饋電系統 的英文怎麼說
中文拼音 [kuìdiànxìtǒng]
饋電系統
英文
feed system-
After analyzing several kinds of protection for feeder line in subway dc traction power supply system, it is pointed out in the paper that the phenomena of refusing action and error action can not be avoided with existing protection which can not protect the whole feeder line
摘要分析了地鐵直流牽引供電系統中幾種常用的饋線保護類型，發現現有的保護方法很難避免跳閘保護拒動或誤動現象的發生，並且不能保護饋線的全長。Speed mode control of variable - speed constant - frequency wind energy generation system with double fed induction generator
變速恆頻雙饋風力發電系統的速度模式控制Thus, objective of this project is to improve the functionality and efficiency, and mitigate the drawbacks of a variable speed generation system or asg ( adjustable speed generator ) in conjunction with a dfig ( double fed induction generator ), which is frequently named as variable - speed / constant frequency ( vscf ) generation system
本文的研究目的是改進雙饋電機變速發電系統或變速驅動系統的的功能和效率，減輕系統缺陷所帶來的危害。雙饋電機變速發電系統通常又稱為變速恆頻發電系統（ vscf - variablespeedconstantfrequency ） 。In this paper, a coordinated recovery strategy for multi - infeed hvdc system is proposed
提出了一種針對多饋入直流輸電系統的協調恢復控制策略。This dissertation proposes a new approach to nonlinear active and reactive power modulation control design for multi - infeed hvdc systems, which realizes the emergency power support to ac system in the presence of large disturbances occurred in ac system
將己有的基於線性方法的有功及無功調制策略由單饋入直流輸電系統推廣至多饋入直流輸電系統，並提出一種非線性的有功及無功調制方法。With the increased use of hvdc transmission systems in power systems, situations have arisen and will be even more frequent in the future, where sigle - infeed hvdc system with a parallel ac line and several hvdc systems are located in close of each other
隨著hvdc輸電系統在電力系統中投入越來越多，交直流並聯系統和多饋入hvdc系統正在逐漸增多。在這種情況下，交流系統和直流系統，不同的hvdc系統間都將存在相互作用。I. e. strong coupling critical admittance and weak coupling critical admittance that affect the occurring conditions and types of commutation failures in multi - infeed hvdc system, are defined in this paper. factors which has great influence on the above two parameters, such as ac system strength
針對一個典型的多饋入直流輸電系統，首次定義了影響多饋入直流輸電系統中換相失敗及其發生類型的兩個重要參數，即強耦合臨界導納和弱耦合臨界導納。The characteristics of wind turbine generators as well as features of the fixed pitch wind turbine generator and the variable pitch wind turbine generator are presented, emphasizing on the variable speed constant frequency ( vscf ) generating system based on doubly - fed generators and on the control system for pitch angles
在簡述風力機特性的基礎上，介紹了定槳距和變槳距發電機組的特點，重點分析了基於雙饋發電機的變速恆頻發電系統及槳葉節距角控制系統。Study on mathematics model and simulation for feed power system non - three phase running
饋電系統非全相運行的數學模型及其模擬Then a new type of non - uniform fdtd scheme is used to analyze a thin slot. numerical results show its validation and efficiency. the analysis of complicated power division networks can be realized with a new scheme presented in this thesis, which combined the fdtd method with the generalized network connection theory
復雜功分網路比較難于運用數值方法直接進行整體模擬，因此本文提出了fdtd結合廣義網路連接理論分析復雜饋電系統的思想，應用該思想具體分析了一個隔板h - t功分網路的s參數特性，從而實現了復雜功分網路的數值模擬。Lastly, a kind structure of vivaldi antenna and new style feed system are presented and the effects of vivaldi antenna ’ s various parameters on radiation performances are discussed in detail though theoretical analysis and optimization design. accroding to the result of design, the experiment of prototype is fabricated
然後，本文提出了一種vivaldi天線結構及其新型的饋電系統，通過理論分析、模擬優化設計，詳細討論了vivaldi天線的各種參數對輻射性能的影響。根據設計結果，完成了實驗樣機的製作。Specification for interconnection of radio and tv receivers to feeder system outlets
收音機和電視機與饋線系統引出線互連規格It combines feeder automation, and develops the fault identifying principle from one direction to two direction. so it enhances the redundancy of fault information, and improves the reliability of the fault location. we choose the transient zero current prior to others, for it is bigger than others mostly
本文敘述了饋線系統保護原理，提出了基於饋線自動化系統的幾種單相接地故障處理方案，討論了這幾種方案下故障特徵量的比較方式，分析了故障特徵量選用的出發點以及配電終端地址命名規則等問題。It is necessary to study the mechanism of harmonics generation, make sure the content and distribute of harmonics current in order to alleviate their harm to traction power system ' s component, equipments of protect and measure as well as other customer ' s electronics equipments
為了從根本上抑制電力牽引負荷諧波帶來的影響，削弱諧波對牽引供電系統主元件、保護測控裝置和其他用戶電子設備的影響，有必要研究電氣化鐵道牽引諧波產生的機理，確定饋線電流諧波的含量與分佈狀況。This article makes theoretical and experimental research on an active vibration isolation system based on piezoceramic actuator. the whole system consists of piezoceramic material as the actuator, a shaker as the disturbance source, a double - layered vibration isolation system as the controlled object. the system introduces state - variables - feedback control methods carried out by an analog circuit
壓電式主動隔振系統是由壓電陶瓷作為作動器，激振器作為干擾源，雙層隔振系統作為受控對象組成的機電系統，其中控制方法採用狀態變量反饋，硬體電路採用模擬電路加以實現。Firstly, it presents the principle of vscf wind power, and compares the const - speed const - frequency ( cscf ) and vscf. also it builds the mathematic model of all section of vscf double - fed wind power generation system on two - phase synchronous rotation coordinate. secondly, the thesis gives the characteristic of torque and the steady - state analysis of vscf double - fed generator
文中介紹了變速恆頻風力發電的原理，比較了恆速恆頻和變速恆頻的區別，給出了雙饋型變速恆頻風力發電機在二相同步旋轉坐標系下的數學模型以及風力發電系統其它各部分的數學模型。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。The behavior principle of ddl protection for dc feeder in dc traction current supply system and the setting principle of protection parameters are introduced and illustrative examples are given
摘要介紹直流牽引供電系統中直流饋線ddl保護的動作原理，以及保護參數的設定原則，並舉例說明。Based on the reference [ 22 ], the dynamical modeling converters for hvdc system have been transformed to a nonlinear system represented by input - output model with unmodeled dynamics and bounded disturbances, and a robust adaptive output - feedback nonlinear controller is designed. the controller counteracts the uncertain dynamic nonlinearities and bounded disturbances by nonlinear damping terms, and unmodeled dynamics by a dynamic signal
本文在文獻[ 22 ]的基礎上，對高壓直流輸電系統換流站動態模型進行變換處理，將其化為一類具有含未建模動態和有界擾動的輸入-輸出非線性系統，並設計了一種魯棒自適應輸出反饋控制器，利用非線性阻尼項來抑制系統的動態不確定性和有界擾動，引入一動態信號來抑制系統的未建模動態。The main contents list below : firstly, it clarifies the basic concept, economic benefit, necessary, and the developmental general situation of the distributing electricity automation technique, and puts forward the main problem that will be discussed more detail in the following chapters
本文的主要內容如下：首先探討了配電自動化技術的基本理論、經濟效益、必要性、國內外發展概況及本文將要研究的主要問題。其次提出了配電系統中配電自動化的接線方式、通信方式、饋線自動化。分享友人