CN105386932A - Wind power generation system capable of achieving default-phase power generation operation and of independent phase-control structure - Google Patents
Wind power generation system capable of achieving default-phase power generation operation and of independent phase-control structure Download PDFInfo
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- CN105386932A CN105386932A CN201510916824.8A CN201510916824A CN105386932A CN 105386932 A CN105386932 A CN 105386932A CN 201510916824 A CN201510916824 A CN 201510916824A CN 105386932 A CN105386932 A CN 105386932A
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- 238000010248 power generation Methods 0.000 title claims abstract description 36
- 238000012423 maintenance Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 94
- 230000005611 electricity Effects 0.000 claims description 16
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- 230000010349 pulsation Effects 0.000 description 3
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Classifications
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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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- 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
- F03D7/0272—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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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a wind power generation system capable of achieving default-phase power generation operation and 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, an equipment electrical fault judging and indicating device, a total-wind-speed optimal torque outer-loop controller, a fault-tolerant decision-making inner-loop controller and a logic switching and pulse width modulation driver. According to the wind power generation system capable of achieving default-phase power generation operation and of the independent phase-control structure, a wind power generation unit structure having the fault-tolerant operation capacity and a driving control technique for the wind power generation unit structure are adopted so that the wind power generation system can continue to achieve power generation operation safety and reliability in the mode of approximating to the rated capacity under the condition that electrical faults happens to certain units; the wind power generation system has the characteristics that the mechanical structure is simple, the electrical reliability is high, the degree of modular assembly is high, and polling and maintenance are convenient.
Description
The application is application number: the divisional application of 201410052445.4, the applying date: 2014.2.17, title " wind-power generating system of independent phase control structure ".
Technical field
The present invention relates to wind-driven generator and Fault Tolerance Control Technology field, be specifically related to the wind power generating set that a kind of fault tolerant runs.
Background technique
Wind-power electricity generation is the renewable energy sources of current most extensive development potentiality, and every country has all dropped into a huge sum of money and competitively researched and developed, and actively pushes forward industrialization process, application of exploiting market energetically.
Due to wind resource distribution, wind power plant is installed on the physical features eminence in geographical and that weather conditions is more severe suburb or urban district 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 improving wind power generating set is an important technology in wind power plant research and development manufacture field.Due to one of core component that wind-driven generator is in wind power plant, therefore, its reliable operation and fault-tolerant operation ability particularly important.
At present, the generator for wind-power generating system mainly contains threephase alternator, DC permanent-magnetic brushless generator and switch reluctance generator.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 construction; when a certain phase winding generation open circuit or short trouble; or a certain phase power inverter is when breaking down; air-gap field distorts; cause generator out of control from operation mechanism; the basic controlling target as wind-power electricity generations such as most strong wind power tracking controls cannot be reached; if shut down not in time, its serious torque is jolted and will inevitably be damaged machinery.Switch reluctance generator adopts symmetrical concentratred winding, when a certain phase winding generation open circuit or short trouble, or a certain phase power inverter is when breaking down, although can run by phase-lacking fault-tolerant, but the pulsation of its intrinsic teeth groove and the radial magnetic pull characteristic of imbalance can be exaggerated, generating torque produces periodically serious pulsation, very easily causes the damage of wind turbine and accessory machinery thereof and the dangerous of unit.
Therefore, from raising 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, research and design is a set of has the wind-driven generator of fault-tolerant operation ability and low torque ripple and driving control system 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 wind turbine, fault-tolerance aerogenerator, modular power converters, multiple sensor signals detector, electrical equipment failure differentiation and ring controller, logic switch and pulse-width-modulation driver in indicator, the outer ring controller of full blast speed optimum torque, fault-tolerant decision-making;
Described fault-tolerance aerogenerator, be included in stator circumference space, evenly staggered m stator electromagnet isolates tooth and m stator armature generating tooth, individual centralized power generation winding phase, the sinusoidal permanent magnet array of Surface Mount on rotor diameter generated electricity on tooth around stator armature of m at equal intervals; 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; Each H bridge single-phase sine-converter circuit is all connected with negative pole with DC bus positive pole respectively by 2 electric gate-controlled switches; Each H bridge single-phase sine-converter circuit is all connected with 1 winding that generates electricity 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 the detection to the voltage and current of wind speed, wind turbine rotating speed, fault-tolerance aerogenerator rotating speed and its m winding phase;
Described electrical equipment failure differentiates and indicator, according to the analysis of the voltage and current signal of the fault-tolerance aerogenerator m winding provided multiple sensor signals detector, in fault-tolerant decision-making, ring controller provides the numbering of fault-tolerance aerogenerator k fault winding phase, and the fault type of k fault winding phase, wherein k≤m; And utilize display device to indicate the numbering of k fault winding phase and the fault type of correspondence thereof;
The outer ring controller of described full blast speed optimum torque, absorb electric current and the voltage signal of wind speed, wind turbine rotating speed, fault-tolerance aerogenerator rotating speed and its m the winding phase that generates electricity that best torque curved line relation and multiple sensor signals detector provide according to the wind energy of wind turbine, in fault-tolerant decision-making, ring controller provides optimal power generation total current control command signal;
Ring controller in described fault-tolerant decision-making, number mutually with k fault winding according to optimal power generation total current control command signal, wait according to coordination and hold allocation algorithm, calculate the optimal power generation phase current command signal that fault-tolerance aerogenerator (m-k) individual non-faulting winding is mutually respective;
Described logic switch and pulse-width-modulation driver, the optimal power generation phase current command signal that fault-tolerance aerogenerator (m-k) the individual non-faulting winding provided according to ring controller in fault-tolerant decision-making is mutually respective, forms 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 electromagnet isolation tooth and m stator armature generating tooth are in stator circumference space, and be evenly staggered at equal intervals, its end all has pole shoe structure, to obtain good magnetic field sine distribution character; M stator electromagnet isolation tooth does not all install around winding.
In described fault-tolerant decision-making, the numerical value of fault-tolerance aerogenerator (m-k) the individual non-faulting winding optimal power generation phase current command signal separately that ring controller calculates can not be identical.
Described modular power converters, can differentiate and the numbering of the fault winding phase that indicator indicates and corresponding fault type thereof according to electrical equipment failure, carry out online on-line maintenance.
Electrical equipment failure differentiates that the rule of carrying out fault distinguishing with indicator comprises: (1) is if the electric current of certain winding phase that generates electricity of fault-tolerance aerogenerator, mean value in one-period is not equal to zero, and with zero phase error is larger, obviously be not equal to the average current value of other phases, then show, the single-phase sine-converter circuit of the H bridge be connected with this generating winding there occurs " power electronic element lost efficacy " fault; (2) if the current instantaneous value of certain generating winding phase of fault-tolerance aerogenerator, in multiple detection sampling period, be equal to zero, be obviously not equal to the current value of other phases, then show, this generating winding there occurs " winding overhang open circuit " fault 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, then show, this generating winding there occurs " winding overhang short circuit " fault mutually.Compared with prior art the invention has the advantages that:
(1) fault-tolerance aerogenerator can when part phase winding be short-circuited or open circuit fault, electrical isolation fault phase winding rapidly online, and phase shortage generator operation can be continued;
(2) fault-tolerance aerogenerator under the power electronic element failure conditions of the single-phase sine-converter circuit of modular power converters part H bridge, can excise the single-phase sine-converter circuit of fault H bridge, and can continue phase shortage generator operation online rapidly;
(3) fault-tolerance aerogenerator respectively mutually generate electricity winding work alone, the generation current of each phase can independently control;
(4) fault-tolerance aerogenerator holds algorithm assigns by the coordination to optimal power generation direct torque command signal etc., ensures that generator always generates electricity electromagnetic torque in phase-deficient operation situation, large torque does not occur yet and falls 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
For a kind of wind-power generating system of independent phase control structure, the invention will be further described by reference to the accompanying drawings.
See accompanying drawing 1, the wind-power generating system of described a kind of independent phase control structure partly forms with ring controller, logic switch and pulse-width-modulation driver etc. in indicator, the outer ring controller of full blast speed optimum torque, fault-tolerant decision-making primarily of wind turbine, fault-tolerance aerogenerator, modular power change device, multiple sensor signals detector, electrical equipment failure differentiation.
See accompanying drawing 2, fault-tolerance aerogenerator forms around the centralized power generation winding phase 4 on stator armature generating tooth 3, rotor 5, the sinusoidal permanent magnet array 6 of Surface Mount on rotor diameter primarily of stator 1, m stator electromagnet isolation tooth 2 on stator circumference internal diameter, m stator armature generating tooth 3 on stator circumference internal diameter, m.M stator electromagnet isolation tooth 2 and m stator armature generating tooth 3 are in stator circumference space, and be evenly staggered at equal intervals, its end all has pole shoe 7 structure, to obtain good magnetic field sine distribution character; M stator electromagnet isolation tooth 2 does not all install around winding; In Fig. 2, m=8.According to Electrical Motor principle, isolate the effect of tooth 2 at stator electromagnet under, the electromagnetic coupling interference of each generating winding mutually between 4 is very little, and the independence that can realize each generating winding phase 4 controls.
The rotor 6 of fault-tolerance aerogenerator is given a dinner for a visitor from afar the rotary main shaft of turbine, stator 1 geo-stationary of fault-tolerance aerogenerator.When rotating under the drive of fault-tolerance aerogenerator rotor 6 at wind turbine, its m centralized power generation winding 4 under the cutting of permanent magnetism sine magnetic power air-gap field, can produce sinusoidal generating voltage mutually.
See 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 the H bridge of modular power converters.The H bridge single-phase sine-converter circuit 8 of modular power converters is connected with bus positive pole 9 by electric gate-controlled switch 11, is connected with bus negative pole 10 by electric gate-controlled switch 12.The number of H bridge single-phase sine-converter circuit 8 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 and the numbering of the fault winding phase that indicator indicates and corresponding fault type thereof according to electrical equipment failure, carry 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 differentiates and indicator, according to the voltage and current signal of fault-tolerance aerogenerator m the generating winding phase 4 that multiple sensor signals detector provides, 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 with zero phase error is larger, obviously be not equal to the average current value of other phases, then show, the single-phase sine-converter circuit of the H bridge be connected with this generating winding there occurs " power electronic element lost efficacy " fault.(2) if the current instantaneous value of certain generating winding phase of fault-tolerance aerogenerator, in multiple detection sampling period, be equal to zero, be obviously not equal to the current value of other phases, then show, this generating winding there occurs " winding overhang open circuit " fault 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, then show, this generating winding there occurs " winding overhang short circuit " fault mutually.
Electrical equipment failure differentiates 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 the fault type that k 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 differentiates and indicator, and by the numbering of k fault winding phase detected, and the mutually corresponding fault type of k fault winding is supplied to display device and indicates, for attendant's fast inspection and the maintenance of generator set.
See accompanying drawing 4, the outer ring controller of full blast speed optimum torque, the fault-tolerance aerogenerator rotational speed omega first provided according to multiple sensor signals detector and the current i of m the winding phase that generates electricity thereof
xwith voltage u
xsignal (x=1,2 ..., m), converse current total generating electromagnetic torque value T
ef; The wind speed v signal provided according to multiple sensor signals detector again and wind turbine rotational speed omega
wtsignal, the wind energy according to wind turbine absorbs best torque curved line relation, obtains current optimum pneumatic torque signal T
opm*; Optimum pneumatic torque signal and current total generating electromagnetic torque value are subtracted each other, T
opm*-T
ef, its difference carries out pid control algorithm computing, draws current optimal power generation total current control command signal i
qand be supplied to ring controller in fault-tolerant decision-making *.
Described logic switch and pulse-width-modulation driver, the optimal power generation phase current command signal that fault-tolerance aerogenerator (m-k) the individual non-faulting winding provided according to ring controller in fault-tolerant decision-making is mutually respective, forms 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.Specifically, ring controller in fault-tolerant decision-making, first the numbering of k the fault winding phase provided with indicator is differentiated according to electrical equipment failure, output logic control signal is to logic switch and pulse-width-modulation driver, the pwm control signal making corresponding failure winding number the power electronic element in the single-phase sine-converter circuit 8 of corresponding H bridge mutually blocks, and the electric gate-controlled switch 11,12,13 that is connected its 3 disconnects, to reach object k fault winding being realized mutually to electrical isolation.
Because this k fault winding achieves electrical isolation mutually, therefore, the attendant of generator set can differentiate numbering and the fault type thereof of the fault winding phase that indicate with indicator according to electrical equipment failure, carry out online on-line maintenance.Comprising: for " power electronic element failure of removal ", the single-phase sine-converter circuit of H bridge that this fault winding phase connects directly can be changed, 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 process, wait until entirety maintenance in the future.
In described fault-tolerant decision-making, the numerical value of fault-tolerance aerogenerator (m-k) the individual non-faulting winding optimal power generation phase current command signal separately that ring controller calculates can not be identical.
Ring controller in fault-tolerant decision-making, then according to the current optimal power generation total current control command signal i that the outer ring controller of full blast speed optimum torque provides
q*, wait according to coordination and hold allocation algorithm, to the optimal power generation phase current command signal i of each phase of fault-tolerance aerogenerator residue (m-k) individual non-faulting generating winding phase partitioning
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* vector forms circular magnetic field is target, minimum and total generation current value equals or close to optimal power generation total current control command signal i with copper loss
q* be constraint conditio, concrete solving equation can be expressed as
Formula (1) the equal sign left side represents the whole m of fault-tolerance aerogenerator generating winding when all normally working mutually, the circular rotating magnetic potential that should produce, fault-tolerance aerogenerator is represented when only there being (m-k) individual non-faulting generating winding normally to work mutually, the required circular rotating magnetic potential produced of each healthy phases on the right of equal sign.Formula (1) ensure that fault-tolerance aerogenerator is electrically isolated before and after excision k generating winding phase factor fault, and the magnetic potential of generation is equal, and namely circular magnetic field and total current are worth constant coordination etc. and hold distribution principle.Formula (2) is (m-k) individual non-faulting generating winding phase current i
ythe copper loss produced, wherein, y=1,2 ..., m-k.Because there is the situation of separating in formula (1), therefore, add formula (2) and get this constraint conditio of minimum value, the solution of formula (1) can be made unique more.Obviously, i
ylast 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) the individual non-faulting winding phase obtained
qp* logic switch and pulse-width-modulation driver is supplied to.Logic switch and pulse-width-modulation driver adopt the stagnant ring modulation control method containing current closed-loop, form the pwm control signal of the power electronic element in corresponding (m-k) individual non-faulting winding single-phase sine-converter circuit 8 of H bridge corresponding mutually, finally to complete the object that the optimum wind-powered electricity generation transformation of energy of this wind power generating set under full blast speed operating mode controls.
Claims (4)
1. can the wind-power generating system of independent phase control structure of phase shortage generator operation, it is characterized in that: comprise wind turbine, fault-tolerance aerogenerator, modular power converters, multiple sensor signals detector, electrical equipment failure differentiate and ring controller, logic switch and pulse-width-modulation driver in indicator, the outer ring controller of full blast speed optimum torque, fault-tolerant decision-making;
Described fault-tolerance aerogenerator, be included in stator circumference space, evenly staggered m stator electromagnet isolates tooth and m stator armature generating tooth, individual centralized power generation winding phase, the sinusoidal permanent magnet array of Surface Mount on rotor diameter generated electricity on tooth around stator armature of m at equal intervals; 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; Each H bridge single-phase sine-converter circuit is all connected with negative pole with DC bus positive pole respectively by 2 electric gate-controlled switches; Each H bridge single-phase sine-converter circuit is all connected with 1 winding that generates electricity 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 the detection to the voltage and current of wind speed, wind turbine rotating speed, fault-tolerance aerogenerator rotating speed and its m winding phase;
Described electrical equipment failure differentiates and indicator, according to the analysis of the voltage and current signal of the fault-tolerance aerogenerator m winding provided multiple sensor signals detector, in fault-tolerant decision-making, ring controller provides the numbering of fault-tolerance aerogenerator k fault winding phase, and the fault type of k fault winding phase, wherein k<m; And utilize display device to indicate the numbering of k fault winding phase and the fault type of correspondence thereof;
The outer ring controller of described full blast speed optimum torque, absorb electric current and the voltage signal of wind speed, wind turbine rotating speed, fault-tolerance aerogenerator rotating speed and its m the winding phase that generates electricity that best torque curved line relation and multiple sensor signals detector provide according to the wind energy of wind turbine, in fault-tolerant decision-making, ring controller provides optimal power generation total current control command signal;
Ring controller in described fault-tolerant decision-making, number mutually with k fault winding according to optimal power generation total current control command signal, wait according to coordination and hold allocation algorithm, calculate the optimal power generation phase current command signal that fault-tolerance aerogenerator (m-k) individual non-faulting winding is mutually respective;
Described logic switch and pulse-width-modulation driver, the optimal power generation phase current command signal that fault-tolerance aerogenerator (m-k) the individual non-faulting winding provided according to ring controller in fault-tolerant decision-making is mutually respective, forms 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 electromagnet isolation tooth and m stator armature generating tooth are in stator circumference space, and be evenly staggered at equal intervals, its end all has pole shoe structure, to obtain good magnetic field sine distribution character; M stator electromagnet isolation tooth does not all install around winding;
Described modular power converters, can differentiate and the numbering of the fault winding phase that indicator indicates and corresponding fault type thereof according to electrical equipment failure, carry out online on-line maintenance.
2. according to claim 1 can the wind-power generating system of independent phase control structure of phase shortage generator operation, it is characterized in that: electrical equipment failure differentiates that the rule of carrying out fault distinguishing with indicator comprises: if the electric current of certain winding phase that generates electricity of fault-tolerance aerogenerator, mean value in one-period is not equal to zero, and with zero phase error is larger, obviously be not equal to the average current value of other phases, then show, the single-phase sine-converter circuit of the H bridge be connected with this generating winding there occurs " power electronic element lost efficacy " fault.
3. according to claim 1 can the wind-power generating system of independent phase control structure of phase shortage generator operation, it is characterized in that: electrical equipment failure differentiates that the rule of carrying out fault distinguishing with indicator comprises: if the current instantaneous value of certain winding phase that generates electricity of fault-tolerance aerogenerator, zero is equal in multiple detection sampling period, obviously be not equal to the current value of other phases, then show, this generating winding there occurs " winding overhang open circuit " fault mutually.
4. according to claim 1 can the wind-power generating system of independent phase control structure of phase shortage generator operation, it is characterized in that: electrical equipment failure differentiates that the rule of carrying out fault distinguishing with indicator comprises: if the current effective value of certain winding phase that generates electricity of fault-tolerance aerogenerator becomes suddenly large, simultaneously, open circuit voltage effective value diminishes suddenly, obviously be not equal to the voltage and current value of other phases, then show, this generating winding there occurs " winding overhang short circuit " fault mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916824.8A CN105386932B (en) | 2014-02-17 | 2014-02-17 | Can phase shortage generator operation the phased structure of independence wind generator system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410052445.4A Division CN103807095B (en) | 2014-02-17 | 2014-02-17 | The wind generator system of independent phase control structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105386932A true CN105386932A (en) | 2016-03-09 |
| CN105386932B CN105386932B (en) | 2017-10-17 |
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| 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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| 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 |
| WO2018113876A1 (en) | 2016-12-22 | 2018-06-28 | Vestas Wind Systems A/S | Measuring transducer currents in a wind turbine generator |
| 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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| US6504281B1 (en) * | 2000-07-12 | 2003-01-07 | Electric Boat Corporation | Synchronous machine fault tolerant arrangement |
| 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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| US5578880A (en) * | 1994-07-18 | 1996-11-26 | General Electric Company | Fault tolerant active magnetic bearing electric system |
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- 2014-02-17 CN CN201510916824.8A patent/CN105386932B/en not_active Expired - Fee Related
- 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
- 2014-02-17 CN CN201510919070.1A patent/CN105450112B/en not_active Expired - Fee Related
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| CN1303534A (en) * | 1998-04-02 | 2001-07-11 | 太平洋科学公司 | Fault tolerant electric machine |
| US6504281B1 (en) * | 2000-07-12 | 2003-01-07 | Electric Boat Corporation | Synchronous machine fault tolerant arrangement |
| CN101355286A (en) * | 2008-09-09 | 2009-01-28 | 浙江大学 | Mixing excitation type permanent magnet switch magnetic linkage electric machine |
| CN101958683A (en) * | 2010-08-09 | 2011-01-26 | 重庆科凯前卫风电设备有限责任公司 | Method for acquiring redundant stator voltage signal of double-fed wind turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103807095B (en) | 2016-04-13 |
| CN105386933B (en) | 2017-10-10 |
| CN105386932B (en) | 2017-10-17 |
| CN105450112A (en) | 2016-03-30 |
| CN105386933A (en) | 2016-03-09 |
| CN105450112B (en) | 2017-09-12 |
| CN103807095A (en) | 2014-05-21 |
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