Power conversion system
US8964431B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2009 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Oct 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/493
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion system includes n (n being an integer of 2 or more) power conversion devices (P1 to P4) connected in parallel to a load (4); and a communication line (2) connected to the n power conversion devices (P1 to P4). Each of power conversion devices includes a communication circuit (10) which transmits a load current value detected by a current sensor (37) to each of other (n−1) power conversion devices through the communication line (2), and receives (n−1) load current values transmitted through the communication line (2) from other (n−1) power conversion devices; and an operation circuit (11) calculating a shared current and a cross current of the corresponding power conversion device based on the n load current values. Accordingly, a wiring line is prevented from becoming complicated even when the number of power conversion devices is increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.