Investigation on the method of battery self-heating using motor pulse current

Abstract

The charging and discharging performance of lithium-ion battery at low temperature will decline greatly, which seriously affects the adaptability of electric vehicles at low temperature. This paper proposes to use the inductance characteristic of the motor stator and the switching control characteristic of the motor controller to form pulse current in the battery, and realize the self-heating of the power battery at low temperature. Using this method the heating of the battery can be achieved without any additional hardware or cost. The experimental result shows the average temperature rise rate of the power battery reaches 2.88°C/min. And the influence of different parameters on the heating effect is analyzed through the experiments, including IGBT switching frequency, d-axis voltage, motor-rotor position, and battery internal resistance.

Advancements in Battery Cooling Techniques for Enhanced Performance and Safety in Electric Vehicles: A Comprehensive Review

“…[127] Researchers utilize PCH to examine the battery's performance, safety, and reliability, valuable insights into its thermal responses and limitations. [128] Safety is paramount in this process, ensuring heating is well-controlled to prevent damage or hazardous situations. [129] The knowledge acquired from PCH testing contributes to advancing battery technologies, driving innovation for more efficient, reliable, and safer batteries in the future [130] As battery technology evolves, ongoing research and specialized techniques like PCH will pave the way for further improvements in battery performance and sustainability.…”

Investigating the Effect of Different Bidirectional Pulsed Current Parameters on the Heat Generation of Lithium-Ion Battery at Low Temperatures

“…Although AC heating methods encompass a variety of waveforms [12][13][14][15][16][17], sinusoidal alternating current (SAC) and BPC are the most commonly utilized. Zhang et al [18] employed an SAC with a frequency of 1 Hz to heat the battery from −20 • C to 5 • C in 900 s. Guo et al [19] devised an SAC heating method without lithium plating using a three-electrode battery.…”