| 摘要 |
Method and system for start and operation of an electrically driven load, e.g. a compressor (1) or pump, by power supply from a mechanical driver, e.g. a turbine or combustion engine, whereby the load is mechanically connected to a first electrical machine, and said mechanical driver is mechanically connected to a second electrical machine. The method comprises 1) electrically interconnecting the first electrical machine to the second electrical machine at standstill or when the first and or second machine have low speed; 2) in an acceleration phase, accelerating the first electrical machine by accelerating the second electrical machine with the mechanical driver; and 3) when the first electrical machine has reached a predefined rotational speed, synchronizing it with a local electrical power network and connecting it to that network. |
