CN101741161A - Rare earth permanent magnet motor and control method thereof - Google Patents
Rare earth permanent magnet motor and control method thereof Download PDFInfo
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- CN101741161A CN101741161A CN200910262198A CN200910262198A CN101741161A CN 101741161 A CN101741161 A CN 101741161A CN 200910262198 A CN200910262198 A CN 200910262198A CN 200910262198 A CN200910262198 A CN 200910262198A CN 101741161 A CN101741161 A CN 101741161A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
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Abstract
The embodiment of the invention provides a rare earth permanent magnet motor and a control method thereof, wherein the rare earth permanent magnet motor comprises three-phase stator windings, outlet terminals of each-phase stator winding in the three-phase stator windings comprise at least one tap in addition to the outlet terminals at the head end and the tail end, and the different connections of the outlet terminals correspond to different induced potentials. Therefore, the rare earth permanent magnet motor can be applicable to different power supply voltages through the connection of different outlet terminals. When the power supply voltage changes, the rare earth permanent magnet motor can realize the self-adaptation to the change of the power supply voltage, thereby leading the induced potential to be always matched with the power supply voltage and further improving the power factor of the rare earth permanent magnet motor.
Description
Technical field
The present invention relates to the motor technology field, particularly a kind of rare-earth permanent magnet motor and control method thereof.
Background technology
Rare-earth permanent magnet motor, when moving under rated voltage, even if idle condition, its power factor also can reach more than 0.8.Because rare-earth permanent magnet motor power factor height, so not only the copper loss of motor itself significantly reduces, and also reduced the loss on the transmission line, so the range of application of rare-earth permanent magnet motor is more and more wider.
But, existing rare-earth permanent magnet motor supply power voltage with respect to rated voltage generation deviation situation under, its no-load current can enlarge markedly, the light running performance significantly degenerates.The rare-earth permanent magnet motor of a 380V 22kW for example, when supply voltage equaled induced potential (380 volts), no-load current was only about 1.5 amperes, and reduced to 360 volts or when being increased to 400 volts, no-load current may reach 12～15 amperes when supply voltage.This is explanation just, though that voltage has only changed is about 5%, no-load current may increase 8-10 doubly.
Drive at rare-earth permanent magnet motor under the situation of oil pumper, the most of the time in each stroke all belongs to light running.Under the situation of its light running, marked change also takes place in power factor along with the variation of supply power voltage.For example when load was rated power 1/3, if supply power voltage also is about 380V, its power factor can be near 0.958 so; In case and supply power voltage becomes 340V or 4200V from 380V, power factor will be reduced to has only 0.7, even about 0.5, as shown in Figure 1.This figure is that the expression load is to be the power factor of 1/3 o'clock rare-earth permanent magnet motor of rated power and the curve chart of the relation between the supply power voltage.As seen no matter the performance of rare-earth permanent magnet motor is zero load or load, all very responsive to supply power voltage.
The supply line in oil field generally reaches 10km even longer, and under longer supply line situation, the voltage difference of the head end of supply line and end is bigger.A large amount of actual measurements show, are the electric power system of 380 volts of motor for rated voltage is installed, and head end voltage reaches the 410-420 volt usually, and end has only about the 350-360 volt.Therefore, existing rare-earth permanent magnet motor is in the supply line in oil field, and power factor can significantly reduce, and the loss of motor itself is increased, and has also increased the loss of supply line and transformer.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of rare-earth permanent magnet motor and control method thereof, can adaptation power supply voltage, reach higher power factor.
The embodiment of the invention provides a kind of rare-earth permanent magnet motor, comprise the threephase stator winding, the leading-out terminal of the every phase stator winding in the described threephase stator winding has at least one tap except the leading-out terminal at head and the tail two ends, the difference of leading-out terminal connects corresponding different induced potentials.
Preferably, when described threephase stator winding was star connection, described tap was drawn from the head end position of every phase stator winding;
The tail end leading-out terminal of the described threephase stator winding formation neutral point that links together;
Power line connects the corresponding different induced potential of the different leading-out terminal of stator winding head end.
Preferably, when described threephase stator winding was star connection, described tap was drawn from the tail end position of every phase stator winding;
Power line connects the leading-out terminal of described threephase stator winding head end, the leading-out terminal of the stator winding tail end formation neutral point that is connected together, and the difference of the leading-out terminal of tail end connects.
Preferably, when described threephase stator winding was star connection, described tap was drawn respectively from the head and the tail two ends of every phase stator winding;
One group of leading-out terminal of described threephase stator winding head end connects power line; The remaining leading-out terminal of head end is vacant;
One group of leading-out terminal of described threephase stator winding tail end connects neutral point; The remaining leading-out terminal of tail end is vacant.
Preferably, described tap is one, two, three or four.
Preferably, the difference of leading-out terminal connects k (2～6) % that the difference of pairing induced potential and motor rated voltage is a rated voltage; Wherein k is the number of described tap.
The embodiment of the invention also provides a kind of method of controlling described rare-earth permanent magnet motor, may further comprise the steps:
When first rare-earth permanent magnet motor being installed, detect current supply power voltage, select the induced potential corresponding with described supply power voltage;
Select and connect the leading-out terminal of correspondence by described induced potential.
Preferably, also comprise:
Whether monitoring supply power voltage and current induced potential mate, if do not match, whether the difference of then judging supply power voltage and current induced potential greater than the difference of supply power voltage and adjacent gear induced potential, if then select and connect the leading-out terminal of the induced potential correspondence of adjacent gear; If not, then remain unchanged.
Compared with prior art, the present invention has the following advantages:
Rare-earth permanent magnet motor provided by the invention is provided with a plurality of leading-out terminals at every phase stator winding, and the number of turn difference of the different corresponding stator winding of leading-out terminal when the permanent-magnet electric machine rotor rotates, will produce different induced potentials on stator winding like this.Therefore, can bring in and make rare-earth permanent magnet motor adapt to different supply power voltages by connecting different outlets.Like this, when supply power voltage changes, can make the variation of rare-earth permanent magnet motor adaptation power supply voltage, induced potential and supply power voltage always are complementary, thereby improve the power factor of rare-earth permanent magnet motor.
Description of drawings
Fig. 1 be the load of prior art middle rare earth permanent magnet motor when being rated power 1/3 power factor and the graph of relation of supply power voltage;
Fig. 2 is rare-earth permanent magnet motor embodiment one schematic diagram provided by the invention;
Fig. 3 is rare-earth permanent magnet motor embodiment two schematic diagrames provided by the invention;
Fig. 4 is rare-earth permanent magnet motor embodiment three schematic diagrames provided by the invention;
Fig. 5 be middle rare earth permanent magnet motor of the present invention load when being rated power 1/3 power factor and the graph of relation of supply power voltage;
Fig. 6 is control method embodiment one flow chart of rare-earth permanent magnet motor provided by the invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Because whether the induced potential and the supply power voltage of rare-earth permanent magnet motor mate, the power factor when seriously influencing this motor operation, therefore, the present invention adapts to extraneous supply power voltage by the induced potential of regulating rare-earth permanent magnet motor.
Rare-earth permanent magnet motor embodiment one:
Referring to Fig. 2, this figure is rare-earth permanent magnet motor embodiment one schematic diagram provided by the invention.
The rare-earth permanent magnet motor that present embodiment provides comprises the threephase stator winding, is respectively A phase stator winding, B phase stator winding and C stator winding mutually.Every phase stator winding in the described threephase stator winding has at least three leading-out terminals, the corresponding different induced potential of connection that leading-out terminal is different.
Having five leading-out terminals with each stator winding below is that example describes.As shown in Figure 2, five leading-out terminals having of A phase stator winding 201 are respectively A, X1, X2, X3 and X4; Five leading-out terminals that B phase stator winding has are respectively B, Y1, Y2, Y3 and Y4; Five leading-out terminals that C phase stator winding has are respectively C, Z1, Z2, Z3 and Z4.
According to the operation principle of motor, the threephase stator winding is symmetrical, and therefore, the coil turn of A-X1, B-Y1 and C-Z1 correspondence is identical, and other do not repeat them here by that analogy.Be that example describes with A phase stator winding below.Be understandable that, when power supply is added in which leading-out terminal of A phase stator winding, be added in B phase stator winding and the C leading-out terminal of stator winding correspondence mutually too.
Stator winding shown in Figure 2 can corresponding 4 gears voltage, corresponding leading-out terminal combination is respectively A-X1, A-X2, A-X3, A-X4.
For example, with U
NThe rated voltage of expression rare-earth permanent magnet motor, U
N380V, 660V or 1140V or the like can be, the model of rare-earth permanent magnet motor can be selected according to the workplace.
When power supply is added in A-X1, the B-Y1 of threephase stator winding and C-Z1 and goes up, suppose that the induced potential of correspondence is 96%U
N, then Dui Ying supply power voltage can be from being lower than 94%U
NTo 98%U
NWhen power supply was added in A-X2, the B-Y2 of threephase stator winding and C-Z2 and goes up, corresponding induced potential was U
N, then Dui Ying supply power voltage can be (98%～102%) U
NCorresponding supply power voltage is U
NWhen power supply was added in A-X3, the B-Y3 of threephase stator winding and C-Z3 and goes up, corresponding induced potential was 104%U
N, then Dui Ying supply power voltage can be (102%～106%) U
NCorresponding supply power voltage is 104%U
NWhen power supply was added in A-X4, the B-Y4 of threephase stator winding and C-Z4 and goes up, corresponding induced potential was 108%U
N, then Dui Ying supply power voltage is greater than 106%U
NCorresponding supply power voltage is 108%U
N
Need to prove, the gear of the supply power voltage of rare-earth permanent magnet motor can be selected different gears according to actual needs, the number of gear also can be set as required, for example, every phase stator winding can be provided with three leading-out terminals, four leading-out terminals, five leading-out terminals or six leading-out terminals or the like.
The difference that the difference of leading-out terminal connects pairing induced potential and motor rated voltage is k (2～6) % of rated voltage; Wherein k is the number of described tap.
Rare-earth permanent magnet motor provided by the invention is provided with a plurality of leading-out terminals at every phase stator winding, and the number of turn difference of the different corresponding stator winding of leading-out terminal when the permanent-magnet electric machine rotor rotates, will produce different induced potentials on stator winding like this.Therefore, can bring in and make rare-earth permanent magnet motor adapt to different supply power voltages by connecting different outlets.Like this, when supply power voltage changes, can make the variation of rare-earth permanent magnet motor adaptation power supply voltage, the induced potential and the supply power voltage of rare-earth permanent magnet motor are complementary, and then improve the power factor of rare-earth permanent magnet motor.
Rare-earth permanent magnet motor embodiment two:
Referring to Fig. 3, this figure is rare-earth permanent magnet motor embodiment two schematic diagrames provided by the invention.
The stator winding of general magneto all is to adopt the Y-connection mode.
The rare-earth permanent magnet motor that present embodiment provides, described leading-out terminal is drawn from the head end of every phase stator winding; The end of the described threephase stator winding formation neutral point that is connected together; Power line connects the corresponding different induced potential of the different leading-out terminal of stator winding head end.
Having four leading-out terminals with every phase stator winding below is that example describes.
As shown in Figure 3, the end of every phase stator winding links together and constitutes neutral point N.Like this, neutral point can not need the end of stator winding to be drawn out to the terminal box of electric machine casing outside at the inner short circuit of electric machine casing again.
Four leading-out terminals of A phase phase stator winding are respectively: A, A1, A2 and A3; Four leading-out terminals of B phase phase stator winding are respectively: B, B1, B2 and B3; Four leading-out terminals of C phase phase stator winding are respectively: C, C1, C2 and C3.
Power line can obtain different induced potentials by connecting different leading-out terminals, and then corresponding different supply power voltages.
For example, power line can connect A, B and the C of threephase stator winding, and at this moment, the coil turn of corresponding winding is maximum, therefore, corresponding induced potential maximum, corresponding supply power voltage is also maximum.By that analogy, when power line connected A3, the B3 of threephase stator winding and C3, the coil turn of corresponding winding was minimum, and induced potential is also minimum, and corresponding supply power voltage is also minimum.
The leading-out terminal of the stator winding of the rare-earth permanent magnet motor that present embodiment provides is arranged on head end, connects the supply power voltage that different leading-out terminals just can change correspondence by regulating power line.Like this, can the end of stator winding be joined together to form neutral point, not be used in the connected mode that the electric machine casing outside is regulated neutral point again at motor internal.With near tap setting Fig. 2 neutral point is compared, its advantage is that lead-out wire is less.For example under the situation that all possesses the fourth gear pressure regulation, lead-out wire is reduced to 12 from 15 of Fig. 2.
Rare-earth permanent magnet motor embodiment three:
Continuation is referring to Fig. 2, and this figure is rare-earth permanent magnet motor embodiment three schematic diagrames provided by the invention.
The rare-earth permanent magnet motor that present embodiment provides, described leading-out terminal is drawn from the tail end of every phase stator winding; Power line connects the head end of described threephase stator winding, the different leading-out terminal of the stator winding tail end formation neutral point that is connected together.
As shown in Figure 2.Present embodiment is power line to be connected the stator winding head end maintain static, by the formation neutral point that links together of the different leading-out terminals with end.The leading-out terminal difference that neutral point connects, corresponding induced potential difference.
Power line connects head end A, B and the C of threephase stator winding.
Neutral point connects X, Y and the Z of different groups, just can constitute different induced potentials.The leading-out terminal of A phase phase stator winding tail end is X4, X3, X2 and X1, and the leading-out terminal of B phase phase stator winding tail end is Y4, Y3, Y2 and Y1, and the leading-out terminal of C phase phase stator winding tail end is Z4, Z3, Z2 and Z1.
When neutral point connected X4, Y4 and Z4, corresponding induced potential was maximum, and supply power voltage also is maximum.By that analogy, when neutral point connected X1, Y1 and Z1, corresponding induced potential was minimum, and supply power voltage also is minimum.
The rare-earth permanent magnet motor that present embodiment provides, the connected mode of power line immobilizes, and the terminal leading-out terminal of threephase stator winding is guided to outside, brings in the formation neutral point by connecting different outlets, thereby itself and supply power voltage are complementary.
Rare-earth permanent magnet motor embodiment four:
Referring to Fig. 4, this figure is rare-earth permanent magnet motor embodiment five schematic diagrames provided by the invention.
The leading-out terminal of the rare-earth permanent magnet motor that present embodiment provides is drawn respectively from the head and the tail two ends of every phase stator winding; The leading-out terminal of stator winding head end connects power line, and the leading-out terminal of tail end connects neutral point.
As shown in Figure 4, the leading-out terminal of the head end of A phase phase stator winding is A1 and A2, and terminal leading-out terminal is X1 and X2; The leading-out terminal of the head end of B phase phase stator winding is B1 and B2, and terminal leading-out terminal is Y1 and Y2; The leading-out terminal of the head end of C phase phase stator winding is C1 and C2, and terminal leading-out terminal is Z1 and Z2.
Power line connects the leading-out terminal of the head end of every phase stator winding, and neutral point connects the leading-out terminal of the end of every phase stator winding.Like this, both fixing connected modes of neutral point is brought in the change induced potential by the outlet of regulating the head end that power line connects; Connected mode that also can the fixed power source line is brought in the change induced potential by the outlet of regulating the end that neutral point connects.Certainly, also can not only regulate the power line connected mode but also change the neutral point connected mode and regulated induced potential.
Stator winding shown in Figure 4 can corresponding 4 gears voltage, corresponding leading-out terminal combination is A1-X1, A1-X2, A2-X1 and A2-X2 respectively.
For example, the terminals that power line connects threephase stator winding head end be respectively A1, B1 and C1 constant, neutral point can connect leading-out terminal X1, Y1 and the Z1 of the end of threephase stator winding, the induced potential of corresponding like this maximum; Neutral point also can connect leading-out terminal X2, Y2 and the Z2 of the end of threephase stator winding, corresponding less like this induced potential.The terminals that power line connects threephase stator winding head end be respectively A2, B2 and C2 constant, neutral point can connect leading-out terminal X2, Y2 and the Z2 of the end of threephase stator winding, the induced potential of corresponding like this minimum.
Describe beneficial effect of the present invention in detail below in conjunction with accompanying drawing 5.
Referring to Fig. 5, this figure is the supply power voltage and the power factor curve figure of the rare-earth permanent magnet motor that provides of the embodiment of the invention.
The rare-earth permanent magnet motor of the fourth gear pressure regulation that the embodiment of the invention provides (design load of fourth gear voltage is respectively 365V, 380V, 395V, 410V), when load is rated power 1/3, obtain power factor as shown in Figure 6 with change in voltage by actual measurement.
The curve with the solid curve representation of black of the top among Fig. 5 is the power factor of surveying in the present embodiment curve with change in voltage.From this curve as can be seen, when supply voltage at 350V when the 415V range, power factor is all greater than 0.96.This be because, when supply voltage is positioned at different range, correspondingly changed certainly, the different corresponding connected mode that changes the leading-out terminal of stator winding according to supply power voltage in the process of test always is complementary the induced potential of magneto and supply voltage.
The curve of representing with imaginary curve of below among Fig. 5 is under the single voltage condition of conventional permanent magnet motor actual measurement, the curve that power factor changes with supply power voltage.As can be seen, when supply power voltage was 380V, its power factor reached more than 0.96; In case and supply power voltage becomes 350V or 415V from 380V, power factor will be reduced to about 0.76 and 0.55.The thick imaginary curve of below among Fig. 5 is that the rare-earth permanent magnet motor of actual measurement is fixed under the single rated voltage (380V), and power factor is with the curve of change in voltage.
Can find out obviously that from figure the rare-earth permanent magnet motor that adopts the embodiment of the invention to provide can all can obtain very high power factor, thereby solve existing rare-earth permanent magnet motor to the supply power voltage sensitive issue in very wide power supply voltage range.
Based on above rare-earth permanent magnet motor, the embodiment of the invention also provides a kind of control method of rare-earth permanent magnet motor, is described in detail below in conjunction with accompanying drawing.
Referring to Fig. 6, this figure is control method embodiment one flow chart of rare-earth permanent magnet motor provided by the invention.
S601: when first rare-earth permanent magnet motor being installed, detect current supply power voltage, select the induced potential corresponding with described supply power voltage.
Because supply power voltage because various factors can exist unsteady, thereby do not match with the rated voltage of rare-earth permanent magnet motor, therefore, monitor the supply power voltage of rare-earth permanent magnet motor in real time, the induced potential of selecting the supply power voltage with monitoring to be complementary.
S602: select corresponding leading-out terminal by described induced potential.
In advance the logic corresponding relation of the combination of induced potential and leading-out terminal is made form, can select corresponding leading-out terminal by tabling look-up, thereby the stator winding of rare-earth permanent magnet motor is connected according to the leading-out terminal of selecting, supply power voltage and induced potential are complementary, the power factor of magneto is provided.
Need to prove, rare-earth permanent magnet motor also will be monitored supply power voltage in real time in running and whether current induced potential is complementary, if do not match, whether the difference of then judging supply power voltage and current induced potential is greater than the difference of supply power voltage and adjacent gear induced potential, if then select and connect the leading-out terminal of the induced potential correspondence of adjacent gear; If not, then remain unchanged.
The control method of the rare-earth permanent magnet motor that present embodiment provides has a plurality of leading-out terminals based on the threephase stator winding of rare-earth permanent magnet motor, the induced potential that different leading-out terminals is corresponding different.The supply power voltage of monitoring rare-earth permanent magnet motor, select the leading-out terminal corresponding by tabling look-up according to the supply power voltage that monitors with supply power voltage, power line is connected on the leading-out terminal of selection, the induced potential of supply power voltage and motor is complementary, thereby the power factor of rare-earth permanent magnet motor is provided.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (8)
1. rare-earth permanent magnet motor, comprise the threephase stator winding, it is characterized in that the leading-out terminal of the every phase stator winding in the described threephase stator winding is except the leading-out terminal at head and the tail two ends, have at least one tap, the difference of leading-out terminal connects corresponding different induced potentials.
2. rare-earth permanent magnet motor according to claim 1 is characterized in that, when described threephase stator winding was star connection, described tap was drawn from the head end position of every phase stator winding;
The tail end leading-out terminal of the described threephase stator winding formation neutral point that links together;
Power line connects the corresponding different induced potential of the different leading-out terminal of stator winding head end.
3. rare-earth permanent magnet motor according to claim 1 is characterized in that, when described threephase stator winding was star connection, described tap was drawn from the tail end position of every phase stator winding;
Power line connects the leading-out terminal of described threephase stator winding head end, the leading-out terminal of the stator winding tail end formation neutral point that is connected together, and the difference of the leading-out terminal of tail end connects.
4. rare-earth permanent magnet motor according to claim 1 is characterized in that, when described threephase stator winding was star connection, described tap was drawn respectively from the head and the tail two ends of every phase stator winding;
One group of leading-out terminal of described threephase stator winding head end connects power line; The remaining leading-out terminal of head end is vacant;
One group of leading-out terminal of described threephase stator winding tail end connects neutral point; The remaining leading-out terminal of tail end is vacant.
5. according to each described rare-earth permanent magnet motor of claim 1 to 4, it is characterized in that described tap is one, two, three or four.
6. rare-earth permanent magnet motor according to claim 5 is characterized in that, the difference that the difference of leading-out terminal connects pairing induced potential and motor rated voltage is k (2～6) % of rated voltage; Wherein k is the number of described tap.
7. a method of controlling the described rare-earth permanent magnet motor of claim 1 is characterized in that, may further comprise the steps:
When first rare-earth permanent magnet motor being installed, detect current supply power voltage, select the induced potential corresponding with described supply power voltage;
Select and connect the leading-out terminal of correspondence by described induced potential.
8. method according to claim 1 is characterized in that, also comprises:
Whether monitoring supply power voltage and current induced potential mate, if do not match, whether the difference of then judging supply power voltage and current induced potential greater than the difference of supply power voltage and adjacent gear induced potential, if then select and connect the leading-out terminal of the induced potential correspondence of adjacent gear; If not, then remain unchanged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910262198A CN101741161A (en) | 2009-12-31 | 2009-12-31 | Rare earth permanent magnet motor and control method thereof |
| PCT/CN2010/074484 WO2011079601A1 (en) | 2009-12-31 | 2010-06-25 | Self-starting rare earth permanent magnet motor and control method thereof |
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| CN200910262198A CN101741161A (en) | 2009-12-31 | 2009-12-31 | Rare earth permanent magnet motor and control method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011079601A1 (en) * | 2009-12-31 | 2011-07-07 | 华北电力大学 | Self-starting rare earth permanent magnet motor and control method thereof |
| CN102315701A (en) * | 2010-06-29 | 2012-01-11 | 比亚迪股份有限公司 | Permanent motor stator and wiring method of windings thereof |
| CN102332766A (en) * | 2010-06-25 | 2012-01-25 | 法雷奥电机控制系统公司 | The alternating current motor of the mixing electric equipment that is used to supply power and charges |
| CN107591923A (en) * | 2016-07-07 | 2018-01-16 | 张世兴 | A kind of Variable power motor and its intelligent controller |
| CN109067294A (en) * | 2018-08-29 | 2018-12-21 | 珠海凌达压缩机有限公司 | Output-adjustable motor, control method thereof, compressor and air conditioner |
| CN111030549A (en) * | 2020-01-08 | 2020-04-17 | 克拉玛依市博瑞科技发展有限公司 | Permanent magnet motor dragging reactive feedback integrated device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2415533Y (en) * | 2000-04-05 | 2001-01-17 | 陈贤珍 | Brushless permanent-magnet DC motor stator winding for flexible shifting |
| CN200987129Y (en) * | 2006-11-01 | 2007-12-05 | 景德镇市景德电机有限公司 | High-reliability multi-power energy-saving electric machine for oilfield |
| CN101741161A (en) * | 2009-12-31 | 2010-06-16 | 华北电力大学 | Rare earth permanent magnet motor and control method thereof |
-
2009
- 2009-12-31 CN CN200910262198A patent/CN101741161A/en active Pending
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2010
- 2010-06-25 WO PCT/CN2010/074484 patent/WO2011079601A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011079601A1 (en) * | 2009-12-31 | 2011-07-07 | 华北电力大学 | Self-starting rare earth permanent magnet motor and control method thereof |
| CN102332766A (en) * | 2010-06-25 | 2012-01-25 | 法雷奥电机控制系统公司 | The alternating current motor of the mixing electric equipment that is used to supply power and charges |
| CN102332766B (en) * | 2010-06-25 | 2016-01-13 | 法雷奥电机控制系统公司 | For the alternating current motor of mixing electric equipment of powering and charge |
| CN102315701A (en) * | 2010-06-29 | 2012-01-11 | 比亚迪股份有限公司 | Permanent motor stator and wiring method of windings thereof |
| CN102315701B (en) * | 2010-06-29 | 2013-08-07 | 比亚迪股份有限公司 | Permanent motor stator and wiring method of windings thereof |
| CN107591923A (en) * | 2016-07-07 | 2018-01-16 | 张世兴 | A kind of Variable power motor and its intelligent controller |
| CN109067294A (en) * | 2018-08-29 | 2018-12-21 | 珠海凌达压缩机有限公司 | Output-adjustable motor, control method thereof, compressor and air conditioner |
| CN111030549A (en) * | 2020-01-08 | 2020-04-17 | 克拉玛依市博瑞科技发展有限公司 | Permanent magnet motor dragging reactive feedback integrated device |
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| WO2011079601A1 (en) | 2011-07-07 |
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