neutral bus 中文意思是什麼
neutral bus
解釋
中性母線-
Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method
在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。 -
This is a big complicated monitoring and control system, the article only discusses a part of the units, includes : the components of neutral beam injection and the requirements for monitoring and control system, the argumentation and selection of control scheme, the research of data acquisition system based on pci bus, the design and realization of hardware and software of dac, the means of concentrated data storage and management, the communication program design of subsystem under different mode and protocol. the last part gives some experiment system running data
這是一個大型復雜的監控系統，本文只就其中的幾個單元的設計與實現展開討論，主要內容包括：中性束注入裝置的組成及其對監控系統的要求，監控系統控制方案的論證和選擇，基於pci總線的小型數據採集系統的研製，多功能數據採集卡的硬體和軟體的設計與實現，集中式數據存儲與管理的方法及其實現，多功能子系統之間在不同通信方式、不同傳輸協議下的通信實現及其程序設計。 -
According to the practice on gezhouba to shanghai hvdc transmission project and in consideration of condition on three gorges hvdc project, some suggestions on protection of overvoltage and insulation coordination for outer insulation, against pollution - wet, dc neutral bus over - voltage and dc & ac filter are technically presented. it may be a reference in design of three gorges converter station
根據葛南直流工程的經驗並結合三峽工程的情況，在換流站的外絕緣、直流耐污濕技術、直流中性母線過電壓防護、交直流濾波器的過電壓防護等方面提出了過電壓和絕緣配合的技術要求，供設計參考。 -
The influences of bus - connected networks, different monitoring points, low voltage windings and types of neutral point grounding on the frequency responses of pd signals are analyzed which give suggestions for the selection of monitoring band and monitoring points and pd localization
分析了繞組的外聯網路、不同的監測點、低壓繞組、中性點接地方式等對局放信號幅度、頻譜的影響，為局部放電在線監測頻帶、監測點的選擇以及局放的定位提出了具體的建議。
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