Multi-axis energy regulation and control method based on electro-hydraulic servo pump control multi-axis energy regulation and control system
An electro-hydraulic servo and control system technology, applied in servo motors, servo motor components, fluid pressure actuation system components, etc., can solve the problems of system energy waste, multiple servo motors working together, energy consumption, etc., to reduce energy The effect of wasting and improving energy utilization
Active Publication Date: 2021-11-30
YANSHAN UNIV
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Problems solved by technology
[0003] The principle of the electro-hydraulic servo valve control system is to control the position and pressure of the hydraulic cylinder by controlling the opening size of the servo valve. Although this technology has good position control accuracy, due to the complex system configuration (including hydraulic oil source, pipeline system , control valve group and servo cylinder), resulting in low equipment integration and high installation cost, coupled with the constant pressure operation of the hydraulic oil source and the throttling loss of the pipeline and valve port, resulting in waste of system energy; in addition, due to the servo valve resistance The pollution ability is poor, and the oil cleanliness level is high (NAS3~5). In order to ensure the reliable operation of the system, the system needs to be equipped with a precision filter device, which increases the installation cost and also puts forward strict requirements for equipment maintenance.
[0004] The electro-hydraulic servo pump control multi-axis energy control system is controlled by servo motors, but in actual working conditions, not only the servo motors are usually working independently, but there are cases where multiple servo motors work together
And at present, most of the energy of the electro-hydraulic servo pump control multi-axis energy regulation system is consumed by braking resistors, and some of it is consumed in the form of heat energy
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[0054] In order to elaborate the technical content, achieved purpose and effect of the present invention, the following will be described in detail in conjunction with the accompanying drawings.
[0055] Such as figure 1 As shown, the principle of the electro-hydraulic servo pump control multi-axis energy regulation system of the present invention and the energy flow of the servo motor 1 under different working conditions are realized in this way:
[0056] The power grid supplies power to the servo motor 1, and the servo motor 1 is connected to the two-way hydraulic pump 2 through a coupling. The required pressure and flow; the charge accumulator 4 is connected to the low pressure side of the two-way hydraulic pump 2 to charge oil, thereby compensating the leakage of the electro-hydraulic servo pump control multi-axis energy regulation system; the first one-way valve 31 and the second one-way valve The directional valve 32 is respectively connected with the two cavities of th...
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The invention provides a multi-axis energy regulation and control method based on an electro-hydraulic servo pump control multi-axis energy regulation and control system. The multi-axis energy regulation and control method comprises the following steps: S1, building electro-hydraulic servo pump control units; S2, building an electro-hydraulic servo pump control multi-axis energy regulation and control system; S3, conducting working condition analysis on the electro-hydraulic servo pump control units; and S4, performing energy regulation and control and energy feedback on the electro-hydraulic servo pump control multi-axis energy regulation and control system, adjusting the rotating speed and torque output by the servo motor regulated by a control servo driver, and detecting the working condition of the servo motor of each electro-hydraulic servo pump control unit and the relationship between the total energy generated by the servo motor and the total energy consumed by the servo motor through force and displacement data acquired by displacement sensors and pressure sensors so as to control the energy feedback of the electro-hydraulic servo pump control multi-axis energy regulation and control system. The electro-hydraulic servo pump control multi-axis energy regulation and control system is effectively combined with a common direct current bus technology, so that the energy utilization rate of the whole system is improved.
Description
technical field [0001] The invention relates to the field of electro-hydraulic servo pump-controlled multi-axis energy regulation systems, in particular to a multi-axis energy regulation method based on electro-hydraulic servo pump-controlled multi-axis energy regulation systems. Background technique [0002] The electro-hydraulic servo system includes two control forms, one is the electro-hydraulic servo pump control multi-axis energy regulation system, and the other is the electro-hydraulic servo valve control system. The specific configuration of the electro-hydraulic servo pump control multi-axis energy control system is composed of a servo motor, fixed pump, function valve, oil charge accumulator, hydraulic cylinder, controller, driver, etc. It has also been popularized and applied in the hydraulic system. It has a high degree of integration, a small footprint for equipment, and effectively saves layout space for pipelines. The reliability and safety are higher than the...
Claims
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IPC IPC(8): F15B1/02F15B11/08F15B13/04F15B21/08F15B21/14H02J3/38
CPCF15B1/02F15B11/08F15B13/04F15B21/14F15B21/087H02J3/381
Inventor 陈革新陆建新杨明昆张天贵刘会龙闫桂山
Owner YANSHAN UNIV