UNIVERSAL CONTROL STATION OF DOWNHOLE ELECTRICALLY DRIVEN PUMP Russian patent published in 2011 - IPC F04D15/00 F04D13/10 

FIELD: engines and pumps.

SUBSTANCE: control station 1 comprises controller 3, microprocessor computer 2, frequency converter 4 incorporating rectifier 7 of DC link, inverter 8, and gate control signal generator 9. Besides, said station includes filter 11 and two current transducer units 10 and 12. Output of inverter 8 is connected via current transducer unit 10 to input of output filter 11. Output of the latter is connected via current transducer unit 12 to output 13 of control station 1, while data output A of current transducer unit 10 is connected to first data input of computer 2. Data output A of second current transducer unit 12 is connected to second input of computer 8.

EFFECT: control over rectifier and induction motors by one control station, power savings.

2 cl, 4 dwg