Automatic intelligent setting method for the neutral position of the governor's hydraulic servo system

Abstract

The invention discloses a meso-position automatic intelligent setting system and method of a speed regulator hydraulic servo system. The meso-position automatic intelligent setting system of the speedregulator hydraulic servo system comprises human-computer interaction equipment used for realizing a human-computer interaction function and a controller, the controller displays real-time status information of control objects such as positions and frequency to inform users through the human-computer interaction equipment; the controller collects state signals of the control objects through sensors, and according to control parameters and commands issued by the users through the human-computer interaction equipment, the controller processes various input signals in real time according to logics of control programs and outputs control signals to the control objects; and the control objects include a proportional valve, a main pressure distribution valve, a water-turbine generator set and aand / or power grid. The setting method comprises a speed regulator proportional valve electric meso-position automatic intelligent setting method and a speed regulator main distribution electric meso-position automatic intelligent setting method, the meso-position automatic intelligent setting system and the method of the speed regulator hydraulic servo system aim to solve the regulation quality problems of frequent regulation of the hydraulic servo system of the speed regulator and the inability of a guide vane opening to be adjusted in place caused by the inaccurate meso-position setting ofthe main distribution of the speed regulator and the proportional valve electrical median.

Description

technical field

[0001] The invention belongs to the field of automatic control of hydropower stations, and in particular relates to an automatic intelligent setting method for the center position of a governor hydraulic servo system. Background technique

[0002] The Chinese patent "A self-diagnosis and self-positioning self-adaptive method for the hydraulic servo system of the governor", publication number (CN108468615A), proposes a self-diagnosis and self-positioning self-adaptive method for the hydraulic servo system of the governor. This method can basically realize the self-diagnosis, self-positioning and self-adaptive functions of the center position of the hydraulic servo system of the governor. When the unit is overhauled, there is room for further optimization and improvement of the setting effect, accuracy and work efficiency.

[0003] When this method is used to automatically adjust the neutral position of the proportional valve of the hydraulic servo system of t...

Examples

Embodiment

[0074] The hardware of the governor electrical control system of Xiangjiaba Power Station is B&R PCC2005, and the software application environment is B&R AS3.0. Through this development platform, the hydraulic servo system of the governor electrical control system is developed. Intelligent tuning function, write functional program blocks, embed them in the electrical control system program of the unit governor, and then upload the governor electrical control system controller to complete the software development of the automatic intelligent tuning function software for the hydraulic servo system of the governor electrical control system .

[0075] Software development interface see Figure 6 , touch screen human-computer interaction screen see Figure 7 .

[0076] Change the control mode of the governor of a certain unit of Xiangjiaba Hydropower Station to A set of controllers online, electric manual operation, proportional valves, main distribution, and servomotors as actua...

technical field

[0001] The invention belongs to the field of automatic control of hydropower stations, and in particular relates to an automatic intelligent setting method for the center position of a governor hydraulic servo system. Background technique

[0002] The Chinese patent "A self-diagnosis and self-positioning self-adaptive method for the hydraulic servo system of the governor", publication number (CN108468615A), proposes a self-diagnosis and self-positioning self-adaptive method for the hydraulic servo system of the governor. This method can basically realize the self-diagnosis, self-positioning and self-adaptive functions of the center position of the hydraulic servo system of the governor. When the unit is overhauled, there is room for further optimization and improvement of the setting effect, accuracy and work efficiency.

[0003] When this method is used to automatically adjust the neutral position of the proportional valve of the hydraulic servo system of t...

Examples

Embodiment

[0074] The hardware of the governor electrical control system of Xiangjiaba Power Station is B&R PCC2005, and the software application environment is B&R AS3.0. Through this development platform, the hydraulic servo system of the governor electrical control system is developed. Intelligent tuning function, write functional program blocks, embed them in the electrical control system program of the unit governor, and then upload the governor electrical control system controller to complete the software development of the automatic intelligent tuning function software for the hydraulic servo system of the governor electrical control system .

[0075] Software development interface see Figure 6 , touch screen human-computer interaction screen see Figure 7 .

[0076] Change the control mode of the governor of a certain unit of Xiangjiaba Hydropower Station to A set of controllers online, electric manual operation, proportional valves, main distribution, and servomotors as actua...

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