| 摘要 |
PURPOSE:To perform an energy-saving, a reduction of a cost by following via a variable frequency source (V power source) at load increase request time, and following via a mechanical control mechanism at load reduction request time, thereby eliminating the regenerative brake. CONSTITUTION:The fact that, when the output frequency of a V power source 2 is altered to vary the control responding speed and the opening theta of a vane 6, and the control responding speed is compared, the vane control is fast at wind amount reducing time and slow at wind amount increasing time is aimed to increase the frequency of the power source 2 to first respond when the load (wind amount) increases and to respond to reduce the opening theta of the vane 6 and to then reducing the frequency at load decreasing time, the frequency is then decreased to return the opening theta of the frequency to the original position, thereby accelerating the increasing response of the wind amount. |
