A method of charging a battery pack via an off-board energy source uses an interleaved boost converter and closed loop control. The energy source outputs a charging current via the DC charging port during a direct current fast charge (DCFC) process. The controller detects a voltage inconsistency condition in which the voltage capacity of the battery pack exceeds the voltage capacity of the energy source. In response to the condition, an increase in the charging current over time is recorded as a current trajectory, and an open-loop equivalent time constant is extracted from the current trajectory. The time constant of the PI control block is set to be substantially equal to the equivalent time constant. The PIM uses proportional-integral control to control in a closed loop. The charging current is controlled in a continuous current conduction mode during the DCFC process.
一种经由非车载能量源对电池组充电的方法使用交错式升压转换器和闭环控制。能量源在直流快速充电(DCFC)过程期间经由DC充电端口输出充电电流。控制器检测电压不一致状况,在电压不一致状况中,电池组的电压容量超过能量源的电压容量。响应于该状况,将充电电流随时间的上升记录为电流轨迹,并从电流轨迹提取开环等效时间常数。PI控制块的时间常数被设置为基本等于等效时间常数。PIM使用比例‑积分控制以闭环进行控制。充电电流在DCFC过程期间以连续电流导通模式控制。
DC fast charging using closed loop control of multifunctional inverter-based boost converter
使用多功能基于逆变器的升压转换器的闭环控制进行DC快速充电
2024-04-19
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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