Title page for etd-0809113-131326


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URN etd-0809113-131326
Author Min-Jui Chen
Author's Email Address No Public.
Statistics This thesis had been viewed 5346 times. Download 458 times.
Department Electrical Engineering
Year 2013
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Applying Used Electric Vehicle Battery in DC Microgrid Operations
Date of Defense 2013-08-16
Page Count 114
Keyword
  • Used EV batteries
  • SOH
  • Second life of batteries
  • Islanding
  • DC microgrid
  • Abstract Power system may fail or go unstable due to either man-made or natural reasons. Some of the reliability problems can be solved by implementing distributed energy generator, such as solar photovoltaic and wind farm in the grid. Using high capacity energy storage system with renewable generator is an effective but expensive approach. In order to reduce the investment cost of energy storage system, used EV batteries are proposed. Once batteries have reached the end of their useful life in vehicles, at around 70% to 80% of initial capacity, placing them into a localized energy storage system will extend their lifetime usage and further reduce the cost on distributed generators integration.
    In this thesis, an isolated DC power system including solar photovoltaic and used EV batteries is investigated. Batteries with different state of health (SOH) would have different power capacity. Discharging rates of multiple batteries with different SOH are investigated in order to achieve the largest energy output or highest efficiency of storage system. Using the obtained battery discharging ratios, the parameters in the proposed DC microgrid droop control can be obtained. Dynamic simulations of the DC microgrid operations are presented.
    Advisory Committee
  • Ching-Tsai Pan - chair
  • Chang-Huan Liu - co-chair
  • Sheng-Nian Yeh - co-chair
  • Chan-Nan Lu - advisor
  • Files
  • etd-0809113-131326.pdf
  • Indicate in-campus at 2 year and off-campus access at 2 year.
    Date of Submission 2013-09-09

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