| 摘要 |
PCT No. PCT/DK97/00434 Sec. 371 Date Apr. 9, 1999 Sec. 102(e) Date Apr. 9, 1999 PCT Filed Oct. 8, 1997 PCT Pub. No. WO98/15790 PCT Pub. Date Apr. 16, 1998The invention concerns a method for speed control of a compressor, particularly a refrigeration compressor, and a control arrangement using this method. The speed control is effected in that a control arrangement varies the speed of an electric motor in dependence of simple ON/OFF signals from a thermostat placed in the surroundings to be cooled. The method according to the invention is characterized in that the starting speed of the compressor in a following ON period is reduced in relation to the final speed in the previous ON period. A continuous reduction of the starting speed of each ON period results in a self-regulating control giving long compressor operation times and an averagely low speed resulting in energy savings. A control arrangement using this method is also described. |
