描述

PID控制器參數(shù)整定是控制系統(tǒng)設(shè)計(jì)核心內(nèi)容。它是被控過程特性確定PID控制器比例系數(shù)、積分時(shí)間和微分時(shí)間大小。PID控制器參數(shù)整定方法很多，概括起來有兩大類：一是理論計(jì)算整定法。它主依據(jù)系統(tǒng)數(shù)學(xué)模型，理論計(jì)算確定控制器參數(shù)。這種方法所到計(jì)算數(shù)據(jù)未必可以直接用，還必須工程實(shí)際進(jìn)行調(diào)整和修改。二是工程整定方法，它主要依賴工程經(jīng)驗(yàn)，直接控制系統(tǒng)試驗(yàn)中進(jìn)行，且方法簡(jiǎn)單、易于掌握，工程實(shí)際中被廣泛采用。PID控制器參數(shù)工程整定方法，主要有臨界比例法、反應(yīng)曲線法和衰減法。三種方法各有其特點(diǎn)，其共同點(diǎn)都是試驗(yàn)，然后工程經(jīng)驗(yàn)公式對(duì)控制器參數(shù)進(jìn)行整定。但采用哪一種方法所到控制器參數(shù)，都需要實(shí)際運(yùn)行中進(jìn)行最后調(diào)整與完善。現(xiàn)一般采用是臨界比例法。利用該方法進(jìn)行PID控制器參數(shù)整定步驟如下：

(1)首先預(yù)選擇一個(gè)足夠短采樣周期讓系統(tǒng)工作；

(2)僅加入比例控制環(huán)節(jié)，直到系統(tǒng)對(duì)輸入階躍響應(yīng)出現(xiàn)臨界振蕩，記下這時(shí)比例放大系數(shù)和臨界振蕩周期；

(3)一定控制度下公式計(jì)算到PID控制器參數(shù)。

歐美品牌停產(chǎn)的，常用的“PLC”備品備件

我司產(chǎn)品應(yīng)用于以下領(lǐng)域：

1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》

2,《智能平鋼化爐系統(tǒng)制造》

3,《PLC可編程輸送控制系統(tǒng)》

4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》

6,《化工廠藥液恒流量計(jì)算機(jī)控制系統(tǒng)》

7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動(dòng)化控制系列

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C70445 MEI Marpet Mech-El 779 Manual Epoxy Die Bonder

C70444 Mech-El 709 Manual Eutectic Die Attach Bonder

C70443 Mech-El 703 Manual Eutectic Die Attach Bonder

A55095 Edwards Vacuum Dry Pump QDP80 Drystar

A55059 Edwards Vacuum Dry Pump QDP80

A55060 Edwards Vacuum Dry Pump QDP80

A66347 Edwards Vacuum Dry Pump QDP80

K69002 SierraTherm 4K14-96-5A Conveyor Furnace

K69277 Quad / de Haart MPC-20 Screen Printer Untested

C60415 Unitek Micropull IV Wire Bond Pull Tester 1000g

C61654 Unitek Micropull IV Wire Bond Pull Tester RS232

N72714 Perkin Elmer Aanalyst 100 Atomic Spectrometer

N72711 Seiko D-Tran XM3106B Robotic Arm

C51193 Agilent E4406A Transmitter Tester w/ 202 300 BAF

N72004 Eppendorf 5804 Multipurpose Centrifuge w/Rotor

C52517 Agilent E4406A Transmitter Tester w/ 202 300 BAH

N59001 Unitek Micropull IV Wire Bond Pull Tester

N70041 Rainin Varian Dynamax SD-200 UV-1 FC-1 HPLC Sys.

AE43755 RECIF SA Wafer Scribe Reader IDLW8 System

C69112 Spectra Multi-Quad LMI Gas Analyzer w/ Turbo Vac

L65211 DEK 248ce Semi-Automatic Screen Printer

A41046 ADE Technologies DiskMapper Model M2 System

N63492 Fluke Networks Optiview Workgroup Analyzer

N67906 Tektronix RTPA2A TekConnect Probe Adapter NIB

A66346 Piller Apostar AS50 UPS System 50 kVA, 480V 85A

N53546 Perkin Elmer 300 Micralign Projec. Mask Aligner

C69602 Logitech 2125 Polishing / Bonding Jig

A58951 K&S 6491 Semi-Automatic Die Bonder

A71987 Varian Prostar Autosampler 420, 210, 325, 701

C54973 Agilent 16950A 600MHz State/4GHz Timing/4Meg Mem

C54587 Agilent 16950A 600MHz State/4GHz Timing 4Meg Mem

G53498 Two Alcatel IPUP A100L Dry Vacuum Pumps

N71355 Isel Robotik Wafer Handling Robot 10-21-0015

C72658 FST Fine Semitech Dual Recirculating Chiller

N71514 Leitz Wetzlar Trinocular Microscope w/Stage

N72005 Eurotherm TU1451 SCR Power Controller

C51174 HP E4406A Transmitter Tester 7MHz-4GHz w/Opt BAH

N59032 Signatone S-1007S Manual Probe Station S1007S

N63395 K&S 1470-4 Automatic Wedge Bonder

C51195 HP E4406A VSA Transmitter Tester w/BAH, 204, UK6

C51194 Agilent E4406A Transmitter Tester w/ Opt 202 BAH

G72332 Agilent G1314B VWD Variable Wavelength Detector

G72403 Heidolph Laborota 4001 & Heizbad HB Digital

G71854 NSK XY-HRS120-RH2SN?F Linear Stage w/Ballscrew

G72622 Brinkman Metrohm 784 KFP Titrino & 703 Ti Stand

K72692 Quester Tech. UFT10-02 Liquid Source Cabinet LSC

K72693 Cleansorb CS096DCD Dry Bed Absorber Cabinet

C55171 Agilent 16950A 600MHz State/4GHz Timing/1Meg Mem

A69921 (2) Balanced Power II BPII25 UPS System 25 kVa

N72803 (2) Christie Electrohome Roadie S12 Projectors

N57984 ABI Prism 6700 Auto Nucleic Acid Workstation

C70346 Veeco Dektek SXM Atomic Force Microscope Control

L67921 Hughes Wire Bonder System WD-8700D1

A69920 Leybold Coolpak 6200 Compressor w/ Cold Head

A63423 Bemco Inc. FC-77 Cart Environmental Pump System

A62562 Varian VE10 Vacuum Evaporator, Edwards E2M5

N58955 Signatone S-250-5 Wafer Prober w/ B&L Microzoom

N58956 3S 8013 Pick & Place Inspection Wafer Station

N69000 Instrumentation IL ACL 8000 Coagulation Analyzer

A50159 Tenney Six Engineering T6S Chamber 21*22*23H

N56306 Edwards EH500A Mechanical Booster Pump D90SD

Y70234 Crest Ultrasonic Cleaner & Ultrasonic Generator