| 摘要 |
PURPOSE:To provide a controller for linkage/independent operation inverter in which the higher harmonic components of load current can be compensated effectively. CONSTITUTION:A current control circuit 15 detects the current of a power system S and a higher harmonic compensating current command operating circuit 20 produces a current command IH, required for compensating the higher harmonic components, from thus detected current signal. On the other hand, a current operating circuit 12 operates a current command value IPQ for power control based on an effective power control signal Pc fed from an effective power control circuit 9 and a reactive power control signal Qc fed from a reactive power control circuit 10. Both command values IH, IPQ are added at an adding circuit 21 and a current control circuit 15 controls the output current of an inverter 3 based on the added command value. |
