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# Team BUSS - PowerPoint PPT Presentation

Team BUSS. Backup Storage Source. Team BUSS. Backup Storage Source. EHV Substation Second DC Storage Source Sponsor Idaho Power Company Team Members Rob Butzer Mitch Colburn Brian Vandenburg. Presentation Outline. Project Background Customer Needs Reliability Analysis

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## PowerPoint Slideshow about ' Team BUSS' - bernard-ferguson

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Presentation Transcript

Backup Storage Source

Backup Storage Source

EHV Substation Second DC Storage Source

Idaho Power Company

Team Members

Rob Butzer

Mitch Colburn

Brian Vandenburg

• Project Background

• Customer Needs

• Reliability Analysis

• Alternatives Analysis

• In EHV substations, battery banks are used to maintain operational control of the substation when ac power is lost

• The banks are able to control the relays and breakers, both used to help re-energize the system

• Bank of up to 60 cells

• Each cell rated at about 2.1V

• Nominal Voltage of ~130V

• Continuous load draws 5.5A for 8 hours to maintain station control

• Momentary load of 142.8 A to be supplied after 8 hours for breaker control

• Minimum Voltage ~105V

One Line Diagram

1. Calculate reliability of present DC battery system

2. Seek alternatives for a backup dc storage supply and evaluate added reliability

3. Implement scaled prototype on a bench top system

0.000068*525,600 min/year = 35.7 min/year

4.624*10^-6*31,536,000 sec/year=

0.146 sec/year

Evaluation Basis:

1. Reliability

2. Cost

3. Maintenance

4. Life Expectancy

5. Size

Hybrid System:Battery & UCaps

• Initial Cost: ~\$1000 plus battery resized?

• Battery used for continuous

• Ucaps used for momentary

Hybrid System:DC Generator & UCaps

• Initial Cost: ~\$1500

• Generator used for continuous

• Ucaps used for momentary

• The goal of the bench top system is to show the effectiveness of a hybrid system and how it may be implemented in a EHV substation

This is the one line diagram for the bench-top system that is currently being designed

Discussion