CN202975293U - Intelligent power supply quality monitor system - Google Patents
Intelligent power supply quality monitor system Download PDFInfo
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- CN202975293U CN202975293U CN 201220317700 CN201220317700U CN202975293U CN 202975293 U CN202975293 U CN 202975293U CN 201220317700 CN201220317700 CN 201220317700 CN 201220317700 U CN201220317700 U CN 201220317700U CN 202975293 U CN202975293 U CN 202975293U
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- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000006870 function Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
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- 230000007175 bidirectional communication Effects 0.000 abstract 1
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Abstract
The utility model discloses an intelligent power supply quality monitor system, comprising a microprocessor U1, a three-phase multifunctional electric energy metering unit U2, a resistance potential-divider network U3, a DC-DC power supply module U4, a memory unit U5 and a network port communication interface unit U6. The intelligent integral functions such as electric power metering, load control, relay protection, electric power scheduling, fault detection and fault isolation are realized. The utility model provides the beneficial effects as following: a three-phase multifunctional electric energy metering chip is employed, the detection precision is high, functions are many, the metering reliability is guaranteed, bidirectional communication is realized through the network port, compared to the traditional 485 communication transmission, the speed is higher, the transmission distance is longer, and the communication reliability is higher. The industrial application of the intelligent power supply quality monitor system possesses certain generality.
Description
Technical field
The utility model relates to the electric power observation and control technical field, is specifically related to the exploitation of intelligent power supply Quality Monitoring Control System.
Background technology
Along with the develop rapidly of Power Electronic Technique, various power electronic equipments electric system, Industry Control and daily in application increasingly extensive, also more and more higher to the requirement of distribution system.Except the requirement of traditional capacity and reliability is improved, the measurement of each parameter index of distribution system, fault detect, remote monitoring etc. are also had higher requirement.
The power supply smart detection system be guarantee in modern electric power system terminal user's consumer can be safely, reliably, one of the important composition of economical operation.
The power supply smart detection system of implementing efficiently and accurately has been the task of top priority.At present electric energy can't mass storage, and its production, transmission and use are carried out in must be at one time.Therefore, power industry to realize the intellectuality of the comprehensive functions such as electric-power metering, load control, relay protection, power scheduling, fault detect and fault isolation be the power industry development in the urgent need to.The power supply smart detection system has all been brought into play vital role in electric-power metering, relay protection, fault detect.
The Intelligentized electric energy Quality Monitoring Control System is controlled the collection of data by microprocessor, and data are processed and shown in real time, combining to complete numerous data by soft and hardware processes and control task, the introducing of microprocessor not only can solve conventional instrument can not or masty problem, and simplify circuit, increase function, improve precision and reliability, reduce costs, Speeding up development speed, and then bring larger economic benefit to society.
The utility model content
Fundamental purpose of the present utility model is to provide a kind of intelligent power supply Quality Monitoring Control System of real time measure two-way communication for simplifying circuit, increase function, improve precision and reliability, reducing costs.
The utility model is achieved through the following technical solutions:
This intelligent power supply Quality Monitoring Control System comprises microprocessor U1, three-phase multifunctional electric energy metrical unit U2, resistance pressure-dividing network U3, DC-DC power module U4, memory cell U5 and network interface communications interface unit U6;
The serial communication interface of three-phase multifunctional electric energy metrical unit U2 is connected with microprocessor U1, the current input terminal of three-phase multifunctional electric energy metrical unit U2 is connected with the secondary side output terminal of current transformer, the three-phase current input is connected to current transformer, realizes the collection to three-phase current; The voltage input end of three-phase multifunctional electric energy metrical unit U2 is connected with voltage transformer (VT) by resistor voltage divider network U3, and voltage transformer (VT) is connected to the three-phase voltage input, realizes the collection to three-phase voltage.
DC-DC power module U4 is connected with U1, U2, U5, U6, is each chip power supply.
Microprocessor U1 is connected with memory cell U5, and the electrical energy parameter that collects is stored in memory unit U5.
Microprocessor U1 is connected with network interface communications interface unit U6, realizes two-way mutual communication.
Described three-phase multifunctional electric energy metrical unit U2 adopts the ADE7758 chip.
The utlity model has following beneficial effect:
(1) adopt the three-phase multifunctional electric energy computation chip, accuracy of detection is high, function is more, guarantees the reliability of metering.(2) adopt network interface to realize two-way communication, compare 485 traditional communication transfer speeds faster, transmission range is farther, and communication reliability is higher.
Description of drawings
Fig. 1 is the structured flowchart that the utility model proposes.
In figure, each label is, U1, microprocessor, U2, three-phase multifunctional electric energy metrical unit, U3, resistance pressure-dividing network, U4, DC-DC power module, U5, memory cell, U6, network interface communications interface unit.
Embodiment
Below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the structured flowchart for the utility model proposes.In figure, micro controller unit U1 adopts the dragon single-chip microcomputer C8051F500 of Xinhua, three-phase multifunctional electric energy metrical unit U2 adopts ADE7758, it is 249K that resistor voltage divider network U3 adopts 4 resistances, precision is 0.1% precision resistance series connection, DC-DC module U4 adopts 24V to turn the 5V module, and memory cell U5 adopts ferroelectric memory FM31256, and network interface communication unit U6 adopts the network interface module w5100 of WIZnet company.
ADE7758 multifunctional electric energy computation chip is connected with the C8051F500 single-chip microcomputer by spi bus, and its electric current input channel and voltage input channel range are all 0.5V, and electric current to be measured and voltage are respectively 5A and 220V, therefore needs to increase match circuit.Particularly, the secondary side output terminal of the current input terminal current transformer of ADE7758 multifunctional electric energy computation chip changes into 5mA with 5A; The voltage input end of ADE7758 is connected with resistor voltage divider network, uses 4 resistances to be 249K, and precision is 0.1% the rear access of precision resistance series connection ADE7758.
Single-chip microcomputer C8051F500 passes through I
2The C bus is connected with ferroelectric memory FM31256, by constantly refreshing the electric quantity data in storage chip, but the real-time parameter of overall monitor energy information.
Single-chip microcomputer C8051F500 is connected with network interface module w5100, realizes two-way mutual communication, and communication speed is faster, transmission range is farther.
Claims (2)
1. intelligent power supply Quality Monitoring Control System, it is characterized in that: it comprises microprocessor (U1), three-phase multifunctional electric energy metrical unit (U2), resistance pressure-dividing network (U3), DC-DC power module (U4), memory cell (U5) and network interface communications interface unit (U6);
The serial communication interface of three-phase multifunctional electric energy metrical unit (U2) is connected with microprocessor (U1), the current input terminal of three-phase multifunctional electric energy metrical unit (U2) is connected with the secondary side output terminal of current transformer, the three-phase current input is connected to current transformer, realizes the collection to three-phase current; The voltage input end of three-phase multifunctional electric energy metrical unit (U2) is connected with voltage transformer (VT) by resistor voltage divider network (U3), and voltage transformer (VT) is connected to the three-phase voltage input, realizes the collection to three-phase voltage;
DC-DC power module (U4) is connected with microprocessor (U1), three-phase multifunctional electric energy metrical unit (U2), memory cell (U5), network interface communications interface unit (U6), is each chip power supply;
Microprocessor (U1) is connected with memory cell (U5), and the electrical energy parameter that collects is stored in memory unit (U5);
Microprocessor (U1) is connected with network interface communications interface unit (U6), realizes two-way mutual communication.
2. intelligent power supply Quality Monitoring Control System according to claim 1, is characterized in that: described three-phase multifunctional electric energy metrical unit (U2) employing ADE7758 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317700 CN202975293U (en) | 2012-06-29 | 2012-06-29 | Intelligent power supply quality monitor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317700 CN202975293U (en) | 2012-06-29 | 2012-06-29 | Intelligent power supply quality monitor system |
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| CN202975293U true CN202975293U (en) | 2013-06-05 |
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| CN 201220317700 Expired - Lifetime CN202975293U (en) | 2012-06-29 | 2012-06-29 | Intelligent power supply quality monitor system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389473A (en) * | 2013-07-29 | 2013-11-13 | 北京国铁路阳技术有限公司 | Double-path real-time signal power supply monitoring device and control method |
| CN105929232A (en) * | 2016-05-11 | 2016-09-07 | 国网浙江省电力公司电力科学研究院 | Method and system for metering energy efficiency of flexible DC power transmission system |
-
2012
- 2012-06-29 CN CN 201220317700 patent/CN202975293U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389473A (en) * | 2013-07-29 | 2013-11-13 | 北京国铁路阳技术有限公司 | Double-path real-time signal power supply monitoring device and control method |
| CN103389473B (en) * | 2013-07-29 | 2015-05-20 | 北京国铁路阳技术有限公司 | Control method for double-path real-time signal power supply monitoring device |
| CN105929232A (en) * | 2016-05-11 | 2016-09-07 | 国网浙江省电力公司电力科学研究院 | Method and system for metering energy efficiency of flexible DC power transmission system |
| CN105929232B (en) * | 2016-05-11 | 2018-12-14 | 国网浙江省电力公司电力科学研究院 | A kind of the efficiency metering method and system of flexible HVDC transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING PURSMA ELECTRIC MOTOR TECHNOLOGIES CO., LT Free format text: FORMER OWNER: BEIJING CIEALOM AUTOMATION ENGINEERING TECHNOLOGY CO., LTD. Effective date: 20150413 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150413 Address after: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee after: Beijing University of Technology Patentee after: BEIJING PRISMA ELECTRIC TECHNOLOGY CO.,LTD. Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee before: Beijing University of Technology Patentee before: Beijing CIEALOM Automation Engineering Technology Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |