Design method, device and terminal equipment of an inertial combination filter
A technology of inertial combination and design method, applied in impedance networks, electrical components, etc., can solve the problems of inaccurate controlled process model and difficult adjustment of high-frequency signal attenuation characteristics, so as to improve high-frequency signal attenuation characteristics and good control characteristics. Effect
Active Publication Date: 2022-04-12
GUANGDONG POWER GRID CO LTD +1
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[0006] The object of the present invention is to provide a design method, device and terminal equipment of an inertial combination filter to solve the problem that the process control of a thermal power unit uses an inertial combination filter to express the controlled process model is not accurate enough, and the existing inertial combination filter Difficult to adjust high-frequency signal attenuation characteristics
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[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0049] It should be understood that the step numbers used herein are only for convenience of description, and are not intended to limit the execution order of the steps.
[0050] It should be understood that the terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an"...
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The invention discloses a design method, device and terminal equipment of an inertial combination filter. The inertial combination filter is used to construct a first-stage superheated steam temperature control system of a thermal power unit. The input process response data is converted into the process output data of the controlled process input at the unit step; and obtain the process output data of the inertial combination filter model input at the unit step; calculate the controlled process of the unit step input Process output data and the integral of the square of the error between the process output data of the unit step input of the inertial combination filter model; adjust the exponential gain coefficient of the inertial combination filter, when the square integral of the error is minimum, Obtain the final inertial combination filter and the final inertial combination filter model. A high-performance proportional-integral controller constructed with an improved inertial combination filter can obtain better control characteristics than PID control.
Description
technical field [0001] The invention relates to the technical field of thermal power unit process control, in particular to a design method, device, terminal equipment and storage medium of an inertial combination filter. Background technique [0002] In the field of thermal power unit process control, a high-performance proportional-integration controller (Highperformance Proportion-Integration) is proposed in the prior art. The essence of the high-performance proportional-integral controller is to use an inertial combination filter to express the controlled process model. From the perspective of simplifying the model of the controlled process, an inertial combination filter is relatively simple. [0003] The existing technology also uses the Z-N rule to obtain the parameters of the controlled process. Some documents refer to the Z-N rule as the Z-N model. The Z-N model is a simplified model of the controlled process, but the accuracy of expressing the controlled process wi...
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IPC IPC(8): H03H1/02
CPCH03H1/02
Inventor 李军
Owner GUANGDONG POWER GRID CO LTD