Variable-rotating-speed hydraulic power source flow control system and method

A technology of hydraulic power source and flow control, applied in the direction of fluid pressure actuation system components, fluid pressure actuation devices, mechanical equipment, etc., can solve the problems of limited control algorithm, many system links, serious time delay, etc., to improve the control Accuracy, fast response, and the effect of eliminating steady-state errors

Inactive Publication Date: 2015-08-05
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, most hydraulic speed control systems still adopt large load speed closed-loop control, which has problems such as many system links, serious time lag, and difficult adjustment. The control algorithm is also limited to the conventional simple PID control method. Conflict cannot be resolved

Method used

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  • Variable-rotating-speed hydraulic power source flow control system and method
  • Variable-rotating-speed hydraulic power source flow control system and method
  • Variable-rotating-speed hydraulic power source flow control system and method

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Embodiment Construction

[0025] The present invention is described in further detail below in conjunction with accompanying drawing:

[0026] refer to figure 1 and figure 2 , the variable speed hydraulic power source flow control system of the present invention includes a controller 1, a servo driver 9, a permanent magnet motor 10, a gear pump 11, a fuel tank, a motor 12 and a flow rate for detecting the flow information of the oil outlet of the gear pump 11 Sensor 8; the output end of the servo driver 9 is connected with the control end of the permanent magnet motor 10, the output shaft of the permanent magnet motor 10 is connected with the drive shaft of the gear pump 11, and the oil outlet of the fuel tank is connected with the inlet of the gear pump 11. The oil port is connected, the oil outlet of the gear pump 11 is connected with the oil inlet of the motor 12, the oil outlet of the motor 12 is connected with the oil inlet of the fuel tank, the output end of the flow sensor 8 is connected with ...

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Abstract

The invention discloses a variable-rotating-speed hydraulic power source flow control system and method. The system comprises a controller, a servo driver, a permanent magnetic motor, a gear pump, an oil tank, a motor and a flow sensor for detecting flow information in an oil outlet of the gear pump, wherein the output end of the servo driver is connected with the control end of the permanent magnetic motor; an output shaft of the permanent magnetic motor is connected with a driving shaft of the gear pump; an oil outlet of the oil tank is communicated with an oil inlet of the gear pump; an oil outlet of the gear pump is communicated with an oil inlet of the motor; an oil outlet of the motor is communicated with an oil inlet of the oil tank; the output end of the flow sensor is connected with the input end of the controller; and the output end of the controller is connected with the input end of the servo driver. The system and the method can quickly control the variable-rotating-speed hydraulic power source flow in real time with high precision.

Description

technical field [0001] The invention belongs to the technical field of hydraulic power system control, and relates to a flow control system and method, in particular to a variable speed hydraulic power source flow control system and method. Background technique [0002] Hydraulic transmission and control technology is a highly interdisciplinary and highly comprehensive technical discipline integrating hydraulic technology, microelectronics technology, sensing and detection technology, computer control and modern control theory, etc. . Most of the hydraulic equipment needs to control the speed of the actuator, that is to say, the speed control is the core of the hydraulic equipment, which is generally divided into two valve control forms: throttling speed regulation and volumetric speed regulation. With the continuous popularization of AC motor frequency conversion speed regulation technology, the method of variable frequency volumetric speed regulation (variable speed contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/00
CPCF15B21/02
Inventor 马玉谷立臣
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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