1results about How to "Avoid harmonic interference" patented technology

This application discloses a control method and related apparatus for a charging and discharging system, relating to the technical field of new energy vehicles. The charging and discharging system includes a charging pile circuit and an on-board charger. The charging pile circuit is used to connect to an external power grid, and the on-board charger is used to connect to a battery. The control method includes: when the on-board charger and the charging pile circuit are electrically connected, determining a target operating mode; if the current mode is determined to be AC ​​charging, controlling the charging pile circuit to draw power from the external power grid and transmit AC power to the on-board charger, so that the on-board charger converts the received AC power into DC power according to a drive signal and outputs it to the battery; if the current mode is determined to be DC discharging, controlling the on-board charger to be in a direct-on state, so that the DC power output from the battery is output to the charging pile circuit via the on-board charger, and then controlling the charging pile circuit to transmit the received DC power to the external power grid. This application can reduce the discharge load on the power grid during peak electricity consumption periods.