Dealing with voltage fluctuations during the charging process of electric vehicle chargers

When electric vehicle chargers encounter voltage fluctuations during the charging process, it may affect the charging efficiency and battery health. To deal with this situation, the following measures can be taken:

First, understand the causes of voltage fluctuations

Power grid fluctuation

The voltage in the power grid may fluctuate due to the influence of other electrical equipment. Voltage fluctuations are particularly obvious during peak electricity consumption periods or when the grid load is heavy.

Problems with charging equipment:

The internal circuit of the charging pile or charging equipment may malfunction, resulting in unstable output voltage.

Power line problem:

The power supply line may have problems such as poor contact, aging or short circuit, resulting in unstable supply voltage.

Battery Management System (BMS) failure:

The BMS is responsible for monitoring and controlling the working status of the battery. If the BMS malfunctions, it may lead to unstable charging voltage.

Charging interface or cable issues:

The charging interface and cables may have problems such as looseness or damage, which can lead to unstable charging voltage.

Second, countermeasures

Inspect and repair charging piles or charging equipment:

Regularly inspect and maintain the charging piles or charging equipment to ensure their normal operation. If any malfunction is found in the internal circuit of the charging pile or charging equipment, it should be repaired or replaced in a timely manner.

Check and repair the power lines:

Check whether there are any problems such as poor contact, aging or short circuit in the power line. If any are found, they should be repaired or replaced in time.

Check and update the BMS software:

Make sure the Battery management system (BMS) software is up to date to avoid unstable charging voltage caused by software issues.

Inspect and repair the charging interface and cables:

Regularly check the connection of the charging interface and cables to ensure they are firmly connected and undamaged. If any loosening or damage is found, it should be repaired or replaced in time.

Contact the power company:

If the voltage fluctuation is caused by grid problems, you can contact the local power company to understand the grid situation and ask them for assistance in solving the voltage fluctuation problem. If necessary, the power department can be requested to make voltage adjustments.

Use voltage stabilizing equipment:

In areas with severe voltage fluctuations, it is advisable to install a voltage stabilizing device at the front end of the charging equipment to stabilize the voltage output and protect the health of the charging equipment and batteries.

Arrange the charging time reasonably:

Try to avoid charging during peak electricity consumption periods or when the grid load is heavy to reduce the impact of voltage fluctuations on the charging process.

Third, precautions

Avoid overcharging:

Voltage fluctuations may cause unstable charging current, which in turn affects charging efficiency and battery health. Therefore, during the charging process, the charging status should be closely monitored to avoid overcharging.

Regularly check battery health:

Regularly inspect and maintain the battery to ensure it is in good health. If any abnormal phenomenon is found in the battery, professional maintenance personnel should be contacted in time for handling.

Use a regular brand charger:

Choosing a charger from a regular brand can ensure that the product quality and after-sales service are guaranteed. Avoid using inferior or uncertified chargers to reduce the impact of voltage fluctuations on the charging process.

In summary, when electric vehicle chargers encounter voltage fluctuations during the charging process, timely measures should be taken to deal with them. By inspecting and repairing charging piles or charging equipment, fixing power lines, updating BMS software, and checking and repairing charging interfaces and cables, the impact of voltage fluctuations on the charging process can be effectively reduced, protecting the health of charging equipment and batteries. Meanwhile, measures such as contacting the power company, using voltage stabilizing equipment, and reasonably arranging charging time are also effective means to deal with voltage fluctuations.

Myriacle is an OEM & ODM Manufacturer for Wallbox/Portable AC Charger, Electric Vehicle Charging Cable as well as EV Adapter with CE, RoHS, FCC, UL certified.Official website Address:https://www.myriacle.com/