CN206848395U - A kind of equipment for monitoring power quality - Google Patents

A kind of equipment for monitoring power quality Download PDF

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Publication number
CN206848395U
CN206848395U CN201720812690.XU CN201720812690U CN206848395U CN 206848395 U CN206848395 U CN 206848395U CN 201720812690 U CN201720812690 U CN 201720812690U CN 206848395 U CN206848395 U CN 206848395U
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China
Prior art keywords
module
input
output
chip
electrically
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CN201720812690.XU
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Inventor
伍智鹏
李天楚
黄仁谋
姚东方
叶细宝
余新
俞友谊
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Nanjing Can Electric Power Automation Ltd By Share Ltd
Electric Power Research Institute of Hainan Power Grid Co Ltd
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Nanjing Can Electric Power Automation Ltd By Share Ltd
Electric Power Research Institute of Hainan Power Grid Co Ltd
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Abstract

The utility model discloses a kind of equipment for monitoring power quality, including process chip, tested module, data transmission module and human-computer interaction module, the process chip is connected by data transmission module with human-computer interaction module signal, the output end of the process chip electrically connects with the input of FFT module, and the output end of FFT module electrically connects with the input of memory module, the memory module is connected with data transmission module.The utility model fully monitors the quality condition of electric energy by detecting multiple modules, and detection and analysis are more accurate, and monitoring effect is more preferable, more accurately, can timely solve quality of power supply produced problem, even if power supply of the cut-out to tested module, improves security performance.

Description

A kind of equipment for monitoring power quality
Technical field
It the utility model is related to Power Quality Monitoring Technology field, more particularly to a kind of equipment for monitoring power quality.
Background technology
With the progress of society, the developing of national economy, plant-scale increasing and the rapid development of science and technology, electric power More and more important role is play in economic life.Meanwhile the contamination phenomenon of power industry also getting worse, such as static change Stream device, industrial ac-dc conversion device, electric arc furnaces, heavy (merchant) mill, electric locomotive etc., the nonlinear load in power system, Impact, wavy load are more and more, cause power network current, voltage waveform to be distorted, and produce substantial amounts of higher hamonic wave, draw The a series of power quality problems such as starting voltage fluctuation, flickering and three-phase imbalance.The quality of the quality of power supply is directly connected to The overall benefit of national economy, traditional electric energy quality monitor just detect to the quality of power supply when needed, real-time compared with Difference, when quality of power supply fluctuation is larger, comprehensive quality information can not be obtained, functions of the equipments are single, general only detection one, two Power index, they are mostly mounted on isolated node, and by device and the limit value of analysis method, and existing electric energy is examined Device detection inaccuracy is surveyed, operating efficiency is low, can only be monitored, and occurring quality problems to electric energy can not timely solve Certainly.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality It is to propose a kind of equipment for monitoring power quality with a new purpose.
According to a kind of equipment for monitoring power quality of the utility model embodiment,
Including process chip, tested module, data transmission module and human-computer interaction module, the process chip passes through data Transport module is connected with human-computer interaction module signal, and the output end of the process chip electrically connects with the input of FFT module, and The output end of FFT module is electrically connected with the input of memory module, and the memory module is connected with data transmission module;
The output end of the human-computer interaction module and the input of change-over switch connect, and the output end of change-over switch and confession The input of power network is electrically connected with, and the output end of the power supply network is connected with tested module, the output end point of the tested module It is not electrically connected with the input of harmonic detecting module and the input of three-phase electricity detection module, the three-phase electricity detection module Output end is connected with the input of Current Voltage sensor, the output end harmonic detection module of the Current Voltage sensor Input of the output end respectively with signal amplification module is connected, output end and the data-signal processing mould of the signal amplification module The input connection of block, the output end of the data-signal processing module are connected with the input of modulation /demodulation module, the tune The output end of demodulation module processed and the input of process chip are electrically connected with, input and the detection of electrical leakage mould of the process chip The output end of block is electrically connected with.
In other embodiments of the present utility model, the data transmission module is that 4G signals transmit or wireless signal passes It is defeated.
In other embodiments of the present utility model, the defeated place end of the process chip passes through wire and alarm module Input connects.
In other embodiments of the present utility model, the data transmission module and process chip and human-computer interaction module Connected for two-way signaling.
In other embodiments of the present utility model, the memory module include flash memory module, temporary storage module and Permanent memory module.
Beneficial effect in the utility model:The utility model carries out processing point by FFT module to detection circuit data Analysis, FFT module operational precision is high, operation blocks, improves operating efficiency and the degree of accuracy, and the data after FFT module processing computing are passed through Memory module is stored, if detecting that quality of power supply shakiness is stored data in permanent memory module and passed by data Defeated module transfer stops the power supply to tested module, reduces electricity to change-over switch, control power supply network on human-computer interaction module, is passed through The loss of energy, while the security performance of electric energy is improved, process chip uses DSP56200 chips, and DSP56200 chips have extensive Integration, stability are good, precision height, programmability, high speed performance, Residuated Lattice, interface and integrated convenience etc., the utility model Detailed detection is carried out to the electric current and voltage of circuit-under-test by three-phase electricity detection module, quilt is detected by harmonic detecting module The current wave of slowdown monitoring circuit, the quality condition of electric energy is fully monitored by detecting multiple modules, detection and analysis are more accurate, monitoring effect Fruit is more preferable, more accurately, can timely solve quality of power supply produced problem, even if power supply of the cut-out to tested module, is carried High safety performance.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.In the accompanying drawings:
Fig. 1 be the utility model proposes circuit module schematic diagram.
In figure:1 process chip, 2FFT modules, 3 memory modules, 4 data transmission modules, 5 human-computer interaction modules, 6 conversions are opened Pass, 7 power supply networks, 8 tested modules, 9 three-phase electricity detection modules, 10 Current Voltage sensors, 11 harmonic detecting modules, 12 signals are put Big module, 13 data-signal processing modules, 14 modulation /demodulation modules, 15 detection of electrical leakage modules.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from beginning to end As element or with same or like function element.The embodiments described below with reference to the accompanying drawings are exemplary, purport For explaining the utility model, and it is not intended that to limitation of the present utility model.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be Mechanically connect or electrically connect;Can be joined directly together, can also be indirectly connected by intermediary, can be two The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
Reference picture 1, a kind of equipment for monitoring power quality,
Including process chip 1, tested module 8, data transmission module 4 and human-computer interaction module 5, the process chip 1 is logical Cross data transmission module 4 to be connected with the signal of human-computer interaction module 5, the output end of the process chip 1 and the input of FFT module 2 End electrical connection, and the output end of FFT module 2 electrically connects with the input of memory module 3, the memory module 3 and data transfer Module 4 connects;
The output end of the human-computer interaction module 5 is connected with the input of change-over switch 6, and the output end of change-over switch 6 It is electrically connected with the input of power supply network 7, the output end of the power supply network 7 is connected with tested module 8, the tested module 8 Output end is electrically connected with the input of harmonic detecting module 11 and the input of three-phase electricity detection module 9 respectively, the three-phase The output end of electro-detection module 9 is connected with the input of Current Voltage sensor 10, the output of the Current Voltage sensor 10 Input of the output end of end harmonic detection module 11 respectively with signal amplification module 12 is connected, the signal amplification module 12 Output end be connected with the input of data-signal processing module 13, the output end of the data-signal processing module 13 and modulation The input connection of demodulation module 14, the output end of the modulation /demodulation module 14 are electrically connected with the input of process chip 1, The input of the process chip 1 is electrically connected with the output end of detection of electrical leakage module 15.
The data transmission module 4 is that 4G signals transmit or transmission of wireless signals, the defeated place end of the process chip 1 pass through The input of wire and alarm module connects, and the data transmission module 4 is two-way with process chip 1 and human-computer interaction module 5 Signal connects, and the memory module 3 includes flash memory module, temporary storage module and permanent memory module.
Embodiment or workflow:The utility model carries out Treatment Analysis by FFT module 2 to detection circuit data, The operational precision of FFT module 2 is high, operation blocks, improves operating efficiency and the degree of accuracy, and FFT module 2 handles the data after computing by depositing Storage module 3 is stored, if detecting quality of power supply shakiness, is stored data in permanent memory module and is passed by data Defeated mould, 4 are transferred on human-computer interaction module 5, and by change-over switch 6, control power supply network 7 stops the power supply to tested module 8, subtracts Few energy loss, while the security performance of electric energy is improved, process chip 1 uses DSP56200 chips, and DSP56200 chips have Large-scale integrated, stability are good, precision height, programmability, high speed performance, Residuated Lattice, interface and integrated convenience etc., this reality Detailed detection is carried out to the electric current and voltage of circuit-under-test by three-phase electricity detection module 9 with new, passes through harmonic detecting mould Block 11 detects the current wave of circuit-under-test, and data are amplified by signal amplification module 12 and preferably handle mould for data-signal Block 13 works, and processing is more convenient, and more accurately, modulation /demodulation module 14 passes to processing core after data are modulated with demodulation Piece 1 is handled, and the quality condition of electric energy is fully monitored by detecting multiple modules, tests and analyzes more accurate, monitoring effect More preferably, more accurately.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper, or only Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be Combined in an appropriate manner in any one or more embodiments or example.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model Within enclosing.

Claims (5)

  1. A kind of 1. equipment for monitoring power quality, it is characterised in that:
    Including process chip, tested module, data transmission module and human-computer interaction module, the process chip passes through data transfer Module is connected with human-computer interaction module signal, and the output end of the process chip electrically connects with the input of FFT module, and FFT The output end of module is electrically connected with the input of memory module, and the memory module is connected with data transmission module;
    The output end of the human-computer interaction module and the input of change-over switch connect, and the output end and power supply network of change-over switch Input be electrically connected with, the output end of the power supply network is connected with tested module, the output end of the tested module respectively with The input of harmonic detecting module and the input of three-phase electricity detection module are electrically connected with, the output of the three-phase electricity detection module End is connected with the input of Current Voltage sensor, the output of the output end harmonic detection module of the Current Voltage sensor The input respectively with signal amplification module is held to be connected, output end and the data-signal processing module of the signal amplification module Input is connected, and the output end of the data-signal processing module is connected with the input of modulation /demodulation module, the modulatedemodulate The output end of mode transfer block and the input of process chip are electrically connected with, input and the detection of electrical leakage module of the process chip Output end is electrically connected with.
  2. A kind of 2. equipment for monitoring power quality according to claim 1, it is characterised in that:The data transmission module is 4G Signal transmits or transmission of wireless signals.
  3. A kind of 3. equipment for monitoring power quality according to claim 1, it is characterised in that:The defeated place end of the process chip Connected by the input of wire and alarm module.
  4. A kind of 4. equipment for monitoring power quality according to claim 1, it is characterised in that:The data transmission module and place Reason chip is that two-way signaling connects with human-computer interaction module.
  5. A kind of 5. equipment for monitoring power quality according to claim 1, it is characterised in that:The memory module includes flash memory Module, temporary storage module and permanent memory module.
CN201720812690.XU 2017-07-06 2017-07-06 A kind of equipment for monitoring power quality Active CN206848395U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720812690.XU CN206848395U (en) 2017-07-06 2017-07-06 A kind of equipment for monitoring power quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720812690.XU CN206848395U (en) 2017-07-06 2017-07-06 A kind of equipment for monitoring power quality

Publications (1)

Publication Number Publication Date
CN206848395U true CN206848395U (en) 2018-01-05

Family

ID=60804373

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720812690.XU Active CN206848395U (en) 2017-07-06 2017-07-06 A kind of equipment for monitoring power quality

Country Status (1)

Country Link
CN (1) CN206848395U (en)

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