Design of switched-capacitor dc-dc converter for battery management system in electric vehicle
Novel Battery Management System (BMS) for electric vehicle is proposed to enhance system accuracy and reliability with regards to safety issue. Unlike conventional BMS which is done in module level, Embedded System Integrated Circuit (ESIC) is implemented in this design to exclusively control each L...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2014
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| Online Access: | http://hdl.handle.net/10356/61466 |
| _version_ | 1811696163554852864 |
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| author | Hendika, Fatkhi Nurhuda |
| author2 | Goh, Wang Ling |
| author_facet | Goh, Wang Ling Hendika, Fatkhi Nurhuda |
| author_sort | Hendika, Fatkhi Nurhuda |
| collection | NTU |
| description | Novel Battery Management System (BMS) for electric vehicle is proposed to enhance system accuracy and reliability with regards to safety issue. Unlike conventional BMS which is done in module level, Embedded System Integrated Circuit (ESIC) is implemented in this design to exclusively control each Lithium-ion battery cell of electric vehicle.
This report presents transistor level design and simulation of power supply management module of ESIC. Switched capacitor (SC) based DC-DC converter is implemented for cost and area optimization. A Global Foundries (GF) 0.18µm CMOS technology is used in this design. A combined three conversion topologies at 100 kHz is proposed to cater wide input range of the converter, 2.5V-4.5V. Excellent accuracy and output regulation capability is obtained with output ripple and error of ≤6mV and ≤1.3% respectively from fixed output voltage of 1V. Proportional Integral (PI) compensator is built for close-loop feedback compensation and successfully enhances load and line regulation. Finally, the peak efficiency of 70.76% is obtained with proper selection of dead time between two non-overlapping clocks. |
| first_indexed | 2024-10-01T07:35:00Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/61466 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:35:00Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/614662023-07-07T16:14:13Z Design of switched-capacitor dc-dc converter for battery management system in electric vehicle Hendika, Fatkhi Nurhuda Goh, Wang Ling School of Electrical and Electronic Engineering Centre for Integrated Circuits and Systems VIRTUS IC Design Centre of Excellence DRNTU::Engineering::Electrical and electronic engineering::Integrated circuits Novel Battery Management System (BMS) for electric vehicle is proposed to enhance system accuracy and reliability with regards to safety issue. Unlike conventional BMS which is done in module level, Embedded System Integrated Circuit (ESIC) is implemented in this design to exclusively control each Lithium-ion battery cell of electric vehicle. This report presents transistor level design and simulation of power supply management module of ESIC. Switched capacitor (SC) based DC-DC converter is implemented for cost and area optimization. A Global Foundries (GF) 0.18µm CMOS technology is used in this design. A combined three conversion topologies at 100 kHz is proposed to cater wide input range of the converter, 2.5V-4.5V. Excellent accuracy and output regulation capability is obtained with output ripple and error of ≤6mV and ≤1.3% respectively from fixed output voltage of 1V. Proportional Integral (PI) compensator is built for close-loop feedback compensation and successfully enhances load and line regulation. Finally, the peak efficiency of 70.76% is obtained with proper selection of dead time between two non-overlapping clocks. Bachelor of Engineering 2014-06-10T07:35:26Z 2014-06-10T07:35:26Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/61466 en Nanyang Technological University 79 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Integrated circuits Hendika, Fatkhi Nurhuda Design of switched-capacitor dc-dc converter for battery management system in electric vehicle |
| title | Design of switched-capacitor dc-dc converter for battery management system in electric vehicle |
| title_full | Design of switched-capacitor dc-dc converter for battery management system in electric vehicle |
| title_fullStr | Design of switched-capacitor dc-dc converter for battery management system in electric vehicle |
| title_full_unstemmed | Design of switched-capacitor dc-dc converter for battery management system in electric vehicle |
| title_short | Design of switched-capacitor dc-dc converter for battery management system in electric vehicle |
| title_sort | design of switched capacitor dc dc converter for battery management system in electric vehicle |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Integrated circuits |
| url | http://hdl.handle.net/10356/61466 |
| work_keys_str_mv | AT hendikafatkhinurhuda designofswitchedcapacitordcdcconverterforbatterymanagementsysteminelectricvehicle |