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Modern Electrical Power Production and Delivery Ralph E. Fehr, III, P.E. Consultant and Adjunct Professor of Electrical Engineering University of South.

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Presentation on theme: "Modern Electrical Power Production and Delivery Ralph E. Fehr, III, P.E. Consultant and Adjunct Professor of Electrical Engineering University of South."— Presentation transcript:

1 Modern Electrical Power Production and Delivery Ralph E. Fehr, III, P.E. Consultant and Adjunct Professor of Electrical Engineering University of South Florida September 16, 2004

2 This Powerpoint slideshow is available on the USF Power website:

3 Thomas Edison and the Incandescent Lamp Nikola Tesla and the Induction Coil

4 1100 kWh / person 180 x 10 9 kWh 40 GW peak 11,000 kWh / person 3 x kWh 750 GW peak 25,000 kWh / person 10 x kWh 1500 – 2000 GW peak U.S Electricity Usage as a Percentage of Total Energy Usage YEAR 10% 20% 40% 30% 50% 60% 70% LIGHTINGMOTORS A/CHEATINGREFRIGERATIONAPPLIANCES TV / COMPUTERS ELECTRO-TECHNOLOGIESRESIDENTIALCOMMERCIALINDUSTRIALENVIRONMENTALTRANSPORTATION

5 ELEC & MECH ENGR ELEC & CIVIL ENGR ELEC & MECH ENGR FIRST GENERATORS AND POWER PLANTS EARLY AC DISTRIBUTION LIGHTING AND MOTORS LARGER PLANTS AND DIVERSIFIED SOURCES HIGH-VOLTAGE AC AND DC END-USE DIVERSIFICATION EVOLUTIONREVOLUTION R&D, MATLS, MFG, PWR ELECTRONICS R&D, PWR ELECTRONICS R&D, MATLS, PROCESSES, PWR ELECTRONICS DISTRIBUTED AND RENEWABLE GENERATION FACTS, CUSTOM POWER, SUPERCONDUCTING XMSN ADVANCED ELECTROTECHNOLOGIES

6 Technology Leads To Product Development

7 Transmission and Distribution Components Polymer Insulators (Suspension and Post)

8 Transmission and Distribution Components ACSR Conductor (Aluminum Conductor, Steel-Reinforced)

9 Transmission and Distribution Components High-Strength Poles (Tubular Steel and Spun Concrete)

10 Transmission and Distribution Components Zinc Oxide Varistor Surge Arresters

11 Transmission and Distribution Components High-Phase-Order (6-phase and 12-phase) Transmission Lines

12 Transmission and Distribution Components Fiber-Optic Communication Systems

13 Transmission and Distribution Components Microprocessor-Based Protective Relays

14 Transmission and Distribution Components Superconducting Magnetic Energy Storage Systems IGC's 6 Megajoule, 750 kVA IPQ-750 AC Micro-SMES

15 Power Generation Components Static Excitation Systems

16 Power Generation Components Distributed Control Systems

17 Power Generation Components Soft Starters and Adjustable Frequency Drives for AC Motor Control

18 Power Generation Components High-Temperature Superconducting Generators

19 High-Power Semiconductor Devices Ratings up to 8500 volts and 12,000 amperes and increasing every year Diodes Thyristors Silicon-Controlled Rectifiers (SCRs) Gate Turn-Off Thyristors (GTOs) Insulated-Gate Bipolar Transistors (IGBTs) Integrated-Gate Commutated Thyristors (IGCTs) Common Devices

20 High-Power Semiconductor Applications Thyristor-Controlled Series Capacitors (TCSCs) Static Compensators (STATCOMs) Flexible AC Transmission Systems (FACTS) Static VAR Compensators (SVCs) 230kV SVC

21 Reliability Availability (excluding major storm outages) Typically at least 99.99% (excluding major storm outages) 52.5 minutes/year of outage time May be ok for today, but must improve in the future. Voltage Control Steady State = ±5% normally (ANSI Range A) = ±10% during contingencies (ANSI Range B) Harmonic Mitigation Voltage THD= 5% (V 69 kV) = 2.5% (69 kV < V < 161 kV) = 1% (V 161 kV) Current THD= 5% to 20% (depending on ratio of short circuit availability to load current) Transient per ITIC Chart (next slide)

22 ITIC Curve ANSI Range B

23 FRIENDS Flexible, Reliable and Intelligent Electrical eNergy Delivery Systems FRIENDS Quality Control Center (QCC)

24 Outage Restoration after a Major Disaster

25 Widespread Power System Devastation Worse at the Lower (Distribution) Voltages Higher-voltage (transmission) circuits are more durable and less susceptable to wind and tree problems. A utility system has many more circuit-miles of distribution than transmission; therefore, the distribution system has a much greater exposure.


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