Scalable, buffered differential power processing architecture

A system comprising:

• a plurality of differential power processing (DPP) units, including a first DPP unit and a second DPP unit, each of the first DPP unit and the second DPP unit comprising a bi-directional converter having a first connection and a second connection, wherein the first connection of the first DPP unit and the first connection of the second DPP unit are connected (i) to a first set of variable power source or sink unit and a second set of variable power source or sink unit, respectively,
• wherein the first connection of the first DPP unit is coupled to the first variable power source or sink unit and is configured to push or pull, differentially, power for the first variable power source or sink unit when there is a mismatch between (i) the first variable power source or sink unit and (ii) another variable power source or sink unit, and wherein the first connection of the second DPP unit is coupled to the second variable power source or sink unit and is configured to push or pull, differentially, power for the second variable power source or sink unit when there is a mismatch between the second power source or sink unit and another variable power source or sink unit;
• wherein each second connection of the plurality of DPP units is coupled to one or more energy storage units in a bus, wherein the energy storage is sufficiently sized to mitigate transient conditions propagated from a plurality of variable power source or sink units, including the first and second variable power source or sink units, to be fully absorbed or drawn from the energy storage.