無載電壓 的英文怎麼說
中文拼音 [wúzǎidiànyā]
無載電壓
英文
no load voltage- 無 : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
- 載 : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 壓 : 壓構詞成分。
- 電壓 : voltage; electric tension; electric voltage
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A three layered magneto - electro - elastic half - space subjected to vertical mechanical loads, charge or magnetomotive force is analyzed as the numerical example, and the calculative results of two different stacking sequences are compared
以在垂直機械載荷或電載荷或磁感應強度作用下三層半無限壓電壓磁彈性體為算例,並比較了兩種不同材料疊放順序的計算結果。In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 , and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory
由直流脈寬調速系統( pwm )和位置環構成的定位系統中,速度環的參數隨負載特性;電網電壓;給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 , 2 .因此在設計位置環的離散滑模控制時,必須針對速度環(即位置環的控制對象)的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ,以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果,本文作了對比性研究,並將該設計方法用於工業試驗中,取得了滿意的結果The behavior of three layered magneto - electro - elastic half - space subjected to horizontal mechanical loads is emphatically analyzed
著重分析了水平載荷作用下三層半無限壓電壓磁彈性體的行為。This paper describes mainly system functions, measuring methods, circuit design, software program and errors analysis of a new type of measuring instrument. this instrument can measure and monitor electric parameters in single - phase circuits, three - phase ( three - wire or four - wire ) circuits. this system can be applied to electric devices and power plants, transformer substations with harmonic pollution. it can measure current, voltage, power, energy, frequence, power factor etc. it also can detect load quality, phase sequence, alarm, display and print results, as well as detect and dispose negative power
該儀器適用於含有諧波污染情況下的機電設備現場、發電廠、供電局、企業變電所現場,可用來測量電流、電壓、有功功率、無功功率、視在功率、有功電能、無功電能、視在電能以及頻率和功率因數等電參數,並具有負載性質(感性、容性)判別,正、逆相序判別指示功能;超限報警功能;列印記錄功能和負功檢測及處理功能。Signs and luminous - discharge - tube installations operating from a no - load rated output voltage exceeding 1 kv but not exceeding 10 kv - part 1 : general requirements
無載額定輸出電壓大於1kv小於等於10kv的信號和輝光放電管設備.第1部分:一般要求Then the paper uses the same typical four network operating conditions as the primary given conditions and when adding one set of the parallel capacitor bank, changing the 330 / 220kv transformer tap changer position step by step to change the transformer ration, through this study methods this paper found out all the optimized combination of the tap changer position and the amount of input reactive power, also obtained four sets of the 330kv, 220kv and hokv s / s bus voltage and the active and reactive power losses changing curves. through analyzing the optimized combination control curve and the network power flow, the paper generalizes the rules as following : the chief measure of coordinative control is inputting shunt reactor in chengxian s / s in winter time both in the planning year of 2010 & 2005 ; in summer time in planning year of 2010 the chief measure is to input proper shunt capacitor
本研究通過分析所獲得的最優綜合控制組合曲線及電網潮流,總結出了如下規則:隴南電網在2005年及2010年冬大、以及2005年夏小運行方式下,綜合控制應以成縣變投入適量並聯補償電抗器作為主要措施;在2010年夏小運行方式下則投入適量並聯補償電容器作為主要措施,再輔助以選擇合適的主變有載調壓分接頭來調節,達到控制網內無功潮流分佈合理、各變電站母線電壓在理想的范圍內時電網有功損耗最小,從而也提高了電網安全運行水平及供電質量。With the consideration of most of our transformers " taps are changed manually and some fluctuate unnecessarily, this paper presents a supervision system of oltc based on plc control technique. then we combine this system with reactive power compensate device such as shunt capacitor to design a new supervision system of substation voltage and reactive power synthetic control based on plc fieldbus
針對國內變電站電壓調整大多依靠人工調節,且有載調壓變壓器( oltc )分接頭動作頻繁的特點,本文提出了基於plc控制技術的有載調壓監控系統的研製方法,並以此監控系統為基礎,結合併聯補償電容器組等無功補償設備,設計了一種基於plc現場總線的變電站電壓無功監控系統。Signs and luminous - discharge - tube installations operating from a no - load rated output voltage exceeding 1 kv but not exceeding 10 kv - general requirements
用無荷載額定值的輸出電壓大於1kv小於10kv的電源工作的標志燈和發光放電管裝置.一般要求Signs and luminous - discharge - tube installations operating from a no - load rated output voltage exceeding 1 kv but not exceeding 10 kv - requirements for earth - leakage and open - circuit protective devices
無荷載額定輸出電壓大於1kv小於10kv的標志和發光放電管裝置.接地漏電和開路防護裝置要求Signs and luminous - discharge - tube installations operating from a no - load rated output voltage exceeding 1 kv but not exceeding 10 kv - part 2 : requirements for earth - leakage and open - circuit protective devices
無荷載額定輸出電壓大於1kv小於10kv的標牌和發光放電管裝置.第2部分:接地漏電和開路防護裝置要求The study bases on the four operating conditions of which the longnan network will be implemented in the year of 2005 and 2010. first, this paper calculates the power flow distribution that including the line charging reactive power and input of the low - voltage shunt reactor in chengxian s / s. assumed that the bus voltage of tianshui s / s and bikou power plant to be constant, the study count the voltage level of the 330kv and 220kv bus - bar when the 330 / 220kv transformer in standard tap changer position. in order to set control rules
本文基於隴南電網在規劃發展水平年2005年及2010年的四種可能的運行方式下及潮流條件,計算出了計入線路充電無功及投入成縣變低壓並聯電抗器后的潮流分佈,在設定甘肅大網側及碧口電廠側母線電壓恆定條件下,計算了330kv及220kv主變在有載調壓標準分接頭變比下的330kv及220kv母線電壓水平。In order to ensure the whole system operate economically, power department equip transformer with onload tap changer and shunt capacitors for most distribution substations, according to the operating condition, adjusting the position of transformer taps and capacitors can control the variation of voltage and reactive power exchanger of distribution substations and power system in certain extent
為確保整個系統運行經濟性,降低網損,電力部門在大多數變電站配置了有載調壓變壓器和並聯補償電容器組,根據運行情況適當調節變壓器分接頭的位置和投切並聯補償電容器組,可以降低電壓變化和變電站與系統的無功交換控制在一定的范圍內,確保供電質量和電網運行的經濟性。The tap - changer is made with solid state relay as its working mechanism and controlled by microprocessor. this switch has totally cancelled the mechanical drive organization, by the microprocessor according to the voltage of second side microprocessor decide the working condition of solid state rely, high regulation speed, need not transition resistor, rush current is low. operating frequently ; there is no electric arc to produce, can put in the fuel tank of the voltage transformer directly ; the structure is simple, the fabrication cost is low, benefit and use widely among the voltages transformer of distribution
其中的有載調壓分接開關,它是一種完全由固態繼電器作為分接開關執行機構,由單片機控制的有載自動調壓的變壓器分接開關。該開關完全取消了機械傳動機構,由單片機根據變壓器二次側電壓的高低,決定與變壓器各分接頭聯接的固態繼電器的工作狀態。調節速度快,改變分接頭時不需過渡電阻,沖擊電流小,可頻繁操作;無電弧產生,可以直接放在變壓器油箱中;結構簡單,造價低,便於在配電變壓器中推廣使用。It is both a theoretic and a practical project. after analyzing several identification methods, the writer put forward a method based on t - model equivalent circuit. to consider the skin effect, the writer modified the t - model equivalent circuit, adding the skin effect coefficients
經過分析幾種常用的電機參數辨識方法,如頻響法,最小二乘法和卡爾曼濾波法等之後發現在本課題的前提條件? ?空載全電壓起動下無法進行辨識,因此藉助于電機的t型等效電路模型。Three - phase four - wire apf with one - cycle control need not sense the three phase load currents or the three phase voltages, need not calculate the harmonics and reactive current components, as well as the use of any multipliers
單周控制三相四線制有源電力濾波器不需要檢測三相負載電流和三相電源電壓,不需要檢測諧波和無功電流,也不需要使用任何乘法器。A modulated signal of tria ( tt / pw ) added by a normal noise. is demonstrated for 2 - d dependence of the waveform on time and trials and 2 - d dependence of spectrum on frequency and trials to show different time domain and frequency domain properties of a random process including noise and signal
以三角波電壓訊號加上準常態雜訊乘以無雜訊載波之調變訊號為例,圖示含有雜訊電壓訊號其波形隨時間及試驗之二維變動及頻譜隨頻率及試驗之二維變動,顯示雜訊與訊號之隨機過程在時域與頻域之不同特性。Technical parameter of s9 - 800 - 3150 35, 3 - phase, off - circuit tap - changing oil immersed power transformer
S9 - 8003150 35系列三相油浸式無載調壓配電變壓器Technical parameter of sz11 - m - 200 - 2500 10, 3 - phase, on - load tap - changing oil immersed distribution transformer
S11 - 302500 10系列三相油浸式無載調壓配電變壓器Without using mechanical potentiometer, the load voltage of the test mainframe can be putted on in the way of program control through the circuit board or through the cat software
負載電壓可以在電路板上或肛軟體中進行程式控制加載,無機械電位器,調節方便,輸出精確、穩定。After the analysis of power produce character of the typical three - phases unbalance load, the corresponding circuit is adopted. this main circuit is composed of the power filter series and tcr control circuit. secondly the theory of band - pass filter is analyzed in detail, and then a method of implementing butterworth band - pass filter is put forward
簡要分析了無功補償的基本原理和工作特點,通過對典型的三相不平衡負載工作特點的分析,主電路採用電力濾波器與晶閘管控制電抗器相接合的結構;對用於無功檢測的帶通濾波器進行了分析,設計了用於負載電壓、電流信號濾波的帶通濾波器,並採用運算放大器加以實現。分享友人