基于labview的虛擬儀器外文翻譯-全文預(yù)覽
【正文】 nterface of the WindSolar Power SystemThe objective is to transform the six experimental variables: DC voltage, DC current, AC voltage, AC current, wind speed, and wind direction into a form readable by the puter, display and store the results in real time . The DC power and AC power need to be calculated and monitored through the other predetermined variables using LabView’s programming capabilities. The signal conditioning hardware to condition and isolate the voltage and wind information signals before being connected to the DAQ board will play a significant role in the virtual instrumentation of the overall system. The instrumentation phase of the windsolar power station includes the following hardware: One CR411010 True RMS AC Current Transducer and one CR5210 50 DC HallEffect Current Transducer from CR Magnetics, voltage and current divider and scaling circuits, one wind monitoring device called anemometer, a LabView 6i Professional Development System for Windows NT/98, one PCI6071E I/O Board, one NIDAQ Driver Software, one SH 100100 Shielded Cable, SCSIII Connectors, one SCB100 Shielded Connector Block, one isolation amplifier circuit, and a PC. A DMM and an oscilloscope to check the analog signals would also be very useful. Figure 2 illustrates a block diagram of the overall instrumentation system. DC voltage generated by four solar panels and one wind generator is applied to the battery bank.A Young 05103V Anemometer provides two voltage signals corresponding to wind speed and wind direction values. These wind signals are fed to AD21OAN Isolation Amplifiers and the output is applied to National Instrument’s SCB100 Data Acquisition Board (DAQ). Two voltage signals, one from battery output and one from inverter output are also applied to isolation amplifiers through their corresponding voltage dividerscaling circuits. Two current signals, one from battery output through a DC HallEffect current transducer, and the other from inverter output through one true rms AC current transducer are fed directly to the DAQ board. The CR 521050 DC Halleffect current transducer may provide 0 V DC for an input current of 050 A DC. Similarly, the CR 411010 AC current transducer may provide a signal of 05 V DC for an input current of 010 A AC. Figure 3 depicts the inverter and AC load bank whi
范文總結(jié)相關(guān)推薦
鄂ICP備17016276號-1