suppression of harmonics 中文意思是什麼
suppression of harmonics
解釋
斜波抑制- suppression : n. 1. 鎮壓，撲滅。2. 抑制；隱匿；含蓄。3. 制止；禁止；刪除；【醫學】閉止；萎縮。
- of : OF ＝Old French 古法語。
- harmonics : n. 【音樂】和聲學。
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In chapter one developments of pumped storage power station in the world are investigated, and harmonics suppression method for sfc is surveyed. working principles of sfc used in pumped storage power station are introduced. in chapter two, harmonic standard is presented
本文第一章闡述了抽水蓄能電站和sfc裝置的工作原理及國內外已經建成或在建的大型抽水蓄能電站工程；討論了sfc裝置諧波問題及其危害；並介紹了五種諧波抑制方案。 -
According to the present actual underground power system which neutral point is grounded through arc suppression coil in many supper big shaft, the development history and present situation of synthetic protection system used in hv flameproof switchgear are reviewed, and on the basis of analyzing the problems existed in high voltage flameproof switchgear, the selective leakage protective method based on the detecting harmonic direction of zero sequence current as well as the value of zero sequence voltage is proposed in this paper, and at the same time, harmonics extracting schematic and transforming circuit are also designed
本文深入系統地研究了基於intel80c196kb單片機控制的6kv防爆開關綜合保護系統，主要內容如下：針對大型及特大型礦井供電系統中性點普遍採用消弧線圈接地方式的現狀，回顧了國內外礦用高壓防爆開關保護系統的發展歷史，分析了目前國內高壓饋電開關保護系統所存在的問題，提出了「基於零序電壓基波啟動，五次諧波功率方向比較」的選擇性漏電保護原理，設計了相應的五次諧波提取電路和功率方向鑒別電路。 -
Power harmonics of industry and its suppression with hybrid active filter
典型工業電網諧波及其混合有源濾波抑制 -
The list betterments aimed at the properties of system : through the testing of dc voltage, pulse width and inverting voltage and frequency can be regulated online to fit for different steady load ; reducing speed ripples by compensating with nonzero voltage working proportional time ; adopting the technology of harmonics suppression. as a result, the high precision and wide speed control is realized and the step out is overcome
針對系統的性能指標，做了如下改進：對直流側電壓的檢測，在線調整逆變器導通脈寬、輸出電壓和頻率，可以適應不同大小的恆負載；並用非零電壓矢量作用時間進行補償的方法，減小電機的低速脈動；加入了諧波抑制技術等。
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