Capturing Grid Power-The Performance, Purpose, and Promise of Storage Technologies

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CAPTURING GRID POWER
PRESENTED BY
KAMAL.V.V
S7 E1
College Of Engineering, Trivandrum
2007-11 batch

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CONTENTS
Objectives
Introduction


Basic equations
Measures against halt
Operating methods
Control strategies
Basic characteristics


OBJECTIVES
To understand the need for energy storage.

Analyze Performance, Purpose, and Promise of Different Storage Technologies.

INTRODUCTION
The future grid.

The challenges.

The solution.
THE FUTURE GRID
Smart grid.
Self healing grid.
Resilient.
Efficient.




THE CHALLENGES
The arrival of plug-in hybrid vehicles.
Exponential growth in customer-controlled generation.
growth of nondispatchable and intermittent renewable sources of energy.


The solution
Cont:
Act as a buffer between variable energy resources and the electric grid.

Refill Centre for electric vehicles.

Triggered peak shaving

dynamic islanding.
Storage Technologies
Compressed Air Energy Storage.

Battery Energy Storage.

Flywheel Energy Storage.

Electrochemical Capacitors.

Compressed Air Energy Storage.


Battery Energy Storage.
Sodium Sulphur Batteries.

Flow Battery Technology.

Lithium-Ion Batteries.

Sodium Sulphur Batteries
Cont.
Efficiency 89%.

Six hours of discharge time on a daily basis

peak shaving, backup power, firming wind capacity.

245-MWh system for wind power stabilization in northern Japan
Flow Battery Technology.
Cont.
Plastic components.

Light in weight

Have a longer life.

500 kW for two hours
Lithium-Ion Batteries
Cont.
Lithium titanate.

Lithium Iron Phosphate.

Flywheel Energy Storage
Electrochemical Capacitors.
Super capacitors.




CONCLUSION
Only one externally commutated thyristor inverter is used.
High quality output power.
Optimum site for wind turbines can be readily selected.
Dc transmission system is entirely appropriate for the proposed system.
REEFERENCES
[1] Shoji Nishikata, Fujio Tatstuta, “A New Interconnecting Method for Wind Turbine/Generators in a Wind Farm and Basic Performances of the Integrated System,” IEEE Transactions on Industrial Electronics,vol.57,no:2,February 2010.
[2] Shoji Nishikata, Fujio Tatstuta, “A New Interconnecting Method for Wind Turbine/Generators in a Wind Farm and Basic Performances of the Integrated System,” in Proc.13th international Power Electronics and Motion Control Conference, Poznan Poland, Sep 1-3,2008,pp 2342-2348.
[3]M.P Ramesh, “Grid Interconnection of Wind Turbines”, Presentation to GERC Ahmedabad,7 February 2009.
[4]Thomas.A.Wind, ”Distributed wind generation and interconnection”, Transmission interconnection and integrating issues, May 19,2010.
[5] C. Ghita, A.– I. Chirila, I. – D. Deaconu, and D. I.
Ilina, “The magnetizing field of a linear generator
used to obtain electrical energy from waves
Energy”, in Proc. ICREPQ’07, pp. 207-208.
[6] H. James Green, Thomas W, Wind Utility Consulting,” The IEEE Grid Interconnections Standard: How Will it Affect
Wind Power?”, Presented at AWEA’s Wind Power 2000 Conference Palm Springs, California April 30–May 4, 2000