3BSE013064R1輸出個(gè)性模塊,3BSE013064R1產(chǎn)品重量
主要關(guān)注的是響應(yīng)時(shí)間和系統(tǒng)穩(wěn)定性
在確定控制器增益時(shí)。模擬控制調(diào)諧的目標(biāo)是在保持系統(tǒng)穩(wěn)定性的同時(shí)具有高頻響應(yīng)。液壓伺服模塊是一個(gè)比例積分微分控制器（PID）。PID控制器很容易滿足模擬控制調(diào)諧目標(biāo)。
PID控制器的導(dǎo)數(shù)作用增加并穩(wěn)定通過補(bǔ)償延遲時(shí)間的頻率響應(yīng)控制回路。
PID控制器很復(fù)雜，很難對(duì)其進(jìn)行調(diào)整。這個(gè)最常見的調(diào)諧方法（90%到95%的時(shí)間）
3BSE013064R1輸出個(gè)性模塊PID控制器是一種試錯(cuò)或?qū)嵱玫姆椒?。這個(gè)HSS模塊采用導(dǎo)數(shù)和積分作用設(shè)計(jì)常數(shù)（不可調(diào)）。調(diào)整是通過改變比例增益。增加比例增益降低系統(tǒng)穩(wěn)定性并增加頻率響應(yīng)。
實(shí)用方法發(fā)現(xiàn)增益低于導(dǎo)致不穩(wěn)定（振蕩）的增益。設(shè)置控制器增益的實(shí)用方法需要具有渦輪機(jī)控制經(jīng)驗(yàn)的獨(dú)立人員。單獨(dú)調(diào)諧該系統(tǒng)應(yīng)熟悉正常條件下的電廠運(yùn)行，了解汽輪機(jī)啟動(dòng)程序，并具有具有調(diào)節(jié)控制系統(tǒng)的經(jīng)驗(yàn)。如果閥門是與控制柜的距離或由屏障隔開，需要兩個(gè)人來調(diào)整系統(tǒng)。一個(gè)人觀察另一人設(shè)置控制器時(shí)閥門的操作獲得并輸入職位需求。建議通過電話或?qū)χv機(jī)進(jìn)行通信。對(duì)講機(jī)的射頻干擾可能會(huì)導(dǎo)致控制系統(tǒng)。如果使用對(duì)講機(jī)，請(qǐng)格外小心。
在對(duì)裝置進(jìn)行鍵控時(shí)，操作員應(yīng)至少兩人距離機(jī)柜米，機(jī)柜門關(guān)閉。
Response time and system stability are the primary concerns
in determining the controller gain. The objective of analog control tuning is to have a high frequency response while maintaining system stability. The hydraulic servo module is a
proportional plus integral plus derivative controller (PID). PID
controllers readily meet the analog control tuning objectives.
The derivative action of PID controllers increases and stabilizes
the frequency response by compensating for lag time in the
control loop.
PID controllers are complex and tuning them is difficult. The
most common method (90 to 95 percent of the time) of tuning
PID controllers is the trial and error or practical method. The
HSS module is designed with the derivative and integral action
constant (not tunable). Tuning is accomplished by changing
the proportional gain. Increasing the proportional gain
decreases system stability and increases frequency response.
The practical method finds the gain that is one level below the
gain that causes instability (oscillation).The practical method of setting controller gain requires an individual with turbine control experience. The individual tuning
the system should be familiar with plant operation under normal conditions, know turbine start-up procedures and have
experience in tuning control systems. In cases where the valve
is a distance from the control cabinet or separated by barriers,
two people are needed to tune the system. One person observes
the valve operation while the other person sets the controller
gain and enters position demand. Communication by telephone or intercom is recommended. The radio frequency interference from walkie-talkies can cause problems with the
control system. Exercise extreme care if using a walkie-talkie.
When keying the unit, the operator should be at least two
meters away from the cabinet and the cabinet doors closed.
