CN-122020316-A - Facility running state detection system for water conservancy construction

CN122020316ACN 122020316 ACN122020316 ACN 122020316ACN-122020316-A

Abstract

The invention discloses a facility running state detection system for water conservancy construction, which relates to the technical field of water conservancy facility detection and comprises an acquisition module, a construction module and a construction module, wherein the acquisition module is used for acquiring running parameter sequences of gates in real time in the cooperative opening and closing construction process of a plurality of groups of flood discharge gates in a water conservancy junction, the running parameter sequences comprise motor current, opening and closing force and running speed of each gate in the same period, the construction module is used for constructing a group fluctuation reference curve under the current hydraulic conduction working condition according to waveform similarity among the running parameter sequences of each gate and extracting single real-time running characteristics of each gate relative to the historical working condition of the gates according to the running parameter sequences of each gate.

Inventors

LIU QIMING
WANG YONG
ZHAO JIANTAO
GAO XIMEI
SONG DANDAN

Assignees

河南惠金工程检测咨询有限公司

Dates

Publication Date: 20260512
Application Date: 20260225

Claims (10)

1. A facility running state detection system for water conservancy construction is characterized in that, The system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the operation parameter sequence of each gate in real time in the cooperative opening and closing construction process of a plurality of groups of flood discharge gates in a water conservancy junction, wherein the operation parameter sequence comprises motor current, opening and closing force and operation speed of each gate in the same period; The construction module is used for constructing a group fluctuation reference curve under the current hydraulic conduction working condition according to the waveform similarity among the operation parameter sequences of the gates, and extracting the single real-time operation characteristics of the gates relative to the historical working conditions of the gates according to the operation parameter sequences of the gates; the calculation module is used for calculating the dynamic residual error of each gate operation parameter deviating from the group fluctuation reference curve according to the group fluctuation reference curve and the single real-time operation characteristic; The stripping module is used for reversely stripping fault characteristic components caused by single machine faults from the group fluctuation reference curve according to the dynamic residual error, the fluctuation amplitude of the group fluctuation reference curve and the change rate of the single real-time operation characteristics; And the judging module is used for judging that the corresponding gate breaks down and generating alarm information when the fault characteristic component exceeds a preset fault judging threshold value.
2. The system for detecting the operation state of a facility for water conservancy construction according to claim 1, wherein the stripping module reversely strips out the fault characteristic component caused by the single machine fault from the group fluctuation reference curve, and comprises the following components: According to the dynamic residual error, identifying the initial deviation amount of each gate operation parameter from the group fluctuation reference curve; Determining the following deviation allowable range of each gate under the current hydraulic transmission working condition according to the fluctuation amplitude of the group fluctuation reference curve; Determining the mutation degree of the real-time operation characteristics of the monomer relative to the historical working conditions of the monomer according to the change rate of the real-time operation characteristics of the monomer; And comparing the initial deviation amount with the following deviation allowable range, carrying out correlation analysis on a comparison result and the mutation degree, removing components belonging to the following deviation from the initial deviation amount, and retaining fault characteristic components caused by single machine faults.
3. The system according to claim 2, wherein the following deviation allowable range is calculated from a waveform peak value, a waveform slope and a fluctuation period of the group fluctuation reference curve; the following deviation allowable range is correspondingly enlarged when the fluctuation amplitude of the population fluctuation reference curve increases.
4. A facility operating state detection system for water conservancy construction according to claim 2 and wherein said correlation analysis comprises: When the initial deviation exceeds the following deviation allowable range and the mutation degree exceeds a preset mutation threshold, judging that the exceeding part of the initial deviation is a fault characteristic component caused by single machine fault; when the initial deviation amount exceeds the following deviation allowable range but the mutation degree does not exceed a preset mutation threshold value, judging that the exceeding part in the initial deviation amount still belongs to the following deviation; And when the initial deviation amount does not exceed the following deviation allowable range but the mutation degree exceeds a preset mutation threshold value, reevaluating all or part of the initial deviation amount and determining whether the initial deviation amount is a fault characteristic component.
5. The system for detecting the operation state of a facility for water conservancy construction according to claim 2, wherein the fault characteristic component is obtained after a plurality of reverse stripping; in each reverse stripping, the group fluctuation reference curve is corrected according to the fault characteristic component stripped at present, and dynamic residual errors are recalculated based on the corrected group fluctuation reference curve until the difference value of the fault characteristic component stripped before and after twice is smaller than a preset stability threshold value.
6. The system for detecting the operation state of a facility for water conservancy construction according to claim 1, wherein the construction module is further configured to perform time alignment correction on the group fluctuation reference curve according to a phase difference between operation parameter sequences of each gate; and the time alignment correction is to translate the operation parameter sequences of the gates on a time axis, and reconstruct the group fluctuation reference curve after the waveform similarity among the sequences reaches the maximum value.
7. The system for detecting the running state of a facility for water conservancy construction according to claim 1, wherein the stripping module is further configured to strip the dynamic residual error in a successive reverse direction when a plurality of fault characteristic components superimposed on each other exist in the dynamic residual error; In each stripping, identifying and stripping out the fault characteristic component with the largest amplitude in the current residual error, updating the group fluctuation reference curve by using the stripped residual error, and repeating the process until no component exceeding the preset residual error threshold value exists in the residual error.
8. A facility operating condition detection system for water conservancy construction according to claim 7 and wherein said successive reverse stripping comprises: Performing spectrum analysis on the dynamic residual error, and identifying a plurality of frequency components contained in the dynamic residual error; determining stripping sequence according to the amplitude of each frequency component; sequentially stripping fault characteristic components corresponding to each frequency component from the dynamic residual error according to the stripping sequence; and comparing the stripped multiple fault characteristic components with a fault mode characteristic library respectively, and determining fault types and fault positions corresponding to the fault characteristic components.
9. A facility operating state detection system for water conservancy construction according to claim 1, further comprising: And the correction module is used for carrying out reverse correction on the group fluctuation reference curve according to the fault characteristic component to obtain a pure hydraulic transmission curve after fault interference is removed, and taking the pure hydraulic transmission curve as an initial reference for constructing the group fluctuation reference curve in a subsequent construction period.
10. A facility operating state detection system for water conservancy construction according to claim 1, further comprising: The identification module is used for identifying the current hydraulic conduction working condition type according to the waveform characteristics of the group fluctuation reference curve, wherein the working condition type comprises one or more of a stable flow state, a rapid flow state and a surge impact; the adaptation module is used for calling a corresponding stripping parameter set from a pre-stored working condition parameter library according to the identified working condition type, wherein the stripping parameter set comprises one or more of a calculation coefficient of the following deviation allowable range, a numerical value of the abrupt change threshold value and a step length of the reverse stripping; The stripping module performs the reverse stripping using the set of stripping parameters.

Description

Facility running state detection system for water conservancy construction Technical Field The invention belongs to the technical field of water conservancy facility detection, and particularly relates to a facility running state detection system for water conservancy construction. Background The cooperative opening and closing of the flood discharge gate in the water conservancy junction is a core link of water conservancy construction, and the running state directly relates to construction safety and normal scheduling of water conservancy engineering. The current gate running state detection is based on independent parameter monitoring of a single gate, whether a fault exists or not is judged by setting a fixed threshold value, and the relevance of hydraulic conduction working conditions when the gates work cooperatively is not fully considered. In an actual construction scene, the cooperative opening and closing of a plurality of groups of gates can be influenced by the same hydraulic environment, and each gate operation parameter can show group association fluctuation, and the fluctuation belongs to common response under normal working conditions and is not caused by single fault. In the prior art, the group commonality fluctuation and the monomer fault characteristics are not distinguished, the normal group fluctuation is easily misjudged as a fault only according to a single parameter threshold value, and meanwhile, the real monomer mechanical fault signal is difficult to accurately identify from the complex fluctuation. In addition, the existing scheme lacks the longitudinal comparison of the historical working conditions of the gate, and the running state change trend of the single gate cannot be accurately captured, so that the sensitivity and the accuracy of fault detection are insufficient. Disclosure of Invention The invention aims to provide a facility running state detection system for water conservancy construction, which solves the problems in the background art. A facility operational status detection system for water conservancy construction, comprising: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the operation parameter sequence of each gate in real time in the cooperative opening and closing construction process of a plurality of groups of flood discharge gates in a water conservancy junction, wherein the operation parameter sequence comprises motor current, opening and closing force and operation speed of each gate in the same period; The construction module is used for constructing a group fluctuation reference curve under the current hydraulic conduction working condition according to the waveform similarity among the operation parameter sequences of the gates, and extracting the single real-time operation characteristics of the gates relative to the historical working conditions of the gates according to the operation parameter sequences of the gates; the calculation module is used for calculating the dynamic residual error of each gate operation parameter deviating from the group fluctuation reference curve according to the group fluctuation reference curve and the single real-time operation characteristic; The stripping module is used for reversely stripping fault characteristic components caused by single machine faults from the group fluctuation reference curve according to the dynamic residual error, the fluctuation amplitude of the group fluctuation reference curve and the change rate of the single real-time operation characteristics; And the judging module is used for judging that the corresponding gate breaks down and generating alarm information when the fault characteristic component exceeds a preset fault judging threshold value. In some possible embodiments, the stripping module strips out the fault signature component caused by the single machine fault back from the population fluctuation reference curve, comprising: According to the dynamic residual error, identifying the initial deviation amount of each gate operation parameter from the group fluctuation reference curve; Determining the following deviation allowable range of each gate under the current hydraulic transmission working condition according to the fluctuation amplitude of the group fluctuation reference curve; Determining the mutation degree of the real-time operation characteristics of the monomer relative to the historical working conditions of the monomer according to the change rate of the real-time operation characteristics of the monomer; And comparing the initial deviation amount with the following deviation allowable range, carrying out correlation analysis on a comparison result and the mutation degree, removing components belonging to the following deviation from the initial deviation amount, and retaining fault characteristic components caused by single machine faults. In some possible embodiments, the fol