| 摘要 |
Devices(10) convert source power from first sources(11) that receive solar / wind / water energy into load power destined for loads (13). The devices (10) comprise first converters (21)for converting first direct-current voltage signals from the first sources(11) to second direct-current voltage signals destined for the loads (13), first arrangements (31)for controlling the first converters(21) and regulating the second direct-current voltage signals in response to first control voltage signals, and first circuits (41)for providing the first control voltage signals. To prevent a collapse of the first direct-current voltage signals when having relatively small amplitudes, the first control voltage signals should have amplitudes equal to / larger than minimum values. The amplitudes of the first control voltage signal may be fixed, firstly fixed and secondly proportional to the amplitude of the first direct-current voltage signal, or inversely proportional / proportional to a square of the amplitude of the first direct- current voltage signal. Fig. |
