基于labview的虛擬儀器外文翻譯-其他專業(yè)-在線瀏覽
2025-03-24 08:43本頁(yè)面
【正文】 g 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 which includes a Pentium III puter, a variety of energy efficient fluorescent lights, several incandescent lights, one electrical heater, and a fan. The total power rating of the AC loads is about 1400 W. The instrumentation system basically uses a puter whose power is supplied by wind and solar hybrid system. To view the displayed waveforms in actual ranges, the preconditioned signals require appropriate calibration using the arithmetic and/or logic function futures available in LabView? Figure 6 depicts the front panel of the data acquisition VI for the time period of 5:15 pm to 5:32 pm. As seen in Figure 7, the DC power has a value of W while the AC power has a value of W. The difference corresponds to losses through the inverter. The power generation and corresponding monitoring values increase up to 1500 W during full sun and/or wind conditions. The wind direction is shown as counter clock wise from north. An average wind speed of mph was recorded during the time period of 6:25 pm to 6:26 pm. The number of readings per minute can be adjusted through the palette as shown in the front panel. 。風(fēng)向?yàn)槟鏁r(shí)針從北。如圖 7 所示，直流電源具有值 當(dāng)交流電源具有值 4 W 的差對(duì)應(yīng)的損失通過(guò)逆變器。的交流負(fù)載的總功率約 1400 W 的儀器系統(tǒng)主要利用電腦的電源是由風(fēng)能和太陽(yáng)能混合動(dòng)力系統(tǒng)提供的。同樣， Cr 411010 交流電流傳感器可以提供一個(gè)信號(hào)輸入為一個(gè) AC。兩個(gè)電流信號(hào)，一個(gè)來(lái)自電池的輸出通過(guò)一個(gè)直流霍爾效應(yīng)電流傳感器，和其他從逆變器的輸出通過(guò)一個(gè)真有效值交流電流傳感器直接輸入到數(shù)據(jù)采集板。這些風(fēng)的信號(hào)被饋送到 ad21oan 隔離放大器和輸出應(yīng)用到國(guó)家儀器的 scb100 數(shù)據(jù)采集（ DAQ）。四太陽(yáng)能電池板和風(fēng)力發(fā)電機(jī)產(chǎn)生的直流電壓被施加到電池組。用示波器檢查模擬信號(hào)也將是非常有用的。信號(hào)調(diào)理硬件條件和隔離電壓和風(fēng)信息信號(hào)之前被連接到數(shù)據(jù)采集板將在整體系統(tǒng) 的虛擬儀器發(fā)揮重要作用。 3 計(jì)算機(jī)輔助測(cè)量和風(fēng)接口 — 太陽(yáng)能發(fā)電系統(tǒng) 目的是將六個(gè)實(shí)驗(yàn)變量：直流電壓，直流電流，交流電壓，交流電流，風(fēng)速，風(fēng)向成計(jì)算機(jī)可讀的存儲(chǔ)和顯示，實(shí)時(shí)的結(jié)果。
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