Solution

Module & Cell

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  • R&D Test Services
    Overview Module & Cell Vehicle and Pack HV Components

    • Characteristic Ripple Injection

    Current situation of the problem

  • When a vehicle is charging, the charging pile generates alternating current ripples of a fixed frequency and amplitude

  • When a vehicle is driven, the motor and electronic control system generate alternating current ripples with constantly changing frequencies and amplitudes

  • In the energy storage system, under the influence of PCS, the energy storage battery is subjected to AC ripple at the frequency of DC+x2

    • Solution Strategy
    Equipped with globally leading test solutions, it conducts characteristic ripple injection for various complex working conditions such as static, charging and discharging, and pulse in the actual use of electric vehicles, and studies their impact on batteries.
    Test service

    Ripple under specific operating conditions

    • Static operating condition

      Frequency: ＞1kHz
      Current：50A~400A
      95%SOC、High and low temperature

    • Charging condition

      Frequency：50Hz~15kHz
      Current：2A~200A
      0~100%SOC、High and low temperature

    • Discharge condition

      Frequency：＞1kHz
      Current：50A~200A
      0~100%SOC、High and low temperature

    • Pulse operating condition

      Square wave pulse
      Current：5A~4500A
      0~100%SOC、High and low temperature

    Durability test of double-frequency ripple for energy storage batteries

    During the system frequency regulation and peak shaving processes of energy storage batteries, double-frequency (100Hz) ripple occurs. The influence of 100Hz ripple on battery performance during DC charging and discharging is explored