CN110311413A - It is a kind of suitable for multiple-variable flow device driving Multiple coil synchronous motor to system - Google Patents
It is a kind of suitable for multiple-variable flow device driving Multiple coil synchronous motor to system Download PDFInfo
- Publication number
- CN110311413A CN110311413A CN201910670167.1A CN201910670167A CN110311413A CN 110311413 A CN110311413 A CN 110311413A CN 201910670167 A CN201910670167 A CN 201910670167A CN 110311413 A CN110311413 A CN 110311413A
- Authority
- CN
- China
- Prior art keywords
- synchronous motor
- winding
- multiple coil
- driving
- phase
- 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
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 193
- 238000004804 winding Methods 0.000 claims abstract description 280
- 230000005611 electricity Effects 0.000 claims abstract description 29
- 238000005259 measurement Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 239000004020 conductor Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000008450 motivation Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- H02J3/382—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K47/00—Dynamo-electric converters
- H02K47/18—AC/AC converters
Abstract
The invention proposes a kind of Multiple coil synchronous motors suitable for the driving of multiple-variable flow device to system, comprising: generation of electricity by new energy field, Multiple coil synchronous motor are to, local load and power grid；Multiple coil synchronous motor is constituted to by Multiple coil synchronous motor and synchronous generator, and the rotor of Multiple coil synchronous motor is connected with the rotor coaxial of synchronous generator, and the capacity, revolving speed of the two match；Generation of electricity by new energy field generally comprises multiple driving powers, and the stator side of Multiple coil synchronous motor is respectively connected to multiple driving powers；Each driving power includes current transformer, and each current transformer is independently-powered for every set winding of Multiple coil synchronous motor.System of the invention can be significantly reduced equipment cost and reduce switching loss, circulation problem when improving system overall operation reliability, be suitable for high-power applications occasion, and eliminating multiple-variable flow device parallel drive motor.
Description
Technical field
The invention belongs to New-energy power systems and motor application technical field, more particularly to one kind to be suitable for multiple-variable flow device
The Multiple coil synchronous motor of driving is to system.
Background technique
With the extensive use of micro-capacitance sensor and distributed generation technology, existed with wind energy, solar energy etc. for the new energy of representative
Shared ratio gradually increases in electric system, and superelevation accounting new-energy grid-connected will become the important of China's Future New Energy Source power grid
Structure.The characteristics of the electric system that high proportion new energy accesses under background gradually shows low inertia, low resistance, and this is to electricity
The stable operation of Force system brings adverse effect.Synchronous motor is for not to system (or making new energy Synchronous Motor System)
Carry out the new configuration mode of one kind of the new energy access power grid of superelevation accounting New-energy power system proposition, synchronous motor is to system
It is made of two synchronous motors, the mechanical rotating shaft of two synchronous motors is connected with each other, and new energy synchronizes electricity by current transformer driving
Motivation, synchronous motor drag synchronous generator by mechanical rotating shaft again, and synchronous generator generates electricity and realizes grid-connected.Due to synchronization
The inertia of motor, damping characteristic and mechanical isolation effect, synchronous motor is to the access of system to the voltage of electric system, frequency
Stable and Fault Isolation etc. has good castering action, and has been proved above-mentioned effect by emulation and experiment.
The existing literature of research in to(for) new energy synchronous machine is concentrated mainly on what new energy was driven by single current transformer
Mode, although they refer to the driving of multiple-variable flow device, there is no provide any to have to the circulation problem of multiple-variable flow device driving
The solution of effect.Fig. 1 is schematic diagram of the synchronous motor to system of single convertor driving, the synchronous motor of single convertor driving
To system by new energy 3, current transformer 4, controller 5, measuring device 6, synchronous motor to system 200, local load 7 and power grid 8
It collectively constitutes.Three-phase synchronous motor 201 and three-phase synchronous generator 202 being interconnected to constitute by mechanical rotating shaft in Fig. 1
For synchronous motor to system 200, three-phase synchronous generator 202 can access power grid 8 or connection load 7.Synchronous motor is to system 200
Driving power 100 be made of new energy 3, current transformer 4 and controller 5, the output of the three-phase alternating current of driving power 100 is directly accessed
Synchronous motor 201.Measuring device 6, the synergistic effect of controller 5 and current transformer 4 and control are so that the electric energy that new energy 3 generates
Synchronous motor can be driven to be incorporated into the power networks system and making it stable.When the capacity of new energy 3 is larger, current transformer 4 also should
It is configured to corresponding capacity.
Since the access capacity of conventional new energy is usually larger, the mode for configuring single large capacity current transformer just shows one
The problem of series: the power grade of power device such as IGBT will lead to dramatically increasing for cost in such as increase current transformer, work as change
Complete off-grid for the new energy equipment being attached thereto etc. can be directly resulted in when flowing device failure, therefore new energy passes through individually greatly
The mode of capacity current transformer driving is uneconomic and reliability is lower.When in face of the new energy electric field of large capacity, use is changeable
Flowing device parallel technology can be more economical, reliable way.
Fig. 2 is schematic diagram of the synchronous motor of multiple-variable flow device parallel drive to system, the synchronization of multiple-variable flow device parallel drive
Motor is to system by generation of electricity by new energy field 400, synchronous motor to system 200, measuring device 611, local load 7 and 8 groups of power grid
At wherein generation of electricity by new energy field 400 is made of multiple driving powers 100, and driving power 100 is by new energy equipment 3 and base
This power electronic equipment unit 301 is constituted, and basic power electronic equipment 301 (or 302,303) is by controller 5, current transformer 4
Composition, exchange output 211,212 and 213 of each driving power 100 etc. access three-phase after being parallel to ac bus 214 respectively again
In synchronous motor 201.Measuring device 611 measures synchronous motor to the speed of rotor, location information in system in Fig. 2,
The information such as the voltage of grid entry point, the voltage of current information and synchronous motor source, electric current.Measuring device 611 send measured value
Into the controller 5 of each power electronic equipment, the switch of power device in control current transformer 4 is obtained by calculation in controller 5
Signal.Signal may be needed to get in touch with to reach synthetic operation between different controllers.
In such a way that current transformer is directly in parallel, although than the access of single large capacity current transformer mode in economy more
The advantageous reliability that can also increase system, but since conventional current transformer parallel connection is to exchange the direct parallel connection of side, when each change
Stream device exit voltage magnitude and phase do not be easy to cause the circulation between current transformer simultaneously, and system in case of a fault
Reactive circular power flow is larger.Circulation not only results in the reduction of system capacity transformation efficiency, also be easy to cause the off-grid of new energy equipment
And it is unfavorable for the stable operation of system.
Fig. 3 is the circulation schematic diagram under multiple-variable flow device parallel drive mode between each current transformer.Multiple current transformers in the figure
Exchange output 211,212 and 213 etc. exchange side bus directly parallel connection by way of access three-phase synchronous motor, wherein by
The generation of circulation between ac bus, such as circulation 220 and 221 are easy to cause in the difference of each current transformer output voltage.Arbitrarily
The unbalanced circulation that can all lead to circulation of the voltage output of two current transformers, the presence of circulation make through ac bus 214
Output power reduces, and there may be harmonic components, while the control algolithm under the driving method is complex.
Although there is research to attempt to inhibit circulation by the improvement of control algolithm, effect brought by these methods changes
It is apt to limited, the requirements at the higher level of the following high proportion new-energy grid-connected is not achieved.
Fig. 4 is traditional winding connection schematic diagram of the synchronous motor to the synchronous motor in system, and wye connection is that exchange is same
The stator winding of common a kind of connection type in step motor, three-phase synchronous motor and three-phase synchronous generator is using identical
Structure, and collectively formed respectively by winding ABC and winding XYZ, winding ABC constitutes a set of winding in stator of synchronous motor,
Winding XYZ constitutes a set of winding in stator of synchronous motor.
In fact, a set of winding ABC is also to be made of multiple small windings, Fig. 5 is synchronous motor to the synchronization in system
The conventional winding construction schematic diagram of motor, synchronous motor described above are made of system two three-phase ac synchronous motors, and two
Platform synchronous motor can use the motor of a variety of winding constructions, such as 12 slot, 2 electrode synchronization electromotor shown in fig. 5, the stator of motor
On embedded a set of three-phase windings.Wherein winding 311,312,313,314,315,316,317,318,319,320,321,322
It is successively embedded in 12 slots of stator respectively, the effective edge in corresponding each section of winding, four section 311 of winding, 312,317 Hes
318 collectively constitute the A phase winding of motor, wherein current direction is identical in the winding segments 311,312 at the composition end A+, the composition end A-
Current direction is also identical in winding segments 317,318, the current direction of the end A+ and A- winding be it is opposite, 311,312,317,318
Relationship is connected in series between four sections of windings.311 sections of head ends that can be used as A phase winding, connect winding segments 318, and winding segments 318 connect
Winding segments 312 are connect, end of the winding segments 317 as A phase winding is eventually connected to.Winding 313,314,319,320 forms motor
B phase winding, winding 315,316,321,322 forms the C phase winding of motor, and the winding of B phase and C phase constitutes consistent with A.
Winding 311,312,313,314,315,316 constitutes a pole of motor stator, and remaining winding constitutes an other pole,
The method for forming a pole of this motor stator is exactly to control the phase of the electric current of each winding segments, this again may be by
The control of power electronics is realized.The control method of the electric current of this winding make and each winding segments of synchronous motor, just mentions
Supplied it is a kind of using multiple small current transformers respectively to each winding segments power electric machine structure and control method.
In conclusion either single large capacity current transformer is directly accessed or multiple low capacity current transformers exchange and couple
Enter to be unfavorable in a manner of driving three-phase ac synchronous motor the operation of system high efficiency rate, high reliability.Therefore this is just needed
Not only from current transformer parallel way, it is also desirable to from electric machine structure ontology construct one kind take into account economy, reliability and
The winding construction of the efficient synchronous motor for the driving of multiple-variable flow device and corresponding system.
Bibliography:
[1] CN105244911A, the new energy electric power grid-connected system and stability control method of high permeability
[2]Wei S,Zhou Y,Li S,et al.A possible configuration with motor-
generator pair for renewable energy integration[J].CSEE Journal of Power and
Energy Systems,2017,3(1):93-100.
[3]Zhou Y,Xu G,Wei S,et al.Experiment Study on the Control Method of
Motor-Generator Pair System[J].IEEE Access,2018,6:925-936.
[4] CN105958543A, a kind of control, experiment and emulation mode promoting new-energy grid-connected stability
Summary of the invention
In view of the above-mentioned problems, the invention proposes a kind of Multiple coil synchronous motors suitable for the driving of multiple-variable flow device to being
System, a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device is to system, comprising: generation of electricity by new energy field, Multiple coil are synchronous
Motor is to, measuring device, local load and power grid；It is characterized by: the Multiple coil synchronous motor synchronizes electricity to by Multiple coil
Motivation and synchronous generator are constituted, and the rotor of the Multiple coil synchronous motor and the rotor coaxial of the synchronous generator connect
It connects, the capacity, revolving speed of the two match；The generation of electricity by new energy field includes multiple driving powers；The Multiple coil synchronizes electronic
The stator side of machine is respectively connected to multiple driving powers；Each driving power includes current transformer, and each described change
The every set winding for flowing the stator that device is the Multiple coil synchronous motor is independently-powered.
Further, the driving power further includes new energy equipment and controller.
Further, the measuring device is responsible for measuring the Multiple coil synchronous motor to the electric parameter of system and mechanical ginseng
Number.
Further, the mechanical parameter includes rotor revolving speed and the position of the Multiple coil synchronous motor pair, described
Electric parameter include the synchronous motor to system in the voltage of driving power side and grid entry point, electric current.
Further, the controller connects the current transformer and the measuring device, and the controller receives the measurement
The output of device measurement and current transformer sampling is as a result, and export the pwm signal being calculated by feedback control algorithm
To the signal port of the switching devices such as IGBT in the current transformer；The current transformer will by the pwm signal that controller gives
The direct current of the new energy equipment inputs or exchange Input transformation is exchange output, the exchange output of each current transformer
It is connected respectively in a set of winding of the stator of the Multiple coil synchronous motor.
Further, the stator side of the Multiple coil synchronous motor is disposed with more independent three-phase windings of set, every set winding
It is placed respectively according to certain spatial position on stator；Under three-phase alternating current source module, the Multiple coil synchronous motor
Each phase winding in every set winding of stator side arrangement is successively spaced 120 degree of electrical angles.
Further, the arrangement of every set winding be positioned radially, angularly place or two kinds of arrangements combination.
Further, the mode that is positioned radially is that every set winding is put along the radial direction of Multiple coil stator of synchronous motor magnet steel
It sets, the electromagnetic torque that each set winding generates can be overlapped mutually.
Further, the angular modes of emplacement is the tricks according to Multiple coil stator of synchronous motor side winding, difference set
Winding is successively spaced apart from each other fixed electrical angle and is placed in different stator slots, the three-phase alternating current that different driving powers generates
Electricity forms identical phase difference corresponding with winding internal electrical angle under the action of the controller.
Further, the tricks of the Multiple coil and current transformer quantity depend on the actual quantity of the new energy equipment
And demand, and total appearance of the capacity of the Multiple coil synchronous motor and the current transformer of the access new energy equipment
Amount matches.
Further, the new energy equipment can be the combination of Wind turbines, photovoltaic unit or the two.
The beneficial effects of the present invention are:
(1) driving method that multiple low capacity current transformers access jointly, compared to the side of single large capacity current transformer access
Formula can be significantly reduced equipment cost and reduce switching loss, be suitable for high-power applications occasion.
(2) existing synchronous motor is replaced with into Multiple coil synchronous motor to three-phase synchronous motor in system, may be implemented
The access operation of multiple-variable flow device, and each small current transformer above-mentioned is separately connected corresponding sub- winding, and it is in parallel to eliminate multiple-variable flow device
Circulation problem when driving motor.
(3) synchronous motor is allowed to have the system redundancy structure that system has using Multiple coil synchronous motor
There is higher reliability, when certain current transformer connecting with motor stator winding breaks down, can also be convenient for taking fault-tolerant control
System strategy, guarantees that system continues to run.
(4) multiwinding machine stator respectively covers winding only and has the coupling on magnetic field, can play effective mechanical isolation and make
With the circulation problem intrinsic with conventional inverter parallel drive is mitigated.
(5) more set windings are separately disposed on multiwinding machine stator, it is straight compared to conventional current transformer exchange side
Mode in parallel is connect, analysis and control method are simplified.
Detailed description of the invention
Fig. 1 is schematic diagram of the synchronous motor to system of the single convertor driving of the prior art；
Fig. 2 is schematic diagram of the synchronous motor to system of the multiple-variable flow device parallel drive of the prior art；
Circulation schematic diagram of the Fig. 3 between each current transformer under the multiple-variable flow device parallel drive mode of the prior art；
Fig. 4 is traditional winding connection schematic diagram of the synchronous motor to the synchronous motor in system of the prior art；
Fig. 5 is conventional winding construction schematic diagram of the synchronous motor to the synchronous motor in system of the prior art；
Fig. 6 is a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device of the invention to system schematic；
Fig. 7 is that a kind of Multiple coil synchronous motor driven suitable for multiple-variable flow device of the invention is same to the Multiple coil system
Walk the structural schematic diagram of the driving power of motor；
Fig. 8 a be it is of the invention it is a kind of suitable for the Multiple coil synchronous motor of multiple-variable flow device driving to the motor system around
The first frame mode schematic diagram of group；
Fig. 8 b be it is of the invention it is a kind of suitable for the Multiple coil synchronous motor of multiple-variable flow device driving to the motor system around
Second of frame mode schematic diagram of group；
Fig. 8 c be it is of the invention it is a kind of suitable for the Multiple coil synchronous motor of multiple-variable flow device driving to the motor system around
The third frame mode schematic diagram of group；
Fig. 8 d be it is of the invention it is a kind of suitable for the Multiple coil synchronous motor of multiple-variable flow device driving to the motor system around
4th kind of frame mode schematic diagram of group；
Fig. 9 is of the invention a kind of electronic to synchronizing system suitable for the Multiple coil synchronous motor of multiple-variable flow device driving
The stator winding detail view of machine.
Specific embodiment
The invention proposes a kind of Multiple coil synchronous motors suitable for the driving of multiple-variable flow device to system, below with reference to attached
Figure, is described in further detail technology contents of the invention.
Fig. 6 is the Multiple coil synchronous motor provided by the invention suitable for the driving of multiple-variable flow device to system schematic, this is more
Winding ac synchronous motor to system be by generation of electricity by new energy field 400, Multiple coil synchronous motor to 500, measuring device 601 and
7 composition of power grid 8 and local load.Multiple coil synchronous motor is to 500 by Multiple coil synchronous motor 511 and three-phase synchronous generator
512 compositions, Multiple coil synchronous motor 511 are connected with the rotor coaxial of three-phase synchronous generator 512, and wherein Multiple coil synchronizes electricity
Machine can be directly accessed power grid 8 and the local load 7 of connection to 500.
Generation of electricity by new energy field 400 includes multiple driving powers 100, the three-phase alternating current point that each driving power 100 exports
It Jie Ru not be in each set winding of 511 stator side of Multiple coil synchronous motor, as shown in Figure 7.Three-phase synchronous generator 512 can be with
7 connection of power grid 8 and local load.The generation of electricity by new energy field that plurality of driving power is constituted can be entire extensive new energy
Generating field is also possible to a part of generation of electricity by new energy field, i.e., the new energy of the new energy unit composition of a part of paired running
Generator unit.
Driving power 100 is made of the new energy equipments such as wind-powered electricity generation, photovoltaic 3, current transformer 4 and its controller 5, new energy
Generating equipment 3 drives Multiple coil synchronous motor 511 after accessing current transformer 4, and Multiple coil synchronous motor 511 passes through mechanical rotating shaft
Connection dragging three-phase synchronous generator 512 access power grid 8 or connection load 7.Measuring device 601 is responsible for measurement synchronous motor
To the electrical quantity of 512 grid entry point of 500 rotor parameter, the electrical quantity of driving power and synchronous generator, and by measurement result
The adjustment process for the system that participates in is sent into controller 5.
In Fig. 6, current transformer 4 and controller 5 matched with its form basic power electronic equipment unit, driving power
100 are made of new energy equipment 3, power electronic equipment unit, each control algolithm for covering power electronic equipment and effect etc.
It is essentially identical.Each driving power 100 may be regarded as independent driving power, these power supply units collectively constitute synchronous motor
Pair generation of electricity by new energy field 400, i.e. total driving power of the system.The output of each driving power 100 is independent three-phase
Alternating current can be directly accessed Multiple coil synchronous motor to 500 by ac bus 501,502,503 etc., and Multiple coil synchronizes electricity
Machine is designed as multiwinding machine to 500 Multiple coil synchronous motor 511.Controller 5 and measurement in each set power electronic equipment
Device 601 is separately connected, for obtain Multiple coil synchronous motor to the electrical quantity of rotor parameter, driving power in 500 and
The electrical quantity of 512 grid entry point of synchronous generator.Have between controller 5 and current transformer 4 and be bi-directionally connected, controller 5 is available
4 input side of current transformer, outlet side electrical quantity can also equally be referred to the signal being calculated by the feedback information of measuring device
Enable the operation for being assigned to 4 regulating system of current transformer.May also have the connection in communication between different controllers 5, for driving
Coordinated operation between power supply.
Measuring device 601 is responsible for measurement Multiple coil synchronous motor to 500 rotor parameter such as revolving speed, location parameter, drives
Voltage, the magnitude of current of 512 grid entry point of voltage, the magnitude of current and synchronous generator of dynamic source side.Notice that measuring device measures
Voltage, the current parameters arrived are output in controller 5 while the necessary informations such as frequency, power participation system can be calculated
It adjusts.Measuring device 601 is separately connected with controller 5 each in driving power 100, and measuring signal processing is calculated and is sent to control
In device 5 processed, it wherein also can integrate certain sampling functions in controller 5, the electrical quantity of driving power output end adopted
Sample has the measurement item so as to not need measuring device 601.
Multiple coil synchronous motor can pass through multiple 4 output multi-channel of current transformer electricity to the new energy equipment 3 in system
Source drive Multiple coil synchronous motor to 500, the tricks of the winding motivated in the stator of Multiple coil synchronous motor 511 at this time with
The quantity of driving power is identical.The winding tricks of Multiple coil synchronous motor 511 according to actual new energy access capacity and
Economy, control complexity etc. comprehensively consider, and the winding tricks of motor stator theoretically can be very much.
The controller 5 of measuring device 601 and different electrical power can integrate in a device, which can complete entirely
The calculating of the parameter measurement of system and each converter switches signal, the device and system hardware carry out two-way information exchange,
This mode can simplify the wiring and volume of peripheral control system, but have higher requirement to processor.When power supply number
When measuring few, in this way advantageously.When number of power sources is more, the operational capability of processor may be limited to
With the quantity of signal port.
Fig. 7 shows Multiple coil synchronous motor provided by the invention to the structure of the driving power in system.For convenient for saying
It is bright, three sets of windings are only shown, then generation of electricity by new energy field 400 in corresponding diagram 6 in figure.Generation of electricity by new energy field 400 may include multiple
Driving unit, the structure of each driving unit be it is identical, by power supply device 301, measuring device 601, current transformer
405, controller 504 and three-phase windings an、bn、cnIt collectively constitutes, therefore can be illustrated by taking a driving power as an example.Electric power
Feedway 301 is the energy source for driving Multiple coil synchronous motor pair, can be new energy equipment such as blower and light
Volt or direct current and AC power source etc..Power supply device 301 is directly accessed the input terminal of current transformer 405.Current transformer 405
Output is three-phase alternating current, and output three-phase is separately connected Multiple coil synchronous motor 511 by ac bus 441,442 and 443 and appoints
The three-phase of a set of winding.Both-way communication can be carried out between current transformer 405 and controller 504, current transformer 405 passes through control line
505 receive the switching signal of the power device of controller 504, and controller 504 obtains the defeated of current transformer 405 by signal wire 506
Enter to export electrical quantity relevant information.Between controller connection 507 that may be present for the communication between different controllers with
Realize the coordinated operation of driving power.The synchronous motor can fill system using the measurement of centralization as shown in Figure 6
It sets, measuring device can also be distributed in each power electronic equipment, two kinds of measurement methods obtain for control system
Electrically and mechanically parameter it is identical, only external structure has differences in form, in order to more intuitively illustrate, drives shown in Fig. 7
Dynamic power supply architecture is the schematic diagram using distributed measurement device.Measuring device 601 measures generator by measurement signal line 603
Voltage, the magnitude of current of a certain phase of 402 grid entry points, voltage, the magnitude of current of the equal measurement other phases of grid entry point of measurement signal line 605；It is logical
It crosses signal wire 602 and measures rotor speed of the Multiple coil synchronous motor to 500, rotor position information.Measuring device 601 passes through defeated
Measuring signal is sent to controller 504 by signal wire 604 out.
Multiple coil synchronous motor centering driving power shown in Fig. 7 has a characteristic that
1) current transformer 405 and controller 504 are the key that system operates normally, and current transformer is the converting unit of energy, and
Controller then play the role of control its electric energy normally convert.Since new energy has the characteristics that intermittent, fluctuation, it is easy to lead
The electric energy for causing power supply device 301 to supply multi-winding motor 511 fluctuates, and controller 504 can be sent out according to new energy
Adjustment is sent to the switching signal of power device in current transformer 405 in real time for the variation of electric energy power, while detecting the defeated of current transformer 405
It feeds back out, the output torque for controlling motor inhibits the fluctuation of generation of electricity by new energy, maintains system loading balance.Controller simultaneously
Should have conventional over-voltage and over-current detection, the defencive functions such as system mode abnormality detection.
2) different from steady-state operation, Multiple coil synchronous motor may need the switching of control strategy to 500 starting,
It can be directly initiated by new energy in start-up course or other backup power sources start, controller passes through measurement in start-up course
Device 601 obtains Multiple coil synchronous motor to 500 rotor speeds and location information, realizes the smooth starting of the electric system.
Multiple coil synchronous motor, which reaches synchronous motor in 500, to be completed this by the automatic inspection synchronization device of grid entry point after synchronous speed and is
That unites is grid-connected, and system enters steady-state operation later.
3) it respectively covers between winding and is independent from each other in Multiple coil synchronous motor 511, and may exist multiple independences
Neutral point, therefore direct connection that can not electrically between every set winding and other windings only has on magnetic field
Coupled relation.The winding of multi-winding motor can actually have three sets or three sets or more in Fig. 6, therefore this structure has
Universality.Respectively the effect of set winding is identical, formally sees all it is indirect parallel relationship, can individually be analyzed,
Therefore it is also convenient for the realization of control algolithm.
4) general not to be the sine wave of standard by what inversion directly generated due to using pulse modulation technology, therefore need
Certain filter circuit is added, can be L, LC or LCL filter circuit, therefore can include filter apparatus in current transformer 405.
System shown in fig. 6 is by generation of electricity by new energy field 400, Multiple coil synchronous motor to 500, relevant measuring device
601 and the Multiple coil synchronous motor for being suitable for the driving of multiple-variable flow device that collectively constitutes of local load 7 and power grid 8 to system, with
The collaboration of upper device is so that the system is in steady-state operation.The present invention will be traditional on the basis of existing synchronous motor is to system
Three-phase synchronous motor 201 replaces with Multiple coil synchronous motor 511, therefore can access multiple new energy simultaneously in source side
Current transformer 4, so that the mode directly in parallel instead of traditional multi-inverter exchange side, can be effectively avoided exchange parallel connection and bring
Circulation problem.And cover independent three-phase windings since multi-winding motor stator side is disposed with, between different windings only more
Only with the connection on magnetic field, preferable electrical isolation can be played the role of in new energy side.Driving synchronizes in this way
Motor is also more efficient compared with the direct exchange parallel drive of current transformer to system, operation is more reliable.
It is the first structure suitable for the synchronous motor of multiple-variable flow device driving to the machine winding system shown in Fig. 8 a
Schematic diagram.Multiple coil synchronous motor 511 shown in Fig. 8 a is 2 pole, 6 slot motor, is disposed with two set three in the slot of stator 9
Phase winding is successively wound with winding 411,412,413,414,415,416 in each slot on stator, the winding in each slot by
Stranded conductor composition, wherein winding a1 and a2 collectively constitutes winding 411.Wherein winding 411,414 constitutes the A phase winding of motor,
And winding 411 and 414 around to opposite.Similarly, winding 412 and 415 constitutes the B phase winding of motor, the structure of winding 413 and 416
At the C phase winding of motor, and the winding in stator 9 in relative position of each phase is constituted around to being opposite.
Rotor 10 is electrical excitation mode, and the coiling direction of winding is all the same, can select different pole according to actual needs
Logarithm.
Three-phase synchronous generator 512 still uses the winding construction of typical three phase alternating current motor, due to synchronous generator
Effect be power generation and it is grid-connected, the winding construction with existing traditional synchronous motor is identical, three-phase synchronous shown in Fig. 8 a
Generator 512 is 2 pole, 12 slot three-phase motor, and the winding in three groups of slots respectively constitutes U, V, W three-phase.
Multiple coil synchronous motor is to being a kind of most basic form in Fig. 8 a, i.e., have on stator of synchronous motor two sets around
Group is driven by two independent current sources.When using the arrangement, see that the arrangement of all windings and routine three are identical on the whole
The arrangement for walking machine winding is identical, and every set winding is placed according to the winding arrangement principle of three phase alternating current motor.Each set winding can be with
Along being positioned radially for magnetic steel of stator, the electromagnetic torque that double winding generates can be overlapped mutually.Wherein the winding of each phase all by
Two sets of identical sub- windings are constituted, if winding a1 and a2 are the double winding of A phase, the complete phase of the arrangement of double winding respectively
Together, current direction is all the same in conducting wire.It sees on the whole, winding integral arrangement principle is similar with conventional three-phase alternating-current motor,
But this mode double winding is that independently, each winding that covers respectively corresponds three-phase alternating-current supply input.
It is second suitable for the synchronous motor of multiple-variable flow device driving to the machine winding system shown by Fig. 8 b
Frame mode schematic diagram.Multiple coil synchronous motor 511 shown in Fig. 8 b is 2 pole, 6 slot motor, is disposed with two in the slot of stator 9
Three-phase windings are covered, are successively wound with winding 411,412,413,414,415,416 in each slot on stator, winding is led by multiply
Line coiling.Wherein winding 411,414 collectively forms the A phase winding of motor, and winding 411 and 414 around to opposite.Similarly,
Winding 412 and 415 constitutes the B phase winding of motor, and winding 413 and 416 constitutes the C phase winding of motor, and constitutes determining for each phase
Winding in son 9 in relative position is around to being opposite.
Rotor 10 is electrical excitation mode, and the coiling direction of winding is all the same, can select different pole according to actual needs
Logarithm.
Three-phase synchronous generator 512 still uses the winding construction of typical three phase alternating current motor, due to synchronous generator
Effect be power generation and it is grid-connected, the winding construction with existing traditional synchronous motor is identical, three-phase synchronous shown in Fig. 8 b
Generator 512 is 2 pole, 12 slot three-phase motor, and the winding in three groups of slots respectively constitutes U, V, W three-phase.
The working principle and structure of electric system shown in Fig. 8 b are similar with Fig. 8 a, and difference is embodied in Multiple coil and synchronizes electricity
The stator side of motivation 511 is disposed with 4 sets of three-phase windings a1, a2, a3 and a4, and four sets of windings are arranged in the same slot of motor
It is interior, along being positioned radially for magnetic steel of stator.The current direction being passed through in four sets of windings is all the same, each electromagnetic torque for covering winding and generating
It is superposed to total electromagnetic torque of Multiple coil synchronous motor 511.It is between each set winding independently, each set winding is right respectively
Answer the input of respective three-phase alternating-current supply.
It can theoretically be disposed with more set windings on the stator of Multiple coil synchronous motor 511, be not limited solely to Fig. 8 b
Shown in four sets of windings.Specific arrangement will be in view of the capacity of access power supply, the factors such as actual motion demand.
Be shown by Fig. 8 c suitable for multiple-variable flow device driving synchronous motor to the machine winding system the third
Frame mode schematic diagram.Multiple coil synchronous motor described in Fig. 8 c to 500 is sent out by Multiple coil synchronous motor 511 and three-phase synchronous
Motor 512 is constituted, and Multiple coil synchronous motor 511 shown in Fig. 8 c has more than the Multiple coil synchronous motor in Fig. 8 a and Fig. 8 b
More number of stator slots is only one form of them --- 2 pole, 12 slot motor shown in Fig. 8 c.Be disposed on its stator four sets of three-phases around
Group is successively wound with 411,412,413,414,415,416,417,418,419,420,421 and of winding in each slot on stator
422, wherein winding 411,412,417 and 418 collectively forms the A phase winding of motor, and winding 411 and 412 around to identical,
417 and 418 around to also identical, but these two pair winding is respective contrary.Similarly, 413,414,419 and 420 structure of winding
At the B phase winding of motor, the C phase winding of the composition motor of winding 415,416,421 and 422, and each phase of composition are on stator
The winding of relative position is around to being opposite.Stator winding arrangement shown in Fig. 8 c includes two kinds of arrangements, is with A phase
Example, winding a1, a2, a3 and a4 respectively correspond four sets of windings, neutron winding a1, a2 and a3, a4 be located at two it is different
In slot, two slots are along 30 degree of stator circumference interval electrical angle.Then phase in the respective arrangement principle of winding a1, a2 and a3, a4 and Fig. 8 b
Together, similarly the arrangement of other each phase windings also according to this principle.
It is right when using the arrangement in different slots since the arrangement of different set windings in space has differences
The three-phase alternating current for answering driving power to generate is also required to form identical phase difference corresponding with winding internal electrical angle.It is wherein each
Winding in slot can all be split, it can different set of winding be split into as needed, with following arrangement phase
It is corresponding.
More set three-phase windings can be disposed on the stator of Multiple coil synchronous motor 511, winding there can be following three kinds
Arrangement:
1, see on the whole, the arrangement of all windings and the arrangement of routine three-phase motor winding are identical, every set winding according to
The winding arrangement principle of three phase alternating current motor is placed.Each set winding being positioned radially along 9 magnet steel of stator, all set windings produce
Raw electromagnetic torque can be overlapped mutually；
2, respectively set winding is located in different slots, and successively apart from one another by fixed electrical angle.Winding can have it is symmetrical and
Asymmetric two types, if winding a1 is a set of winding of motor A phase in Fig. 8 c, a3 is the another set of winding of motor A phase,
Double winding is due in different slots, 60 degree of interval electrical angle when double winding is arranged symmetrically, 30 degree of interval electricity when asymmetric
The rule of angle, other each phase windings is identical.When using which simultaneously, the three-phase alternating current that two-way driving power generates also is needed
Form identical phase difference corresponding with winding internal electrical angle.
3, equally can in conjunction with above two mode, Fig. 8 c be exactly in the stator and meanwhile the above two mode of use arrange around
Group, this arrangement are the linear combination of above two mode, and angular and radial distribution side can be respectively adopted in each winding that covers
Formula.Combined result needs to combine specific application scenarios and index request.
It is the 4th kind suitable for the synchronous motor of multiple-variable flow device driving to the machine winding system shown by Fig. 8 d
Frame mode schematic diagram.Multiple coil synchronous motor described in Fig. 8 d to 500 is sent out by Multiple coil synchronous motor 511 and three-phase synchronous
Motor 512 is constituted, and Multiple coil synchronous motor 511 shown in Fig. 8 d has more more fixed than the Multiple coil synchronous motor in Fig. 8 c
Sub- winding tricks.It is similar with Fig. 8 c, the structure of 2 pole, 12 slot motor is still used for ease of description.Multiple coil is synchronous in Fig. 8 d
Eight sets of three-phase windings are disposed on motor stator, be successively wound in each slot on stator winding 411,412,413,414,
415,416,417,418,419,420,421 and 422, wherein winding 411,412,417 and 418 collectively form the A phase of motor around
Group, and winding 411 and 412 around to identical, 417 and 418 around to also identical, but these two pair winding is respective contrary.
Similarly, winding 413,414,419 and 420 constitutes the B phase winding of motor, and winding 415,416,421 and 422 constitutes the C of motor
Phase winding, and the winding in relative position on stator of each phase is constituted around to being opposite.
Stator winding arrangement shown in Fig. 8 d includes two kinds of arrangements, by taking A phase as an example, winding a1, a2, a3 and a4
411 four cover windings are constituted, winding a5, a6, a7 and a8 constitute 412 four cover windings.Wherein winding a1, a2, a3, a4 and
A5, a6, a7, a8 are located in two different slots, and two slots are along 30 degree of stator circumference interval electrical angle.Similarly other each phases around
The arrangement of group is also according to this principle.
The arrangement of winding can be considered as the expansion of winding arrangement quantity in Fig. 8 c in Fig. 8 d.Winding in Fig. 8 d can be with
There are more sets, the arrangement of winding can have three ways, such as following:
1, see on the whole, the arrangement of all windings and the arrangement of routine three-phase motor winding are identical, every set winding according to
The winding arrangement principle of three phase alternating current motor is placed.Each set winding being positioned radially along 9 magnet steel of stator, all set windings produce
Raw electromagnetic torque can be overlapped mutually；
2, respectively for set winding successively apart from one another by fixed electrical angle τ, the number of phases of motor is m.Winding can not have symmetrically and not
Symmetrical two types, when using symmetric winding, all windings are uniformly distributed on stator by identical electrical angle τ=2 π/m；It adopts
When with Unsymmetrical Winding, for every suit winding, 120 degree of each phase winding interval electrical angle, the same phase winding of difference set winding
Interval electrical angle is τ=π/m.Simultaneously use which when, two-way driving power generate three-phase alternating current be also required to be formed with
Winding internal electrical angle corresponds to identical phase difference.
3, equally winding can be arranged using above two mode simultaneously in the stator in conjunction with above two mode, this
Kind arrangement is the linear combination of above two mode, and angular and radial distribution mode can be respectively adopted in each winding that covers.
Combined result needs to combine specific application scenarios and index request.
Multiple coil synchronous motor shown in Fig. 8 d has the stator winding of Multiple coil synchronous motor in 500 following special
Point:
1) it is disposed with more set three-phase windings on the stator of Multiple coil synchronous motor 511, but should be noted that the quantity tool of winding
Body application should be taken into account the factors such as the manufacture level of practical electric field capacity demand, the realization of control strategy and industrial motor；
2) there are two types of the most basic arrangements of winding, it can take and radially outward be superimposed winding along stator 9, it can also edge
9 circumferencial direction of stator is regularly spaced certain angle and places winding.Each driving power when using the first arrangement
Phase is identical, and when taking second of arrangement, each driving power for covering winding is also required to be formed between winding arrangement
Every the corresponding phase difference of electrical angle.The first arrangement is simpler, and the requirement to driving power is lower, is easy to implement.
But winding quantity it is more when stator slot end can be made thicker；The utilization rate of slot can be improved in second of arrangement, but has
To the phase requirements of driving power, the complexity of control will increase.Therefore two kinds of arrangements need to consider specifically to use field
Scape and actual motor manufacturing are horizontal.Even can be in such a way that two kinds of arrangement principles combine, structure chart shown in Fig. 8 d is only
For the qualitative explanation of winding arrangement, such as the relative position corresponding second of winding a1 (a2/a3/a4) and a5 (a6/a7/a8)
Arrangement is planted, winding a1, a2, a3, a4 (a5, a6, a7, a8) layered arrangement in same slot corresponds to the first arrangement.
When the winding quantity of motor increases, can suitably expand according to the principle.
3) general winding distribution angularly is all uniform, i.e., every suit winding is distributed relative to the axle center of rotor
It is the same, but is also likely to be present non-uniform distributed architecture, but these windings corresponds to the control of current transformer will become non-
Often complexity just can guarantee the steady running of motor.
4) it for different winding arrangements, only has differences in form, the arrangement and biography of substantially each phase winding
The arrangement for machine winding of uniting is similar.Each section of winding constitutes each phase winding according to certain cascaded structure in each set winding, wherein respectively
Phase winding is drawn first and end respectively convenient for external connection and control according to current direction, this is for industrial motor manufacturing
And be easy to implement.
5) every set three-phase windings of Multiple coil synchronous motor 511 can use wye connection or delta connection, use
When wye connection, every set winding has different neutral points, and wherein neutral point N, which can connect, to be not connected to, general normal
It is not connected to when operation, in order to the analysis and control of system；Such as it can connect in fault-tolerant processing.
Fig. 9 is Multiple coil synchronous motor proposed by the present invention to the motor stator winding detail view in system.With Fig. 8 a-
Based on the stator winding structure of various Multiple coil synchronous motors described in 8d, Fig. 9 is that a kind of part of structure of C phase winding is put
Big figure.Wherein C+ winding is made of stranded conductor, and the stranded conductor can according to need fractionation.
When using the first arrangement, winding divides in the way of similar a1, a2 and a3 outward along magnetic steel of stator diameter
Layer arrangement, then a1, a2 and a3 are the different set windings of the same phase of motor, and a4 and a5 is that the other stocks for covering winding corresponding with a3 are led
Line, and the identical phase current with a3 circulation.Similarly, the effect of other conducting wires is identical in slot.
When using second of arrangement, the coils such as a1, a2, a3 can partly or entirely form certain of multiwinding machine
One phase winding, the coils such as a4, a5 separate certain electrical angle τ and place, that is, are placed in the other slots of stator, correspond to its of phase at this time
Its set winding equally should be according to the apart windings of the electrical angle τ of aforementioned claim in other slots.The son of same phase is allowed in this way
Winding is distributed in different stator slots.
When using second of arrangement, winding can have symmetrical and asymmetric two types, when using symmetric winding,
All windings are uniformly distributed on stator by identical electrical angle τ=2 π/m；When using Unsymmetrical Winding, for every suit around
Group, each phase winding interval τ=π/m degree electrical angle, the same phase winding of different set windings should be spaced 60 if for six-phase motor
Electrical angle is spent, the rule of other each phase windings is identical.When using which simultaneously, the three-phase alternating current of different driving power generations
Electricity is also required to form phase difference corresponding with winding internal electrical angle τ.
Each slot is made of stranded conductor in the multi-winding motor stator winding of Multiple coil synchronous motor centering, due to leading
Line can be split, therefore there are two kinds of basic arrangements for different set windings, but should be noted that both arrangement sheets
In matter or the difference arranged radially and circumferentially of winding in stator slot.The first arrangement is in three-phase motor winding
On the basis of arrangement principle, the different set windings of corresponding phase are placed in same groove, and along the arranged radially of magnetic steel of stator；The
Two kinds of arrangements are that the winding of corresponding phase is circumferentially disposed, i.e., spatially separate fixed electrical angle, this mode
So that the different set windings of corresponding phase are placed in different slots.As if a4 and a5 winding and winding a3 are placed in different slots,
Then constitute second of arrangement.Requirement of two kinds of winding arrangements to driving power phase is also different.The cloth of winding
The mode of setting selects to need to combine specific usage scenario and actual motor manufacturing horizontal.
Above embodiments are merely preferred embodiments of the present invention, but protection scope of the present invention is not limited to
This, anyone skilled in the art in the technical scope disclosed by the present invention, the variation that can readily occur in or replaces
It changes, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claim
Subject to enclosing.
Claims (11)
1. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device is to system, comprising: generation of electricity by new energy field, Multiple coil are same
Motor is walked to, measuring device, local load and power grid；It is characterized by: the Multiple coil synchronous motor is synchronized to by Multiple coil
Motor and synchronous generator are constituted, and the rotor of the Multiple coil synchronous motor and the rotor coaxial of the synchronous generator connect
It connects, the capacity, revolving speed of the two match；The generation of electricity by new energy field includes multiple driving powers；The Multiple coil synchronizes electronic
The stator side of machine is respectively connected to multiple driving powers；Each driving power includes current transformer, and each described change
The every set winding for flowing the stator that device is the Multiple coil synchronous motor is independently-powered.
2. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device according to claim 1 is to system, feature
Be: the driving power further includes new energy equipment and controller.
3. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device according to claim 1 is to system, feature
Be: the measuring device is responsible for measuring the Multiple coil synchronous motor to the electric parameter and mechanical parameter of system.
4. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device according to claim 3 is to system, feature
Be: the mechanical parameter includes revolving speed and the position of the rotor of the Multiple coil synchronous motor pair, the electric parameter
Including the synchronous motor to system in driving power source and the voltage of grid entry point, electric current.
5. according to a kind of described in any item Multiple coil synchronous motors suitable for the driving of multiple-variable flow device of claim 2-4 to being
System, it is characterised in that: the controller connects the current transformer and the measuring device, and the controller receives the measurement dress
The output of measurement and current transformer sampling is set as a result, and being output to the pwm signal being calculated by feedback control algorithm
The signal port of the switching devices such as the IGBT in the current transformer；The pwm signal that the current transformer is given by controller is by institute
Direct current input or the exchange Input transformation for stating new energy equipment are exchange output, the exchange output point of each current transformer
It is not connected in a set of winding of the stator of the Multiple coil synchronous motor.
6. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device according to claim 1 is to system, feature
Be: the stator side of the Multiple coil synchronous motor is disposed with more independent windings of set, and every set winding is pressed respectively on stator
It is placed according to certain spatial position；Under three-phase alternating current source module, Multiple coil stator of synchronous motor side is arranged every
Three-phase windings in set winding are successively spaced 120 degree of electrical angles.
7. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device according to claim 6 is to system, feature
Be, the arrangement of every set winding be positioned radially, angularly place or two kinds of arrangements combination.
8. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device according to claim 7 is to system, feature
It is, the mode that is positioned radially is every set winding being positioned radially along Multiple coil stator of synchronous motor magnet steel, each set
The electromagnetic torque that winding generates can be overlapped mutually.
9. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device according to claim 7 is to system, feature
It is, the angular modes of emplacement is the tricks according to Multiple coil stator of synchronous motor side winding, and difference covers winding successively phase
Mutually the fixed electrical angle in interval is placed in different stator slots, and the three-phase alternating current that different driving powers generates is in the control
Identical phase difference corresponding with winding internal electrical angle is formed under the action of device processed.
10. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device according to claim 2 is to system, feature
Be: the tricks and current transformer quantity of the Multiple coil depend on the actual quantity and demand of the new energy equipment, and
The total capacity phase of the current transformer of the new energy equipment of the capacity and access of the Multiple coil synchronous motor
Match.
11. a kind of Multiple coil synchronous motor suitable for the driving of multiple-variable flow device according to claim 2 is to system, feature
Be: the new energy equipment can be the combination of Wind turbines, photovoltaic unit or the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670167.1A CN110311413B (en) | 2019-07-24 | 2019-07-24 | Multi-winding synchronous motor pair system suitable for multi-converter driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670167.1A CN110311413B (en) | 2019-07-24 | 2019-07-24 | Multi-winding synchronous motor pair system suitable for multi-converter driving |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110311413A true CN110311413A (en) | 2019-10-08 |
| CN110311413B CN110311413B (en) | 2020-11-24 |
Family
ID=68080700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910670167.1A Active CN110311413B (en) | 2019-07-24 | 2019-07-24 | Multi-winding synchronous motor pair system suitable for multi-converter driving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110311413B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366754A (en) * | 2021-01-13 | 2021-02-12 | 天津民昌科技有限公司 | Multi-winding motor self-power-generation micro-grid system for oil pumping unit |
| WO2022064510A1 (en) * | 2020-09-26 | 2022-03-31 | Tvs Motor Company Limited | An electrical machine of a vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882231A (en) * | 2012-09-21 | 2013-01-16 | 上海交通大学 | Loop current control method for current transformer multi-unit parallel connection system |
| KR20150011301A (en) * | 2014-03-07 | 2015-01-30 | 한국해양대학교 산학협력단 | Power control device for ship |
| CN106301102A (en) * | 2016-09-09 | 2017-01-04 | 湖南大学 | A kind of multiphase permanent magnet synchronous motor drive system and control method thereof |
| US20170018928A1 (en) * | 2014-03-11 | 2017-01-19 | Vamell M. Castor | Combined renewable energy and compressed gas energy storage and generator microgrid system using reciprocating piezoelectric generators |
| CN207559893U (en) * | 2017-09-30 | 2018-06-29 | 哈尔滨博实通利动力装备股份有限公司 | A kind of Multiple coil wide range speed control permanent magnet type synchronous motor system |
| CN108414831A (en) * | 2018-02-09 | 2018-08-17 | 华北电力大学 | Study the experimental provision and method of high permeability New-energy power system |
-
2019
- 2019-07-24 CN CN201910670167.1A patent/CN110311413B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882231A (en) * | 2012-09-21 | 2013-01-16 | 上海交通大学 | Loop current control method for current transformer multi-unit parallel connection system |
| KR20150011301A (en) * | 2014-03-07 | 2015-01-30 | 한국해양대학교 산학협력단 | Power control device for ship |
| US20170018928A1 (en) * | 2014-03-11 | 2017-01-19 | Vamell M. Castor | Combined renewable energy and compressed gas energy storage and generator microgrid system using reciprocating piezoelectric generators |
| CN106301102A (en) * | 2016-09-09 | 2017-01-04 | 湖南大学 | A kind of multiphase permanent magnet synchronous motor drive system and control method thereof |
| CN207559893U (en) * | 2017-09-30 | 2018-06-29 | 哈尔滨博实通利动力装备股份有限公司 | A kind of Multiple coil wide range speed control permanent magnet type synchronous motor system |
| CN108414831A (en) * | 2018-02-09 | 2018-08-17 | 华北电力大学 | Study the experimental provision and method of high permeability New-energy power system |
Non-Patent Citations (3)
| Title |
|---|
| 周莹坤 卫思明，许国瑞，李 松，黄永章，: "电机串联新能源并网系统的控制方法", 《电工技术学报》 * |
| 李建林 , 高志刚 , 胡书举 , 付勋波 , 许洪华: "并联背靠背 PWM 变流器在直驱型风力发电系统的应用", 《电力系统自动化》 * |
| 许国瑞，尹忠东，刘鹏，周莹坤，卫思明，黄永章: "提升电力系统稳定性的新能源发电场同步", 《中国电力》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022064510A1 (en) * | 2020-09-26 | 2022-03-31 | Tvs Motor Company Limited | An electrical machine of a vehicle |
| CN112366754A (en) * | 2021-01-13 | 2021-02-12 | 天津民昌科技有限公司 | Multi-winding motor self-power-generation micro-grid system for oil pumping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110311413B (en) | 2020-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yuan et al. | A transformer-less high-power converter for large permanent magnet wind generator systems | |
| Basak et al. | Dual stator winding induction machine: Problems, progress, and future scope | |
| CN105576921B (en) | Dynamically reconfigurable motor, electric system and motor dynamics reconstructing method | |
| CN107887928B (en) | Control method and device of energy storage system | |
| JP6289798B2 (en) | Wind turbine | |
| US10486537B2 (en) | Power generating systems having synchronous generator multiplex windings and multilevel inverters | |
| CN201388064Y (en) | Megawatt variable-speed wind turbine generator system employing polyphase generators and multilevel convertors | |
| US20130301327A1 (en) | System and method of parallel converter current sharing | |
| CN205670685U (en) | Equipment for transmission electric power | |
| CN101640423A (en) | Generator system for wind power generation and variable speed control method | |
| CN101635466A (en) | Megawatt-level variable-speed wind-power unit adopting multiphase generator and multilevel converter | |
| CN101404472A (en) | Low/medium voltage and high voltage motor soft starter composed by three-phase commutation bridge | |
| WO2022037141A1 (en) | Wind power generation system | |
| CN106711992B (en) | Topological structure of permanent magnet direct current fan cluster system | |
| JP2017093287A (en) | Multiphase electrical machine and method of use | |
| CN110311413A (en) | It is a kind of suitable for multiple-variable flow device driving Multiple coil synchronous motor to system | |
| CN102497038A (en) | Multi-winding double-salient-pole generator and output transformation and control device | |
| CN203056806U (en) | Brushless double shaft excitation three-phase synchronous generator | |
| US11355934B2 (en) | Dual transformer turbine | |
| CN100463328C (en) | Rotating electromagnetic energy transformation device | |
| CN202395542U (en) | Multi-winding doubly salient generator and output conversion and control device | |
| CN106602767A (en) | Nuclear power plant control rod driving mechanism power generator and stator winding thereof | |
| CN102931796A (en) | Direct current/ alternating current (DC/AC) self-coupling inversion generator | |
| CN201113872Y (en) | Switch reluctance motor per phase winding coil grouping drive apparatus | |
| CN102412686A (en) | Brushless dual-axis excitation three-phase synchronous generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211213 Address after: 102299 No. 8030, 8th floor, building 16, yard 37, Chaoqian Road, Science Park, Changping District, Beijing Patentee after: Beijing Huadian ruituo Technology Co.,Ltd. Address before: 102206 No. 2 Nong Road, Zhu Xin Zhuang, Beijing, Changping District Patentee before: NORTH CHINA ELECTRIC POWER University |