摘要 |
An electrical power convbrsion system for connecting an input source (11) to an a.c. electric power generation grid (13), such as a public utility, including means (27, 26) for absorbing power from the input source (11) and for converting it to power at the nominal frequency, f0, of the grid (13), and further including means (27, 26) for absorbing power from the grid (13), at frequencies above and below f0, and converting it to power at f0. |