Pulse Power Conversion for Medium Voltage Systems Alyona Crews, - - PowerPoint PPT Presentation

Pulse Power Conversion for Medium Voltage Systems

Alyona Crews, Andrew Davidson, Nell Kane & Alex Rontey SPONSOR: General Dynamics Electric Boat

Outline

• Problem Summary
• Project Objective
• Requirements/Limitations
• Background/Theory
• Proposed Designs
• Rejected Designs
• Schedule

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Problem Summary

• Energy storage
• Pulse power
• Delivering Pulse power

(1) Tesla Model P85D

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Project Objective

• Project objective:

efficient pulse power conversion.

• Project based on Tesla Model

P85D

(2) Tesla Model S Inverter (3) Tesla Model P85D

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Requirements/Limitations

• Input: 28V DC
• Desired Output: 400V, 568kW for 3.1 seconds into a

3-phase induction motor

• Modular Design
• Phase 1: MATLAB Analysis
• Phase 2: Physical Model
• Budget: $3000
• Time: ~6 Months

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Background/Theory: Supercapacitors

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Background/Theory: DC-DC Conversion

• Boost - Raises voltage
• Buck - Drops voltage

Buck Converter Boost Converter

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Background/Theory: 3-Phase Inverter

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Simulink Testbench

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Simulink Testbench Benchmark Performance

• The motor model should be similar to

the Tesla P85D

○ 440V 700HP 4 Pole Induction Motor

• perating up to 18,000 rpm

○ Peak power around 4,000 rpm

• Develop a simple model capable of

this performance before considering converter designs. 10

(7) Tesla Model P85D Dyno Measurements

Simulink Testbench Benchmark Performance

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Proposed Designs I: Cascaded Boost Converter

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Proposed Designs II: Positive Output Superlift Converter

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Rejected Designs I & II

Cascaded Bidirectional Converter Single-Stage Boost Converter

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Rejected Design III: Transformer Based Conversion Topologies

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Schedule: Fall Semester (Phase 1)

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Comments, Questions, Suggestions? Thank you for your attention!

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Sources

1) https://www.robbreport.com.sg/tesla-model-s-p85d-review-the-electric-car-is-all-about-fast-but-noiseless-acceleration / 2) https://www.latimes.com/business/autos/la-fi-hy-review-tesla-model-s-p85d-20150220-story.html 3) https://www.latimes.com/business/autos/la-fi-hy-review-tesla-model-s-p85d-20150220-story.html 4) Fang Lin Luo, Hong Ye - Power Electronics: Advanced Conversion Technologies, Second Edition-CRC Press (2018) 5) Kostiantyn Tytelmaier, Oleksandr Husev, Oleksandr Veligorskyi, Roman Yershov - A Review of Non-Isolated Bidirectional DC-DC Converters for Energy Storage Systems (2016) 6) Halper Marin S, Ellenbogen James C - Supercapacitors: A Brief Overview (2006) 7) https://www.dragtimes.com/blog/tesla-model-s-p85d-breaks-the-dyno-video