Abstract



"Partial power processing" refers to some nonisolated architectures that process less power than the nominal power delivered to the load. However, they process the same or higher indirect power than the basic stepdown (buck) or stepup (boost) cells. Instead of using the sum of the nominal power (P out ) of each building block to compare different architectures, indirect power (P ind ) is a better metric, because there is an amount of direct power (P dir ) transferred to the load that does not add volume nor losses to the components of the circuit. The fundamental minimum possible amount of P ind for a power supply system specification is termed as differential power (P diff ).In this paper, a high level methodology based on Continuous Power Models (CPMs) and VA interpretation is used to calculate the amount of power processed by the "Partial Power Architectures" (PPAs), and it is found that at architecture level they have the same P diff as the basic nonisolated conversion cells, so it is basically a different interpretation of the ports. The basic nonisolated conversion cells, e.g., buck for stepdown and boost for stepup, intrinsically have partial power processing. Nevertheless, "partial power architectures" are useful to analyze, compare and synthesize the power converters that process P diff by inductive, capacitive, resonant or autotransformer mechanism.  
International

Si 
Congress

20th Workshop on Control and Modeling for Power Electronics (COMPEL) 

960 
Place

Toronto, ON, Canada 
Reviewers

Si 
ISBN/ISSN

10935142 

doi: 10.1109/COMPEL.2019.8769667. 
Start Date

17/06/2019 
End Date

20/06/2019 
From page

1 
To page

8 

Revisiting 'Partial Power Architectures' from the 'Differential Power' Perspective 