The invention provides a method for dynamically adjusting vehicle-mounted charging power, a control protection box and a vehicle-mounted charger, and the method comprises the following steps: detecting the power supply voltage of an access point of the vehicle-mounted charger, and detecting the power supply voltage according to a preset frequency; according to the detected power supply voltage, the charging current gear of the vehicle-mounted charger at the next moment is determined, and the charging current gear is a charging current range or a determined charging current value; and the charging current of the vehicle-mounted charger is adjusted according to the charging current gear of the vehicle-mounted charger at the next moment, wherein the power supply voltage and the charging current of the vehicle-mounted charger have positive correlation. The problem of low voltage of a power grid caused by large-power charging of a large number of new-energy electric vehicles accessed to a rural power grid after going down to the country can be solved.
本发明提供一种动态调节随车充功率的方法、控制保护盒及随车充电器,该方法包括如下步骤:检测随车充电器接入点供电电压,其中对供电电压按照预设频率进行检测;根据检测到的供电电压,确定随车充电器下一时刻的充电电流挡位,所述充电电流挡位是一个充电电流范围或确定的充电电流值;根据所述随车充电器下一时刻的充电电流挡位调节所述随车充电器的充电电流,其中所述随车充电器的供电电压和充电电流具有正相关性。本发明可以解决大量新能源电动汽车下乡后接入农网大功率充电而造成的电网低电压问题。
Method for dynamically adjusting vehicle-mounted charging power, control protection box and vehicle-mounted charger
一种动态调节随车充功率的方法、控制保护盒及随车充电器
2024-03-22
Patent
Electronic Resource
Chinese
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