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On-line Judgment Method and Device of Noise Interference Level of Advance Observer

An advanced observer and noise interference technology, applied in transmission monitoring, electrical components, transmission systems, etc., can solve the problems of low efficiency, high difficulty and high measurement cost, and achieve the effect of improving overall work efficiency and reducing measurement difficulty and cost.

Active Publication Date: 2022-05-27
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for online judgment of the noise interference level of a high-performance advanced observer. High, difficult and inefficient problems

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  • On-line Judgment Method and Device of Noise Interference Level of Advance Observer

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Embodiment Construction

[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] It should be understood that the step numbers used in the text are only for the convenience of description, and are not intended to limit the order in which the steps are performed.

[0057] It should be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in this specification and the appended clai...

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Abstract

The invention discloses an online judgment method and device for the noise interference level of a high-performance advanced observer. The method includes building a second high-performance advanced observer parallel to the high-performance advanced observer to be measured; the high-performance advanced observer to be measured The detector is used for the advanced observation of the main steam pressure process response of the thermal power unit; the noise interference signal source is input to the second high-performance advanced observer, and the comparator operation, gain compensation and first-order inertial filter filtering are performed in sequence to obtain the second high-performance The output signal of the advanced observer; calculate the noise power gain of the second high-performance advanced observer according to the output signal of the second high-performance advanced observer and the noise interference signal source; according to the noise power gain and the preset threshold of the second high-performance advanced observer The relationship between the size of , and judge the noise interference level of the high-performance look-ahead observer to be tested. The invention realizes the online judgment of the noise interference level, reduces the measurement difficulty and cost, and improves the overall work efficiency of the advance observation.

Description

technical field [0001] The invention relates to the technical field of thermal power unit process control, in particular to an online judgment method and device for the noise interference level of a high-performance advanced observer. Background technique [0002] In the field of thermal power unit process control, the use of advance observation can obtain advance information of process response, which plays a key role in improving process control performance. Among them, the advanced observation includes various forms, such as differentiator, second-order inertia inverse model, proportional-derivative controller and so on. In order to improve the feedback control performance of these models, a new type of basic controller (NFC for short) is proposed in the prior art based on the existing advance observation technology. [0003] Among them, NFC is a cascade structure of a high-performance controller (referred to as HPPI) and a high-performance look-ahead observer (referred ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/345
CPCH04B17/345
Inventor 李军陈锦攀
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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