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單元機(jī)組控制系統(tǒng)一體化的崛起
　　隨著一些電廠將電氣發(fā)變組和廠用電系統(tǒng)的控制(ECS)功能納入DCS的SCS控制功能范圍，ETS控制功能改由DCS模件構(gòu)成，DEH與DCS的軟硬件合二為一，以及一些機(jī)組的煙氣濕法脫硫控制直接進(jìn)入單元機(jī)組DCS控制的成功運(yùn)行，標(biāo)志著控制系統(tǒng)一體化，在DCS技術(shù)的發(fā)展推動(dòng)下而走向成熟。
　　由于一體化減少了信號(hào)間的連接接口以及因接口及線路異常帶來(lái)的傳遞過(guò)程故障，減少了備品備件的品種和數(shù)量，降低了維護(hù)的工作量及費(fèi)用，所以近幾年一體化控制系統(tǒng)在不同容量的新建機(jī)組中逐漸得到應(yīng)用，如浙江華能玉環(huán)電廠4×1000MW機(jī)組、臺(tái)州電廠2×300MW機(jī)組和安徽鳳臺(tái)電廠4×600MW機(jī)組均全廠采用西屋Ovation系統(tǒng)，國(guó)華浙能寧海電廠4×600MW機(jī)組全廠采用西門子公司的T-XP系統(tǒng)，大唐烏沙山電廠4×600MW機(jī)組全廠采用I/A系統(tǒng)，國(guó)華臺(tái)山電廠2×1000MW機(jī)組采用北京和利時(shí)公司系統(tǒng)，浙江樂(lè)清電廠4×600MW機(jī)組全廠采用ABB公司的SYMPHONY系統(tǒng)等。 控制系統(tǒng)一體化的實(shí)現(xiàn)，是電力行業(yè)DCS應(yīng)用功能快速發(fā)展的體現(xiàn)。排除人為因素外，控制系統(tǒng)一體化將為越來(lái)越多的電廠所采用。
　　3)DCS結(jié)構(gòu)變化，應(yīng)用技術(shù)得到快速發(fā)展
　　隨著電子技術(shù)的發(fā)展，近年來(lái)DCS系統(tǒng)在結(jié)構(gòu)上發(fā)生變化。過(guò)去強(qiáng)調(diào)的是控制功能盡可能分散，由此帶來(lái)的是使用過(guò)多的控制器和接口間連接。但過(guò)多的控制器和接口間連接，不一定能提高系統(tǒng)運(yùn)行可靠性，相反倒有可能導(dǎo)致故障停機(jī)的概率增加。何況單元機(jī)組各個(gè)控制系統(tǒng)間的信號(hào)聯(lián)系千絲萬(wàn)縷，互相牽連，一對(duì)控制器故障就可能導(dǎo)致機(jī)組停機(jī)，即使沒(méi)有直接導(dǎo)致停機(jī)，也會(huì)影響其它控制器因失去正確的信號(hào)而不能正常工作。
　　因此隨之控制器功能與容量的成倍增加、更多安全措施(包括采用安全性控制器)、冗余技術(shù)的采用(有的DCS的核心部件CPU，采用2×2冗余方式)以及速度與可靠性的提高，目前DCS正在轉(zhuǎn)向適度集中，將相互聯(lián)系密切的多個(gè)控制系統(tǒng)和非常復(fù)雜的控制功能集中在一對(duì)控制器中，以及上述所說(shuō)的單元機(jī)組采用一體化控制系統(tǒng)，正成為DCS應(yīng)用技術(shù)發(fā)展的新方向，這不但減少了故障環(huán)節(jié)，還因內(nèi)部信息交換方便和信息傳遞途徑的減少而提高了可靠性。
　　此外，隨著近幾年DCS應(yīng)用技術(shù)的發(fā)展，如采用通用化的硬件平臺(tái)，獨(dú)立的應(yīng)用體系，標(biāo)準(zhǔn)化的通訊協(xié)議，PLC控制器額融入，F(xiàn)CS功能的實(shí)現(xiàn)，一鍵啟動(dòng)技術(shù)的成功應(yīng)用等，都為DCS增添了新的活力，功能進(jìn)一步提高，應(yīng)用范圍更加寬廣。
　　4)全廠輔控系統(tǒng)走向集中監(jiān)控
　　一個(gè)火電廠有10多個(gè)輔助車間，國(guó)內(nèi)過(guò)去通常都是由PLC和上位機(jī)構(gòu)成各自的網(wǎng)絡(luò)，在各車間控制室內(nèi)單獨(dú)控制，因此得配備大量的運(yùn)行人員。為了提高外圍設(shè)備控制水平和勞動(dòng)生產(chǎn)率，達(dá)到減員增效的目的，隨著DCS技術(shù)和網(wǎng)絡(luò)通訊功能的提高，目前各個(gè)輔助車間的控制已趨向適度集中，
　　整合成一個(gè)輔控網(wǎng)(簡(jiǎn)稱BOP 即Balance Of Plant的縮寫)方向發(fā)展，即將相互獨(dú)立的各個(gè)外圍輔助系統(tǒng)，利用計(jì)算機(jī)及網(wǎng)絡(luò)技術(shù)進(jìn)行集成，在全廠IT系統(tǒng)上進(jìn)行運(yùn)行狀況監(jiān)控，實(shí)現(xiàn)外圍控制少人值班或無(wú)人值班。
　　近幾年新建工程迅速向這個(gè)方向發(fā)展。如國(guó)華浙能寧海電廠一期工程(4×600MW)燃煤機(jī)組BOP覆蓋了水、煤、灰等共13個(gè)輔助車間子系統(tǒng)的監(jiān)控，下設(shè)水、煤、灰三個(gè)監(jiān)控點(diǎn)，集中監(jiān)控點(diǎn)設(shè)在四機(jī)一控室里，打破了傳統(tǒng)的全廠輔助車間運(yùn)行管理模式，不但比常規(guī)減員30%，還提升了全廠運(yùn)行管理水平。整個(gè)輔控網(wǎng)的硬件和軟件的統(tǒng)一，減少了庫(kù)存?zhèn)淦穫浼叭粘９芾砭S護(hù)費(fèi)用。由于取消了多個(gè)就地控制室，使得基建費(fèi)用和今后的維護(hù)費(fèi)用都減少。一些老廠的輔助車間也在進(jìn)行BOP改造，其中浙江省第一家完成改造的是嘉興發(fā)電廠2×300MW機(jī)組，取得較好效果。

Schneider Modicon AS-8533-002 USPP AS8533002

Schneider Modicon AS-P120-000

Schneider Modicon NW-RR85-001 Repeater PROM AS-S961-001 ID 1005 NIOP

Schneider Automation Inc 140 DRC 830 00 140DRC83000 Output Module

Siemens Simatic U-25N U25N Input Module 100-120 VAC Automation Direct PLC

Telemecanique MODICON TSX Micro TSX3710001

Siemens Simatic S5 Output Module 24VDC 6ES5 454-7LB11

SIEMENS 11-D-4506-01 NSFP 11D450601

SIEMENS Sinumerik CPU 6FC5110-0BB01-0AA1 E Stand A

SIEMENS 6SN1111-0AB00-0AA0 SIMODRIVE 611 SURGE ARRESTER

SIEMENS Simodrive 6SN1130-1AA11-0CA0 6SN11301AA110CA0

SIEMENS OP012 6FC5203-0AF02-0AA0 Membrane Keypad 6FC5 203-0AF02-0AA0

Advantech PCL-745 Rev.a2 Isolated RS-422/485

ALLEN-BRADLEY 2711-M3A18L1 PanelView 300 Micro ! WOW !

ABB 57275871 / UC86-8CH / UC868CH / UC86 8CH / UC86.8CH

ACME ELECTRIC TP793694S Transber, 480Y/277V, 45kVA G2

AALLEN BRADLEY 1336 AC Drive 1336-B030-EOF-L1 30HP

8500-B1D-L1B ALLEN BRADLEY SERVO MOTORS REMANUFACTURED

SIEMENS 6FM1-726-3CA00 USPP 6FM17263CA00

ASEA BROWN BOVERI INNPM-22 NSFP INNPM22

ASEA BROWN BOVERI 3HAB2242-1 USPP 3HAB22421

MITSUBISHI FR-SE-S-22K-BN401U USPP FRSES22KBN401U

INDRAMAT HDS03.2-W075N-HS45-0 USPP HDS032W075NHS450

ALLEN BRADLEY 7300-UCT-3 USPP 7300UCT3

STI MS4348B-X USPP MS4348BX

Siemens 6ES5-430-7LA12 NSFP 6ES54307LA12

SIEMENS 6ES5 464-8ME11 -FS- 6ES54648ME11

SIEMENS 6ES5457-5AB11 6ES5 457-5AB11 XLNT

Siemens S5 6ES5 312-3AB11 6ES5312 6ES53123AB11

Siemens 6ES7 407-0KA02-0AA0 6ES7407-0KA02-0AA0 in Sealed Box

Siemens RA81 SERVO CONTROL Board 6416261

PROSOFT MVI46-MCM MVI46MCM

HILSCHER CIF-50-PB COMMUNICATION MODULE INTERFACE CIF50PB

Veeder Root Vapor Sensor Interface Module

Siemens 6AV6642-0DA01-1AX1 OP177B No Box

Siemens LOGO 6ED1 055-1CB00-0BA0 in sealed box

Omron 3G2A5-BC081

Schneider Modicon AS-S908-110 ASS908110 Processor

Schneider Modicon AS-B883-200 INPUT MODULE LINEAR MV 10POINT

Schneider Modicon AS-E908-131 REMAN ASE908131

Schneider Modicon GOULD OUTPUT MODULE AS-B804-016 REMAN ASB804016

Schneider Modicon AS-BADU-205 INPUT MODULE ASBADU205

Schneider Modicon POWER SUPPLY MODEL AS-P800-003

Telemecanique ABA 6PT311 Temperature Module

Schneider Telemecanique ATV31HV30N4A NIB

Siemens6FX1122-8BD046FX11228BD04SINUMERIK805SMDigitalOutputModule

SIEMENS 6AV6-545-0AH10-0AX0/6AV6545-0AH10-0AX0 TOUCHSCREEN INTERFACE XLNT

SIEMENS Sinumerik 3T Panel 6FX11268AA00 _ 6FX1126 8AA00

GE Fanuc IC610CCM105D Data Communication Module Series

SIEMENS SIMODRIVE 6SN1145-1BA01-0BA1SINUMETIK 840D 6FC5247-0AA00-0AA26SN1123

SIEMENS SINUMERIK 6FC5 203-0AF02-0AA0 Membrane Keypad

SIEMENS Moore Pneumatic Pressure Transmitter 174N 0-5 H2O

ALLEN-BRADLEY LOT! CAT 1201-HAZ 2 PROGRAMMING TER.

AB Allen Bradley 1606-XL480E-3W Power Supply 460/480V 24VDC, 20A

AC INVERTER DRIVE vfd X4C4050-0C 50hp 40hp 380v 400v -460v volt

A06B-0502-B072#7008 FANUC SERVO MOTORS REMANUFACTURED

75 HP Rotary Phase Converter with Starter

RELIANCE ELECTRIC 84586-24R USPP 8458624R

ALLEN BRADLEY 4100-214-PRL USPP 4100214PRL

ALLEN BRADLEY 1775-A1 USPP 1775A1

INDRAMAT CLM01.3-X-0-2-0-FW USPP CLM013X020FW

XYCOM 9487-27B2118050000 USPP 948727B211805000

TYCOR PTY4803Y6515F NSFP PTY4803Y6515F

HOFFMAN A-42SA3810LP USPP A42SA3810LP

Siemens 6ES5-242-1AA13/6ES5242-1AA13 COUNTER MODULE XLNT

SIEMENS 6ES5 375-1LA41 MEMORY MODULE

SIEMENS Digital Input Module 6ES5 434-7LA11

Siemens 6ES5 998-0UB53 NSFP 6ES59980UB53

Siemens 6ES5464-8MC11 6ES5 464-8MC11

SIEMENS MP277-10 6AV6 643-0CD01-1AX1 Touch Glass

Reliance Electric 0-57416-K Remote I/O Comm Mod Missing Mounting Clip

Texas Instruments 500-5037A

Square D Modified Differential Ground Fault Interface Module S48891

UPGRADED CISCO1841-HSEC/K9 ROUTER WITH 1YR 1841-HSEC/K9

Siemens CABLE 6ES7 901-0BF00-0AA0 HMI MPI to S7-300

Modicon AS-W903-006

Schneider Modicon AS-BADU-206 TSX Compact Analog Input

Schneider Modicon DEP 216 / AS-BDEP-216 Input Module

Schneider Modicon AS-BDAP-252 NSFP ASBDAP252

Schneider Modicon AS-B885-111

Schneider Modicon /Gould AS-P453-632 Remote I/O Module (UGC)

Schneider Modicon CARD AS-B559-001 ASB559001 B559

Schneider Modicon TSXCFY11 TSX CFY 11 in Box

SCHNEIDER TSX QUANTUM RTD INPUT MODULE 140 ARI 030 10 20-100414-01

Redback CM-M-512MB Connection Manager BAC8GMBEAA

SIEMENS 6ES5-470-4UA13/6ES5470-4UA13 OUTPUT MODULE XLNT

SIEMENS FANUC SINUMERIK PRIMO SG CONTROLLERPARTS

Mitsubishi Melsec A1SJ71QC24N Serial Communication Module

SIEMENS Simodrive 6SN1114-0AA01-0AA0 Module

SIEMENS Sinumerik I/0-Modul 6FC3984-3RA

SIEMENS 6FC7 = ECC89 = 6N24P HF Double Triode Tubes NOS OTK Voskhod SAME DATE 24pc

AllenBradley1746-NO4I/A1746-N04ISLC500AnalogOutputModule

ALLEN BRADLEY SLC 500 ANALOG OUTPUT MODULE 1746-N04I

ABB ROBOT SERVO 3HAC 10555-1

A06B-0143-B088#0008 FANUC SERVO MOTORS REMANUFACTURED

0020-27712 CLAMP RING 6" JMF PADDED HOT AL HTHU

MODICON P1-984A-816 NSFP P1984A816

ALLEN BRADLEY 150-B180NBDB-8L USPP 150B180NBDB8L

ALLEN BRADLEY 1326AB-B515E-21-K5 USPP 1326ABB515E21K5

GENERAL ELECTRIC 193X-451AAG03 USPP 193X451AAG03

SQUARE D AF2308GETBMB USPP AF2308GETBMB

SIEMENS 6SC6-100-0GA12 USPP 6SC61000GA12

ASEA BROWN BOVERI 3HAB2209-1 USPP 3HAB22091

Siemens 6ES5 943-7UB11 6ES59437UB11

Siemens Simatic S5 6ES5 340-3KB42 6ES53403KB42

SIEMENS 6ES5-700-2LA10 USPP 6ES57002LA10

Siemens 6ES5 454-4UA12/6ES54544UA12 SEALED

SIEMENS 64K MMC 6ES7953-8LF11-0AA0

Siemens GSM Modem TC35i

SATT CONTROL 492-705-502 USPP 492705502

Square D EQ5138-G1

SIEMENS DEMATIC F0038-00146 SLUG RELEASE INTERFACE MODULE

SynchLink Drive Interface Module QTY

Siemens 6SE7014-0TP50-Z NIB

Siemens TP7 6AV3607-1NH00-0AX0 Touch Panel

Schneider Modicon DISCRETE OUTPUT 8 PT MODULE DAP 210 AS-BDAP-210 2

Schneider Modicon ASBADU204 Compact Analog Input AS-BADU-204

Schneider Modicon AS-B833-016 USPP ASB833016

Schneider Modicon PLC MODULE AS-B875-102 ASB75102 S51C

Schneider Modicon AS-WBXT-201 Bus Extension Cable

Schneider Modicon AS-H819-209 - 7 Slot Chassis 984 Series Rack

Schneider PLC Analog Output Module 170AAO12000 NIB

SIEMENS 6ES5430-4UA14 INPUT MODULE XLNT CONDITION LNC

roland prelude 61 key keyboard in VG CONDITION

Siemens Coros Op 15 6AV3515-1EB00

SIEMENS SINUMERIK 840D/DE NCU 573.4 6FC5357-0BB34-0AA0 6FC53570BB340AA0 NIB

Reliance Electric Network Communications Module 57404-2

SIEMENS Control Board Servo Drive 6SN-01118-OAA11-OAA1

SIEMENS P/N 3-720-0229A SIMODRIVE MODULE

SIEMENS 6FC5110-0DB02-0AA2 6FC51100DB020AA2 BOARD MODULE VER T

ALLENBRADLEY2711P-T9C1OPERATORINTERFACEPANELVIEW900SERIESCREVC

Allen Bradley VersaView 1500W 6180W-15KSXPH Operator Interface Panel

ABB F4S3200 MEGAMAX SACE-F4 3200A 690V, PR1/P LSIG Trip, Ctrl PR1/C F4S 3200 Amp

Advanced Energy AE, Pulsed Plasma PDP 2500 RF Generator

(L26-5) 1 SCHNEIDER AUTOMATION MM-PMC2-40-SC W/O OPERATOR INTERFACE L26-5

MARCONI ASX-1000-10AC NSFP ASX100010AC

ALLEN BRADLEY 1326AB-B740E-21 USPP 1326ABB740E21

GE FANUC IC3600EPSU1 USPP IC3600EPSU1

FANUC A06B-6058-H011 NSPP A06B6058H011

SIEMENS 1FT6064-6AF71-3EH1-Z NSPP 1FT60646AF713EH1

RELIANCE ELECTRIC 0-57411-2 NSFP 0574112

SIEMENS 3VF6212-1MK44-0AA0 NSFP 3VF62121MK440AA0

Siemens 6ES5 466-3LA11 6ES54663LA11

Siemens 6ES5-943-7UB11 NSFP 6ES59437UB11

SIEMENS 6ES5-435-6AU11 NSFP 6ES54356AU11

Siemens 6ES5 700-8MA11 BUS MODULES5 REFURBIS

Siemens S5 6ES5 921-3WB11 6ES59213WB11

Siemens C7-634 6ES7634-1DF02-0AE3 Membrane Keypad

SIEMENS 6ES5-308-3UA12 NSFP 6ES53083UA12

Square D 8020 SCP-311

NOTIFIER 2-Wire Detector Interface Module MMX-2

WS-C4506-E CISCO

Siemens 6ES7231-0HC21-0XA0 6ES72310HC210XA0 FreeShip

SIEMENS SIMATIC PANEL PC 870 PC870 6AV7 743-2AC00-0AA0 Membrane Keypad

Reliance 612404-7R

Schneider Modicon DAP 210 / AS-BDAP-210 89 PT OUTPUT MODULE

Schneider Modicon AS-B373-000 USPP ASB373000

Schneider Modicon AS-T190-000 USPP AST190000

Schneider Modicon AS-BDAP-209 PLC

Schneider Modicon AS-B824

MODICON AS-B572-010 OUTPUT MODULE 0-10V ANALOG

Siemens Input Module 6ES5420-7LA11 ""

SIEMENS 6DD1641-0AC0 EB11 DIGITAL I/O MODULE

Siemens Output Module 6ES5441-7LA11 ""

SIEMENS SIMADYN S5 MODULE PN 6DD2920-0A00

Texas Instruments 500-2109 Communication Module Assembly

SIEMENS 6SN1118-0DM11-0AA1 6SN11180DM110AA1

SIEMENS SIMODRIVE 1P 6SN1123-1AA01-0FA1

SIEMENS 6FC5357-0BB15-0AA0 6FC5 357-0BB15-0AA0 SINUMERIK 840D/DE NCU 571.5

ADVANTECH PCM-3730 in Box

Allen-Bradley 1747-L532 SLC 5/03 CPU with I/O modules

ABB BAILEY SYMPHONY CONTROLS DIGITAL IMASI23 ANALOG INPUT SLAVE MODULE 84802

ADEPT TECH 10310-61210 USPP 1031061210

(#3069) Allen-Bradley 1756-EN2T ControlLogix Ethernet Module Factory Sealed

HORIBA FIA-23A USPP FIA23A

TB WOODS WFC4025-0C NSFP WFC40250C

DEMATIC KBF100-4-8/2 NSFP KBF100482

COOPER INDUSTRIES 927255 NSPP 927255

PACIFIC SCIENTIFIC SC723B001-01 USPP SC723B00101

MODICON AM-S985-032 USPP AMS985032

GRAPHTEC WR3300 USPP WR3300

Siemens 6ES5 308-3UB11 -- 6ES53083UB11

Siemens 6ES5-524-3UA15 NSFP 6ES55243UA15

SIEMENS 6ES5-372-0AA61 NSFP 6ES53720AA61

Siemens 6ES5 103-8MA03 CPU MODULE

Siemens 6ES5-373-1AA41 32K Memory 6ES53731AA41 6ES5373-1AA41 N330

Siemens 6GK7 343-5FA01-0XE0 6GK7343-5FA01-0XE0 CP343-5

Siemens TP177B 6AV6642-0BA01-1AX1 Touch Glass + Film

Siemens 6ES5701-1LA12

KV1517A KVM Extender Black Box ServSwitch Summit Computer Interface Module

YASKAWA ELECTRIC JAMSC-B1074-1 USPP JAMSCB10741

SIEMENS 6ES7 222-1HF21-0XA0 6ES7222-1HF21-0XA0 FreeShip

Siemens OP277 6AV6643-0BA01-1AX0 Membrane Keypad

Red Lion LIBC1E00

Schneider Modicon AS-B821-108 ASB821108 Input Module

Schneider Modicon AS-884A-101 Processor Module 60 DAY WARRANTY

Schneider Modicon AS-P120-000

Schneider Modicon AS-B236

Schneider Modicon AS-516P-007 Processor Board Rev C16 AIND/UVG

Modicon XBTF024110 Magelis Operator Interface XBT F024110 24VDC 35W V1.1 3244

Siemens Simatic s7-300 analog b module 6ES7 331-7KB02-0AB0

TELEMECANIQUE TSX-AEY-1600 TSXAEY1600

Siemens Simatic S5 6ES5 441-8MA11 Digital Output Module

Siemens 9610 9610EH-1156-JZZB NIB Power Meter Display ION Ethernet Access

SIEMENS Sinumerik FM 6FC5210-0DA00-1AA1 6FC5 210

SIEMENS 6SN1118-0DM33-0AA2 6SN11180DM330AA2 Servo

SIEMENS Simodrive 6SN1123-1AB00-0AA0 LT-MODUL Version A

SIEMENS I/O MUDULE BOARD 64EY32AUSGAENGE 6FC3984-3RA USMT CNC

Advantech PCM-3641 4-port RS-232 High-Speed Module FS

ALLEN-BRADLEY 2711-k6C2L1 PANELVIEW 600 TOUCH SCREEN TESTED

ABB 58031844 Mem86-3 192K AB Stromberg

ACOPOS SERVO DRIVE BV1320.00-2 SELLING AS IT IS

AAT-AAT1105A-T1-T SOP IC Original Packing

8510A-A11-A2 ALLEN BRADLEY CONTROLLERS REMANUFACTURED

SIEMENS 6RY1-243-0AA00 USPP 6RY12430AA00

ATLAS COPCO ETD-S7-50-13-CTADS USPP ETDS75013CTADS

ASEA BROWN BOVERI DCS502-B02505121 USPP DCS502B02505121

MITSUBISHI MR-J2S-11KB NSFP MRJ2S11KB

INDRAMAT MAC112D0ED1B130 USPP MAC112D0ED1B130

APW MCLEAN M17-0216-G009H USPP M170216G009H

TEST PRODUCTS T73879 NSPP T73879

Siemens 6ES5-440-5AA11 USPP 6ES54405AA11

SIEMENS 6ES5 482-8MA13

SIEMENS S5 6ES5 267-8MA11 6ES52678MA11