| 摘要 |
To eliminate mains fluctuations, at least one signal dependent on the mains frequency is recorded and stored, and a fluctuation is detected by comparing consecutively stored signals. After detection of a fluctuation, at least one parameter of the regulator which determines the voltage or the frequency is varied in such a way that the fluctuation is attenuated. The adjustment time of pronounced mains fluctuations is increased by the use of a PI output regulator (4). |
