| 摘要 |
PROBLEM TO BE SOLVED: To provide an inverter device for distributed power supply that can stably maintain a frequency and a voltage of a power system in cooperation with a rotary generator.SOLUTION: An inverter device 110 has a voltage detection section 9 for detecting a system voltage of a power system 2 and estimates a rotational phase of a rotary generator from the system voltage detected by the voltage detection section 9 by a rotational phase analysis section 10. Further, the inverter device 110 is configured so as to generate an AC reference waveform on the basis of the rotational phase estimated by a reference waveform generation section 12 and to generate an AC waveform matched with the rotational phase of the rotary generator. It is desirable that a waveform of the system voltage excluding high frequency components be observed as an estimation method of the rotational phase. Furthermore, a voltage instantaneous value control system by a voltage control section 13 is preferable in generation of the AC waveform. |
