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 1
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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
2
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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 3
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Single Line Diagram of Substation as Rendered by ETAP v 12.5
Power System Modeling Software 4
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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, ..) 5
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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? 6
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LOAD FLOW RESULTS (ONE-LINE DIAGRAM WITH LOAD FLOW RESULTS)
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SHORT CIRCUIT RESULTS (ONE-LINE DIAGRAM WITH SHORT CIRCUIT
RESULTS) 8
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RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES
TRANSFORMER PROTECTION AND THE 4.16kV MAIN BREAKER PROTECTION
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RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES
(Continued) COORDINATION BETWEEN 4.16kV MAIN AND MOTOR FEEDER RELAY
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RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES
(Continued) COORDINATION BETWEEN 4.16kV MAIN AND STATIC FEEDER
RELAY 11
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RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES
(Continued) GROUND FAULT COORDINATION 12
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RELAY COORDINATION STUDY TIME CURRENT COORDINATION CURVES
(Continued) NEUTRAL ELEMENT COORDINATION 13
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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? 14
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INTOUCH HMI SCREENS BASIC 1-LINE VIEW OF POWER SYSTEM VIA HMI
SCREEN 15
INTOUCH HMI SCREENS (CONTINUED) MOTOR FEEDER WITH SEL-710 MOTOR
PROTECTION RELAY 25
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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 26