PUMP STATION ELECTRIC DRIVE AUTOMATIC CONTROL METHOD Russian patent published in 2015 - IPC F04D15/00 F04D13/12 

FIELD: electricity.

SUBSTANCE: invention relates to the field of electrical equipment and concerns a method of control of pump station with parallel operating pumps. The method is implemented by that the layout includes the system of automated control of operating modes of high-voltage asynchronous electric motors (HVAM) of pumps providing a possibility of their operation from one frequency converter in the energy effecient mode, additional system of sensors connected to the control system of the microprocessor controller. The additional process branch, an electrotechnical automation branch and standby electrotechnical branch added to the system allow by means of the signals supplied from the controller to the frequency converter to start, stop, operate jointly and alternately HVAM, both from the frequency converter, and independently of it, performing the functions of smooth start-up and regulation of speed of rotation of pump units. The creation of mathematical model in a control system is provisioned. The system disconnects the faulty equipment, evenly distributes operating time of pumps, control of HVAM taking into account the pump characteristics.

EFFECT: invention is aimed at improvement of quality of regulation, speed and reliability of the system, ensuring operation of pump station in cost-saving operating mode, depreciation and increase of service life.

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