APPLICATION CONSTANT TEMPERATURE CHARGING TECHNIQUE FOR CHARGING TIME REDUCTION OF LITHIUM ION BATTERY
Author(s):
Divya Saroopuria, Mr. Prakash Bahrani
Keywords:
Battery charging, lithium Ion battery, PID Controller, temperature control.
Abstract
Existing battery charging techniques such as Constant Current-Constant Voltage (CC-CV) method, Multistage Constant Current (MCC) method, Pulse Charging, Sinusoidal Ripple Approach (SRA), etc., are time consuming open loop approach which uses the fixed cell parameters and does not consider temperature variation while charging. The proposed Constant Temperature Constant Voltage (CT-CV) charging technique suggests the closed loop scheme using instantaneous cell voltage and temperature changes with the charging current magnitude and maintaining the temperature rise at the set value as CC-CV. Charging current is controlled using PID controller added by feed forward current. This method is inexpensive as compared to the other optimization techniques which involve high quality and high cost sensors. Results shows that the proposed technique reduces the battery charging time by 24% when compared with CC-CV technique. As per the results Requirement of fast charging can be achieved through higher ambient temperature limits. The scheme can be expanded to pack level by integrating the cells.
Article Details
Unique Paper ID: 147684

Publication Volume & Issue: Volume 5, Issue 10

Page(s): 202 - 206
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Last Date 25 September 2019


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