electric energy quality comprehensive control device Download PDFInfo
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- CN100461581C CN100461581C CNB2007100720303A CN200710072030A CN100461581C CN 100461581 C CN100461581 C CN 100461581C CN B2007100720303 A CNB2007100720303 A CN B2007100720303A CN 200710072030 A CN200710072030 A CN 200710072030A CN 100461581 C CN100461581 C CN 100461581C
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- wound rotor
- rotor induction
- inverter
- inverters
- control device
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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
Abstract
The invention is a rotary electromagnetic electric energy quality synthetic control device, belonging to the field of electric machine and power electronics technique, and it comprises winding rotator induction electric machines 1 and 2, inverters 1 and 2, rectifier, transformer and master controller, where the output end of the rectifier is connected with those of the inverters and the output end of the first inverter is connected with the rotator winding of the first winding rotor induction electric machine and the output end of the second inverter is connected with the rotator winding of the second induction electric machine, and the rotors of the two induction electric machines are fixed and coaxially rotate, the stator winding of the second induction electric machine is connected with the primary side of the transformer and the controlled ends of the two inverters and the rectifier are separately connected with the output ends of the master controller.
Description
Technical field
The present invention relates to a kind of quality of power supply control device, belong to motor and electric and electronic technical field.
Background technology
Along with the application of power electronic equipment is increasingly extensive, the harmonic pollution in the electrical network is also serious day by day.In addition, the power factor of many power electronic equipments is very low, also brings added burden and influences power supply quality to electrical network.Therefore harmonic carcellation pollutes and improves power factor, has become key subjects in the power electronic technology.
The exemplary device that is used for compensating power has Static Var Compensator and static reacance generator.The exemplary device that is used for compensation harmonic has active power filter.The exemplary device that is used for electric power system tide control is a THE UPFC, the primary structure of THE UPFC as shown in Figure 1, it comprises two voltage source converters that are connected by the public direct-current end, and one of them current transformer is connected in parallel by coupling transformer and transmission line; Another current transformer is sealed in the transmission line by an AC transformer, and the direct voltage of two current transformers is provided by a common electrical container.The basic thought of THE UPFC is with a kind of unified power electronics control device, the only variation by control law, just can control simultaneously, thereby can distinguish or realize several different functions such as shunt compensation, series compensation, phase shift simultaneously electric power system basic parameters such as line voltage distribution, impedance, phase places.
But because Static Var Compensator, static reacance generator, active power filter and THE UPFC all adopt power semiconductor, this can improve the cost of device on the one hand, also can reduce the reliability of device on the other hand, and the overload capacity of device is low, also can produce new Harmonic Interference.
Summary of the invention
The purpose of this invention is to provide a kind of rotary electro magnetic electric energy quality comprehensive control device, with the quality of power supply control device that overcomes prior art because of adopting power semiconductor, improved the cost of device on the one hand, reduced the reliability of device on the other hand, and the overload capacity of device is low, can produce the defective of new Harmonic Interference.It comprises wound rotor induction machine 1 No. one, No. two wound rotor induction machines 2, an inverter 3, No. two inverters 4, rectifier 5, transformer 6 and master controller 7, the cathode output end of rectifier 5 connects the electrode input end of an inverter 3 and the electrode input end of No. two inverters 4, the cathode output end of rectifier 5 connects the negative input of an inverter 3 and the negative input of No. two inverters 4, the three-phase output end of an inverter 3 connects the three-phase rotor winding of a wound rotor induction machine 1, the three-phase output end of No. two inverters 4 connects the three-phase rotor winding of No. two wound rotor induction machines 2, the rotor of a wound rotor induction machine 1 is fixed as coaxial rotation with the rotor of No. two wound rotor induction machines 2, the threephase stator winding of No. two wound rotor induction machines 2 is connected on the end of transformer 6 former limits three phase windings, the other end of transformer 6 former limits three phase windings links together an inverter 3, the controlled end of No. two inverters 4 and rectifier 5 is connected on three outputs of master controller 7.
During device work of the present invention, the three-phase input end of rectifier 5 is connected in the three-phase circuit of electrical network 10, the threephase stator winding of a wound rotor induction machine 1 is connected in the three-phase circuit of electrical network 10, the secondary coil of transformer 6 is connected in the three-phase circuit of electrical network 10, parameters such as the voltage of master controller 7 detection of grid 10, electric current, phase place, harmonic wave.
The rotary electro magnetic electric energy quality comprehensive control device that the present invention proposes can be realized the trend control of electrical network, active power that can compensation network, reactive power, can also suppress and isolate harmonic wave, bucking voltage flickering and moment are fallen, as stand-by power supply generating or utilize wind energy, water-energy generating electricity, and use as UPS (uninterrupted power supply), it is low to have cost, the reliability height, overload capacity produces new characteristics such as Harmonic Interference by force and not, multi-functional and the high performance height that can realize energy converter and quality of power supply control device is integrated, therefore has a good application prospect in electric power system.The present invention realizes by induction machine the compensation of trend control, active power and the reactive power of electrical network, the inhibition and the isolation of harmonic wave, just when providing exciting current, used the power electronic device of low capacity for induction machine, utilized that the motor body price is low, anti-overload ability is strong, can suppress advantage such as harmonic wave, therefore cost is low, overload capacity is strong, can not produce new harmonic wave.
Description of drawings
Fig. 1 is the structural representation of the THE UPFC of prior art, and Fig. 2 is a structural representation of the present invention, and Fig. 3 is the structural representation of execution mode two, and Fig. 4 is the structural representation of execution mode four.
Embodiment
Embodiment one: specify present embodiment below in conjunction with Fig. 2.Present embodiment is by a wound rotor induction machine 1, No. two wound rotor induction machines 2, an inverter 3, No. two inverters 4, rectifier 5, transformer 6 and master controller 7 are formed, the cathode output end of rectifier 5 connects the electrode input end of an inverter 3 and the electrode input end of No. two inverters 4, the cathode output end of rectifier 5 connects the negative input of an inverter 3 and the negative input of No. two inverters 4, the three-phase output end of an inverter 3 connects the three-phase rotor winding of a wound rotor induction machine 1, the three-phase output end of No. two inverters 4 connects the three-phase rotor winding of No. two wound rotor induction machines 2, the rotor of a wound rotor induction machine 1 is fixed as coaxial rotation with the rotor of No. two wound rotor induction machines 2, the threephase stator winding of No. two wound rotor induction machines 2 is connected on the end of transformer 6 former limits three phase windings, the other end of transformer 6 former limits three phase windings links together an inverter 3, the controlled end of No. two inverters 4 and rectifier 5 is connected on three outputs of master controller 7.Master controller 7 is according to electrical network 10 feedacks (as power factor, harmonic wave etc.) and operating instruction, controls the output of inverter 3, No. two inverters 4 and rectifier 5, makes device of the present invention operate in different patterns.Inverter 3, No. two inverters 4, rectifiers 5 are all selected PWM-type (PWM) power conversion unit for use.
When the rotary electro magnetic electric energy quality comprehensive control device of present embodiment operates in the trend control model, one side is according to the running status of electrical network, control the size of inverter 3, No. two inverter 4 output DC excitation electric currents, regulate the reactive power of wound rotor induction machine 1 output and the size of No. two wound rotor induction machine 2 stator winding output voltages; On the other hand, the output instantaneous frequency of an inverter 3 of control, adjust the rotor transient speed of a wound rotor induction machine 1 (No. two wound rotor induction machines 2), and then adjust the phase place of No. two wound rotor induction machine 2 stator winding output voltages; According to the harmonic wave state of electrical network and load, controlling inverter 3 output current medium frequencys is that (k is a natural number to 6kf simultaneously; F is a mains frequency) size of alternating current component, regulate wound rotor induction machine 1 stator winding medium frequency size, and then to offset the frequency that electrical network and load-side produce be the harmonic current of (6k ± 1) f for the harmonic current of (6k ± 1) f.
When the rotary electro magnetic electric energy quality comprehensive control device of present embodiment operates in the reactive power compensation pattern, one side is according to the idle state of electrical network and load, control the size of inverter 3 output current DC component, regulate the reactive power of energy converter output; According to the harmonic wave state of electrical network and load, controlling No. two wound rotor induction machine 2 output current medium frequencys is that (k is a natural number to 6kf simultaneously; F is a mains frequency) size of alternating current component, regulate wound rotor induction machine 1 stator winding medium frequency size, and then to offset the frequency that electrical network and load-side produce be the harmonic current of (6k ± 1) f for the harmonic current of (6k ± 1) f.
When active power surplus, deficiency or the electrical network of electrical network breaks down when stopping to power to the load, rotary electro magnetic electric energy quality comprehensive control device operates in the active power compensation model, control the frequency of inverter 3, No. two inverter 4 output currents, control the size of wound rotor induction machine 1, No. two wound rotor induction machine 2 spinner velocities, the electric energy of grid excess is converted to the rotation function of rotor, or the rotation function of rotor is converted into the AC energy of mains frequency, supply with electrical network or load.
Embodiment two: specify present embodiment below in conjunction with Fig. 3.The difference of present embodiment and execution mode one is: it also comprises clutch 9 and prime mover 12, and the engine shaft of prime mover 12 is fixed on the rotor axle head of the rotor axle head of a wound rotor induction machine 1 or No. two wound rotor induction machines 2 to realize coaxial rotation by clutch 9.When electrical network and load need Continuous Compensation active power, rotary electro magnetic electric energy quality comprehensive control device operates in generator mode, can utilize the rotor of prime mover driven induction machine, by controlling the size and the frequency of inverter 3 output currents, even the speed change of prime mover, also can realize uninterrupted power supply, perhaps utilize wind energy, water energy equal energy source supplementary power to electrical network and the constant active power of load output frequency.Other composition is identical with execution mode one with connected mode.
Embodiment three: the difference of present embodiment and execution mode two is: prime mover is gas engine, wind motor or hydraulic generator equal power device.Other composition is identical with execution mode two with connected mode.
Embodiment four: specify present embodiment below in conjunction with Fig. 4.The difference of present embodiment and execution mode one is: it also comprises flying wheel 11, and flying wheel 11 is arranged on the armature spindle of a wound rotor induction machine 1 or on the armature spindle of No. two wound rotor induction machines 2.Can increase the inertia of system according to system's needs by flying wheel is linked to each other with the armature spindle of motor, improve the active power regulating power of system.Other composition is identical with execution mode one with connected mode.
Claims (4)
1. rotary electro magnetic electric energy quality comprehensive control device, it is characterized in that it comprises a wound rotor induction machine (1), No. two wound rotor induction machines (2), an inverter (3), No. two inverters (4), rectifier (5), transformer (6) and master controller (7), the cathode output end of rectifier (5) connects the electrode input end of an inverter (3) and the electrode input end of No. two inverters (4), the cathode output end of rectifier (5) connects the negative input of an inverter (3) and the negative input of No. two inverters (4), the three-phase output end of an inverter (3) connects the three-phase rotor winding of a wound rotor induction machine (1), the three-phase output end of No. two inverters (4) connects the three-phase rotor winding of No. two wound rotor induction machines (2), the motor shaft of a wound rotor induction machine (1) is fixed as coaxial rotation with the rotor of No. two wound rotor induction machines (2), the threephase stator winding of No. two wound rotor induction machines (2) is connected on the end of the former limit of transformer (6) three phase windings, the other end of the former limit of transformer (6) three phase windings links together an inverter (3), the controlled end of No. two inverters (4) and rectifier (5) is connected on three outputs of master controller (7).
2. rotary electro magnetic electric energy quality comprehensive control device according to claim 1, it is characterized in that it also comprises clutch (9) and prime mover (12), the engine shaft of prime mover (12) is fixed on the rotor axle head of the rotor axle head of a wound rotor induction machine (1) or No. two wound rotor induction machines (2) to realize coaxial rotation by clutch (9).
3. rotary electro magnetic electric energy quality comprehensive control device according to claim 2 is characterized in that prime mover is gas engine, wind motor or hydraulic generator.
4. rotary electro magnetic electric energy quality comprehensive control device according to claim 1, it is characterized in that it also comprises flying wheel (11), flying wheel (11) is arranged on the armature spindle of a wound rotor induction machine (1) or on the armature spindle of No. two wound rotor induction machines (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100720303A CN100461581C (en) | 2007-04-13 | 2007-04-13 | Rotary electro magnetic electric energy quality comprehensive control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100720303A CN100461581C (en) | 2007-04-13 | 2007-04-13 | Rotary electro magnetic electric energy quality comprehensive control device |
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| Publication Number | Publication Date |
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| CN101071947A CN101071947A (en) | 2007-11-14 |
| CN100461581C true CN100461581C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100720303A Expired - Fee Related CN100461581C (en) | 2007-04-13 | 2007-04-13 | Rotary electro magnetic electric energy quality comprehensive control device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020167298A1 (en) * | 2001-05-10 | 2002-11-14 | Yasuhiro Noro | Power adjustment apparatus |
| CN1697307A (en) * | 2005-04-22 | 2005-11-16 | 哈尔滨理工大学 | Pulse-width modulation type transducer of containing passive filter |
| CN2773969Y (en) * | 2004-12-14 | 2006-04-19 | 华研国电(北京)科技发展有限公司 | Electricity-energy quality flexible controller |
| CN1794534A (en) * | 2005-11-23 | 2006-06-28 | 哈尔滨工业大学 | Brushless phase modifier possessing harmonic wave inhibition function |
| CN1862907A (en) * | 2006-05-31 | 2006-11-15 | 哈尔滨工业大学 | Rotary electromagnetic type active and reactive power continuously regulater |
-
2007
- 2007-04-13 CN CNB2007100720303A patent/CN100461581C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020167298A1 (en) * | 2001-05-10 | 2002-11-14 | Yasuhiro Noro | Power adjustment apparatus |
| CN2773969Y (en) * | 2004-12-14 | 2006-04-19 | 华研国电(北京)科技发展有限公司 | Electricity-energy quality flexible controller |
| CN1697307A (en) * | 2005-04-22 | 2005-11-16 | 哈尔滨理工大学 | Pulse-width modulation type transducer of containing passive filter |
| CN1794534A (en) * | 2005-11-23 | 2006-06-28 | 哈尔滨工业大学 | Brushless phase modifier possessing harmonic wave inhibition function |
| CN1862907A (en) * | 2006-05-31 | 2006-11-15 | 哈尔滨工业大学 | Rotary electromagnetic type active and reactive power continuously regulater |
Non-Patent Citations (2)
| Title |
|---|
| 变频驱动控制及其相关电能质量问题的研究. 吴娅妮.华北电力大学硕士学位论文，第4期. 2005 |
| 变频驱动控制及其相关电能质量问题的研究. 吴娅妮.华北电力大学硕士学位论文，第4期. 2005 * |
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| CN101071947A (en) | 2007-11-14 |
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Assignee: ZHONGSHAN FUSHENG ELECTROMECHANICAL CO., LTD. Assignor: Harbin Institute of Technology Contract record no.: 2010440000684 Denomination of invention: Rotary electro magnetic electric energy quality comprehensive control device Granted publication date: 20090211 License type: Exclusive License Open date: 20071114 Record date: 20100609 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20160413 |