OPC connectivity in the feedback of a municipal-wide heating closed control system Mariusz Postół Przemyslaw Malek www. cas. eu 1
CONTROL PROCESS • • Łódź citizens #: Heating plants: Total thermal output: Heat distribution network: • Number of nodes: • Production in cogeneration: 1 M 3 2560 MW ~800 km ~500 miles ~7 000 – Hot water – Electric power – Steam 2
PRODUCTION OBJECTIVES f=f( ) f=y( ) 3
CONTROL OBJECTIVE H 1 H 2 HEAT STREAM H 3 Heat stream = f(weather) 4
SUPPLY AREA MANAGEMENT 5
FIRST STAGE K-1266 K-209 K-199 K-231 K-736 K-22 K-751 K-762 K-175 OFFICE K-1014/1 K-164 K-1023 K-104/30 K-110 K-104/A K-101 SMULSKO HDCR K-510 K-617 K-637 6
COMMON AREAS K-1266 K-209 K-199 K-231 K-736 K-22 K-751 K-762 K-175 K-1014/1 K-164 K-1023 K-104/30 K-110 K-104/A SMULSKO K-101 K-510 K-617 K-637 7
Łódź Radogoszcz Teofilów Punkt krytyczny Śródmieście Punkt krytyczny Smulsko Janów Punkt krytyczny Dąbrowa Chojny 8
AUTOMATIC LOAD CONTROL LOAD P SEPARATION LOAD P P G K-101 K-164 P P P F 3 F 4 REFILL SUW AREA 1 AREA 2 9
AUTOMATIC LOAD CONTROL LOAD P PLC K-101 K-164 PLC REFILL HDCS SUW OPC Connec tivity OPC REFILL HDCS SUW 10
Communication paths 11
Communication paths Power Plant #1 Division Heating Chamber Regulation Heating Chamber Power Plant #2 Redundancy 12
COMMUNICATION SERVER PIPE SEGME NT PROTOC OL MEDIUM CHANNELS PROTOC OL MEDIUM PROTOC interfa ce NT interfa ce SEGME interfa ce interfa ce PIPE PIPE SEGME NT OL MEDIUM PROTOC OL MEDIUM SCADA Stations OPC Co nnectiv ity 13
Division Heating Chamber SEGME NT PIPE Regulation Heating Chamber SEGME NT SBUS/U Etherne t SBUS RADIO PIPE Power Plant #2 SEGME NT DP interfa ce PIPE Power Plant #1 interfa ce PIPE interfa ce Example – Lodz common heating network SEGME NT SBUS/U DP GPRS CHANNELS SCADA Stations OPC Co nnectiv ity 14
Commserver - Redundancy Standard solution – better case Primary Station LAN Active Backup Station Wait for failure Active SERVICE 15
Commserver - Redundancy Commserver solution Active Standby Fail Active Standby SERVICE 16
DEVICE COMMUNICATION MESS WS WS ES 17
DEVICE COMMUNICATION MANAGEMENT F( ) ? WS OPC - Interface CACHE SCANNER WS ES SERVER 18
DIRECTION K 101 PROCESS REQUIREMENTS DIRECTION K 617 19
DIAGRAM OF DIRECTION STATES CLOSING DONE CLOSED OPENED ACCEPTED LATENCY SECONDS ACCEPTED LATENCY HOURS OPENING ACCEPTED LATENCY HOURS MONTHS MINUTES MONTHS DONE 20
ADAPTIVE APPROACH CLOSING CLOSED OPENING STATE DRIVEN SCANNING POLICY SCANNING ON DEMAND SLOW: POLICY FAST: POLICY SLOW: POLICY 21
Commserver – SCANNING ON DEMAND Normal state – slow scanning 22
Commserver – SCANNING ON DEMAND Alarm state – fast scanning 23
Commserver – multi-channel Typical solution Object #1 Object #2 Object #3 Object #n GPRS round trip > 2 sec. => Cycle time > 0. 5 h 24
Commserver - Multichannel solution Object #1 Object #2 Object #3 Object #4 Object #5 Object #6 Object #7 Object #8 250 channels Object #n+1 Object #n+2 Object #n+3 25
OPC TRANSPORTER TAGS -a -b -c -d OPCS VERTICAL - aa - bb - cc - dd OPCS TAGS HORIZONTAL a = aa + 10 bb OPCT OPC CONNECTIVITY SQL CONNECTIVITY XML CONNECTIVITY PUSH(Q 1, d+c) TAGS - P 1 - P 2 - P 3 - P 4 QUEUES - Q 1 - Q 2 - Q 3 - Q 4 SQL P 1 = aa+a+. . . XML Average(a, b, c, d) 26
Thank you for your time 27
SYSTEMS INTEGRATION - GIS SPM KDs SOC Kxxx TCH SOC KOM TCH SOC SCk LE B SCs EC OPCS Corporate field network UN EC OU T HA C EC View GIS LE B SERWER NAT WIZ OPCS U SYM GIS OPCS NT SBk UC O SBs VLAN SOC HA ORACLE Corporate network 28
PASSIVE OPC SERVER OPC INTERFACES CACHE WS WS MASTER PASSIVE MONITOR RS 485 ETHERNET 29
Data Sources Integration Heat meters 5000 pcs. (70000 variables) Access Points 1000 pcs. ERP, CRM, DB, Accounting Communication Servers Thermal. Power. Plants 60 pcs. (1000 variables) Heating chambers, Pomp stations 25 pcs. (3000 variables) Business Services OPC, SQL, SCADA, XML/HTML Reports Object Services Corporate LAN Data Services Presentation Services 30
Hydrostatic Thermostatic Hydrostatic P limit Hydrodynamic 31
SYSTEM INTEGRATION SPM KDs SOC TCH SOC SCs SBs SERVR GIS Corporate field network EC EC View Corporate network EC 32
SYSTEMS INTEGRATION SOC Kxxx EN RE AL TCH W TCH SC L SOC KOM SOC GIS QL S SYM PC O NAT Corporate field network EC EC SERVER VLAN SBk SQL View Corporate network EC 33
XML OPC SQL OPC TRANSPORT ENGINE TRANSPORTER STATISTIC PROCESSOR OPC TRANSPORTER CONFIGURATION GIS SMALLWORD OPC COMMSERVER SQL ORACLE 34
AUTOMATIC LOAD CONTROL ODBIORY EC-3 EC-2 P P F 1=const F 2 K-101 K-164 P F 3 UZUPEŁNIANIE SUW P G PODZIAŁ P P P G P F 4 UZUPEŁNIANIE SUW 35
WS WS OPCS Crash 36
WS WS OPCS Solution CE A PL E R 37
ISLAND OPCS OF AUTOMATION TU VE MU SI LU EC ISLAND OF AUTOMATION TR N CO LY A ISLAND OF AUTOMATION OL OPCS Solution WS WS OL TR N CO 38
THE MESSAGE IS: O C P APP S C CFI O SO E INTEGRATIONWARE AR W RD HA FT SO KNO SKILLS GY WL LO EDG O DEVELOPMENT HN E EC T 39
Commserver - Redundancy Standard solution – worse case Primary Station LAN Active Backup Station Wait for failure SERVICE 41
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