CN207161256U - A kind of wind electricity blade fatigue loading encourages isochronous controller - Google Patents
A kind of wind electricity blade fatigue loading encourages isochronous controller Download PDFInfo
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- CN207161256U CN207161256U CN201720487392.8U CN201720487392U CN207161256U CN 207161256 U CN207161256 U CN 207161256U CN 201720487392 U CN201720487392 U CN 201720487392U CN 207161256 U CN207161256 U CN 207161256U
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- Prior art keywords
- wind electricity
- electricity blade
- isochronous controller
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- signal
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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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Abstract
The utility model discloses a kind of wind electricity blade fatigue loading to encourage isochronous controller, the multiple synchronous control devices being connected including main controller and by CAN with General controller, the utility model devise the isochronous controller for the tired two exciting sources loading of wind electricity blade using High Performance SCM XC164CS.Isochronous controller has the advantages that computing and data-handling capacity be strong, networking flexibility, strong antijamming capability, convenient and simple can implement to be acquired the rotating speed and eccentric block position signalling (phase) of exciting source, real-time.The synchronization of fiducial time is effectively guaranteed by way of RS485 bus broadcast reference signals, Fieldbus Based exciting source synchronous vibration control reliability is high, and extension is convenient.The actual motion that isochronous controller has been put into, the actual demand of wind electricity blade fatigue loading experiment is met, preferable effect is achieved, there is certain reference and popularizing value.
Description
Technical field
The utility model relates to a kind of controller, specifically a kind of wind electricity blade fatigue loading excitation isochronous controller.
Background technology
Critical component of the wind electricity blade as wind power generating set, to it carry out fatigue property test be come into operation must
Need link.As blade gradually develops to high-power direction, single point excitation mode does not reach requirement not only on test accuracy, swashs
For ability of shaking more up for improving, carrying out drive load with joint efforts to wind electricity blade using two exciting sources turns into new developing direction.For
Co-ordination is, it is necessary to design corresponding isochronous controller between each exciting source of guarantee (pendulum).The control of electric control synchronous mode
Object is mainly motor etc., and control parameter is displacement, speed, phase, and its core technology is that Strategy For Synchronization Control is calculated with control
Method, flexibility are preferable.The exciting source system of blade two is due to locating under vibration, uncertainty, the mechanical couplings of various interference
The complexity of effect, motor parameter all have an impact with the non-linear etc. of environmental change to the synchronous regime of system.System
Dynamic characteristic and corresponding parameter are influenceed by external disturbance factor, are deposited coupling phenomenon between exciting source admittedly and are added reality together
Walk the difficulty of control.With the rapid development of microelectric technique, the reliability and calculation process speed of digital control microchip
Obtain tremendous increase.Numerous and diverse control rule is realized using high-performance microprocessor, designs and develops out fatigue loading Synchronization Control
Device, to whole control circuit fault detect, diagnosis and protection, realize drive load of making a concerted effort.
Utility model content
The purpose of this utility model is that providing a kind of wind electricity blade fatigue loading encourages isochronous controller above-mentioned to solve
The problem of being proposed in background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of wind electricity blade fatigue loading encourages isochronous controller, including main controller and passes through CAN and General controller phase
Multiple synchronous control devices of connection, the synchronous control device include differential signal recovery module, power circuit, signal processing module and list
Piece machine, power circuit respectively to differential signal recovery module, signal processing module and single-chip microcomputer power supply, signal processing module it is defeated
Enter end and connect differential signal recovery module and sensor signal, the output end connection single-chip microcomputer of signal processing module, monolithic respectively
Machine connects CAN by CAN interface.
As further program of the utility model：The signal processing module includes comparison circuit, photoelectric isolation module
And power amplifier module.
As further program of the utility model：The differential signal recovery module is also connected by RS485 communications protocol
Connect reference pulse signal.
As further program of the utility model：The single-chip microcomputer also connects frequency converter by RS485 interfaces.
Compared with prior art, the beneficial effects of the utility model are：The utility model uses High Performance SCM
XC164CS devises the isochronous controller for the tired two exciting sources loading of wind electricity blade.Isochronous controller has computing and number
, can the convenient and simple rotating speed and eccentric block implemented to exciting source according to the advantages that disposal ability is strong, networking flexibility, strong antijamming capability
Position signalling (phase) is acquired, real-time.Base is effectively guaranteed by way of RS485 bus broadcast reference signals
Synchronization between punctual, Fieldbus Based exciting source synchronous vibration control reliability is high, and extension is convenient.Isochronous controller has been thrown
The actual motion entered, the actual demand of wind electricity blade fatigue loading experiment is met, achieves preferable effect, had necessarily
With reference to and popularizing value.
Brief description of the drawings
Fig. 1 is the block diagram of this wind electricity blade fatigue loading excitation isochronous controller.
Fig. 2 is the circuit diagram of CAN interface circuit.
Fig. 3 is the circuit diagram of signal processing circuit.
Fig. 4 is phase difference calculating schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1-4, in the utility model embodiment, a kind of wind electricity blade fatigue loading encourages isochronous controller, bag
Main controller and the multiple synchronous control devices being connected by CAN with General controller are included, the synchronous control device includes differential signal also
Former module, power circuit, signal processing module and single-chip microcomputer, power circuit is respectively to differential signal recovery module, signal transacting
Module and single-chip microcomputer power supply, the input of signal processing module connect differential signal recovery module and sensor signal respectively, believe
The output end connection single-chip microcomputer of number processing module, single-chip microcomputer connect CAN by CAN interface.
Signal processing module includes comparison circuit, photoelectric isolation module and power amplifier module.Differential signal recovery module
Reference pulse signal is also connected by RS485 communications protocol.Single-chip microcomputer also connects frequency converter by RS485 interfaces.
Operation principle of the present utility model is：Isochronous controller structure is as shown in figure 1, using Infineon's XC164 single-chip microcomputers
As processor, it has 16 tunnel high-speed capture comparing units and 2 independent temporal references, neatly gear can be tested the speed
The pulse signal of sensor carries out high-speed capture；High speed TwinCAN modules with autogateway function, can be to two excitings
Source carries out effective networking, forms network control system；RS485 interfaces are mainly used in the communication with frequency converter, to motor
Rotating speed is controlled in real time.Signal processing is added before mouth is captured during isochronous controller, the part is made up of three parts：
(1) signal comparator circuit, the influence of square-wave pulse burr is eliminated, effective clamper of signal is realized, completes the modulation of pulse signal；
(2) optical coupling isolation circuit；(3) driving enhancing circuit.Isochronous controller can be preferably to exciting source rotating speed and eccentric block position
Signal (phase) is acquired, and has the advantages that computing and data-handling capacity be strong, networking flexibility, strong antijamming capability.
CAN interface circuit；From the device of UC5350 chip CAN networks communication data transmitting-receiving, operating voltage
5V DC voltages, chip pin RXD are defeated by 100 Ω resistance connection controller serial data as the delivery outlet for receiving data
Enter pin.Pin CANL and pin CANH is respectively low, high level input/output terminal, makees to go here and there between the two during input use
The resistance that one resistance of connection is 120 Ω comes anti-interference.
Signal processing circuit；VCC operating voltages connection one high frequency capacitance of termination, for absorbing the high frequency on supply voltage
Harmonic wave, while influence when can also weaken triode break-make to supply voltage.Pin 6 selects 4.7k pull-up resistor output signals,
For controlling the break-make of power model internal switch device.Signal eliminates square-wave pulse burr after comparator LM393 effects
Influence, realize effective clamper of signal, complete the modulation of pulse signal.Pass through optocoupler components TLP521 signals PDPIA
Power model IR2104 enhancing drivings are connected, the signal is sent into singlechip controller capture-port, carries out high-speed capture, is carried out
The collection of rotating speed and phase signal, its circuit theory is as shown in the 3 of figure.
Synchronisation control means：
Exciting force can synchronously be described with comprehensive gravity center line, when the comprehensive gravity center line of each exciting source arrives simultaneously
Illustrate that exciting force is synchronized, therefore the synchronous requirement of exciting force is Phase synchronization.For separate unit exciting source, rotational speed omega (t)
It can be represented with phase P (t) relation with following formula：
S (t)=S0+∫ω(t)dt (1)
In formula, S0For initial phase.
From formula (1), formula (2), the stable synchronous of phase is maintained within a period of time, rotating speed must be synchronous,
Certain moment synchronization, phase can also remain constant, but there may be phase difference, and changing rotating speed just can send out phase and phase difference
Raw to change, rotating speed influences each other with phase difference and mutually restricted.Therefore the general principle of more exciting source Synchronization Controls is：It is real
When detect pendulum eccentric block rotating speed and phase condition, turning for every exciting source is controlled by certain control method and control strategy
Speed, the pursuit or wait of phase are completed by the fine setting of rotating speed, eliminate phase difference, rotating speed and phase is all reached synchronous.
Phase difference is captured and calculated
Phase measurement is realized by the high-speed capture function of isochronous controller, when controller detects transducing signal height
During level, corresponding timer is triggered, completes the calculating task of correlation.In order to easily extract phase difference letter from phase signal
Number, the calculating that virtual time method of principal axis carries out phase difference is employed, calculates the phase information of each exciting source, while have a void
Pseudotime main shaft independent operating calculates the time value of corresponding trigger signal.The phase difference calculating signal such as Fig. 4 of two exciting sources
Shown, for the phase calculation of exciting source 1 and exciting source 2 using each independent time ruler, obtained phase information is respectively tp1
With tp2, some timer binding (such as T of time main shaft and processor6), if the exciting source on the basis of exciting source 2, works as base
Timer T is triggered during quasi- exciting source rising edge6, the Off Timer T when the rising edge of exciting source 1 arrives6, obtain main shaft time Tz,
Then the phase information of two exciting sources can be expressed as：
Δ P=Tz+Tp1-Tp2 (3)
When the clock accuracy of timer is x1During μ s, vibration period x2μ s, then phase difference α roots between two exciting sources
Calculated according to following formula：
It can ensure that the time scale for calculating phase difference is consistent using virtual time method of principal axis, clear logic, it is convenient to realize,
Also the phase difference calculating of more exciting source systems can be more easily applied to.
The utility model utilizes Modern Transducer Technology, control technology and network technology, and two exciting sources are carried out into networking, real
Electronics flexible connection between existing exciting source, devises synchronous vibration control system.Analyzer-controller overall structure, complete hardware
The design of circuit and synchronous method, mainly includes：Signal transacting, power control unit and its peripheral driver unit, telecommunication circuit,
Working power, synchronisation control means, phase difference capture and calculating etc..Used, obtained in wind electricity blade testing ground by model machine
Preferable effect, there is a higher promotional value.
Claims (4)
1. a kind of wind electricity blade fatigue loading encourages isochronous controller, including main controller and it is connected by CAN with General controller
The multiple synchronous control devices connect, it is characterised in that the synchronous control device includes differential signal recovery module, power circuit, at signal
Module and single-chip microcomputer are managed, power circuit is powered to differential signal recovery module, signal processing module and single-chip microcomputer respectively, at signal
The input of reason module connects differential signal recovery module and sensor signal respectively, and the output end connection of signal processing module is single
Piece machine, single-chip microcomputer connect CAN by CAN interface.
A kind of 2. wind electricity blade fatigue loading excitation isochronous controller according to claim 1, it is characterised in that the letter
Number processing module includes comparison circuit, photoelectric isolation module and power amplifier module.
A kind of 3. wind electricity blade fatigue loading excitation isochronous controller according to claim 1, it is characterised in that the difference
Sub-signal recovery module also connects reference pulse signal by RS485 communications protocol.
A kind of 4. wind electricity blade fatigue loading excitation isochronous controller according to claim 1, it is characterised in that the list
Piece machine also connects frequency converter by RS485 interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720487392.8U CN207161256U (en) | 2017-05-04 | 2017-05-04 | A kind of wind electricity blade fatigue loading encourages isochronous controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720487392.8U CN207161256U (en) | 2017-05-04 | 2017-05-04 | A kind of wind electricity blade fatigue loading encourages isochronous controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161256U true CN207161256U (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720487392.8U Expired - Fee Related CN207161256U (en) | 2017-05-04 | 2017-05-04 | A kind of wind electricity blade fatigue loading encourages isochronous controller |
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| CN (1) | CN207161256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749408A (en) * | 2019-11-09 | 2020-02-04 | 山东理工大学 | Multipoint excitation equipment and method for hundred-meter-level wind power blade fatigue test |
| CN112414697A (en) * | 2021-01-25 | 2021-02-26 | 南昌工程学院 | Wind power blade degree of freedom fatigue loading control method, device and system |
-
2017
- 2017-05-04 CN CN201720487392.8U patent/CN207161256U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749408A (en) * | 2019-11-09 | 2020-02-04 | 山东理工大学 | Multipoint excitation equipment and method for hundred-meter-level wind power blade fatigue test |
| CN112414697A (en) * | 2021-01-25 | 2021-02-26 | 南昌工程学院 | Wind power blade degree of freedom fatigue loading control method, device and system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20200504 |