Pressure maintaining system adopting variable-frequency pressure maintaining equipment and self-adaptive control method

A variable frequency pressure and pressure technology, which is applied in the field of pressure maintenance system and adaptive control, can solve problems affecting the life of pressure maintenance equipment, energy loss, system energy efficiency and economy, etc.

Active Publication Date: 2021-05-11
CHINA YANGTZE POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a pressure maintenance system and an adaptive control method using frequency conversion pressure maintenance equipment, aiming at solving the problem of consumption load and pressure maintenance equipment The output power does not match, that is, the system pressure does not match the speed of the consumption drop and the pressurization capacity of the pr

Method used

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  • Pressure maintaining system adopting variable-frequency pressure maintaining equipment and self-adaptive control method
  • Pressure maintaining system adopting variable-frequency pressure maintaining equipment and self-adaptive control method
  • Pressure maintaining system adopting variable-frequency pressure maintaining equipment and self-adaptive control method

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Embodiment

[0096] The invention is applied to the start-stop control of the pressurized oil pump of the hydraulic system of the governor of a power station. The system is designed with 4 variable frequency pressurized oil pumps. The method of the present invention will be described in detail below in conjunction with this embodiment.

[0097] By adopting the method of the present invention, the detailed steps of the control method of the pressurized oil pump of the hydraulic system of the governor of a power station are as follows:

[0098] 1. The controller of the governor hydraulic system is initialized, and the pressure set by the user through the human-computer interaction device is collected to maintain the rated pressure P of the system 额 , the maximum pressure P 最高 , higher pressure P 较高 , lower pressure P 较低 , the minimum pressure P 最低 , 4 sets of variable frequency oil pump or air compressor power supply frequency and pressurization capacity associative curve table and othe...

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Abstract

The invention discloses a pressure maintaining system adopting variable-frequency pressure maintaining equipment and a self-adaptive control method. The system comprises a pressure container, a non-pressure container and pressure maintaining equipment; and the pressure container is connected with the non-pressure container through pressure maintaining equipment. The pressure container is provided with a sensor. The sensor and the pressure maintaining equipment are both connected with a controller, and the controller is connected with a man-machine interaction device. The invention aims to solve problems that the consumption load is not matched with the output power of the pressure maintaining equipment, the pressure maintaining equipment is frequently started, stopped or loaded and unloaded, the abrasion consumption of equipment original parts is aggravated, the service life of the pressure maintaining equipment is influenced, energy loss is caused, and the system energy efficiency and economy are influenced.

Description

technical field [0001] The invention belongs to the field of industrial control, and in particular relates to a pressure maintenance system and an adaptive control method using variable frequency pressure maintenance equipment. Background technique [0002] In industrial control, there are many applications that require pressure maintenance systems. For example, the governor of the hydro-generator set adjusts the opening of the guide vane, the power and frequency of the unit, and the hydraulic system of the governor is required; Medium and low pressure gas systems are required for positive pressure systems, governor pressure oil tank supplementation, and air brake mechanical braking systems. Governor hydraulic systems and medium and low pressure gas systems are typical pressure maintenance systems. [0003] The pressure maintenance system is usually designed with multiple fixed oil pumps or air compressors of the same model and specification as the pressure maintenance equi...

Claims

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Application Information

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IPC IPC(8): G05D16/20
CPCG05D16/2026
Inventor 涂勇
Owner CHINA YANGTZE POWER
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