降壓變電站 的英文怎麼說
中文拼音 [jiàngyābiàndiànzhàn]
降壓變電站
英文
abspannwerk-
With the development of the electric power system, static - state reactive power compensators ca n ' t have met the requirements of the actual production and operation, and the trend to the fast and dynamic compensation for reactive power become greater and greater. since ertan hydroplant and 500kv transmission systems in sichuan power system have been operated, many power plants of load center are forced to halt during the high - water period, because the great deal of power is transmitted to far - distance load center. thus the load center loses voltage sustentation and the level of the system stabilization is debased greatly
四川電網的二灘水電站和500kv輸變電系統投入運行后，由於二灘水電站的大量電力遠距離輸送至負荷中心，迫使負荷中心的火電機組在豐水期大量停機，使負荷中心失去電壓支撐，大大降低了電網的電壓穩定水平；同時，因為四川電網中的無功補償裝置全為靜態無功補償電容器（或電抗器） ，這些設備只能在系統正常運行狀態下起到無功補償和電壓支撐的作用，而在電網出現事故時，不但不能起到電壓支撐作用，反而會促使電網電壓崩潰事故的發生。Firstly, the thesis briefly reviews the history of voltage and reactive power control technology, focusing on the defects of the equipment in use. then, with the theoretical analysis and the discussion on voltage and the characteristic of power system as well as the basic principle of voltage and reactive power control, the thesis makes a research on the character of voltage and reactive power control and interprets the controlling regularity of substation. in addition, with the consideration of the changes of transformer tips and the combined influence of capacity groups and reactive power and voltage, the thesis makes adjustment suggestion to the different operating - zones of voltage and reactive power
本文從降低網損和提高變電站自動化水平著眼，對變電站電壓無功控制應用方面的問題進行了研究，本文首先簡要回顧電壓無功控制的發展概況，著重指出了現有電壓無功控制裝置的缺陷；通過理論分析，在討論電力系統電壓、無功調節特點以及電壓無功總體控制原則的基礎上討論了變電站電壓、無功控制特性以及控制原理，給出了變電站電壓無功的控制規律；考慮了變壓器分接頭的變化及電容器組的投切對無功和電壓的綜合影響，針對電壓、無功的各種運行控制區域給出了相應調節策略。As the most effective means to increase the economics and reliability of power station, pumped storage power station with static frequency converter ( sfc ) for start - up is widely used in developed country. recently china also implements several pumped storage power station projects
抽水蓄能電站利用靜止變頻啟動（ sfc ）方式啟動，這種方式在啟動時產生諧波，對sfc裝置及同電壓級別的其它用戶產生影響，也會通過降壓變壓器向高壓傳遞，對高壓側的用戶產生影響。Aimed at conquering the local - searching shortcoming in ga, after establishing fuzzy regulation scale of normal voltage, a socalled on - site regulation expert anowledge based on the plantrstation concept in power systemis implemented to eliminate voltage / reactive power overlimit, to amer decrease investinentand to minimiting active power loss. 2
在給出合格電壓的模糊調整裕度的基礎上，提出採用基於廠、站概念的就地調整的專家規則進行輔助變異決策，以增強遺傳演算法的局部收斂性；所採用的專家規則主要包括越限校正、進一步減少無功設備投資和降低網損三個方面。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。Rank and congratulate on and reach web site of wanda electronics co., ltd. construction establish, the setting - up of our station is for facilitating the customer to dc - dc power module. darington, silicon controlled rectifier, igbt, of effect, intelligence, silicon controlled rectifier transfer speed, solid state, step down module, rectification bridge, three - phase bridge series, air blower, frequency conversion, etc
熱列祝賀萬達電子有限公司網站建設成立，本站的建立是為了方便客戶對dc - dc電源模塊達林頓可控硅igbt場效應智能可控硅調速固態降壓模塊整流橋三相橋系列風機變頻等各種功率模塊的需求，歡迎您的到來。In the last part of this paper, a new control theory based on fuzzy neural network of substation voltage and reactive power synthetic control is presented. besides the guarantee of reactive power equilibrium and voltage quality, this theory can minimize the oltc tap _ changers " operation times. in order to avoid the frequent action of oltc tap _ changers caused by voltage fluctuation, inverse - time is introduced to this system that enhance the quality of voltage
最後將基於神經網路的模糊控制引入變電站電壓無功綜合控制策略，在保證無功基本平衡和電壓合格的前提下，使oltc分接頭的動作次數降至最低，並引入反時限概念，解決了因電壓波動引起的頻繁動作，最大限度的提高了電壓合格率。This article has discussed the control problem in a distribution substation and on the distribution line respectively. reactive power / voltage control in a substation using general approach usually results in the voltage of the second side being too close to the boundary. it will make the ability of enduring the variation of load in a system decrease a lot and become the threat of the system
本文分別對配電系統中的變電站及配電線路的無功電壓優化控制問題進行了研究，採用常規方法進行變電站電壓無功控制時，往往使二次側電壓過于接近邊界而導致系統承受負荷波動的能力大大下降，成為系統安全運行的隱患。分享友人