Abstract
The expediency of using a variable frequency drive for pumping units was repeatedly proved both from the point of view of the economic component and the technological one. However, the construction of automatic control systems for the operating parameters of pumping stations is mainly based on maintaining the pressure setpoint and does not include monitoring the efficiency of the aggregates working in the group and, the more so, its regulation. In this paper, an algorithm is developed for the energy efficient management of centrifugal pump units, which allows not only maintaining the pressure setpoint, but also optimizing their efficiency.
Highlights
Energy saving at pumping stations is achieved by using frequency converters to regulate the rotor speed of pump units
The process proceeds by disconnection of one pump unit from the frequency converter and connecting it directly to the network with the practically simultaneous connection of the frequency converter to another centrifugal pump unit
This method of regulation is quite effective, but not enough energy efficient, since the automatic control system can maintain the pressure at a given point of the hydraulic network with a sufficient degree of accuracy, but the efficiency of the pumping units is not monitored in any way
Summary
Energy saving at pumping stations is achieved by using frequency converters to regulate the rotor speed of pump units. The process proceeds by disconnection of one pump unit from the frequency converter and connecting it directly to the network with the practically simultaneous connection of the frequency converter to another centrifugal pump unit. This method of regulation is quite effective, but not enough energy efficient, since the automatic control system can maintain the pressure at a given point of the hydraulic network with a sufficient degree of accuracy, but the efficiency of the pumping units is not monitored in any way
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