Power processing and energy storage

A method including:

• for multiple power sources coupled in parallel:
• at a dense tier of power converters coupled to the multiple power sources, a first number of power converters in the dense tier being proportional to a total number of the multiple power sources:
• applying a first power correction component to a first subset of the multiple power sources to generate a first target output determined for series coupling of the multiple power sources;
• applying a second power correction component a second subset of the multiple power sources to generate a second target output determined for series coupling of the multiple power sources, the second target output having a difference in power level from the first target output;
• and
• applying, via virtual tier operation, a third power correction component to the first subset of the multiple power sources and a fourth power correction component to the second subset of the multiple power sources to correct the first target output and second target output for parallel coupling;
• and
• at a sparse tier of power converters coupled to the multiple power sources through the dense tier, a second number of power converters in the sparse tier dependent on a model for estimating the difference in power level:
• correcting for the difference in power level for the multiple power sources coupled in parallel.

A method including:

• for multiple power node connection ports connected in parallel, the multiple power node connection ports including:
• a first connection port to support a first power flow range, the first power flow range spanning one or more first expected power flow levels for a first defined portion of a group of power stores;
• and
• a second connection port to support a second power flow range, the second power flow range spanning one or more second expected power flow levels for a second defined portion of the group of power stores:
• executing a first stage of power processing at a dense converter tier coupled to the multiple power node connection ports, by:
• at a first dense tier power converter coupled to at least the first connection port:
• providing a first series power correction component from within the first power flow range to a first series interim power flow for series coupling of the multiple power node connection ports;
• and
• providing, via virtual tier operation, a first duality correction component to convert the first series interim power flow to a first parallel interim power flow for flow for parallel coupling of the multiple power node connection ports;
• and
• at a second dense tier power converter coupled to at least the second connection port:
• providing a second series power correction component from within the second power flow range to a second series interim power flow for series coupling of the multiple power node connection ports;
• and
• providing, via virtual tier operation, a second duality correction component to convert the second series interim power flow to a second parallel interim power flow for parallel coupling of the multiple power node connection ports;
• and
• executing a second stage of power processing at a sparse converter tier coupled to the multiple power node connection ports via the dense converter tier, by converting a combined power flow to a uniform model-corrected target, the combined power flow including at least a portion of each of the first and second parallel interim power flows.