CN203084087U - Total current electric energy quality monitoring device - Google Patents
Total current electric energy quality monitoring device Download PDFInfo
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- CN203084087U CN203084087U CN 201220519145 CN201220519145U CN203084087U CN 203084087 U CN203084087 U CN 203084087U CN 201220519145 CN201220519145 CN 201220519145 CN 201220519145 U CN201220519145 U CN 201220519145U CN 203084087 U CN203084087 U CN 203084087U
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Abstract
A total current electric energy quality monitoring device comprises a data acquisition module, a digital signal processing module, a signal communication module, a data analysis processing module and a peripheral interface control module. The data acquisition module acquires data to send to the digital signal processing module, the data is processed by the digital signal processing module and then is transmitted to the data analysis processing module for processing, and finally the data is outputted by the signal communication module connected with the data analysis processing module; the peripheral interface control module is connected with the data analysis processing module. The total current electric energy quality monitoring device of the utility model is compact in structure and convenient in installation and usage, and can satisfy the basic functional requirements for electric energy quality.
Description
Technical field
The utility model discloses a kind of power energy monitoring and controlling device, and particularly a kind of total current equipment for monitoring power quality belongs to the electron electric power field.
Background technology
Along with fast development of national economy, the essence variation has taken place in remote direct current transportation and the big interconnected electric network composition that makes of electrical network, the electric system of alternating current-direct current mixed running and changeable day by day network load characteristic, the development of making rapid progress of electrified high ferro project etc., and the appearance of various power load forms goes from bad to worse power quality index; Information industry and meticulous industrial expansion are had higher requirement to the quality of power supply simultaneously; Suitable that power quality problem presents the trend that increases day by day, this outstanding contradiction makes power quality problem become the focus that current electric system is paid close attention to.The tradition equipment for monitoring power quality generally can only be measured single voltage, current signal, yet be accompanied by newly-increased day by day various loads, need the multichannel electric current under the same bus is carried out signal monitoring simultaneously, then need to adopt a plurality of equipment for monitoring power quality, and detect for multinomial electrical energy parameter index, then need many cover equipment for monitoring power quality cooperatings just can finish, like this then make the input cost height of system, and cause the wasting of resources easily, make also that simultaneously the maintenance cost of system is too high.
Summary of the invention
Can only measure single voltage, current signal at the above-mentioned equipment for monitoring power quality of mentioning of the prior art, cause use cost too high, the problem of the wasting of resources, the utility model provides a kind of new equipment for monitoring power quality, it can be monitored at the numerous branch current signals under the same circuit, the current signal that records simultaneously more than 2 tunnel can be provided, compare with the equipment that adopts monitoring one road current signal, required quality of power supply equipment reduces more than one times at least.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of total current equipment for monitoring power quality, monitoring device comprises data acquisition module, digital signal processing module, the signal and communication module, data analysis processing module and Peripheral Interface control module, the data collecting module collected data send to digital signal processing module, after handling, digital signal processing module is transferred to the data analysis processing module, sent by the signal and communication module that is attached thereto after the data analysis processing module is handled, the Peripheral Interface control module is connected on the data analysis processing module.
The technical scheme that its technical matters that solves the utility model adopts further comprises:
Described data acquisition module comprises multichannel current sample input interface and AD collecting unit, inputs to the AD collecting unit behind the multichannel current sample input interface sample rate current signal and carries out being transferred to digital signal processing module after the AD conversion.
Described digital signal processing module comprises dsp chip, FLASH and SDRAM, and FLASH is connected with dsp chip respectively with SDRAM.
Described data analysis processing module comprises ARM chip, FLASH and SDRAM, and FLASH is connected with the ARM chip respectively with SDRAM.
Described signal and communication module comprises Ethernet interface and RS-485 interface, and Ethernet interface is connected with the data analysis processing module respectively with the RS-485 interface.
Described Peripheral Interface control module comprises switching value unit and IRIG-B unit, and the switching value unit is connected with the data analysis processing module respectively with the IRIG-B unit.
Described digital signal processing module is connected by dual port RAM with the data analysis processing module, carries out exchanges data.
The beneficial effects of the utility model are: wall-hanging quality of power supply device of the present utility model has compact conformation, and is easy to install, and can satisfy the device of the basic function demand of the quality of power supply.The utility model can be monitored the stable state power quality parameter simultaneously: frequency departure, voltage deviation, harmonic wave, flickering, three-phase imbalance and preface component; The transient power quality parameter: voltage rises temporarily, falls temporarily, interrupts in short-term; Triggering mode of the present utility model: conventional thresholding triggers, the sudden change amount triggers, manual triggers, greatly facilitates use; The utility model possesses electric current and voltage and records wave energy simultaneously; Also can be to other parameter: meritorious, idle, applied power (comprising total ripple, first-harmonic, harmonic wave), power factor, phase shift power factor, voltage effective value, current effective value etc. be monitored.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is the utility model system block diagram.
Embodiment
Present embodiment is the utility model preferred implementation, and other all its principles are identical with present embodiment or approximate with basic structure, all within the utility model protection domain.
Please referring to accompanying drawing 1, the utility model mainly comprises data acquisition module, digital signal processing module, the signal and communication module, data analysis processing module and Peripheral Interface control module, data acquisition module comprises data front-end processing unit and AD collecting unit, front-end processing unit is a multichannel current sample input interface, the multichannel current signal of can sampling simultaneously, the AD collecting unit is made up of precision resister and instrument amplifier, the preposition resistance sampling of accurate collection, to guarantee its input signal conversion linear properties, pass through high resolving power then, dual assurance conversion accuracy of high-speed A/D converter and speed, for the digital signal processing precision provides antecedent condition, data acquisition module is used for peripheral hardware analog voltage signal to be detected is converted to digital voltage signal and it is transferred to digital signal processing module, in the present embodiment, digital signal processing module adopts DSP to realize, digital signal processing module is as the core component of this system, on its performance requirement, carried out strict screening, select the DSP digital signal processing module to select the high-speed floating point dsp processor equally, digital signal processing module comprises dsp chip and the FLASH and the SDROM that are attached thereto, be connected with dual port RAM on the dsp chip, be used for carrying out exchanges data with the data analysis processing module, but the process information of high-speed real-time, storage then, digital signal processing module is used for the digital voltage signal of data acquisition module transmission is carried out signal Processing processing, changing out the data storage of corresponding format gets up, and by dual port RAM chip and data analysis processing module swap data, in the present embodiment, the data analysis processing module adopts the ARM chip, the ARM chip is connected with the dual port RAM chip, be used for carrying out exchanges data with digital signal processing module, be connected with corresponding FLASH and SDROM on the ARM chip, it is used for analysis and arrangement gained data, store according to relevant form, treat that communication module uses, the signal and communication module is connected on the ARM chip, in the present embodiment, the signal and communication module comprises Ethernet interface, communication interfaces such as RS-485 interface, be used to connect administrative analysis system communication with Surveillance center, in the present embodiment, on the ARM chip, also be connected with the Peripheral Interface control module, in the present embodiment, the Peripheral Interface control module comprises switching value unit and IRIG-B unit, and it is used for the control that inputs or outputs of relevant outer setting parameter.
Supporting administrative analysis system of the utility model and Surveillance center is used, the various parameter settings that administrative analysis software can the complete operation monitoring equipment, and real-time data monitoring, data extract, and various statement analysis etc., operation is very convenient.
The utility model in use, the output of data acquisition module is connected with DSP digital signal processing module input interface, the AD sampling of the control signal control data acquisition module that sends by DSP, measured signal is transformed to digital signal corresponding, and the algorithm process through DSP is various types of data storage then; DSP digital signal processing module and ARM data analysis processing module are carried out message exchange by the dual port RAM interface, ARM data analysis processing module upload the data to Surveillance center by the data communication module on the one hand and preserves, ARM data analysis processing module is connected with the Peripheral Interface control module on the other hand, inputs or outputs associated control signal by the Peripheral Interface module.
The utility model adopts high-quality Switching Power Supply aspect energy-conservation, it is little, in light weight to generate heat, and the power consumption of complete machine reduces equally greatly; Outward appearance and installation aspect are selected meticulously, and be attractive in appearance and easy for installation.
Wall-hanging quality of power supply device of the present utility model has compact conformation, and is easy to install, and can satisfy the device of the basic function demand of the quality of power supply.The utility model can be monitored the stable state power quality parameter simultaneously: frequency departure, voltage deviation, harmonic wave, flickering, three-phase imbalance and preface component; The transient power quality parameter: voltage rises temporarily, falls temporarily, interrupts in short-term; Triggering mode of the present utility model: conventional thresholding triggers, the sudden change amount triggers, manual triggers, greatly facilitates use; The utility model possesses electric current and voltage and records wave energy simultaneously; Also can be to other parameter: meritorious, idle, applied power (comprising total ripple, first-harmonic, harmonic wave), power factor, phase shift power factor, voltage effective value, current effective value etc. be monitored.
According to for many years at the actual installation in electric energy quality monitoring field and operation promotion experience, furtherd investigate the demand of current electric energy quality monitoring, the original product technology is upgraded, and the utility model has adopted advanced more processor and up-to-date DSP Digital Signal Processing.Aspect software, carried out more property optimization, for the user makes strong intelligent grid monitoring system.
Claims (7)
1. total current equipment for monitoring power quality, it is characterized in that: described monitoring device comprises data acquisition module, digital signal processing module, signal and communication module, data analysis processing module and Peripheral Interface control module, the data collecting module collected data send to digital signal processing module, after handling, digital signal processing module is transferred to the data analysis processing module, sent by the signal and communication module that is attached thereto after the data analysis processing module is handled, the Peripheral Interface control module is connected on the data analysis processing module.
2. total current equipment for monitoring power quality according to claim 1, it is characterized in that: described data acquisition module comprises multichannel current sample input interface and AD collecting unit, inputs to the AD collecting unit behind the multichannel current sample input interface sample rate current signal and carries out being transferred to digital signal processing module after the AD conversion.
3. total current equipment for monitoring power quality according to claim 1 is characterized in that: described digital signal processing module comprises dsp chip, FLASH and SDRAM, and FLASH is connected with dsp chip respectively with SDRAM.
4. total current equipment for monitoring power quality according to claim 1 is characterized in that: described data analysis processing module comprises ARM chip, FLASH and SDRAM, and FLASH is connected with the ARM chip respectively with SDRAM.
5. total current equipment for monitoring power quality according to claim 1 is characterized in that: described signal and communication module comprises Ethernet interface and RS-485 interface, and Ethernet interface is connected with the data analysis processing module respectively with the RS-485 interface.
6. total current equipment for monitoring power quality according to claim 1 is characterized in that: described Peripheral Interface control module comprises switching value unit and IRIG-B unit, and the switching value unit is connected with the data analysis processing module respectively with the IRIG-B unit.
7. total current equipment for monitoring power quality according to claim 1 is characterized in that: described digital signal processing module is connected by dual port RAM with the data analysis processing module, carries out exchanges data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519145 CN203084087U (en) | 2012-10-11 | 2012-10-11 | Total current electric energy quality monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519145 CN203084087U (en) | 2012-10-11 | 2012-10-11 | Total current electric energy quality monitoring device |
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| CN203084087U true CN203084087U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220519145 Expired - Fee Related CN203084087U (en) | 2012-10-11 | 2012-10-11 | Total current electric energy quality monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808062A (en) * | 2015-05-21 | 2015-07-29 | 云南电网有限责任公司 | Different-place voltage-current phase difference measuring system |
| CN105548743A (en) * | 2015-12-07 | 2016-05-04 | 中国矿业大学 | Electric energy quality monitoring system based on handset client and electric energy quality monitoring method |
-
2012
- 2012-10-11 CN CN 201220519145 patent/CN203084087U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808062A (en) * | 2015-05-21 | 2015-07-29 | 云南电网有限责任公司 | Different-place voltage-current phase difference measuring system |
| CN105548743A (en) * | 2015-12-07 | 2016-05-04 | 中国矿业大学 | Electric energy quality monitoring system based on handset client and electric energy quality monitoring method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 201614 Shanghai city Songjiang District small town of Kunshan Port Road No. 188 Building 5 building -1 Patentee after: LINBO TECHNOLOGY GROUP CO., LTD. Address before: 518000 No. two, No. 401, Jian Xing building, Cha Guang Industrial Zone, Shahe West Road, Nanshan District, Shenzhen, Guangdong Patentee before: LINBO TECHNOLOGY GROUP CO., LTD. |
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| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20161011 |
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| CF01 | Termination of patent right due to non-payment of annual fee |