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P PID控制器有4个主要的参数K p、T I、T D和T S需整定,无论哪一个参数选择得不合适都会影响控制效果。在整定参数时应把握住PID参数与系统动态、静态性能之间的关系。
在P(比例)、I(积分)、D(微分)这三种控制作用中,比例部分与误差信号在时间上是一致的,只要误差一出现,比例部分就能及时地产生与误差成正比的调节作用,具有调节及时的特点。比例系数K p越大,比例调节作用越强,系统的稳态精度越高;但是对于大多数系统,K p过大会使系统的输出量振荡加剧,稳定性降低。
积分作用与当前误差的大小和误差的历史情况都有关系,只要误差不为零,控制器的输出就会因积分作用而不断变化,一直要到误差消失,系统处于稳定状态时,积分部分才不再变化。因此,积分部分可以消除稳态误差,提高控制精度,但是积分作用的动作缓慢,可能给系统的动态稳定性带来不良影响。积分时间常数T I增大时,积分作用减弱,系统的动态性能(稳定性)可能有所改善,但是消除稳态误差的速度减慢。
微分部分是根据误差变化的速度,提前给出较大的调节作用。微分部分反映了系统变化的趋势,它较比例调节更为及时,所以微分部分具有超前和预测的特点。微分时间常数T D增大时,超调量减小,动态性能得到改善,但是抑制高频干扰的能力下降。
选取采样周期T S时,应使它远远小于系统阶跃响应的纯滞后时间或上升时间。为使采样值能及时反映模拟量的变化,T S越小越好。但是T S太小会增加CPU的运算工作量,相邻两次采样的差值几乎没有什么变化,所以也不宜将T S取得过小。
Phoenix Contact 02016632 0043
SIEMENS 3SB38, Control Panel with light button
RITTAL SV9342.700 /SV9342700, Connection Adapter
FESTO 33018, HE-3/8-S-B, Einschaltventil
KLOECKNER MOELLER Xpole FAZ-C10 + FAZ-XHI N11, circuit breaker
KLOECKNER MOELLER Xpole FAZ-C13/1, circuit breaker
114121 68714, Siphonwith viton seal
HARTING, circular connector M8 with HARAX (1PU=2Pcs.)
RITTAL 7240.260 / 7240260, Socket Strip,
SIEMENS 3RT1 926-2GJ51
OMRON E32-TC200E
SIEMENS 3SB10 00-4SG01
ALLEN-BRADLEY 800T-XA2
Jean Müller Sicherung / Fuse NH1 200A aR660V
Jean Müller NH1 315AaR 660V, Sicherung
Weidmüller RD9M, Schnittstellenmodul Sub-D
REXROTH R117500153,socket / plug
LEGRAND 0200-7964 circuit breaker P 344
000000-1515-839 opticalcable
Pepperl+Fuchs NCN20+U1+N0 (106621S)
Siemens 3RV1011-0GA10
FESTO 345 395 B9 Manometer
MANZ 024 AT 5/375 drive belt
0049D09, thermocouple
FSI 906959-001, 400-A/N290234, I/O Schnittstelle
FESTO SME-10-S…/K…
FESTO 213287, SME-8M-24V
AVL YM4006, pipelineVentil 3W
AVL TXBV2595, cable
MATSUSHITA AT2423, MHP-YC-3M-AC100V
ELDON ETR 202, Thermostat NC heating
ELDON ETR 201, Thermostat NO cooling
AVL BB0828SP, lamp element
PHOENIX ConTACT 2726272, IB IL 24 DO 16,Inline Klemme
MURR 55762, Profibusconnector
VIPA 972-0DP10 PROFIBUS plug
Phoenix Contact 02016632 0043
SIEMENS 3 SB 38 Control Panel with light button
INA GG.ASE09 Stehlagergehuse / Housing+ GRAE 45 NPP-B
RITTAL SV9342.700 /SV9342700, Connection Adapter
10x ELGES / INA RU 61800-2Z (618002Z) Rillenkugellager
Ketternrad / Sprocket A006-168-36, Z14 T9, 525 B=20
HARTING, circular connector M8 with HARAX (1PU=2Pcs.)
KLOECKNER MOELLER Xpole FAZ-C10 + FAZ-XHI N11, circuit breaker
KLOECKNER MOELLER Xpole FAZ-C13/1, circuit breaker
114121 68714, Siphonwith viton seal
SIEMENS 3RV14 21-0EA10
PULSOTRonIC 9863-5830 induktiver Sensor
MURR 7000-40341-2240200, Rundsteckverbinder
SIEMENS 6ES5 705-0BB20 SIMATIC S5 cable : 1
Siemens, 3SB1000-4LN20, Bettigungselement
FESTO 345 395 B9 Manometer / pressure gauge
SIEMENS 3RH2122-1AB00 Hilfsschuetz BGR. S00
Switch 2A / 250V - 4connector (1PU=20Pcs.)
ELDON ETR 201, Thermostat NO cooling
JAPAN SERVO U129A-2 inductionmotor
ABB S202/B10 Sicherungsautomat
SIEMENS 3RV14 21-0EA10
REXROTH BOSCH GROUP0608 830185 BL 0.5
Suco 0161-438-14-1-001, Membrandruckschalter
FLUOROWARE UE16FN-1Winkeladapter
SIEMENS 3RV1421-1AA10
SKF 6306-2RS1 deep groove
TURCK Montagesockel/ Mounting base, CP40
PA6, Rundbürsten D=70/33, L:100mm, D:70(1PE=5Stk.)
SKF 6208-2Z/C3HT , deep groove ball bearing
FESTO 536203, ADN-12-70-I-P-A-Q-5K8
Thermocoax Thermocoupler 2ABI15/219 nm/TI/DI/2AB351 FF229 AS
Telemecanique ZC2-JD18, Gehuse
Switch 2A / 250V - 4connector (1PU=20Pcs.)
Nanaboshi 3-pol. Buchse / Male, NCS-30
FESTO 33018, HE-3/8-S-B, On/Off Valve
NSK H309 Gehuselager
SIEMENS 3RT1 926-2GJ51 AUXILIARY SWITCH BLOCK
JAPAN SERVO U129A-2, inductionmotor
SKF SIK 820F DE W14, swivel head
OMRON E32-TC200E , photoelectric sensor
AMERICAN PEOTONE 75CDVS-10, UDR 12 10,Zylinder L: ca. 37cm
WHNER 32 441, EEC6032-L, Sammelschienenadapter
OLIVER DESIGN Zylinder L: ca. 30cm
SIEMENS 3SB10 00-4SG01 Actuator
SIEMENS 3RT1956-4BA31 Parallelschaltverbindung
FEMA HonEYWELL DNM 1
Buschjost BO1001968,063.003907, A632208067303
FSI 906959-001, interface I/O terminatorblock
Fiber Schreiberstift/ Tip Pen 701 G, F51.213 (1PE=5Stk./1PU=5Pc.)
Fiber Schreiberstift/ Tip Pen 701 BL, F51.213 (1PE=5Stk./1PU=5Pc.)
Thermocoax Thermocoupler 2ABI15/219 nm/TI/DI/2AB351 FF229 AS
GATES 7M800, Keilriemen
Fujikin Rückschlagventil valve C.100499 6.86 kPa 16.2 MPa
PHOENIX ConTACT 2726272, IB IL 24 DO 16,inline terminal
FESTO VHER-BH-M04E-G14-UD Handhebelventil
RITTAL SV9342.260 /SV9342260, Anschlussadapter
Siemens, 6ES7 360-3AA01-0AA0, IM360, SIMATIC S7-300 Anschaltung
FESTO 33018, HE-3/8-S-B, On/Off Valve
NSK H309 Gehuselager
Festo, CPV10-M1H-2X3-GLS-M7, 161416, Magnetventil
TELEMECANIQUE 031850, XVA-C33
PULSOTRonIC 9863-5830 inductive sensor
USG Manometer 0-100psi, 0-700kPa
OMRON E32-TC200E photoelectric sensor
PHOENIX ConTACT 2708245, SUBCON-PLUS-PROFIB/PG/SC2, D-SUB-Busstecker
AVL BV2166DE, 4390V01./C00.0, Netzkabel
FUJIELECTRIC SC-N1/G
LEUZE IRK92/2-400S
SIEMENS 3SB10 00-4SG01
SKF 6205-2RSH
MURR 7000-40341-2240200
Siemens, 3RH1122-2KB40
FESTO 6682, OS-1/4-B, ODER-Glied
Kieback+Peter, DSIII, Kb4103019
SCHNEIDER ELECTRIC 014452, XVB C2B7
Siemens, 3RH1262-2BB40
FSI 906959-001, interface I/O