| 摘要 |
A power supply device for a nonlinear, time-varying load has a multi-phase power system. The load and a reactive power compensator are connected to the phases of the power system. The reactive power compensator is embodied as a multilevel converter with multiple strands, each connected to one of the power system phases and to the other strands at a common star point. The power supply device has a filter circuit that filters harmonics of load and converter currents. The filter circuit has multiple strands, each connected to one of the power system phases and to the other strands at a common star point of the filter circuit, which is connected to the common star point of the multilevel converter such that the common star point of the multilevel converter is connected to the power system phases both via the strands of the multilevel converter and via the filter circuit.
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