公开(公告)号：US09605680B2

公开(公告)日：2017-03-28

申请号：US14325887

申请日：2014-07-08

申请人： Pentair Water Pool and Spa, Inc. ,  Danfoss Drives A/S

发明人： Robert W. Stiles, Jr. ,  Lars Hoffmann Berthelsen ,  Ronald B. Robol ,  Everett Cox ,  Donald Steen ,  Kevin Murphy ,  Daniel J. Hruby ,  Peter Westermann-Rasmussen ,  Gert Kjaer ,  Nils-Ole Harvest ,  Christopher Yahnker ,  Walter Woodcock, Jr. ,  Einar Kjartan Runarsson ,  Arne Fink Hansen ,  Alberto Morando ,  Florin Lungeanu

IPC分类号： G05D7/00 ,  F04F5/00 ,  F04B23/08 ,  F04D15/00

CPC分类号： F04D15/0066 ,  F04B49/065

摘要： A pumping system includes a pump for moving water. In one aspect, this is in connection with performance of an operation. The system includes a variable speed motor operatively connected to drive the pump. A value indicative of flow rate of water is determined and the motor is controlled to adjust the flow rate indicative value toward a constant. A value indicative of flow pressure is determined and the motor is controlled to adjust the flow pressure indicative value toward a constant. A selection is made between flow rate control and flow pressure control. In another aspect, the pump is controlled to perform a first operation, and is operated to perform a second water operation. Control of operation of the pump to perform the first water operation is altered in response to operation of the pump to perform the second operation.