Power supply device has power supply branches with parallel-switched power source blocks which are provided with power supply cell switched with respect to power supply branches by switch

摘要

The power supply device (1) has a parallel-connected power supply branches (1a-1c) that are connected to respective phase terminals (2a-2c) of three-phase electrical machine (2). Each power supply branch is arranged with parallel-switched power source blocks (3a-3n) which are provided with a power supply cell (9) switched with respect to the power supply branches by a switch (7). The power supply cell is comprised with photovoltaic module or battery cell. Independent claims are included for the following: (1) method for operating power supply device; and (2) power supply system.