The substation voltage and reactive power control approach are studied and adopted at large in the meantime 同時,對有載調壓變壓器和電容器組的控制方法,也得到廣泛的研究和應用。
In addition , the instantaneous reactive power theory and it ' s application to reactive power control and detection are introduced 另外,論文還介紹了瞬時無功功率理論及其在無功控制和無功檢測方面的應用。
The paper workout the calculating software for voltage and reactive power control substation at the basis of fuzzy neural network . , and finish emulation model calculating process 在進行研究的同時,還編制了利用模糊神經網絡的變電站電壓、無功控制計算軟件,并進行了仿真計算。
Based on the strategy the automatic voltage and reactive power control device was developed . the device is controlled by microcomputer and can adjust the ratio of transformer and switch the capacitor automatically according to operating condition 在此基礎上,研制成功了變電所電壓無功自動控制裝置,裝置以微處理器為控制核心,可根據實測的母線電壓和負荷功率因數,自動進行主變分接頭調整和補償電容器投切。
In power system , it can effectively improve the voltage and decrease the real power loss that coordinated control the transformer tap and the compensatory capacitor of the region network . the voltage and reactive power control makes the running of the systems more safe and stable and economical 在電力系統中,對地區電網中的有載調壓變壓器和補償電容器進行協調控制,能夠有效提高電壓水平、降低有功功率損耗,對系統的安全穩定經濟運行具有重要意義。
Aimed to the above mentioned defects of reactive power compensation devices being used widely up to now and no value of practical application , the article described the principle of compensation reactive power controlled by intellectual static auto - compensation system which is of every phrase active power compensation and three phrase balance compensation 針對這些實用性不強的無功功率補償裝置,本文提出了采用靜止式無功功率自動補償分相控制的系統總體方案,使補償響應速度和補償精度大為提高。
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。
This paper analyses the shortages of several calculate methods for voltage and reactive power control and several control approach applied in fact in substation nowadays , and put forward one new approach for the control of voltage and reactive power in substation by at the basis of fuzzy neural network theory ( fnn ) 本論文對分析了目前電壓無功優化控制的計算方法和在實際中應用的變電站電壓、無功的幾種控制方法存在的不足之處,并提出一種基于模糊神經網絡的變電站的電壓、無功控制的新方法。
Detaildiscussion and partition of it is given according to the research contellts , methods , tfor spanand objective function etc . the method applied here , genetic algorithin ( ga ) for reactivepower planning problem and interior point method ( ipm ) for quasi real time voltage / reactivepower control are separate surnmarized fully and comprehensively hence , two aspects ofreactive power operating optimization , i . e . optimal reactive power compensation planning andquasi - real time voltage / reactive power control are studied in detail in this thesis withintelligent method , such as fully mathematic and expert system etc . , integrated 本文從無功優化問題的研究內容、研究方法、時間跨度和目標函數等方面進行了詳細的探討和劃分。在對本文采用的無功規劃優化的研究方法?遺傳算法和無功/電壓控制的研究方法?原-對偶內點法進行綜述的基礎上,提出根據電力系統的特點、結合模糊數學和專家系統等智能方法對無功運行優化中的規劃優化和無功/電壓控制兩類問題進行理論和應用研究。
Based on the actual background of jinhua electric power and the application level of business intelligence ( bi ) technology , the construction objective supplementary decision system of operational analysis in jinhua electric power is determined . the useful data acquired by etl tools will be concentrated in data warehouse or data markets . decision proposal will be made on electric equipments maintenance , reactive power control , electric line operational analysis , equipment defect prevention and control and electric power fault diagnosis by adopting dw , olap and dm technologies 針對金華電網運行生產的實際情況,結合當今業務智能技術( bi )的應用水平,金華電網運行分析輔助決策系統的建設目標是:在全局數據中心集中存儲和管理經過清洗、抽取后各種有用信息,并在數據集中的基礎上,采用數據倉庫( dw ) 、聯機事務分析( olap )和數據挖掘( dm )等技術對大量的數據和信息進行分析和挖掘,提出有益于電力設備檢修、電壓無功優化、線路運行分析、缺陷預控和故障診斷等的決策建議。