外文翻譯-變頻器在恒壓供水中的應(yīng)用-資料下載頁
2025-05-12 05:33本頁面
【導(dǎo)讀】的變化而頻繁的開停水泵中。這樣不但使電機(jī)工作在低效區(qū)、減短電機(jī)的使用壽命，而且電機(jī)的頻繁開停使。設(shè)備故障率很高，導(dǎo)致水資源嚴(yán)重浪費(fèi)，系統(tǒng)的維護(hù)、維修工作量較大。隨著高位生活用水和工業(yè)用水逐漸增多，傳統(tǒng)的控制方法已經(jīng)落后。原先用人工進(jìn)行水位控制，由于無法。有了一些改變，但由于機(jī)械裝置的故障多，可靠性差，給維修帶來很大的麻煩。變頻技術(shù)以其在節(jié)能與恒壓方面的優(yōu)越性能可以解決水壓控制系統(tǒng)存在的以上問題。PLC與變頻器結(jié)合為核心構(gòu)成的系統(tǒng)都能達(dá)到較好的控制效果。但在軟件設(shè)計(jì)上，PLC比單片機(jī)的編程更簡(jiǎn)。單，這樣更有利于售后服務(wù)人員掌握?；谝陨显颍x用了OMRON的CPM1系列PLC與ABB的變。制等方面均有非常好的效果，本文介紹了變頻器--PLC調(diào)控技術(shù)在水泵控制中的應(yīng)用。當(dāng)壓力達(dá)到調(diào)節(jié)器上限報(bào)警值時(shí)，調(diào)節(jié)器輸出降低，變頻器頻率降低，低到頻率下限設(shè)定值，流器、逆變器、電動(dòng)機(jī)、生產(chǎn)機(jī)械和控制系統(tǒng)等作為一個(gè)整體、從系統(tǒng)上進(jìn)行考慮的。
【正文】 ecision is high, usually can control in the scope. C:The structure is simple, the operation is simple. The installment control system uses the integration rate to be high, necessary plan nimble diverse, obtains water pump movement each kind of bination by the programmable controller. The velocity modulation scope is broad, to water volume change adaptiveness. D:The service life is long, the automaticity is high, does not need the human to safeguard, maintains the quantity to be few. Above system the effect is remarkable in the actual application, if brings in PLC and the frequency changer the programmer the function integration, potential bees some specialpurpose frequency changers, such system reliability and the toughness big enhancement, the application is simpler, the system total cost also can drop. May foresee: The future frequency conversion technology will be able to develop to the below direction: (1) high performance Thus including internal leveling circuit, the contravariant electric circuit all use the high frequency PWM electric circuit to cause the input, the output all are sine waves。 Uses the multidensification regarding the large capacity frequency changer and many machine is parallel。 Reduces frequency changer own loss, the realization high efficiency。 Realizes autotune or from the optimization, the remote control and controls far。 Even more faces the user, further enhances the workability and Maintainability: Turns towards, the featherweight development small, as well as reduces the cost and so on. (2) Intellectualization Including two aspects: Reduces the hardware as far as possible, realizes the hardware software。 Uses the intelligent electric power electronic device and other intellectualized part. The integration is the intellectualized foundation. (3) entire digitization In recent years, each kind of modern control theory, the expert system, the fuzzy control and the neuron control and so on all were the development hot spots, will cause the electric power electronic control technological development to a brandnew stage. Estimated the 21st century entire numerical control the application will be more widespread thoroughly, even will substitute for the simulation control. (4) systematization Frequency conversion technology development is inseparable from the development of related technologies, frequency conversion technology development in the 21st century is to grid, regulators, rely machine, electric motors, production machinery and control systems as a whole, from the system for consideration.
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號(hào)-1