Electric energy router for household user transaction and control method

The invention discloses an electric energy router for household user transaction and a control method. The electric energy router comprises an electric energy metering module, an electric energy conversion module, communication equipment, a controller and a touch screen. During control, in a conventional mode, a photovoltaic battery is fully charged, whether a user has a direct-current load demand is judged, the direct-current load demand is preferentially met, and when the electric quantity of the battery is insufficient, a power grid side supplies energy; and in the electricity selling mode, judging whether the user has a direct current load electricity demand or not, and executing an electricity selling transaction instruction on the premise of meeting the direct current electricity demand of the user. In the electricity purchasing mode, the transaction power and the maximum charging power of the battery are judged; when the maximum charging power of the battery is smaller than the transaction power, the t