線路互感 的英文怎麼說
中文拼音 [xiànlùhùgǎn]
線路互感
英文
line mutual-inductance- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
- 互 : 代詞(相互;彼此) each other; mutual
- 感 : Ⅰ動詞1 (覺得) feel; sense 2 (懷有謝意) be grateful; be obliged; appreciate 3 (感動) move; t...
- 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
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This article has studied the deficiency and shortcoming of various kinds of methods of the parameter measurement of transmission line at present, proposed the measurement under operation on the basis of gps, researched gps application way and error that may appear in the power system synchronal sampling, put forward the parameter computing technology based on the information of both sides of transmission line, which solved some problems that exist in the parameter measurement, especially the problem that exist in the zero - sequence parameter measurement of transmission line with mutual inductance
本文研究了目前輸電線路參數測量的各種方法,分析了其中存在的不足和缺點,提出了基於gps的輸電線路參數在線測量方法,研究分析了gps在電力系統同步采樣中的應用方式以及可能出現的誤差,在同步采樣的基礎上提出了基於雙端信息的線路參數計算方法,較好地解決了輸電線路參數測量中存在的一些問題,尤其是多回互感線路零序參數測量困難的問題。The development of a visual short circuit software under ptcad2000 is presented in this paper, as well as the system structure, the definition of the data structure, the interface to ptcad2000, the conversion of the original wiring diagram of power network to calculable power network, the implement of three sequence network, the implement of impendence matrix and admittance matrix of power network considering the zero sequence mutual inductances among lines, and the implement of short circuit calculation by using computer
本文介紹了在ptcad2000平臺下短路電流可視化計算軟體的開發。介紹了軟體的系統結構、數據結構定義、與ptcad2000平臺的介面、電力系統原始接線圖轉成等值可計算網路、序網的生成、考慮零序互感線路阻抗時電網導納矩陣和阻抗矩陣的生成,以及故障點短路電流計算的計算機實現。The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,
基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式,電力系統的發展使得電流差動保護應用於線路保護成為需要,而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先,本文對目前線路保護的研究和實際應用情況進行了討論和分析,比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次,針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點,同時為加快差動保護的動作速度,對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析,結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護,對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。The characteristics : the unit is composed of high voltage parallel capacitor, serial reactor, switch ( disconnector, grounding switch, breaker etc. ), lightning arrestor, fuse, discharging coil, current transformer, insulator, busbar and steel bracket, includes two kinds of structure : frame type and cabinet type
產品特點:裝置由高壓並聯電容器、串聯電抗器、開關(隔離開關、接地開關、斷路器等) 、避雷器、熔斷器、放電線圈、電流互感器、絕緣子、母排和鋼架組成,裝置有框架和櫃式兩種結構。The spot responder system which is the necessary part of ctcs is analyzed in the dissertation and three key technologies of the channel in the responder system are researched. firstly, a new kind of rectangular plate magnetic inductive loop antenna is designed to transmit the power frequency. researching the near field inter - inductive characters, the relationship among the inductive efficiency, the perimeter and the conductor width of the antenna is found out
本文在對ctcs中的點式應答器系統原理及組成進行分析和消化的基礎上,對系統中通道的幾個關鍵技術進行了詳盡的研究,主要分為三個方面: 1 ,提出並研製了新型的片式環形磁感應天線,並對傳輸能量載波的天線的近場互感特性進行了分析,得到互感效率隨天線的周長大小以及導帶寬度的變化規律,並通過計算機模擬和試驗對天線的近場波瓣圖進行了研究;通過分析寬帶匹配技術中的實頻法理論,設計了信號載波天線的寬帶匹配網路。A new viewpoint to observe the relation of bus voltage, bus current injection and branch current of the network considering branch mutual inductance has been provided in this paper. the process of building the z - matrix of a large - scale power network is set forth in particular in this paper. and the method is employed in the fault computation system successfully
本文為了從演算法上提高故障計算的速度,在完全計及支路互感的前提下,利用節點注入電流與支路電流以及支路電流與節點電壓的關系,提出了一種能夠統一處理互感和無互感線路、快速形成大規模電網節點阻抗矩陣的新方法。Scientific computation visualization interactive virtual reality computer dynamic simulation etc., to study thoroughly and carefully on critical technologies such as mixed - language programming simplification of scene models displaying realistic image and animation of 3d scene models and so on in this dissertation, the methods to build scene models were studied and applied to develop a dynamic simulation system of 3d railway scene based on this idea, the major study contents and results can be summarized as follows : 1 ) mixed - language programming can complement each other between different programming languages and the method has a general significance and can become popular many computation models including development of dtm optimum of dtm and reorganization of dtm were developed with fortran language in order to use the ripe codes, the dissertation succeeded in integrating the developed fortran codes to the visual c + + environment and achieving the course of mixed - language programming 2 ) the methods to build scene models for 3d location design were discussed in the dissertation and the development and animation of scene models had been realized by applying synthetically those technologies such as computer graphic computational geometry and geometrical modeling and computer dynamic simulation etc, and adopting opengl 3d graph library then achievement was got by using the technology of 3d visualization to livingly express design results 3 ) combing with the concerned study and development projects, adopting vc + + as development tools and in the light of those theories and algorithms stated in this dissertation, a software, which could build scene models with realism for 3d railway location design, in the name of " the dynamic simulation system of 3d scene of railway " was developed., the correctness was proved by using the software to build the 3d scene models and achieve their animation of suining - chongqing railway and yunnan - xizang railway
本文綜合利用計算機圖形學、科學計算可視化、人機交互、虛擬現實、計算機動態模擬等理論和技術,針對混合語言編程、真實感圖形繪制以及三維景觀模型的動畫驅動等關鍵技術,進行了深入細致的研究,從而探討了建立逼真景觀模型的方法,並基於本文提出的方法研製了一個鐵路線路三維景觀動態模擬系統。基於這一思想,本文主要研究內容及研究成果如下: 1 )混合語言編程可以實現語言優勢互補,具有普遍意義。針對數字地面模型的建立、優化、重組等計算模塊是成熟的fortran程序代碼,本文成功實現了vc + +與fortran語言的混編; 2 )緊緊圍繞三維選線設計中景觀模型的建立方法展開研究,綜合利用計算機圖形學、計算幾何及幾何造型學以及計算機模擬技術,採用opengl三維圖形庫,實現了景觀模型的建立以及動畫驅動,使得三維可視化技術成功應用於選線設計成果的三維直觀表達; 3 )結合有關科研課題,利用vc + +開發工具,以本文所述的理論和演算法為基礎,研製和開發了一個建立三維選線設計逼真景觀模型的系統軟體- - 「鐵路線路三維景觀動態模擬系統」 。In this paper, we make a wide and profound investigation on the research schemes, the present status and the problems of optical powered battery. we put forward a new method based on the investigation to make the output voltage stable which is sampling the output voltage directly and then using the method of digital control to achieve the voltage - stabilizing
本文對光電轉換電源的研究方案、現狀及其存在的問題,特別是光電轉換電源作為混合式光纖電流互感器高壓側的電子線路的電源情況及問題進行了廣泛而深入的調研。At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss
然後對現有的演算法進行了詳細的分析、比較,篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案,確定了準同步采樣的方案,並通過對準同步采樣誤差的分析,提出了一種從45開始采樣,從而提高精度的采樣數據處理辦法,同時,對于電流互感器相位漂移提出了一種補償辦法,接著對裝置中電能質量分析與統計以及無功補償中電容器的補償量、投切原則也作了相應分析,其中對于無功補償採用y混合接線,並利用交流接觸器和固態開關共同投切電容,不但提高了經濟運行水平、改善了電能質量,而且有效的避免了頻繁更換開關,減少了經濟損失;最後,設計了裝置的硬體電路並繪制了相應的軟體流程圖。According to the actuality of the present research on ct, we bring forward a new design scheme based on the rogowski coil, in this design, the protection in short circuit failure and the measurement in normal condition are both fulfilled. it can also communicate with the computer through the communicating interface, sending the parameter of the system current and accepting the instruction
本文在考察了國內外電流互感器發展現狀的基礎上,提出了一種基於rogowski線圈的電流互感器,該互感器具有正常電流的測量和短路故障時的保護功能,並且預留了與上位機的通訊介面,接受上位機的指令並向上傳送電網的電流參數。At first, the dissertation author analyzes the measure method characteristic of three - phase three - line system and three - phase three - line system by power measure principle, and analyzes all kinds of power theft way, then concluding them to five styles : voltage style, current style, change phase style, enlarge error style, shunt style
論文從電能計量原理和準確計量方法入手,簡要介紹了電能計量的發展歷史,單相電路和三相電路的各種計量方式。其中重點介紹了三相三線經電流互感器和電壓互感器接入式和三相四線只經電流互感器接入式這兩種計量方式。The paper is concentrated on the new content - the transmission line theory that the field theory has still not involved. the paper gives a strict prove to the transmission line theory including mutual inductance and approves that the two integral forms of independent equations is not only applicable for lumped parameter circuits, but also for distributed parameter circuits
本論文在已有基礎上研究場論說尚未涉及的新內容? ?傳輸線理論,對包含互感的傳輸線理論作嚴格證明,並證實積分形式的兩組獨立方程組不僅適用於集中參數電路,而且也適用於分佈參數電路。A misoperation accident of zero sequence pilot protection happened recently in the guangdong power network due to the influence of zero sequence mutual inductance between power lines is analyzed in this paper
本文分析了一起在廣東電網近期發生的由於線路零序互感影響而導致的縱聯零序保護誤動事件。The technical requirements of the active electronic current transformer are described, and total designs on electronic circuit and integrated configuration are finished in this thesis. an experimental apparatus of electronic optic current transformer is manufactured in actual scale with 220 kv of rated voltage and 600 a of rated current
本論文對整個系統的各個部分提出了技術要求,並對電子線路的設計進行了總體規劃,設計了整機的結構方案,研製出了這種新型的有源電子式電流互感器的樣機。Fail and turn electric wire into of the distance in 110kv and above voltage high pressure and vltrahigh voltage of grade, the mutual inductor generally adopts the mutual inductor of electric current ( ct ) and voltage mutual inductor ( cvt )
在110kv及以上電壓等級的高壓和超高壓輸變電線路中,互感器一般採用電流互感器( ct )和電壓互感器( cvt ) 。電流互感器和電壓互感器在繼電保護中起著重要的作用。And to the electric capacity type voltage mutual inductor, because it compares with electromagnetic type voltage mutual inductor, transient state its bad to respond characteristic, as circuit when making the short circuit two times trouble, the voltage two times delays dropping to zero while needing to pass certain one
而對于電容式電壓互感器,由於它與電磁式電壓互感器相比,其瞬態響應特性比較差,當線路故障而使二次短路時,二次電壓需經過一定的時延後才能下降到零。As the third section is related with foundation fieldbus, the characteristics, architecture and function block of it is expatiated in this section. in the third section, i discuss the disadvantages of using wire media as physical layer media in traditional fieldbus on the basis of the first two section, and present a solution of substituting wireless bluetooth ? for wire media. in this solution the bluetooth ? gateway is presented by integrating bluetooth ? and fieldbus, the data collected by bluetooth ? sensor is transported to ff hse fieldbus by bluetooth ? gateway, and the control logic of ff hse fieldbus is realized by the same bluetooth ? gateway
在這種有線介質替代解決方案中,將藍牙技術與現場總線技術相結合提出了藍牙網關的概念,現場藍牙傳感器採集的現場數據通過藍牙網關應用傳輸到ffhse現場總線上,同時ffhse現場總線上的控制邏輯也可以通過藍牙網關來實現,從而實現了無線藍牙網路與有線ffhse現場總線的互連,同時在該部分中還對藍牙網關應用的設計和實現進行了闡述。In this paper, for the first time, it is proved that oct is an open loop system, so that the adaptive optical transducing principle on independent variables and the solenoid collecting magnetic field optical transducing principle are presented. based on the above two principles, the methods are gained to improve the precision and stability of oct, and the new adaptive optical current transducer ( aoct ) had been developed
本論文在深入研究oct的原理、結構和運行特性的基礎上,首次在理論上證明了oct是開環系統,並首次提出了獨立量自適應光學傳感原理和螺線管聚磁光學傳感原理,進而得到了提高oct測量精度和長期運行穩定性的有效方法…光電獨立量自適應光學傳感原理和螺線管聚磁光路結構,並以此研製成功了新型的自適應光學電流互感器( aoct ) 。This paper makes a study of the simple fault detecting of oil field power system realizing by computer, proposes to apply the theory of traveling wave location and has the clarity of mathematical model concept and high automation. to the power delivery system with many emitting branches, it has a practical sense to save computer operation period and memory, making software design and simulation
本論文研究油田電力系統簡單故障檢測的一種計算機實現方法,提出利用互感器模型的行波法測距理論,數據模型概念清晰,自動化程度較高,對架空輸電線路放射式分支路較多的電網能顯著節省機時和內存,並進行軟體設計與模擬,具有一定的實用意義。With the increase of the electric power system capacity as well as the short lines, high currents will possibly occur in the transmission line when a fault happens at the end of the line. the iron core of the current transformer ( ct ) will become saturated easily because of the large current, or when the secondary load of the ct does n ' t match the 10 % error curve
隨著電力系統容量增大以及短線的增加,在電力系統線路末端發生短路時,有可能出現很大的短路電流;在很大短路電流的作用下,或由於電流互感器二次側負載與10誤差曲線不匹配等原因,電流互感器鐵芯很容易飽和。分享友人