An observer based on an artificial neural network was designed. The observer determines
the pumping unit performance depending on the operating point. Determination is based on …

The application of electrical drives in the control of centrifugal fans and pumps is a well-
established area that leads to substantial energy savings. It requires electrical and …

A method of taking characteristics of the pump motor drive using a hardware-in-the-loop
simulation approach is described. The models with built-in hardware and software …

This article deals with the novel approach to evaluate the technological coordinates of a
pump unit. This method is is based on the use of the theory of neural networks. The …

This paper addresses performance improvement of the centrifugal pumps running in
variable-speed applications. Focus is on the system operation in the best-efficiency region …

Adjustment of working state of the pump in order to satisfy the changing demand and hence
bringing the system outside of best efficiency region is a reason of occurrence of …

A converter-fed system is proposed which successfully estimates and regulates the
operational state of the pumping process without excess sensors. Sensorless control …

In the proposed paper, the new experimental results are described obtained from the
laboratory stand and the model developed by the authors. A method of acquiring …

The paper concentrates on improving the efficiency of the pumping system in which pumps
are run by variable speed drives. The method is applicable to system consisting of several …

To provide significant energy saving in the air and water supply systems, centrifugal
fans/pumps are driven by variable frequency induction motor drives. To reduce the cost of …