CN102142733A - Flywheel energy storage motor device with variable power supply structure - Google Patents
Flywheel energy storage motor device with variable power supply structure Download PDFInfo
- Publication number
- CN102142733A CN102142733A CN2010105855898A CN201010585589A CN102142733A CN 102142733 A CN102142733 A CN 102142733A CN 2010105855898 A CN2010105855898 A CN 2010105855898A CN 201010585589 A CN201010585589 A CN 201010585589A CN 102142733 A CN102142733 A CN 102142733A
- Authority
- CN
- China
- Prior art keywords
- winding
- power
- rectifier
- flywheel
- energy storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The invention provides a flywheel energy storage motor device with variable power supply structure, which mainly solves the technical problem of improving device reliability, lowering cost and the like. The flywheel energy storage motor device adopts the following technical scheme that the stator windings of the motor are a group of independent Y windings, wherein one winding is a reversible winding, and the rest windings are a first power-generation winding and a second power-generation winding; the reversible winding is respectively connected with a variable frequency drive unit or a first-phase rectifier and a third-phase rectifier by a bilateral switch; and the first power-generation winding and the second power-generation winding are respectively and correspondingly connected with a second-phase rectifier and a third-phase rectifier. When the motor device is motor-driven, a power supply and the reversible winding are conducted by the variable frequency drive unit and the bilateral switch, and the motor drives a flywheel to rotate and store energy. During power generation, the flywheel releases energy, each Y winding simultaneously generates power and operates, instantaneous high-power output is carried out by rectification and inversion, and the flywheel energy storage motor device is suitable for various devices.
Description
Technical field:
The present invention relates to a kind of system of storage of electrical energy, particularly a kind of engine with flywheel.
Background technology:
Flywheel energy storage dynamoelectric machine device, need to be applied to instantaneous high power load power supply occasion, as the land peak load regulation network, the large-sized gantry crane energy recuperation utilizes again, the subway station energy recuperation utilizes or the like again, this dynamoelectric machine device has the dynamoelectric machine of three-phase winding construction, but the axle head of this three-phase winding dynamoelectric machine is connected with the flywheel assembly of a stored energy, this three phase winding also is connected with the three-phase fully-controlled rectifier by bidirectional switch, this three-phase fully-controlled rectifier is connected with load through three-phase inverter, constitute a flywheel energy storage dynamoelectric machine device, though above-mentioned three-phase winding construction motor is simple in structure, but its reliability is lower, as there being a winding to break down in three phase windings, whole device can't move, this phenomenon is in some emergent load occasions, may lead to serious consequence, rectifying device in the device all is to adopt high-power silicon controlled rectifier (IGBT), in high-power field, the price of power device is with being the exponential type relation between the capacity, increase along with the single tube desired volume, its price sharply raises, reliability reduces, and these high-capacity power devices, full control IGBT device price is very expensive, generally is not control more than 3 times of type power diode price with capacity.
Summary of the invention:
Technical problem to be solved by this invention is, provides a kind of improved electric power-feeding structure variable flywheel energy storage electric machine, and it can improve the reliability of flywheel energy storage electric machine, and can reduce the cost of whole power conversion system.
The technical scheme that the present invention solves the problems of the technologies described above employing is:
The variable flywheel energy storage electric machine of electric power-feeding structure, include the dynamoelectric machine of band flywheel, bidirectional switch, variable frequency drive unit, three-phase rectifier and three-phase inverter, be characterized in: the stator winding of dynamoelectric machine is one group of separate Y winding, it is reversible winding that described stator winding has a Y winding, all the other Y windings of this stator winding are the first and second generating windings, this reversible winding is connected with first three-phase inverter or first three-phase rectifier of variable frequency drive unit respectively through bidirectional switch, this is first years old, second generating winding correspondence respectively is connected with second, the 3rd three-phase rectifier, the motoring condition power supply is connected reversible winding through the 4th three-phase rectifier of variable frequency drive unit and first three-phase inverter and bidirectional switch, the energy storage of driven by motor flywheel high speed rotating, the generating state flywheel releases energy, each Y winding of stator winding is made generator operation simultaneously, and through each independently first, the second and the 3rd rectifier and second three-phase inverter are done instantaneous high-power output, form the electric power-feeding structure variset.
Dynamoelectric machine stator winding of the present invention is separate Y winding, break down as certain phase winding wherein, but still derate operation of whole device, obviously improve the reliability of device, the present invention is when motoring condition, only reversible winding work, polyphase machine moves with three phase electric machine, and its power total capacity is fallen greatly, and each composition capacity of variable frequency drive unit reduces, can reduce equipment cost, motor stator winding is independent Y winding, and the rectifying device that is connected with it all adopts power diode and traditional structure relatively, the average price of device can reduce greatly, has splendid economic benefit.
Description of drawings:
Fig. 1 is the variable flywheel energy storage electric machine of an electric power-feeding structure of the present invention schematic diagram.
Fig. 2 is Fig. 1 three-phase rectifier circuit theory diagrams.
Fig. 3 is a three-phase inverter circuitry schematic diagram among Fig. 1.
Embodiment:
With reference to Fig. 1, the variable flywheel energy storage electric machine of electric power-feeding structure includes stator winding 1, bidirectional switch 2, variable frequency drive unit 3, three-phase rectifier 4, flat wave capacitor 5 and the three-phase inverter 6 of dynamoelectric machine.
The stator winding 1 of dynamoelectric machine is to be made of one group of (for n) separate Y winding, wherein a cover Y winding is reversible winding 11, this reversible winding 11 is connected with bidirectional switch 2, all the other (being n-1 cover Y winding) are the generating winding, the first generating winding 12, the second generating winding 13 as shown in fig. 1 ... wherein the first generating winding 12 is connected with second three-phase rectifier 42, the second generating winding 13 is connected with the 3rd three-phase rectifier 43, when n＞3, each generate electricity winding and three-phase rectifier be connected can and the like;
Dynamoelectric machine is except that the said structure characteristics, similar substantially with prior art constructions, on the shaft extension of its rotor, flywheel assembly is installed, when dynamoelectric machine is in electronic operating state, rotor drives the flywheel high speed rotating, and flywheel will store a large amount of functions can be required for instantaneous high-power output.
The structure fundamental sum prior art of variable frequency drive unit 3 is similar, includes first three-phase inverter 61 of the 4th three-phase rectifier 44, first flat wave capacitor 51 and the three-phase inverter 6 of three-phase rectifier 4; Wherein the 4th three-phase rectifier 44 is not for controlling the rectifier type rectifier, as shown in Figure 2, each rectifying device is a power diode, when needing the voltage of rapid adjustment first flat wave capacitor 51, can adopt thyristor to replace power diode, because the power diode price is only controlled 1/3 of device IGBT entirely for equal capacity, therefore, the technical measures that the present invention adopts can significantly reduce installation cost; First flat wave capacitor 51 of one flat wave capacitor 5 is connected in parallel on the output of the 4th three-phase rectifier 44, and this output is connected with first three-phase inverter 61 of a three-phase inverter 6; The circuit theory diagrams of first three-phase inverter 61 such as Fig. 3, be to adopt 2 classical flat IGBT fully controlled bridges, big or to harmonic requirement when comparatively strict when capacity, can adopt three level structures, because dynamoelectric machine is when motoring condition, only reversible winding 11 work, other n-1 cover winding zero loads, polyphase machine moves as three phase electric machine, its gross power is reduced to the 1/n of total capacity, the IGBT capacity of corresponding first three-phase inverter 61 only needs the 1/n of traditional structure, thereby can further reduce installation cost.
Three-phase rectifier 4 as shown in Figure 1, 2, includes the first, second, third and the 4th three- phase rectifier 41,42,43,44, and the 26S Proteasome Structure and Function of each three-phase rectifier is all same or similar with above-mentioned the 4th three-phase rectifier 44; Wherein an end of the input of first three-phase rectifier 41 and bidirectional switch 2 is connected, when this end is closed, the reversible winding 11 of first three-phase rectifier 41 and stator winding 1 is connected, dynamoelectric machine is in the generator operation state, and the output of first three-phase rectifier 41 is connected with the output bus of device; Second three-phase rectifier 42, the first generating winding of its input and stator winding 1 is connected, and its output is connected with the device output bus; The 3rd three-phase rectifier 43, the 2nd generating winding of its input and stator winding 1 is connected, and its output is connected with the device output bus; When stator winding 1 consist of the separate Y winding of n the time, promptly have the three-phase rectifier of n-1 generating winding and correspondence to be connected.
Flat wave capacitor 5, as shown in Figure 1, include first flat wave capacitor 51 and second flat wave capacitor 52, its structure and function and prior art are same or similar, first flat wave capacitor 51 is parallel to the output of the 4th rectifier 44, first three-phase inverter 61 that is used for input three-phase inverter 6 after the direct current filtering of the 4th rectifier 44, second flat wave capacitor 52 is parallel to the input of second three-phase inverter 62, is used to connect second three-phase inverter 62 of input three-phase inverter 6 after the direct current filtering of rectifier of stator winding 1 each winding.
Three-phase inverter 6, shown in Fig. 1,3, include first three-phase inverter 61 and second three-phase inverter 62, the two 26S Proteasome Structure and Function is same or similar, first three-phase inverter, 61 inputs connect the 4th three-phase rectifier 44, its output connects bidirectional switch 2, the second three-phase inverters 62 inputs and is connected in the device output bus, and its output connects load.
When the variable flywheel energy storage electric machine of electric power-feeding structure moves:
Motoring condition---power net electric power is converted into direct current through the 4th three-phase rectifier 44 of variable frequency drive unit 3, first flat wave capacitor, 51 filtering through flat wave capacitor 5, be converted into the alternating current of frequency conversion then through first three-phase inverter 61 of three-phase inverter 6, thereupon to reversible winding 11 power supplies of the stator winding 1 of dynamoelectric machine, the motor high speed rotating also drives flywheel high speed rotating on its rotor shaft extension, and it is required for instantaneous high-power output that flywheel can store a large amount of kinetic energy.
Generating state---electronic/engine is high speed rotating under flywheel drives, bidirectional switch 2 is connected the reversible winding 11 and first three-phase rectifier 41, whole frequency conversion rate alternating currents of producing of (n cover) Y winding, through each three-phase rectifier of correspondence (as first, second, third ... the n three-phase rectifier) exports same dc bus to, through second flat wave capacitor, 52 filtering of flat wave capacitor 5, second three-phase inverter 62 through three-phase inverter 6 is converted into powerful AC energy output then.
Claims (3)
1. variable flywheel energy storage electric machine of electric power-feeding structure, include the dynamoelectric machine of band flywheel, bidirectional switch, variable frequency drive unit, three-phase rectifier and three-phase inverter, it is characterized in that: the stator winding of dynamoelectric machine (1) is one group of separate Y winding, it is reversible winding (11) that described stator winding (1) has a Y winding, all the other Y windings of this stator winding (1) are the first and second generating windings (12,12 '), this reversible winding (11) is connected with the three-phase inverter (61) or first three-phase rectifier (41) of variable frequency drive unit (3) respectively through bidirectional switch (2), this is first years old, the second generating winding (12,12 ') correspondence is connected with first respectively, the 3rd three-phase rectifier (42,43), the motoring condition power supply is connected reversible winding (11) through the 4th three-phase rectifier (44) of variable frequency drive unit (3) and first three-phase inverter (61) and bidirectional switch (2), the energy storage of driven by motor flywheel high speed rotating, the generating state flywheel releases energy, each Y winding of stator winding (1) is made generator operation simultaneously, and through each separate first, the second and the 3rd rectifier (41,42,43) and second three-phase inverter (62) do instantaneous high-power output, form the electric power-feeding structure variset.
2. the variable flywheel energy storage electric machine of electric power-feeding structure according to claim 1 is characterized in that the first, second, third and the 4th rectifier (41,42,43,44) for not controlling the rectifier type rectifier, and each rectifying device is a power diode.
3. the variable flywheel energy storage electric machine of electric power-feeding structure according to claim 1 is characterized in that first and second inverters (61,62) are two level controllable silicon fully controlled bridges or three level structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010585589A CN102142733B (en) | 2010-12-10 | 2010-12-10 | Flywheel energy storage motor device with variable power supply structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010585589A CN102142733B (en) | 2010-12-10 | 2010-12-10 | Flywheel energy storage motor device with variable power supply structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102142733A true CN102142733A (en) | 2011-08-03 |
| CN102142733B CN102142733B (en) | 2012-10-24 |
Family
ID=44410038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010585589A Active CN102142733B (en) | 2010-12-10 | 2010-12-10 | Flywheel energy storage motor device with variable power supply structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102142733B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104601002A (en) * | 2014-12-29 | 2015-05-06 | 南京航空航天大学 | Novel topological structure of sparse two-stage matrix converter |
| CN114362561A (en) * | 2021-12-30 | 2022-04-15 | 中车永济电机有限公司 | Locomotive traction converter and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004187346A (en) * | 2002-11-29 | 2004-07-02 | Mitsubishi Electric Corp | Generator motor system for vehicle |
| US20080271935A1 (en) * | 2007-05-03 | 2008-11-06 | Erkan Mese | Multiple winding electric machine |
| CN101573855A (en) * | 2006-09-25 | 2009-11-04 | 詹姆斯·夸克 | An energy storage device and method of use |
| CN101764491A (en) * | 2008-12-24 | 2010-06-30 | 徐隆亚 | Megawatt grade brushless slip ring double-fed wind generator/motor and control method thereof |
| CN201869080U (en) * | 2010-12-10 | 2011-06-15 | 中国船舶重工集团公司第七〇四研究所 | Flywheel energy storage motor device with changeable power supply structure |
-
2010
- 2010-12-10 CN CN201010585589A patent/CN102142733B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004187346A (en) * | 2002-11-29 | 2004-07-02 | Mitsubishi Electric Corp | Generator motor system for vehicle |
| CN101573855A (en) * | 2006-09-25 | 2009-11-04 | 詹姆斯·夸克 | An energy storage device and method of use |
| US20080271935A1 (en) * | 2007-05-03 | 2008-11-06 | Erkan Mese | Multiple winding electric machine |
| CN101764491A (en) * | 2008-12-24 | 2010-06-30 | 徐隆亚 | Megawatt grade brushless slip ring double-fed wind generator/motor and control method thereof |
| CN201869080U (en) * | 2010-12-10 | 2011-06-15 | 中国船舶重工集团公司第七〇四研究所 | Flywheel energy storage motor device with changeable power supply structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104601002A (en) * | 2014-12-29 | 2015-05-06 | 南京航空航天大学 | Novel topological structure of sparse two-stage matrix converter |
| CN114362561A (en) * | 2021-12-30 | 2022-04-15 | 中车永济电机有限公司 | Locomotive traction converter and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102142733B (en) | 2012-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2400619B1 (en) | Low cost current source converters for power generation application | |
| CN101640423B (en) | Generator system for wind power generation and variable speed control method | |
| JP4858937B2 (en) | System interconnection device for generated power | |
| AU2010353929B2 (en) | Converting device of electrical energy | |
| Al-Nabi et al. | Input power factor compensation for high-power CSC fed PMSM drive using d-axis stator current control | |
| CN202889279U (en) | Brushless doubly fed motor excitation control device | |
| CN102709945B (en) | Energy-storage wind power generation system with squirrel-cage generator | |
| EP2368317A2 (en) | Frequency convertor | |
| US9683540B2 (en) | Electric unit for a pumped-storage power plant having components within and outside of an underground cavern | |
| CN103219740A (en) | Grid connecting system of permanent magnet synchronous wind driven generator | |
| CN107947222A (en) | Direct current fan power transmission system | |
| Rana et al. | Self excited induction generator for isolated pico hydro station in remote areas | |
| Alnasir et al. | A small-scale standalone wind energy conversion system featuring SCIG, CSI and a novel storage integration scheme | |
| Shukla et al. | Power electronics applications in wind energy conversion system: A review | |
| Pan et al. | Series compensated open-winding PM generator wind generation system | |
| CN201869080U (en) | Flywheel energy storage motor device with changeable power supply structure | |
| Garcés et al. | High frequency wind energy conversion from the ocean | |
| Luqman et al. | Analysis of variable speed wind energy conversion system with PMSG and Vienna rectifier | |
| CN102142733B (en) | Flywheel energy storage motor device with variable power supply structure | |
| Hu et al. | On the flywheel/battery hybrid energy storage system for DC microgrid | |
| CN202841050U (en) | Cascaded high-voltage inverter speed regulating system with energy feedback function | |
| US8311679B2 (en) | Matrix converters for wind energy conversion systems | |
| CN107707158B (en) | Frequency converter comprehensive braking system and working method thereof | |
| CN101252339A (en) | Polyphase electric machine variable frequency speed regulator | |
| Wang et al. | Application of a dual-half-controlled-converter in a PMSG wind turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151204 Address after: 200031 No. 10, Shanghai, Hengshan Road Patentee after: SHANGHAI CSIC SHIP PROPULSION EQUIPMENT CO., LTD. Address before: 200031 No. 10, Shanghai, Hengshan Road Patentee before: No.704 Research Institute, China Shipbuilding Heavy Industry Group Corporation |