Energy management method and system for electric bus charging and swap station

The invention relates to the field of electric buses and provides energy management method and system for an electric bus charging and swap station. The method includes: establishing a charge load demand prediction model; and calculating charge load demand according to the model and optimally dispatching operating modes of a battery charger. The charge load demand prediction model used in the energy management method comprises a swap bus number hourly prediction model, a charging start time prediction model, a pre-swap trip distance model, a charging duration model, and a charging load model. The charging load demand model is more satisfactory practically so that load prediction precision is high. A charging dispatch model is available for optimization of more targets, highly flexible and convenient to operate by the aid of a single-target optimization function and a multi-target optimization function. The energy management system comprises a charging and swap station dispatch optimization module, a capacity allocation module, a charging load demand prediction module, and an external grid power price module, wherein the capacity allocation module, the charging load demand prediction module and the external grid power price module are respectively connected to an input end of the charging and swap station dispatch optimization module.