Battery-Integrated Multiple-Input Multiple-Output Energy Mixer for Power Packet Distribution System

Power can be delivered in a packet form using a power packet distribution system (PPDS). It is capable of avoiding intermediate voltage conversion stages by sending power packets of different voltage levels on the same power line. A mixer of the PPDS is used to generate PPs of different voltage levels. A four-port converter as a mixer is proposed, which can interface with a renewable energy source, a battery and loads through two power lines simultaneously. The battery storage serves as a buffer to mitigate intermittency of renewable energy sources. PPs can be delivered by configuring the proposed mixer in different modes. The proposed mixer has a bidirectional load port, which can be utilized for power sharing between load ports. The proposed mixer uses a single inductor to achieve a compact design. Experimental results are presented to verify the functionality of the proposed mixer.