Handbook of Energy Storage for Transmission or ... - W2agz.com

EPRI Proprietary Licensed Material
TABLE OF CONTENTS
Description...................................................................................................................... 1
History of Flywheel Systems...................................................................................... 1
Theory of Flywheel Operation.................................................................................... 2
Energy Storage Capacity......................................................................................... 2
Rotor Stresses and Failure Modes........................................................................... 3
Energy Conversion.................................................................................................. 3
Friction and Energy Losses..................................................................................... 4
Thermal Effects....................................................................................................... 4
Subsystem and Components ....................................................................................... 4
Rotor Design and Construction............................................................................... 5
Rotor Bearings ........................................................................................................ 6
Motors and Generators............................................................................................ 7
Power Electronics and Electro-Mechanical Couplings........................................... 8
Controls and Instrumentation.................................................................................. 9
System Packaging ................................................................................................... 9
Features and Limitations........................................................................................... 10
Power Capacity ..................................................................................................... 10
Energy and Efficiency........................................................................................... 11
Calendar and Cycle Life ....................................................................................... 11
Recharge Time...................................................................................................... 12
Standby Power Loss.............................................................................................. 12
Electrical Interface................................................................................................ 12
Safety .................................................................................................................... 14
Environmental....................................................................................................... 14
Status............................................................................................................................. 14
Major Manufacturers and Systems ........................................................................... 15
Active Power......................................................................................................... 15
AFS Trinity ........................................................................................................... 17
Beacon Power Corporation................................................................................... 17
Hitec Power Protection ......................................................................................... 18
Pentadyne.............................................................................................................. 19
Piller Premium Power Systems............................................................................. 19
SatCon Power Systems ......................................................................................... 19
Urenco Power Technologies................................................................................. 20
Recent Developments in Flywheel Technology ....................................................... 20
Magnetic Bearings ................................................................................................ 21
Composite Materials ............................................................................................. 22
Research Activities ................................................................................................... 22
Applications .................................................................................................................. 23
Voltage Stabilization Support to the Electric Grid ................................................... 23
Problem Description ............................................................................................. 23
Stored Energy for “Distributed-Mini FACTS” Controllers.................................. 24
Potential for Flywheel Energy Storage Mini FACTS in T&D Circuits................ 27
Enhance Service to Fluctuating Loads...................................................................... 28
Problem Description ............................................................................................. 28
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