Method and system for testing control parameters of servo system of gas turbine speed regulator

A servo system and gas turbine technology, applied in electrical testing/monitoring, etc., can solve problems such as uneven product functions and performance, inability to understand control performance, and inability to understand internal control parameters and control performance.

Inactive Publication Date: 2014-11-05
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology

At present, most of the gas turbine generator set governor control equipment is imported from abroad. For the protection of intellectual property rights or to prevent random changes in control parameters, the governor servo system equipment is often packaged, and the output signal of the servo system cannot be tested or changed, let

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  • Method and system for testing control parameters of servo system of gas turbine speed regulator
  • Method and system for testing control parameters of servo system of gas turbine speed regulator
  • Method and system for testing control parameters of servo system of gas turbine speed regulator

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Embodiment Construction

[0029] figure 1 Shows the working principle of normal fuel valve command to control gas turbine fuel valve through servo system.

[0030] figure 2 It shows the gas turbine governor servo system control parameter testing method of the present invention and the working principle of the system, which also includes servo system equipment (software modules or clips), EH oil pump and oil motor, displacement sensor (LVDT), but distributed through the power plant The logic control configuration of the control system (such as the German Siemens DCS control system) adds a test function module to the input link of the servo system, and adds a data acquisition module connected in parallel with the fuel valve stroke displacement sensor (the test of the fuel valve stroke displacement sensor signal is in parallel mode , does not affect the original control system loop), the test function module and the servo system are connected and controlled by the test switch; the test function module i...

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Abstract

The invention discloses a method and system for testing the control parameters of a servo system of a gas turbine speed regulator. According to the method, a test function module and a data collection module are additionally arranged on a servo system input element in control logic to test displacement sensor signals indicating the displacement of a fuel valve, wherein testing is carried out in a parallel connection mode and does not influence an original control system loop. By testing switching between the test function module and a test switch and carrying out testing and data analysis on the displacement signals of the fuel valve, the accurate control parameters of the servo system of the gas turbine speed regulator can be obtained, and the accuracy of simulation model parameters of the gas turbine speed regulator and the reliability of model verification can be improved. By means of the method and system, testing of the control parameters of the servo system of the gas turbine speed regulator can be comprehensively and quickly completed, networking detection, leave-factory check and acceptance detection and daily maintenance detection of the servo system of the gas turbine speed regulator can be achieved, the servo system of the gas turbine speed regulator can operate safely, reliably and stably in a power grid, and the demand for stable calculation and analysis of the power grid can be met.

Description

technical field [0001] The invention belongs to the field of power grid stability simulation modeling analysis, relates to a gas turbine speed governor modeling test technology, in particular to a gas turbine speed governor servo system control parameter testing method and a system thereof. Background technique [0002] The gas turbine generating set is the unit with the fastest response to the frequency regulation of the power grid, and plays an important role in maintaining the stability of the power grid. When the grid frequency changes, the generator set immediately reverses the power adjustment through the gas turbine governor to achieve the purpose of stabilizing the grid frequency. The simulation calculation of power grid stability requires an accurate gas turbine governor simulation model, and its model and parameters must be tested, identified and verified through experiments. At present, most of the gas turbine generator set governor control equipment is imported ...

Claims

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Application Information

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IPC IPC(8): G05B23/02
Inventor 文立斌李俊雷亭卢万里窦骞廖卫国孙志媛
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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