Multi-mode electric energy router independent of communication and seamless switching control method thereof

The invention belongs to the technical field of power electronics and particularly relates to a multi-mode electric energy router independent of communication and a seamless switching control method thereof. The electric energy router comprises four control ports which are respectively connected with a photovoltaic converter, an energy storage converter, and a grid-connected inverter and a load inverter in a power electronic transformer, wherein a photovoltaic array and a storage battery pack are respectively connected with a DC bus through the photovoltaic converter and the energy storage converter, and the grid-connected inverter and the load inverter are respectively connected with the DC bus. The method comprises steps that the energy storage converter is started, and a DC bus voltageis stabilized; the photovoltaic converter adopts a forward disturbance observation mode to realize a maximum power point tracking mode, and a reverse disturbance observation mode is adopted to realizea limited power operation