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1、Distributed and modular measurement system provides flexibility and cost efficiency for mechanical load measurements (IEC61400-13) on wind turbines,Gantner-Instruments 中國(guó)有限公司(北京) 北京市通州區(qū)云景東路1號(hào)時(shí)尚街區(qū)園景國(guó)際大廈A座1508室 Tel: +86 10-59781872 / 59781873Fax: +86 10-59781872 / 59781873 轉(zhuǎn)802 Email: salesGantner-I W
2、eb: www.gantner-,Whats to do?,Distributed measurement and synchronized recording of all relevant quantitiesdynamic and acuracymechanical quantities in correlition/dependency with position and meteorological quantities,Conditioning of the recorded measurement data minimum, maximum, average, standard
3、deviation, data compression, data filtering, special methods (vect. avaraging), recognition and elimination of non plausible values,Saving of datalocally in the system or in a PC according configurable parameter (memory medium, redundancy, file size, format),Transmisson of the dataNetwork, Internet,
4、 GSM, Server/Client,Securaty and Remote Controlalarm function at not elought values alarm function at memory overrun, Watchdog, system start without personnel,Measurements for Mechanical Load Analysis (samples),Signal to measurePrinciple strain at blade edges / hubstrain gauges torque on the shaftst
5、rain gauges tilt momentstrain gauge yaw momentstrain gauge yaw positioncounter speed rpmfrequency azimuth anglecounter torsion nacellestrain gauge torsion top of the towerstrain gauge bending top of the towerstrain gauge bending bottom of the towerstrain gauge vibrationpiezo / voltage generated powe
6、rvoltage, current wind directionpotentiometer or counter wind speedfrequency temperature bottom and topPt100 humidityvoltage barometric pressurevoltage,fiber optic,hub,shaft,nacelle,tower bottom,Conditioning based on Application,calculation of the statistical values in a 10 min framemaximumminimumav
7、eragestandard deviation saving conditions (kind, location, redundancy) vectorial averaging of wind speed calculation od wind turbulences based on wind speed and wind direction monitoring of key measurements alarm management remote communikation (E-Mail, FTP-Client),10010110 00111001 01100110 1010001
8、0 10110001 00011010 11011101 01100011 11110101 00100010,10010110 00111001 01100110 10100010 10110001 00011010 11011101 01100011 11110101 00100010,Setup without PC in the turbine Data will be stored in the Test Controller, when indicaded with USB extension Higher reliability and availability Robust s
9、ystem (temperature, dust, EMC) Lower costs,Setup with PC in the turbine More flexibility because of variable software design Higher conditioning power Data redundancy (Controller + PC) More communication possibilities,Saving of Data,Saving of Data,Setup without PC in the turbine Signal conditioning
10、and data memory raw data recorded with 100 Hz calculation of the statistical values definition of the memory sections dynamic data 10 ms meteorological data 1 sec statistical data 10 min Memory capacity with100 channels at 100 Hz internal flash 4 Gbyte: 27 hours external HDD 1000 Gbyte: 28 days inco
11、mming amount of data 40 kbyte/sec In case the external medium will be changed the internal memory will be used automatically and after availability the data will be transfered.,Saving of Data,Setup with PC in the turbine,Conditioning and saving of the data using the server software test.node Test Co
12、ntroller provide the raw data Server Software test.node records the data synchronizes from one or more device calculation of the statistical values saving the data on a PC or in a data base (SQL) Online convertion of the binary data e.g. into FAMOS or MATLAB Visualization of the online- or the saved
13、 Data The saving of the data device or PC could happen redundancy.,Saving of Data,test.node,Saving of Data,Secure the memory function also with failing PC,Remote Reboot,Remote Reboot,Not everywhere it is easy to reach the turbine complete system can be rebooted without personnel whole system starts
14、working within 10 sec server software starts with adequate PC-configuration (auto start),Alarm Management,In case of not acceptable situations speed to high wind turbulences, unexpeted material stress others alarm will be released and mail will be send (FTP client, e-Mail.),Synchronized Recording in
15、 a Wind Park,The Measurement system can be synchronized using different media time signal, z. B. DCF77, IRIG over RS485, accuracy approx. 100 ms GPS signal, NMEA over RS232,accuracy approx. 0,2 s - 1 s SNTP over Ethernet (time server), accuracy depends on network load in case it is possible to connect the controller via RS485 together, an accuracy of +/- 2 s is possible.,Partner a
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