Can the power station open the refrigerator?

Possibly, depending on refrigerators and portable power stations.
For example, the annual energy consumption of this standard refrigerator is estimated to be 608 kWh. This is equivalent to 1.67 kWh per day, or 1670 kWh per day.
1670 watt hours per day is equivalent to less than 70 watt hours per hour. If you have a short power outage, you only need to power your refrigerator. A 200-watt-hour power station can operate for nearly three hours. You will need a higher watt-hour estimate to make your refrigerator run longer. The mini refrigerator has a longer service life than the large refrigerator.
Before attempting, be sure to check the electrical requirements of specific refrigerators and portable power stations, especially the peak/starting power of refrigerators.