SUBSTATION MODELING: PROTECTION AND AUTOMATION JOEL MCDANIEL – SPRING TERM: 2014 SEMESTER PROJECT FOR ECE-544 SUPERVISORY CONTROL AND CRITICAL INFRASTRUCTURE SYSTEMS UNIVERSITY OF IDAHO – DEPARTMENT OF ELECTRICAL & COMPUTER ENGINEERING

THIS PRESENTATION COVERS BASIC ASPECTS OF POWER DISTRIBUTION SUBSTATION PHYSICAL LAYOUT POWER SYSTEM MODELING COMMON POWER SYSTEM STUDIES HUMAN-MACHINE INTERFACE (HMI) STRUCTURE AND PURPOSE

SUBSTATION COMPONENTS AND OPERATION UTILITY SUPPLY HIGH SIDE BREAKER WITH PROTECTIVE RELAY TRANSFORMER WITH PROTECTIVE RELAY LOW SIDE BREAKER WITH PROTECTIVE RELAY 4.16kV BUS FEEDER BREAKERS WITH PROTECTIVE RELAYS

Single Line Diagram of Substation as Rendered by ETAP v 12 Single Line Diagram of Substation as Rendered by ETAP v 12.5 Power System Modeling Software

POWER SYSTEM MODELING WHY DO WE MODEL POWER SYSTEMS? PLANNING PARAMETER AND DATA ESTIMATION EQUIPMENT EVALUATION HOW DO WE MODEL POWER SYSTEMS? HAND CALCULATIONS MODELING SOFTWARE (ETAP, SKM, ASPEN, …..)

COMMON POWER SYSTEM STUDIES LOAD FLOW STUDY WHAT IS LOAD FLOW? HOW IS LOAD MEASURED? END GOAL OF A LOAD FLOW STUDY? SHORT CIRCUIT STUDY WHAT IS SHORT CIRCUIT STUDY? HOW IS SHORT CIRCUIT CURRENT DETERMINED? HOW IS THIS INFORMATION USEFUL? PROTECTIVE DEVICE COORDINATION WHAT IS A PROTECTIVE DEVICE? HOW AND WHY DO WE COORDINATE PROTECTIVE DEVICES?

LOAD FLOW RESULTS (ONE-LINE DIAGRAM WITH LOAD FLOW RESULTS)

SHORT CIRCUIT RESULTS (ONE-LINE DIAGRAM WITH SHORT CIRCUIT RESULTS)

RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES TRANSFORMER PROTECTION AND THE 4.16kV MAIN BREAKER PROTECTION

RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES (Continued) COORDINATION BETWEEN 4.16kV MAIN AND MOTOR FEEDER RELAY

RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES (Continued) COORDINATION BETWEEN 4.16kV MAIN AND STATIC FEEDER RELAY

RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES (Continued) GROUND FAULT COORDINATION

RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES (Continued) NEUTRAL ELEMENT COORDINATION

DEVICE COMMUNICATIONS USING WONDERWARE INTOUCH HMI DEVELOPMENT SOFTWARE WHAT IS HMI? WHY DO WE USE HMI? COMMUNICATION PROTOCOLS? PROPRIETARY MODBUS VIA ETHERNET DNP-3 WHAT ISSUES DRIVE THE DESIGN OF A PARTICULAR HMI?

INTOUCH HMI SCREENS BASIC 1-LINE VIEW OF POWER SYSTEM VIA HMI SCREEN

INTOUCH HMI SCREENS (CONTINUED) SAMPLE LOGIN SCREEN

INTOUCH HMI SCREENS (CONTINUED) ENTER USER CREDENTIALS ACCESS LEVELS / PERMISSION MENU

INTOUCH HMI SCREENS (CONTINUED) LOGGED IN!! NOW LET’S GO TO WORK!

INTOUCH HMI SCREENS (CONTINUED) 1-LINE DIAGRAM – FROM HERE, THE USER CAN NAVIGATE/CONTROL THE SYSTEM AS NEEDED

INTOUCH HMI SCREENS (CONTINUED) HIGH SIDE CIRCUIT BREAKER AND PROTECTIVE RELAY

INTOUCH HMI SCREENS (CONTINUED) MAIN POWER TRANSFORMER DISPLAY – HIGH AND LOW SIDE CURRENTS

INTOUCH HMI SCREENS (CONTINUED) TRANSFORMER DIFFERENTIAL RELAY (SEL-387)

INTOUCH HMI SCREENS (CONTINUED) 4.16kV MAIN BREAKER AND ASSOCIATED PROTECTIVE RELAY (SEL-351S)

INTOUCH HMI SCREENS (CONTINUED) STATIC LOAD FEEDER AND PROTECTIVE RELAY (SEL-351S)

INTOUCH HMI SCREENS (CONTINUED) MOTOR FEEDER WITH SEL-710 MOTOR PROTECTION RELAY

CONCLUSIONS WHAT DID I LEARN? BASIC HMI STRUCTURE TOOLS FOR BUILDING HMI (WONDERWARE – IN TOUCH) COMMON PROTOCOLS USED WHEN IMPLEMENTING HMI COMMON PROBLEMS WHEN IMPLEMENTING HMI / SCADA SYSTEM

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