CN-121979032-A - Handheld intelligent secondary equipment maintenance device and testing method thereof

CN121979032ACN 121979032 ACN121979032 ACN 121979032ACN-121979032-A

Abstract

The application discloses a handheld intelligent secondary equipment maintenance device and a testing method thereof, wherein the device comprises a core control module, a multi-parameter measurement module, a safety interlocking module, a communication module, a man-machine interaction module and a power management module, wherein the core control module is used for coordinately controlling multi-parameter synchronous acquisition and data processing, the safety interlocking module is used for constructing a real-time protection channel to realize safety logic judgment and risk early warning, the communication module is used for carrying out bidirectional transmission of test data and control instructions, the multi-parameter measurement module is used for acquiring electrical parameters of secondary equipment, the power management module is used for providing a direct-current working power supply and carrying out power state monitoring, and the man-machine interaction module is used for executing test parameter configuration, operation instruction input and test result display. The application realizes the intellectualization, integration and safety of the electric power secondary equipment maintenance through the cooperative work of the modules.

Inventors

YANG HAI
LI QIULIANG
HOU XIAOHU
HUANG FUQIANG
XIAO JIANGTAO
TIAN PENGYUN
ZHOU GUOJUN
WANG DAN
Liao Zhengyang
ZHANG DIYA

Assignees

三峡金沙江川云水电开发有限公司

Dates

Publication Date: 20260505
Application Date: 20260106

Claims (10)

1. A handheld intelligent secondary equipment maintenance device is characterized by comprising a core control module, a multi-parameter measurement module, a safety interlocking module, a communication module, a man-machine interaction module and a power management module, The core control module is connected with the multi-parameter measurement module, and is used for cooperatively controlling multi-parameter synchronous acquisition and data processing, and the multi-parameter measurement module is used for acquiring the electrical parameters of the secondary equipment; The core control module is connected with the safety interlocking module, and the safety interlocking module is used for constructing a real-time protection channel to realize safety logic judgment and risk early warning; the core control module is connected with the communication module, and the communication module is used for carrying out bidirectional transmission of test data and control instructions; the man-machine interaction module is connected with the core control module and is used for executing test parameter configuration, operation instruction input and test result display; the power management module is respectively and electrically connected with the core control module, the multi-parameter measurement module, the safety interlocking module, the communication module and the man-machine interaction module, and is used for providing a direct current working power supply and monitoring the power state.
2. The handheld intelligent secondary equipment maintenance device of claim 1, wherein the multi-parameter measurement module comprises an alternating current voltage measurement unit, a direct current voltage measurement unit, an alternating current measurement unit, an insulation resistance measurement unit and a signal conditioning circuit, The alternating voltage measuring unit, the direct voltage measuring unit, the alternating current measuring unit and the insulation resistance measuring unit are respectively connected with the signal conditioning circuit.
3. The handheld intelligent secondary equipment servicing apparatus of claim 1, wherein the safety interlock module comprises an over-current protection circuit, an over-voltage protection circuit, and a drive dead zone protection circuit, The output signals of the overcurrent protection circuit, the overvoltage protection circuit and the driving dead zone protection circuit are summarized to the safety interlocking module, and the safety interlocking module performs logic judgment and then forms closed-loop control with the core control module.
4. The handheld intelligent secondary equipment servicing device of claim 3, wherein the over-current protection circuit comprises a current sensor, an RC filter circuit, and a comparator, The current sensor is connected in series to the output loop of the overhauling device, the signal output end of the current sensor is connected with the safety interlocking module through the RC filter circuit, and after the detection signal of the current sensor is compared with the reference voltage through the comparator, the trigger signal is output to the safety interlocking module.
5. The device for servicing a handheld intelligent secondary service apparatus of claim 3, wherein the overvoltage protection circuit comprises a TVS diode, a varistor, a voltage sampling point and a voltage dividing resistor, The TVS diode and the piezoresistor are connected in parallel between the power input end of the overhauling device and the ground, the voltage sampling point is connected into an overvoltage protection circuit of the safety interlocking module through a voltage dividing resistor, and when the voltage detected by the overvoltage protection circuit exceeds a threshold value, the relay is triggered to cut off a main loop and an overvoltage signal is sent to the core control module.
6. The device for overhauling the handheld intelligent secondary equipment according to claim 3, wherein the safety interlocking module further comprises a power driving unit, a control unit and a control unit, wherein the power driving unit comprises a grid driving circuit and a hardware delay circuit, the driving dead zone protection circuit is integrated in the grid driving circuit of the power driving unit, and the driving dead zone protection circuit is connected with the hardware delay circuit; The driving dead zone protection circuit receives an input signal from the safety interlocking module, dead zone time control of the driving signal is realized through the hardware delay circuit, meanwhile, a driving state feedback signal is transmitted back to the safety interlocking module in real time, and the dead zone time can be programmed and set through the core control module.
7. The handheld intelligent secondary equipment maintenance device of claim 1, wherein the core control module is internally provided with a microcontroller, the multi-parameter measurement module is internally provided with a processing chip, and the communication module is internally provided with a dual-mode communication unit for supporting wired and wireless dual-mode communication.
8. The handheld intelligent secondary equipment maintenance device of claim 1, wherein the man-machine interaction module comprises a touch screen and physical operation keys, and the man-machine interaction module is used for intuitively realizing man-machine interaction shortcut operation.
9. A method of testing a handheld intelligent secondary equipment service device according to any one of claims 1 to 8, the method comprising the steps of: S1, generating an RFID tag of secondary equipment to be detected, reading the RFID tag of the secondary equipment to be detected, acquiring equipment model information, calling a pre-trained test model to analyze a corresponding standardized operation instruction book, and automatically generating a test item sequence by a core control module; s2, configuring sampling parameters of a multi-parameter measurement module through a core control module according to a test item sequence, wherein the sampling parameters comprise sampling rate, signal amplification factor and channel switching logic, and realizing time synchronization of the modules through a communication protocol; S3, carrying out time-sharing acquisition on the voltage, current, phase and resistance parameters, generating a measured value, storing the measured value into a memory, and transmitting the measured value to a core control module by the memory; S4, comparing the measured value with a preset threshold value, and generating a judgment conclusion; And S5, generating a test report according to the judgment result.
10. The test method according to claim 9, wherein the judging of the conclusion in the step S4 includes passing, failing and paying attention, Wherein the qualification criterion is that the measured value is within + -5% of the standard threshold, the disqualification criterion is that the measured value exceeds + -20% of the standard threshold, and the noted criterion is that the measured value is between + -5% and + -20% of the standard threshold.

Description

Handheld intelligent secondary equipment maintenance device and testing method thereof Technical Field The application belongs to the technical field of overhaul of secondary equipment of a power system, and particularly relates to a handheld intelligent overhaul device of secondary equipment and a testing method thereof. Background The current electric power secondary equipment maintenance still takes a manual leading mode as a main mode, and the problems of low operation efficiency, prominent safety risk, weak data management, insufficient standardization and the like exist. Taking PT/CT secondary circuit test as an example, the traditional single-function instrument needs to be frequently replaced, the test flow depends on manual recording and step arrangement, the time consumption of single operation is 3-5 times higher than the advanced level of the industry, the efficiency loss is more than 60% due to redundancy of manual intervention links, short circuit and electric shock accidents caused by human errors such as miswire connection and electrified operation account for 12% of non-stop events of a power plant, the traditional equipment lacks a dynamic safety interlocking mechanism and cannot block dangerous operation in real time, test data depends on manual entry into an offline database, report arrangement is time consuming and error prone, a 'data island' is formed, equipment state evaluation and decision optimization are difficult to support, meanwhile, analysis of an operation instruction and test sequence generation depend on manual operation, and poor flow normalization results in low result consistency. The prior art scheme realizes intellectualization in part of the field, but has obvious limitation. The scheme of enterprises such as GE, siemens and the like, such as Hitachi energy portable calibrator, only supports automatic parameter collection, test sequences still need to be manually arranged, OMICRON CMC tester operation complexity is high, the requirements of on-site quick overhaul are not met, safety interlocking logic cannot dynamically match test scenes based on preset rules, active protection capability is insufficient, and the scheme such as digital twinning and industrial Internet platform is high in cost and difficult to adapt to the personalized requirements of domestic power plants. In the domestic aspect, although the Huanen iDAP platform realizes part flow digitalization, the analysis of the operation instruction book depends on manual labeling, the CT/PT checking device of the Chinese electric department lacks an AI-based self-adaptive test sequence generation function, the safety interlocking mechanism does not realize dynamic matching, meanwhile, the equipment integration level is low, a multi-device joint debugging mode is adopted, and portability and multifunctionality are difficult to be compatible. In summary, the prior art has obvious short plates in terms of flow automation, safety protection dynamization, intelligent integration and suitability of secondary equipment overhaul, cannot meet the field efficient, safe and accurate overhaul requirements, and needs to develop a portable overhaul device integrating multi-parameter synchronous measurement, intelligent flow arrangement, dynamic safety interlocking and data closed-loop management. Disclosure of Invention The application aims at: in order to overcome the problems in the prior art, a handheld intelligent secondary equipment maintenance device and a testing method thereof are disclosed, the intelligent, integrated and safe electric power secondary equipment maintenance is realized through the cooperative work of the core control module, the multi-parameter measurement module, the safety interlocking module, the communication module and the man-machine interaction module. On the one hand, the aim of the application is achieved by the following technical scheme: The handheld intelligent secondary equipment maintenance device comprises a core control module, a multi-parameter measurement module, a safety interlocking module, a communication module, a man-machine interaction module and a power management module; The core control module is connected with the multi-parameter measurement module, and is used for cooperatively controlling multi-parameter synchronous acquisition and data processing, and the multi-parameter measurement module is used for acquiring the electrical parameters of the secondary equipment; The core control module is connected with the safety interlocking module, and the safety interlocking module is used for constructing a real-time protection channel to realize safety logic judgment and risk early warning; the core control module is connected with the communication module, and the communication module is used for carrying out bidirectional transmission of test data and control instructions; the man-machine interaction module is connected with the core control module and is used for executing te