Electrical transmission control system and method for well logging winch

A technology of control system and electric transmission, which is applied in hoisting device, clockwork mechanism, etc., to achieve precise control, high efficiency and reduced energy consumption
CN102267673AActive Publication Date: 2011-12-07廊坊新赛浦特种装备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
廊坊新赛浦特种装备有限公司
Publication Date
2011-12-07

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Abstract

The invention discloses an electrical transmission control system and method for a well logging winch. The system comprises a manual control unit, an instruction processing unit, an instruction execution unit and an information acquisition unit, wherein the manual control unit is used for manually inputting control signals; the instruction processing unit is used for receiving the control signalsinputted by the manual control unit and outputting control instructions to the instruction execution unit; the instruction execution unit comprises an information display module, an engine control module, and a frequency conversion module; the information acquisition unit is used for acquiring the execution state information of the winch and the instruction execution unit; and the instruction processing unit generates control instructions according to the control signals inputted by the manual control unit and the execution state information of the winch and the instruction execution unit acquired by the information acquisition unit. By using the system and method disclosed by the invention, a closed-loop control can be realized by adopting a frequency variation speed control technology and collective control devices, so that a reliable, accurate control can be provided for the constant-torque and low-speed logging operation of the well logging winch.
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Description

technical field

[0001] The invention relates to an electric drive transmission system, in particular to an electric drive transmission control system of a well logging drawworks. Background technique

[0002] At present, the well-logging drawworks used in known oilfields adopt a closed hydraulic transmission system, which is mainly composed of a two-way plunger variable hydraulic oil pump, a variable (or quantitative) plunger hydraulic motor and a corresponding two-way electric proportional control handle. Change the displacement of the oil pump (or motor) to change the rotation speed of the motor, and realize the forward and reverse rotation of the motor by changing the control direction of the electric proportional control handle, so as to realize the forward rotation, reverse rotation and fast and slow speed of the logging winch. control.

[0003] However, the pressure and flow of the hydraulic system fluctuate greatly, coupled with the leakage of the hydraulic system, i...

Claims

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