外文翻譯---wincc在供熱站恒壓供水監(jiān)控系統(tǒng)中的應(yīng)用-其他專(zhuān)業(yè)-資料下載頁(yè)
【導(dǎo)讀】系統(tǒng)采用變頻調(diào)速方式自動(dòng)調(diào)節(jié)誰(shuí)笨點(diǎn)擊轉(zhuǎn)速或加、減泵。調(diào)節(jié)器、壓力傳感器、液位傳感器、動(dòng)力控制線路等組成，用。在基于PID的控制方式下，操作人員在操作界面設(shè)定供水壓力，PLC. 服務(wù)器的工業(yè)以太網(wǎng)通訊網(wǎng)卡采用西門(mén)子公司的CP1612.供熱站使用Wincc組態(tài)軟件主要監(jiān)控恒壓供水系統(tǒng)和輸煤廊兩部分。檢測(cè)恒壓供水和輸煤廊運(yùn)行設(shè)備的各項(xiàng)參數(shù)，實(shí)現(xiàn)。實(shí)時(shí)數(shù)據(jù)的采集、上傳、實(shí)時(shí)顯示和記錄。控制機(jī)組運(yùn)行、故障的自動(dòng)停機(jī)和報(bào)。運(yùn)行;變頻器再啟動(dòng)3號(hào)泵運(yùn)轉(zhuǎn)，知道輸出水壓達(dá)到設(shè)定值為止。水量減少，則依照“先啟后?！痹瓌t一次將水泵切除。模糊控制具有不依賴(lài)。換時(shí)機(jī)計(jì)算機(jī)程序根據(jù)事先給定的誤差范圍自動(dòng)實(shí)現(xiàn)。屬函數(shù)采用三角形，根據(jù)現(xiàn)場(chǎng)經(jīng)驗(yàn)總結(jié)出模糊控制規(guī)則，如表1所示。程是離線進(jìn)行的，最終得到模糊控制查詢(xún)表，如圖2所示。進(jìn)入模糊控制子程序。最大節(jié)能效果，而且實(shí)現(xiàn)了恒壓供水的目的。變頻器在投入運(yùn)行后的調(diào)試是保證系統(tǒng)達(dá)到最佳運(yùn)行狀態(tài)的必要手段。
【正文】 e process for finding inquiries on the questionnaire process. Parametric Selection of Frequencywater system a reasonable selection pressure control parameters constant pressure to achieve energysupply system. The realization of is this objective the key is pressure control parameter selection, usually pipe work pressure control point two choice: a pipe work is the most negative pressure on constant pressure control and the other is the constant pressure pump outlet. pressure control. How will the two choices, we have to analyze simple Network pressure on the most disadvantaged constant, the water pipe work by QMAX reduced to Q1, pumps reduce speed, and water characteristic curve of A (unchanged) at the intersection point C, pump characteristic curve downward, work pressure on the most disadvantaged H0. And the pump outlet pressure constant pressure control, Ha unchanged, reduce water consumption by QMAX QI and Ha to pay to point B, water characteristic curve upward A through B, the work most disadvantaged Hb pressure into points. HbH0 lift the poor namely, energy waste, so I chose the most disadvantaged work points for the smallest head pressure control parameters. Formation pressure on the closedloop control system, making the pump speed and PID regulator set pressure match, achieve maximum energysaving effect, but the constant pressure to achieve the purpose of water supply. the converter and put into operation after the missioning of the system to ensure optimum operation of the state means necessary. According to the inverter load inertia size of the start and stop the motor when the time is not the same, Set time is too short to be accelerated when the inverter overcurrent, overvoltage decelerating protection。 Set time will lead to excessive speed converter running in the system bee regulate slow, delayed response, contingency ability is poor. Yi system at the state shortterm instability. To protect the converter is not tripping, the scene of many of them using converter increases deceleration time setting too long, the problems they bring very easily be the appearance of the normal equipment and hide, but the converter operating in lessthanoptimal state. So the scene when used according to the load driven by a different nature, testing out the permission of the shortest load increases deceleration time, setting. For the pump motor, plus deceleration time in the choice between seconds.
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