Description

The control system can be made on the basis of programmable logic controllers (PLC) firms such as Allen Bradley, Siemens, Mitsubishi, Beckhoff and any other firm by Customer's request. PLC allows you to store the parameters of the HPS in the memory and transfer via the interface RS-485 or Ethernet all the technological parameters of the pump unit to the upper automation level of the Customer. The control station can be also equipped with a frequency drive Danfoss, Mitsubishi, ABB, Schnider Electric and other Variable Frequency Drives (VFD) at the Customer's request. The algorithms of pumping unit control provide PID (automatic maintenance of a predetermined flow rate, discharge pressure by correcting the frequency of the electric engine and controlled shut-off valve). And because of that, it is possible to keep up the work of pump units at the zone of maximum efficiency (which means - minimal energy consumption), because of the necessary engine rotation speed of a pump unit which provides specified flow rate and discharge pressure is automatically selected by the system. A predetermined pressure and flow rate will be provided by automation at an output of installation, and there will be changes in conditions of injection, such as changing of well's injection capacity.