CN205333755U - A device for electric energy quality monitoring - Google Patents
A device for electric energy quality monitoring Download PDFInfo
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- CN205333755U CN205333755U CN201521107288.9U CN201521107288U CN205333755U CN 205333755 U CN205333755 U CN 205333755U CN 201521107288 U CN201521107288 U CN 201521107288U CN 205333755 U CN205333755 U CN 205333755U
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Abstract
The application discloses a device for electric energy quality monitoring is including power module, a central processing unit, voltage acquisition module, electric current collection module, DSP module, net gape communication module, a RS485 communication module, the 2nd RS485 communication module, LCD demonstration and touch screen module, control output module, switching value collection module, a central processing unit 0 and clock module. The the device function is complete, including harmonic analysis between, harmonic analysis, waveform sampling rise suddenly with voltage / the transient state seizure of rapid drawdown record, flickering monitoring, fluction analysis, the measurement of voltage unbalance degree, wave form, incident record, survey control, the communication of double - circuit RS485, net gape communication etc.. And the device adopts hi -lite formula LCD man -machine interface display screen in a poor light, and extra button is not had in full touch screen operation, shows directly perceived, convenient operation.
Description
Technical field
This utility model relates to electronic device field, specifically, relates to a kind of device for electric energy quality monitoring。
Background technology
Along with China's power industry is flourish, electric load sharp increase, the electric power system quality of power supply also in continuous growth, is caused serious pollution by nonlinear-load (such as electric arc furnace etc.) and impact load；On the other hand, along with microelectric technique develops rapidly, power supply quality is had higher requirement by modern increasingly automated and intelligentized industrial power supply equipment。For this, each producer is all proposed all kinds of equipment for monitoring power quality, but, these common electric energy quality monitorings are designed with the standard of electric measuring instrument often, there is precision problem not high enough, Insufficient, precision often only 0.2 grade even lower, it is single incomplete that function also tends to comparison, for instance has frequency analysis function but do not have m-Acetyl chlorophosphonazo analytic function or cannot be carried out flickering monitoring etc.。
Utility model content
Technical problem to be solved in the utility model is to provide a kind of device for electric energy quality monitoring, has precision height, an advantage that function is complete, functionally covers the most of function needed for power quality analysis, practical。
For solving above-mentioned technical problem, this utility model provides a kind of device for electric energy quality monitoring, it is characterized in that, including power module, CPU, voltage acquisition module, current acquisition module, DSP module, network interface communication module, a RS485 communication module, the 2nd RS485 communication module, LCD shows and touch screen module, control output module, switching value acquisition module, memory module and clock module
Described voltage acquisition module and current acquisition module are connected respectively to described DSP module, be used for gathering and nursing one's health voltage signal or current signal, and the voltage signal after conditioning and current signal are sent to DSP module；
Described DSP module is connected to described CPU, for receiving voltage signal and the current signal of described voltage acquisition module and the transmission of described current acquisition module, carries out data calculating, and sends result of calculation to described central processing unit for processing；
Described network interface communication module is connected to described CPU, for receiving and process the information frame transmitted from network interface, and the information frame after processing is sent to CPU, and for receiving and process the information frame that described CPU transmits, and the information frame after processing is sent from network interface；
A described RS485 communication module and described 2nd RS485 communication module are connected respectively to described CPU, transmit, from RS485 interface, the information frame of coming for receiving and processing, information frame after processing is sent to CPU, and transmit, from described CPU, the information frame of coming for receiving and processing, and the information frame after processing is sent from RS485 interface；
Described LCD shows and touch screen module, described control output module, described switching value acquisition module, described memory module and described clock module are connected respectively to described CPU；
Described power module is connected to other module except self, provides working power for each module。
Preferably, wherein:
Described LCD shows and touch screen module is connected to described CPU, for receiving the real time information sent from CPU, the information of reception is shown on LCD display in real time, and the information position transmission for being touched by touch screen processes to CPU。
Preferably, wherein:
Described control output module is connected to described CPU, and for receiving the control information from CPU, and the instruction sent according to CPU carries out the operation of relay and separating brake。
Preferably, wherein:
Described switching value acquisition module is connected to described CPU, for gathering the switching value information of outside, and provides after the switching value information of collection is carried out level conversion to CPU and processes。
Preferably, wherein:
Described memory module is connected to described CPU, for receiving the write command from described CPU, the data that described CPU sends is stored；And for receiving the reading instruction from described CPU, will be stored in data therein and be sent to described CPU。
Preferably, wherein:
Described clock module is connected to described CPU, for sending real time clock information to described CPU, provides real-time clock for CPU；And for receive from described CPU pair time information, according to described CPU send pair time information carry out time information renovation。
Preferably, wherein:
Described network interface communication module adopts MODBUS-TCP agreement to carry out network interface Communication processing。
Preferably, wherein:
A described RS485 communication module and described 2nd RS485 communication module adopt MODBUS-RTU agreement to carry out serial communication process。
Compared with prior art, the device for electric energy quality monitoring described in the utility model, reach following effect:
1) apparatus function for electric energy quality monitoring provided herein is complete, including frequency analysis, m-Acetyl chlorophosphonazo analysis, waveform sampling and voltage swells/rapid drawdown record, flickering monitoring, fluction analysis, voltage unbalance factor measurement, the transient state seizure of waveform, logout, measurement control, two-way RS485 communication, network interface communication etc.。
2) device for electric energy quality monitoring provided herein adopts 32 CPU and the DSP being to be core, and the sampling of every cycle may be up to 1024 points, and every half cycle (10ms) of sampled data is refreshed once。Voltage, current measurement precision can reach 0.1 grade, and harmonic measure precision reaches A level, and certainty of measurement is high。
3) device for electric energy quality monitoring provided herein adopts high brightness backlights formula LCD man machine interface display screen, full contact action, without extra key, intuitive display, easy to operate。
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes a part of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model。In the accompanying drawings:
Fig. 1 is the device schematic diagram for electric energy quality monitoring of the application。
Detailed description of the invention
As employed some vocabulary in the middle of description and claim to censure specific components。Those skilled in the art are it is to be appreciated that hardware manufacturer may call same assembly with different nouns。This specification and claims are not used as distinguishing in the way of assembly by the difference of title, but are used as the criterion distinguished with assembly difference functionally。" comprising " as mentioned in the middle of description and claim in the whole text is an open language, therefore should be construed to " comprise but be not limited to "。" substantially " referring in receivable range of error, those skilled in the art can solve described technical problem within the scope of certain error, basically reaches described technique effect。Additionally, " coupling " word comprises any directly and indirectly electric property coupling means at this。Therefore, if a first device described in literary composition is coupled to one second device, then represents described first device and can directly be electrically coupled to described second device, or be indirectly electrically coupled to described second device by other devices or the means that couple。Description subsequent descriptions is for implementing better embodiment of the present utility model, and right described description is to illustrate for the purpose of rule of the present utility model, is not limited to scope of the present utility model。Protection domain of the present utility model is when being as the criterion depending on the defined person of claims。
Below in conjunction with accompanying drawing, this utility model is described in further detail, but not as to restriction of the present utility model。
Fig. 1 is a this utility model embodiment for the device of electric energy quality monitoring, in this embodiment, include power module 10, CPU 11, voltage acquisition module 12, current acquisition module 13, DSP module 22, network interface communication module the 14, the oneth RS485 communication module the 15, the 2nd RS485 communication module 16 for the device of electric energy quality monitoring, LCD shows and touch screen module 17, control output module 18, switching value acquisition module 19, memory module 20 and clock module 21。
In figure, voltage acquisition module 12 is connected to DSP module 22, and the conditioning of the collection and voltage signal of being responsible for voltage analog processes, and is sent to DSP module 22, is collected for DSP, calculates and analyzes after conditioned for the voltage signal collected。
Current acquisition module 13 is connected to described DSP module 22, and collection and the current signal conditioning of being responsible for electric current process, and be sent to DSP module 22, be collected for DSP, calculate and analyze after conditioned for the current signal collected。
DSP module 22 is connected to described CPU 11, it is responsible for large-scale data to calculate, for receiving described voltage acquisition module 12 and the measurement data of described current acquisition module 13 transmission, carry out data calculating, and result of calculation transmission is further analyzed process to described CPU 11。
Network interface communication module 14 is connected to described CPU 11, MODBUS-TCP agreement is adopted to carry out network interface Communication processing, on the one hand, network interface communication module 14 is for receiving the information frame transmitted from network interface, information frame after processing is sent to CPU 11 after processing by demodulated, removal packet header etc.；On the other hand, network interface communication module 14, in receiving the information frame transmitted from CPU 11, is modulated, adds after packet header etc. processes, sent from network interface by the information frame after processing。
Oneth RS485 communication module 15 is connected to described CPU 11, MODBUS-RTU agreement is adopted to carry out serial communication process, on the one hand, the information frame that a RS485 communication module 15 transmits from a RS485 interface, after level conversion, information frame is sent to CPU 11；On the other hand, a RS485 communication module 15 receives the information frame transmitted from CPU 11, after level conversion, is sent by a RS485 interface by information frame。
2nd RS485 communication module 16 is connected to described CPU 11, MODBUS-RTU agreement is adopted to carry out serial communication process, on the one hand, the information frame that the 2nd RS485 communication module 16 transmits from the 2nd RS485 interface, after level conversion, information frame is sent to CPU 11；On the other hand, the 2nd RS485 communication module 16 receives the information frame transmitted from CPU 11, after level conversion, is sent by the 2nd RS485 interface by information frame。
LCD shows and touch screen module 17 is connected to CPU 11, is responsible for the process of man machine interface, can carry out LCD and show and touch screen operation。On the one hand, LCD shows and touch screen module 17 receives from information such as the real-time measuring data of CPU 11 transmission, systematic parameter, display figures, and is shown on LCD display by real-time for the information of reception；On the other hand, the information position that LCD shows and touch screen module 17 touch screen touches is sent to CPU 11, is analyzed for CPU 11。
Control output module 18 and be connected to CPU 11, be responsible for external relay output control function。Control output module 18 and receive the control information from CPU 11, carry out the operation of relay on/off switch according to the instruction of CPU 11。
Switching value acquisition module 19 is connected to CPU 11, is responsible for the acquisition function of switching value。Switching value acquisition module 19 gathers the switching value information of outside, after the switching value of collection is carried out level conversion, it is provided that carries out debounce, analysis etc. to CPU 11 and processes。
Memory module 20 is high-capacity storage module 20, is connected to described CPU 11, is responsible for the storage of systematic parameter, statistical data, SOE record, recorded wave file, system file etc.。On the one hand, high-capacity storage module 20 receives the write command from CPU 11, the data that CPU 11 sends is stored in high-capacity storage module 20；On the other hand, high-capacity storage module 20 receives the reading instruction from CPU 11, will be stored in the data in high-capacity storage module 20 and is sent to CPU 11。
Clock module 21 is connected to described CPU 11, is responsible for real-time clock function, carries battery circuit, sustainable timing for many years。On the one hand, real time clock information is sent to CPU 11 by clock module 21, provides the function of real-time clock for CPU 11；On the other hand, clock module 21 receive from CPU 11 pair time information, by receive from the time information renovation of CPU 11 to clock module 21 in。
Power module 10 is connected to other module except self, provides working power for each module, makes each module can normal operation。
The above-mentioned device for electric energy quality monitoring, voltage, current acquisition module are sampled with the sample frequency of up to 1024, each cycle, and the sample frequency of up to 1024 points/cycle is the basis of high-acruracy survey。Special DSP module is very fast due to arithmetic speed, it is possible to the data with high-speed sampling frequency collection are carried out real-time Fourier analysis, completes the measurement of frequency analysis, m-Acetyl chlorophosphonazo analysis, basic analog quantity。DSP module is responsible for large-scale data and is calculated, CPU is then responsible for overall pool, the result that DSP calculates is further analyzed process, judges, complete the functions such as waveform sampling and voltage swells/rapid drawdown record, flickering monitoring, fluction analysis, and carry out logout, the communication etc. be correlated with。
During device busy for electric energy quality monitoring provided herein, voltage acquisition module 12, current acquisition module 13 carry out the Real-time Collection of voltage signal, current signal with the sample frequency of 1024, every cycle。Voltage, current signal that collection is come by DSP module 22 carry out Fourier analysis, due to DSP module 22, to calculate speed very fast, the data of high speed acquisition can be processed in real time, complete the functions such as frequency analysis, m-Acetyl chlorophosphonazo analysis, basic analog measurement, and result of calculation passes to CPU 11 the most at last。The result of DSP module 22 is further analyzed by CPU 11, complete the functions such as waveform sampling and voltage swells/rapid drawdown record, flickering monitoring, fluction analysis, voltage unbalance factor measurement, and be analyzed processing by the signal of switching value acquisition module collection, send control signals to after comprehensive descision control output module 18, it would be desirable to the signal of storage is sent to memory module 20。CPU 11 completes to calculate after controlling operation, result of calculation passes to LCD show and its display of touch screen module 17 confession, result of calculation is delivered to network interface communication module the 14, the oneth RS485 communication module the 15, the 2nd RS485 communication module 16 simultaneously, inquires about for telecommunication。
Compared with prior art, the device for electric energy quality monitoring described in the utility model, reach following effect:
1) apparatus function for electric energy quality monitoring provided herein is complete, including frequency analysis, m-Acetyl chlorophosphonazo analysis, waveform sampling and voltage swells/rapid drawdown record, flickering monitoring, fluction analysis, voltage unbalance factor measurement, the transient state seizure of waveform, logout, measurement control, two-way RS485 communication, network interface communication etc.。
2) device for electric energy quality monitoring provided herein adopts 32 CPU and the DSP being to be core, and the sampling of every cycle may be up to 1024 points, and every half cycle (10ms) of sampled data is refreshed once。Voltage, current measurement precision can reach 0.1 grade, and harmonic measure precision reaches A level, and certainty of measurement is high。
3) device for electric energy quality monitoring provided herein adopts high brightness backlights formula LCD man machine interface display screen, full contact action, without extra key, intuitive display, easy to operate。
Described above illustrate and describes some preferred embodiments of the present utility model, but as previously mentioned, it is to be understood that this utility model is not limited to form disclosed herein, it is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and in utility model contemplated scope described herein, can be modified by the technology of above-mentioned instruction or association area or knowledge。And the change that those skilled in the art carry out and change are without departing from spirit and scope of the present utility model, then all should in the protection domain of this utility model claims。
Claims (8)
1. the device for electric energy quality monitoring, it is characterized in that, including power module, CPU, voltage acquisition module, current acquisition module, DSP module, network interface communication module, a RS485 communication module, the 2nd RS485 communication module, LCD shows and touch screen module, control output module, switching value acquisition module, memory module and clock module
Described voltage acquisition module and current acquisition module are connected respectively to described DSP module, be used for gathering and nursing one's health voltage signal or current signal, and the voltage signal after conditioning and current signal are sent to DSP module；
Described DSP module is connected to described CPU, for receiving voltage signal and the current signal of described voltage acquisition module and the transmission of described current acquisition module, carries out data calculating, and sends result of calculation to described central processing unit for processing；
Described network interface communication module is connected to described CPU, for receiving and process the information frame transmitted from network interface, and the information frame after processing is sent to CPU, and for receiving and process the information frame that described CPU transmits, and the information frame after processing is sent from network interface；
A described RS485 communication module and described 2nd RS485 communication module are connected respectively to described CPU, transmit, from RS485 interface, the information frame of coming for receiving and processing, information frame after processing is sent to CPU, and transmit, from described CPU, the information frame of coming for receiving and processing, and the information frame after processing is sent from RS485 interface；
Described LCD shows and touch screen module, described control output module, described switching value acquisition module, described memory module and described clock module are connected respectively to described CPU；
Described power module is connected to other module except self, provides working power for each module。
2. the device for electric energy quality monitoring according to claim 1, it is characterised in that
Described LCD shows and touch screen module is connected to described CPU, for receiving the real time information sent from CPU, the information of reception is shown on LCD display in real time, and the information position transmission for being touched by touch screen processes to CPU。
3. the device for electric energy quality monitoring according to claim 1, it is characterised in that
Described control output module is connected to described CPU, and for receiving the control information from CPU, and the instruction sent according to CPU carries out the operation of relay and separating brake。
4. the device for electric energy quality monitoring according to claim 1, it is characterised in that
Described switching value acquisition module is connected to described CPU, for gathering the switching value information of outside, and provides after the switching value information of collection is carried out level conversion to CPU and processes。
5. the device for electric energy quality monitoring according to claim 1, it is characterised in that
Described memory module is connected to described CPU, for receiving the write command from described CPU, the data that described CPU sends is stored；And for receiving the reading instruction from described CPU, will be stored in data therein and be sent to described CPU。
6. the arbitrary described device for electric energy quality monitoring according to Claims 1 to 5, it is characterised in that
Described clock module is connected to described CPU, for sending real time clock information to described CPU, provides real-time clock for CPU；And for receive from described CPU pair time information, according to described CPU send pair time information carry out time information renovation。
7. the arbitrary described device for electric energy quality monitoring according to Claims 1 to 5, it is characterised in that
Described network interface communication module adopts MODBUS-TCP agreement to carry out network interface Communication processing。
8. the arbitrary described device for electric energy quality monitoring according to Claims 1 to 5, it is characterised in that
A described RS485 communication module and described 2nd RS485 communication module adopt MODBUS-RTU agreement to carry out serial communication process。
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| CN201521107288.9U CN205333755U (en) | 2015-12-27 | 2015-12-27 | A device for electric energy quality monitoring |
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| CN201521107288.9U CN205333755U (en) | 2015-12-27 | 2015-12-27 | A device for electric energy quality monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062804A (en) * | 2021-11-01 | 2022-02-18 | 广东电网有限责任公司广州供电局 | Electric energy quality monitoring equipment with wave recording function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062804A (en) * | 2021-11-01 | 2022-02-18 | 广东电网有限责任公司广州供电局 | Electric energy quality monitoring equipment with wave recording function |
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