CN103807095A - Wind power generation system of independent phase control structure - Google Patents
Wind power generation system of independent phase control structure Download PDFInfo
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- CN103807095A CN103807095A CN201410052445.4A CN201410052445A CN103807095A CN 103807095 A CN103807095 A CN 103807095A CN 201410052445 A CN201410052445 A CN 201410052445A CN 103807095 A CN103807095 A CN 103807095A
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- 238000010248 power generation Methods 0.000 title claims abstract description 33
- 238000004804 winding Methods 0.000 claims description 95
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- 238000012423 maintenance Methods 0.000 claims description 7
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- 239000010949 copper Substances 0.000 description 2
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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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0272—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor by measures acting on the electrical generator
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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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
- H02P9/102—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for limiting effects of transients
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Chemical & Material Sciences (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a wind power generation system of an independent phase control structure. The wind power generation system comprises a wind turbine, a fault-tolerant wind power generator, a modular power converter, a multi-sensor signal detector, a device electrical failure judgment and indicating device, a full-wind-speed optimal torque outer ring controller, a fault-tolerant decision-making inner ring controller and a logic switching and pulse width modulation driver. The wind power generation system is of a wind power generation unit structure which has the fault-tolerant operation capacity and the low torque pulsation and has a driving control technology of the wind power generation unit structure, under the condition that certain unit electrical failures occur, the wind power generation system can continuously generate power and operates in an approximate-rated-capacity mode safely and reliably, and the wind power generation system has the advantages of being simple in mechanical structure, high in electric reliability and high in modular assembly degree, bringing convenience to routing inspection and maintaining and the like.
Description
Technical field
The present invention relates to wind-driven generator and Fault Tolerance Control Technology field, be specifically related to a kind of wind power generating set of fault tolerant operation.
Background technique
Wind-power electricity generation is the renewable energy sources of the current extensive development potentiality of tool, and every country has all dropped into a huge sum of money and competitively researched and developed, and actively pushes forward industrialization process, the application of exploiting market energetically.
Because wind resource distributes, wind power plant is installed on the physical features eminence in suburb or urban district geographical and that weather conditions is more severe more.Once equipment installs, operation management and the repair and maintenance of unit are extremely inconvenient, and for this reason, the continuous reliable operation ability that improves wind power generating set is an important technology in wind power plant research and development manufacture field.Be one of core component in wind power plant due to wind-driven generator, therefore, its reliable operation and fault-tolerant operation ability are particularly important.
At present, mainly there are threephase alternator, DC permanent-magnetic brushless generator and switch reluctance generator for the generator of wind-power generating system.Threephase alternator (as synchronous, double-fed asynchronous, mouse cage asynchronous, winding asynchronous in permanent-magnet synchronous, electric excitation etc.) and DC permanent magnetic generator; adopt distributed symmetric winding structure; when a certain phase winding opens circuit or short trouble; or a certain phase power inverter is while breaking down; air-gap field distortion; cause generator out of control from operation mechanism; cannot reach as the basic controlling target of the wind-power electricity generations such as strong wind power tracking control; if shut down not in time, its serious torque is jolted and will inevitably be damaged machinery.Switch reluctance generator adopts winding in symmetric set, when a certain phase winding opens circuit or short trouble, or a certain phase power inverter is while breaking down, although can move by phase-lacking fault-tolerant, but its intrinsic teeth groove pulsation and imbalance radially magnetic pull characteristic can be exaggerated, generating torque produces periodically serious pulsation, very easily causes the dangerous of the damage of wind turbine and accessory machinery thereof and unit.
Therefore, from improving reliability index angle, avoid the generator of traditional distributed symmetric winding structure cannot phase-deficient operation, and the deficiency of the large torque pulsation of switch reluctance generator, a set of wind-driven generator and the driving control system thereof with fault-tolerant operation ability and low torque ripple of research and design has good engineering and economic implications.
Summary of the invention
The object of the present invention is to provide a kind of wind-power generating system with the wind generating set structure of fault-tolerant operation ability and low torque ripple and the independent phase control structure of Drive Control Technique thereof.
Technical solution of the present invention is:
A wind-power generating system for independent phase control structure, is characterized in that: comprise that in wind turbine, fault-tolerance aerogenerator, modular power converters, multiple sensor signals detector, electrical equipment failure differentiation and indicator, the outer ring controller of full blast speed optimum torque, fault-tolerant decision-making, ring controller, logic are switched and pulse-width-modulation driver;
Described fault-tolerance aerogenerator, be included in stator circumference space, evenly uniformly-spaced staggered m stator electromagnetic isolation tooth and m stator armature generating tooth, individual centralized power generation winding phase, the sinusoidal permanent magnet array of Surface Mount on rotor diameter generating electricity on tooth around stator armature of m; Its rotor is connected with wind turbine rotary main shaft;
Described modular power converters, includes m the single-phase sine-converter circuit of H bridge; The single-phase sine-converter circuit of each H bridge is all connected with negative pole with DC bus is anodal respectively by 2 electric gate-controlled switches; The single-phase sine-converter circuit of each H bridge is all connected with 1 generating winding of fault-tolerance aerogenerator mutually by 1 electric gate-controlled switch;
Described multiple sensor signals detector, comprises air velocity transducer, speed probe, voltage transducer, current sensor; Realize to wind speed, wind turbine rotating speed, fault-tolerance aerogenerator rotating speed with and the detection of the voltage and current of m winding phase;
Described electrical equipment failure is differentiated and indicator, according to the analysis of the voltage and current signal of the fault-tolerance aerogenerator m winding that multiple sensor signals detector is provided, provide the numbering of fault-tolerance aerogenerator k fault winding phase to ring controller in fault-tolerant decision-making, and the fault type of k fault winding phase, wherein k≤m; And utilize display device to indicate numbering and the corresponding fault type thereof of k fault winding phase;
The outer ring controller of described full blast speed optimum torque, according to the wind energy of wind turbine absorb wind speed that best torque curved line relation and multiple sensor signals detector provide, wind turbine rotating speed, fault-tolerance aerogenerator rotating speed with and electric current and the voltage signal of m the winding phase of generating electricity, provide optimal power generation total current control command signal to ring controller in fault-tolerant decision-making;
Ring controller in described fault-tolerant decision-making, number mutually with k fault winding according to optimal power generation total current control command signal, hold allocation algorithm according to coordinating to wait, calculate the individual non-fault winding phase of fault-tolerance aerogenerator (m-k) optimal power generation phase current command signal separately;
Described logic is switched and pulse-width-modulation driver, according to the individual non-fault winding of fault-tolerance aerogenerator (m-k) that in fault-tolerant decision-making, ring controller provides optimal power generation phase current command signal separately mutually, form the pwm control signal of the single-phase sine-converter circuit of corresponding (m-k) individual healthy phases H bridge; And the disconnection control signal of 3k electric gate-controlled switch in the single-phase sine-converter circuit of H bridge corresponding to k fault phase;
Fault-tolerance aerogenerator m stator electromagnetic isolation tooth and m stator armature generating tooth, in stator circumference space, are evenly uniformly-spaced staggered, and its end all has pole shoe structure, to obtain good magnetic field sine distribution character; On m stator electromagnetic isolation tooth, all do not install around winding.
The numerical value of the individual non-fault winding of fault-tolerance aerogenerator (m-k) that in described fault-tolerant decision-making, ring controller calculates optimal power generation phase current command signal separately can be not identical.
Described modular power converters, can differentiate the numbering of the fault winding phase indicating with indicator and corresponding fault type thereof according to electrical equipment failure, carries out online on-line maintenance.
Electrical equipment failure differentiation comprises with the rule that indicator carries out fault distinguishing: (1) is if the electric current of certain generating winding phase of fault-tolerance aerogenerator, mean value in one-period is not equal to zero, and and zero differ larger, obviously be not equal to the average current value of other phases, showing, there is " power electronic element inefficacy " fault in the single-phase sine-converter circuit of H bridge being connected with this generating winding; (2) if the current instantaneous value of certain generating winding phase of fault-tolerance aerogenerator is equal to zero in multiple detection sampling period, being obviously not equal to the current value of other phases, showing, there is " winding overhang opens circuit " fault in this generating winding mutually; (3) if the current effective value of certain generating winding phase of fault-tolerance aerogenerator becomes suddenly large, meanwhile, open circuit voltage effective value diminishes suddenly, is obviously not equal to the voltage and current value of other phases, showing, there is " winding overhang short circuit " fault in this generating winding mutually.Compared with prior art the invention has the advantages that:
(1) fault-tolerance aerogenerator can be short-circuited or open circuit fault in the situation that at part phase winding, electrical isolation fault phase winding rapidly online, and can continue phase shortage generator operation;
(2) fault-tolerance aerogenerator can be under the power electronic element failure conditions of the single-phase sine-converter circuit of modular power converters part H bridge, excises rapidly online the single-phase sine-converter circuit of fault H bridge, and can continue phase shortage generator operation;
(3) the fault-tolerance aerogenerator winding that respectively generates electricity mutually works alone, and the generation current of each phase can independently be controlled;
(4) fault-tolerance aerogenerator holds algorithm assigns by the coordination to optimal power generation torque control command signal etc., guarantees that generator always generates electricity electromagnetic torque in phase-deficient operation situation, large torque does not occur yet and fall or pulse.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is overall construction drawing of the present invention.
Fig. 2 is the sectional structure chart of fault-tolerance aerogenerator.
Fig. 3 is modular power converters structural drawing.
Fig. 4 is the control principle drawing of the outer ring controller of full blast speed optimum torque.
Embodiment
Take a kind of wind-power generating system of independent phase control structure as example, the invention will be further described by reference to the accompanying drawings.
Referring to accompanying drawing 1, the wind-power generating system of described a kind of independent phase control structure is mainly made up of parts such as ring controller, logic switching and pulse-width-modulation driver in wind turbine, fault-tolerance aerogenerator, modular power change device, multiple sensor signals detector, electrical equipment failure differentiation and indicator, the outer ring controller of full blast speed optimum torque, fault-tolerant decision-making.
Referring to accompanying drawing 2, fault-tolerance aerogenerator is mainly made up of stator 1, m stator electromagnetic isolation tooth 2 on stator circumference internal diameter, m stator armature generating tooth 3 on stator circumference internal diameter, m the centralized power generation winding phase 4, rotor 5, the sinusoidal permanent magnet array 6 of Surface Mount on rotor diameter that generate electricity on tooth 3 around stator armature.M stator electromagnetic isolation tooth 2 and m stator armature generating tooth 3, in stator circumference space, are evenly uniformly-spaced staggered, and its end all has pole shoe 7 structures, to obtain good magnetic field sine distribution character; On m stator electromagnetic isolation tooth 2, all do not install around winding; In Fig. 2, m=8.According to Electrical Motor principle, under the effect of stator electromagnetic isolation tooth 2, the interference of the electromagnetic coupling between 4 is very little mutually for the winding that respectively generates electricity, and can realize each generating winding independent control of 4 mutually.
The give a dinner for a visitor from afar rotary main shaft of turbine of the rotor 6 of fault-tolerance aerogenerator, the stator 1 of fault-tolerance aerogenerator is relatively static.In the time rotating under the drive of fault-tolerance aerogenerator rotor 6 at wind turbine, its m centralized power generation winding 4 can, under the cutting of permanent magnetism sine magnetic power air-gap field, produce sinusoidal generating voltage mutually.
Referring to accompanying drawing 3, the centralized power generation winding phase 4 of fault-tolerance aerogenerator, by electric gate-controlled switch 13, is connected with the single-phase sine-converter circuit 8 of H bridge of modular power converters.The single-phase sine-converter circuit 8 of H bridge of modular power converters is connected with bus anodal 9 by electric gate-controlled switch 11, is connected with bus negative pole 10 by electric gate-controlled switch 12.The number of the single-phase sine-converter circuit 8 of H bridge of modular power converters is identical with the number of the centralized power generation winding phase of fault-tolerance aerogenerator.Modular power converters, can differentiate the numbering of the fault winding phase indicating with indicator and corresponding fault type thereof according to electrical equipment failure, carries out online on-line maintenance.
Multiple sensor signals detector, comprises air velocity transducer, speed probe, voltage transducer, current sensor; Realize the detection of the voltage and current to wind speed, fault-tolerance aerogenerator rotating speed and m generating winding phase.
Electrical equipment failure is differentiated and indicator, and the fault-tolerance aerogenerator m providing according to multiple sensor signals detector generating winding 4 voltage and current signal mutually, carries out fault distinguishing.Its rule comprises: (1) is if the electric current of certain generating winding phase of fault-tolerance aerogenerator, mean value in one-period is not equal to zero, and and zero differ larger, obviously be not equal to the average current value of other phases, showing, there is " power electronic element inefficacy " fault in the single-phase sine-converter circuit of H bridge being connected with this generating winding.(2) if the current instantaneous value of certain generating winding phase of fault-tolerance aerogenerator is equal to zero in multiple detection sampling period, being obviously not equal to the current value of other phases, showing, there is " winding overhang opens circuit " fault in this generating winding mutually.(3) if the current effective value of certain generating winding phase of fault-tolerance aerogenerator becomes suddenly large, meanwhile, open circuit voltage effective value diminishes suddenly, is obviously not equal to the voltage and current value of other phases, showing, there is " winding overhang short circuit " fault in this generating winding mutually.
Electrical equipment failure is differentiated and indicator, according to above-mentioned rule, carries out fault distinguishing, obtains the numbering of fault-tolerance aerogenerator k fault winding phase, wherein k≤m; And k the fault type that fault winding is mutually corresponding; These fault types comprise: power electronic element failure of removal, winding overhang open circuit fault, winding overhang short trouble.
Electrical equipment failure is differentiated and indicator, and by the numbering of the k detecting a fault winding phase, and k the mutually corresponding fault type of fault winding offer display device and indicate, for attendant's fast inspection and the maintenance of generator set.
Referring to accompanying drawing 4, the outer ring controller of full blast speed optimum torque, the current i of the fault-tolerance aerogenerator rotational speed omega first providing according to multiple sensor signals detector and m generating winding phase thereof
xwith voltage u
xsignal (x=1,2 ..., m), converse current total generating electromagnetic torque value T
ef; The wind speed v signal providing according to multiple sensor signals detector again and wind turbine rotational speed omega
wtsignal, absorbs best torque curved line relation according to the wind energy of wind turbine, obtains the pneumatic dtc signal T of current optimum
opm *; Pneumatic optimum dtc signal and current total generating electromagnetic torque value are subtracted each other to T
opm *-T
ef, its difference is carried out pid control algorithm computing, draws current optimal power generation total current control command signal i
q *, and offer ring controller in fault-tolerant decision-making.
Described logic is switched and pulse-width-modulation driver, according to the individual non-fault winding of fault-tolerance aerogenerator (m-k) that in fault-tolerant decision-making, ring controller provides optimal power generation phase current command signal separately mutually, form the pwm control signal of the single-phase sine-converter circuit of corresponding (m-k) individual healthy phases H bridge; And the disconnection control signal of 3k electric gate-controlled switch in the single-phase sine-converter circuit of H bridge corresponding to k fault phase.Particularly, ring controller in fault-tolerant decision-making, first differentiate the numbering of k the fault winding phase providing with indicator according to electrical equipment failure, output logic control signal is switched and pulse-width-modulation driver to logic, the pwm control signal that makes corresponding failure winding number mutually the power electronic element in the single-phase sine-converter circuit 8 of corresponding H bridge blocks, and its 3 the electric gate-controlled switches 11,12,13 that are connected are disconnected, to reach the object that k fault winding is realized mutually to electrical isolation.
Because this k fault winding realized electrical isolation mutually, therefore, the attendant of generator set can differentiate according to electrical equipment failure numbering and the fault type thereof of the fault winding phase indicating with indicator, carries out online on-line maintenance.Comprising: for " power electronic element failure of removal ", can directly change the single-phase sine-converter circuit of H bridge that this fault winding phase connects, to get rid of this fault; For " winding overhang open circuit fault " and " winding overhang short trouble ", can measure to determine concrete fault point by manual observation with further, to get rid of this fault, or do conservative processing, wait until entirety maintenance in the future.
The numerical value of the individual non-fault winding of fault-tolerance aerogenerator (m-k) that in described fault-tolerant decision-making, ring controller calculates optimal power generation phase current command signal separately can be not identical.
Ring controller in fault-tolerant decision-making, the more current optimal power generation total current control command signal i providing according to the outer ring controller of full blast speed optimum torque
q *, hold allocation algorithm according to coordinating to wait, distribute mutually the optimal power generation phase current command signal i of each phase to the individual non-fault generating winding of fault-tolerance aerogenerator residue (m-k)
qp *, wherein, p=1,2 ..., m-k.It is coordinated to wait and holds allocation algorithm with this (m-k) individual healthy phases optimal power generation phase current command signal i separately
qp *it is target that vector forms circular magnetic field, and with copper loss, minimum and total generation current value equals or approaches optimal power generation total current control command signal i
q *for constraint conditio, concrete solving equation can be expressed as
Formula (1) the equal sign left side represents when the whole m of fault-tolerance aerogenerator generating windings are all normally worked mutually, the circular rotating magnetic potential that should produce, equal sign the right represents that fault-tolerance aerogenerator is in the time only having (m-k) individual non-fault generating winding normally to work mutually, the circular rotating magnetic potential of the required generation of each healthy phases.Formula (1) has guaranteed that fault-tolerance aerogenerator is excised front and back k generating winding phase factor fault by electrical isolation, and the magnetic potential of generation is equal, and circular magnetic field and total current are worth the appearance distribution principles such as constant coordination.Formula (2) is the copper loss that (m-k) individual non-fault generating winding phase current iy produces, wherein, y=1,2 ..., m-k.Because there is many solutions situation in formula (1), therefore, add formula (2) to get this constraint conditio of minimum value, can make the solution of formula (1) unique.Obviously, i
yfinal solution be i
qp *.
In fault-tolerant decision-making, ring controller will resolve the optimal power generation phase current command signal i of (m-k) that obtain individual non-fault winding phase
qp *offering logic switches and pulse-width-modulation driver.Logic is switched and the stagnant ring modulation control method of pulse-width-modulation driver employing containing current closed-loop, form the pwm control signal of the power electronic element in the single-phase sine-converter circuit 8 of corresponding (m-k) mutually corresponding H bridge of individual non-fault winding, finally to complete the object of the optimum wind-powered electricity generation transformation of energy control of this wind power generating set under full blast speed operating mode.
Claims (4)
1. a wind-power generating system for independent phase control structure, is characterized in that: comprise that in wind turbine, fault-tolerance aerogenerator, modular power converters, multiple sensor signals detector, electrical equipment failure differentiation and indicator, the outer ring controller of full blast speed optimum torque, fault-tolerant decision-making, ring controller, logic are switched and pulse-width-modulation driver;
Described fault-tolerance aerogenerator, be included in stator circumference space, evenly uniformly-spaced staggered m stator electromagnetic isolation tooth and m stator armature generating tooth, individual centralized power generation winding phase, the sinusoidal permanent magnet array of Surface Mount on rotor diameter generating electricity on tooth around stator armature of m; Its rotor is connected with wind turbine rotary main shaft;
Described modular power converters, includes m the single-phase sine-converter circuit of H bridge; The single-phase sine-converter circuit of each H bridge is all connected with negative pole with DC bus is anodal respectively by 2 electric gate-controlled switches; The single-phase sine-converter circuit of each H bridge is all connected with 1 generating winding of fault-tolerance aerogenerator mutually by 1 electric gate-controlled switch;
Described multiple sensor signals detector, comprises air velocity transducer, speed probe, voltage transducer, current sensor; Realize to wind speed, wind turbine rotating speed, fault-tolerance aerogenerator rotating speed with and the detection of the voltage and current of m winding phase;
Described electrical equipment failure is differentiated and indicator, according to the analysis of the voltage and current signal of the fault-tolerance aerogenerator m winding that multiple sensor signals detector is provided, provide the numbering of fault-tolerance aerogenerator k fault winding phase to ring controller in fault-tolerant decision-making, and the fault type of k fault winding phase, wherein k≤m; And utilize display device to indicate numbering and the corresponding fault type thereof of k fault winding phase;
The outer ring controller of described full blast speed optimum torque, according to the wind energy of wind turbine absorb wind speed that best torque curved line relation and multiple sensor signals detector provide, wind turbine rotating speed, fault-tolerance aerogenerator rotating speed with and electric current and the voltage signal of m the winding phase of generating electricity, provide optimal power generation total current control command signal to ring controller in fault-tolerant decision-making;
Ring controller in described fault-tolerant decision-making, number mutually with k fault winding according to optimal power generation total current control command signal, hold allocation algorithm according to coordinating to wait, calculate the individual non-fault winding phase of fault-tolerance aerogenerator (m-k) optimal power generation phase current command signal separately;
Described logic is switched and pulse-width-modulation driver, according to the individual non-fault winding of fault-tolerance aerogenerator (m-k) that in fault-tolerant decision-making, ring controller provides optimal power generation phase current command signal separately mutually, form the pwm control signal of the single-phase sine-converter circuit of corresponding (m-k) individual healthy phases H bridge; And the disconnection control signal of 3k electric gate-controlled switch in the single-phase sine-converter circuit of H bridge corresponding to k fault phase;
Fault-tolerance aerogenerator m stator electromagnetic isolation tooth and m stator armature generating tooth, in stator circumference space, are evenly uniformly-spaced staggered, and its end all has pole shoe structure, to obtain good magnetic field sine distribution character; On m stator electromagnetic isolation tooth, all do not install around winding.
2. the wind-power generating system of independent phase control structure according to claim 1, is characterized in that: the numerical value of the individual non-fault winding of fault-tolerance aerogenerator (m-k) that in described fault-tolerant decision-making, ring controller calculates optimal power generation phase current command signal separately can be not identical.
3. the wind-power generating system of independent phase control structure according to claim 1; it is characterized in that: described modular power converters; can differentiate the numbering of the fault winding phase indicating with indicator and corresponding fault type thereof according to electrical equipment failure, carry out online on-line maintenance.
4. the wind-power generating system of independent phase control structure according to claim 1, it is characterized in that: electrical equipment failure differentiation comprises with the rule that indicator carries out fault distinguishing: (1) is if the electric current of certain generating winding phase of fault-tolerance aerogenerator, mean value in one-period is not equal to zero, and and zero differ larger, obviously be not equal to the average current value of other phases, showing, there is " power electronic element inefficacy " fault in the single-phase sine-converter circuit of H bridge being connected with this generating winding; (2) if the current instantaneous value of certain generating winding phase of fault-tolerance aerogenerator is equal to zero in multiple detection sampling period, being obviously not equal to the current value of other phases, showing, there is " winding overhang opens circuit " fault in this generating winding mutually; (3) if the current effective value of certain generating winding phase of fault-tolerance aerogenerator becomes suddenly large, meanwhile, open circuit voltage effective value diminishes suddenly, is obviously not equal to the voltage and current value of other phases, showing, there is " winding overhang short circuit " fault in this generating winding mutually.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918700.3A CN105386933B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of the phased structure of independence of low torque ripple |
| CN201510916824.8A CN105386932B (en) | 2014-02-17 | 2014-02-17 | Can phase shortage generator operation the phased structure of independence wind generator system |
| CN201410052445.4A CN103807095B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of independent phase control structure |
| CN201510919070.1A CN105450112B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of the phased structure of independence with fault-tolerant operation ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410052445.4A CN103807095B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of independent phase control structure |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510919070.1A Division CN105450112B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of the phased structure of independence with fault-tolerant operation ability |
| CN201510918700.3A Division CN105386933B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of the phased structure of independence of low torque ripple |
| CN201510916824.8A Division CN105386932B (en) | 2014-02-17 | 2014-02-17 | Can phase shortage generator operation the phased structure of independence wind generator system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103807095A true CN103807095A (en) | 2014-05-21 |
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| CN201510916824.8A Expired - Fee Related CN105386932B (en) | 2014-02-17 | 2014-02-17 | Can phase shortage generator operation the phased structure of independence wind generator system |
| CN201410052445.4A Expired - Fee Related CN103807095B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of independent phase control structure |
| CN201510918700.3A Expired - Fee Related CN105386933B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of the phased structure of independence of low torque ripple |
| CN201510919070.1A Expired - Fee Related CN105450112B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of the phased structure of independence with fault-tolerant operation ability |
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| CN201510918700.3A Expired - Fee Related CN105386933B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of the phased structure of independence of low torque ripple |
| CN201510919070.1A Expired - Fee Related CN105450112B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of the phased structure of independence with fault-tolerant operation ability |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11152838B2 (en) | 2016-12-22 | 2021-10-19 | Vestas Wind Systems A/S | Measuring transducer currents in a wind turbine generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105673324B (en) * | 2016-03-31 | 2018-04-10 | 广西大学 | A kind of method for realizing Wind turbines MPPT maximum power point tracking |
| CN106655551B (en) * | 2017-01-14 | 2019-01-15 | 山东理工大学 | A kind of body-sensing vehicle electrical excitation hub motor |
| US10230321B1 (en) * | 2017-10-23 | 2019-03-12 | General Electric Company | System and method for preventing permanent magnet demagnetization in electrical machines |
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- 2014-02-17 CN CN201410052445.4A patent/CN103807095B/en not_active Expired - Fee Related
- 2014-02-17 CN CN201510918700.3A patent/CN105386933B/en not_active Expired - Fee Related
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| CN101355286A (en) * | 2008-09-09 | 2009-01-28 | 浙江大学 | Mixing excitation type permanent magnet switch magnetic linkage electric machine |
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| US11152838B2 (en) | 2016-12-22 | 2021-10-19 | Vestas Wind Systems A/S | Measuring transducer currents in a wind turbine generator |
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| Publication number | Publication date |
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| CN103807095B (en) | 2016-04-13 |
| CN105386933B (en) | 2017-10-10 |
| CN105386932B (en) | 2017-10-17 |
| CN105386932A (en) | 2016-03-09 |
| CN105450112A (en) | 2016-03-30 |
| CN105386933A (en) | 2016-03-09 |
| CN105450112B (en) | 2017-09-12 |
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