EE2008 Lecture 1

EE2008 Lecture 1 - Integration of Green Energy in...

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Integration of Green Energy in Distributed Generation Systems Ali Keyhani Professor of Electrical and Computer Engineering Ohio State University, Columbus Ohio [email protected]
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Distributed Generation Systems
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Introduction (1) Distributed Energy Sources: Photo voltaic Energy Wind Energy Fuel Cells Micro Turbines Storage Devices
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Charge Controller 12V Battery 12VDC/220VAC Power Inverter 12V/100W Solar Panel 100 W Solar Photo Voltaic Energy Source contains a 100W solar panel, a 12V battery and a charge controller, and a 12VDC/220VAC power inverter.
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What is a fuel cell? A fuel cell is an electrochemical energy conversion device that converts hydrogen and oxygen into electricity and heat Potential to truly revolutionize power generation by virtue of their inherently clean energy generation.
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Introduction (2) How does a fuel cell work? Produce power electrochemically by simultaneously passing a hydrogen-rich gas over an anode and air over a cathode. By introducing an electrolyte in between the two, an exchange of electrical charges occurs -- ions. Hydrogen reacts with oxygen, causes one or the other stream to become charged, or ionized. The flow of ions through the electrolyte induces an electric current in an external circuit or load.
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Introduction (3) How does a fuel cell work?
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Introduction (5) Our role in fuel cell applications- Energy Conversions for Distributed generation With or without utility interfacing Power supplies for critical loads Automotive Zero-emission vehicles Unlimited business opportunities
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Control of Fuel Cell Generating Source
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FC Energy Conversion System Development Issues (1) System configuration and auxiliary source Fuel Cell DC/DC converter DC/DC converter DC/AC inverter Controller Measurement/control Load Battery DC Bus
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Low Voltage Distributed Generation Systems
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FC Energy Conversion System Development Issues (4) DC/AC conversion 3-phase or single phase Voltage regulation (steady state) THD Transient response Overload protection Robustness to various disturbances
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DG/UPS DG ensures continuous power delivery for critical loads such as computers, servers, communication equipment, and other critical processes. During emergency (utility outage) maintains power to the load Some DGS also provide regulated voltage to the load at all times.
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15 Transportation A typical system
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Emerging Systems: Advanced Braking Brake By Wire Advanced silicon and fault tolerant protocol Provides increased features for total stability control Advanced vehicle dynamics through integration of cruise control and braking systems CPU’s, Power, and Intelligent Sensors
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Emerging Systems: Hybrid Engines Advanced control, 42V/14V power system and Fifth Wave products DSP cores for vector control
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This note was uploaded on 07/17/2008 for the course ECE 743 taught by Professor Keyhani during the Spring '08 term at Ohio State.

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EE2008 Lecture 1 - Integration of Green Energy in...

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