CN202614876U - Integrated device of electric energy quality monitoring and fault recording - Google Patents

Integrated device of electric energy quality monitoring and fault recording Download PDF

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Publication number
CN202614876U
CN202614876U CN 201220260750 CN201220260750U CN202614876U CN 202614876 U CN202614876 U CN 202614876U CN 201220260750 CN201220260750 CN 201220260750 CN 201220260750 U CN201220260750 U CN 201220260750U CN 202614876 U CN202614876 U CN 202614876U
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CN
China
Prior art keywords
circuit
electric energy
energy quality
processing module
quality monitoring
Prior art date
Application number
CN 201220260750
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Chinese (zh)
Inventor
沈浩东
赵景涛
陈琛
孙国城
侯明国
葛成余
王辉
汪鹤
于海平
吴昱炜
张敏
仇佳鑫
Original Assignee
国电南瑞科技股份有限公司
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Priority to CN 201220260750 priority Critical patent/CN202614876U/en
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Publication of CN202614876U publication Critical patent/CN202614876U/en

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Abstract

The utility model discloses an integrated device of electric energy quality monitoring and fault recording. The integrated device comprises an information collection module and an information processing module. The information collection module and the information processing module are connected with each other. The information collection module comprises a programmable logic controller and a plurality of groups of mutual inductors. The plurality of groups of mutual inductors are connected with the programmable logic controller through a signal conditioning circuit. The programmable logic controller is connected with a microprocessor inside the information processing module. The information processing module comprises a memory unit circuit, a communication unit circuit and a man-machine interaction unit circuit, all of which are connected with the microprocessor. The integrated device of the utility model has functions of both electric energy quality monitoring and fault recording, helps to provide reliable analysis data, enables losses caused by electric energy quality problems and faults to be minimized, allows costs for manufacturing of equipment to be lowered, and helps to promote rapid development of a micro-electrical network.

Description

Electric energy quality monitoring and failure wave-recording integrated apparatus

Technical field

The utility model relates to technical field of power systems, is specifically related to a kind of electric energy quality monitoring and failure wave-recording integrated apparatus that is used for little electrical network electric energy quality monitoring and control.

Background technology

Along with the development of little electric power network technique, the introducing of power electronic devices such as blower fan, photovoltaic makes little electrical network quality of power supply situation complicated and changeable; Current little electrical network needs; Monitor power quality data on the one hand in real time, accurately and rapidly, voltage, the current waveform before and after the analysis of failure when electric system is broken down is convenient to fault analysis on the other hand; Thereby the fast processing fault also seems very necessary.Existing equipment for monitoring power quality and fault wave recording device use in little electrical network as two kinds of separate equipment usually; Because two kinds of separate equipment adopt independently power supply and data storage device respectively; The cost of device fabrication is bigger, and in the monitoring of little electrical network, needs a large amount of equipment for monitoring power quality and fault wave recording device; Because the cost of device fabrication is bigger, has hindered the fast development of little electrical network to a certain extent.

The utility model content

The purpose of the utility model is to overcome equipment for monitoring power quality and fault wave recording device in existing little electrical network usually as two kinds of separate equipment; Adopt independently power supply and data storage device respectively; Increase the problem of the cost of device fabrication, the integrated monitoring device that the utility model provides possesses the function of electric energy quality monitoring and failure wave-recording simultaneously; Reliable analysis data can be provided; The loss that causes when reducing power quality problem and fault, and reduced the cost of device fabrication, advanced the fast development of little electrical network.

In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:

A kind of electric energy quality monitoring and failure wave-recording integrated apparatus; Comprise information acquisition module, message processing module; Said information acquisition module is connected with message processing module; It is characterized in that: said information acquisition module comprises programmable logic controller (PLC) spare and some groups of mutual inductors; The said mutual inductor of respectively organizing is connected with programmable logic controller (PLC) spare through signal conditioning circuit, and the said programmable logic controller (PLC) spare microprocessor inner with being arranged on said message processing module is connected, and said message processing module comprises storage unit circuit, communication unit circuit and the man-machine interaction unit circuit that is connected with microprocessor.

Aforesaid electric energy quality monitoring and failure wave-recording integrated apparatus is characterized in that: said information acquisition module also comprises the controlling of sampling circuit that is used to control programmable logic controller (PLC) spare SF that is connected with said programmable logic controller (PLC) spare.

Aforesaid electric energy quality monitoring and failure wave-recording integrated apparatus is characterized in that: said message processing module also comprises control relay circuit and the real-time clock element circuit that the little processing inner with being arranged on said message processing module is connected.

Aforesaid electric energy quality monitoring and failure wave-recording integrated apparatus is characterized in that: said some groups of mutual inductors comprise a plurality of voltage transformer (VT) and a plurality of current transformer.

Aforesaid electric energy quality monitoring and failure wave-recording integrated apparatus is characterized in that: said real-time clock element circuit is provided with B sign indicating number time setting circuit.

Aforesaid electric energy quality monitoring and failure wave-recording integrated apparatus; It is characterized in that: said communication unit circuit comprises usb circuit and ethernet interface circuit; Said man-machine interaction unit circuit comprises touch-screen and LED and key circuit; Said touch-screen is connected with microprocessor through serial port circuit, and said LED and key circuit are connected with the I/O port of microprocessor respectively.

Aforesaid electric energy quality monitoring and failure wave-recording integrated apparatus is characterized in that: said programmable logic controller (PLC) spare adopts FPGA, and the said inner microprocessor of said message processing module that is arranged on adopts PowerPC.

The beneficial effect of the utility model is: the utility model adopts programmable logic controller (PLC) spare and microprocessor multiprocessor to cooperate the monitoring that the quality of power supply is gathered in real time, accurately analyzed, and has the failure wave-recording function simultaneously, and the electric energy quality monitoring and the quality of power supply is integrated; The manufacturing cost of saving equipment; Reliable analysis data can be provided, and the loss that causes when reducing power quality problem and fault also adopts touch-screen to carry out man-machine interaction; Make things convenient for user's checking and inquiring about to power quality data; Friendly interface is designed beautifully, and can effectively advance the fast development of little electrical network.

Description of drawings

Fig. 1 is the electric energy quality monitoring of the utility model and the system chart of failure wave-recording integrated apparatus.

Embodiment

To combine Figure of description below, the utility model will be further described.

Electric energy quality monitoring as shown in Figure 1 and failure wave-recording integrated apparatus comprise information acquisition module, message processing module, and information acquisition module is connected with message processing module; Information acquisition module and message processing module are respectively equipped with programmable logic controller (PLC) spare (selecting FPGA for use) and microprocessor (selecting the PowerPC chip of Motorola Inc. for use), adopt multiple processor structure, and on processor based on embedded Liunx operating system as Software Development Platform; Liunx operating system is the system of increasing income; Have good cutting and transplantability, adopt advanced language programming, guaranteed the high reliability of system; Utilize FPGA to gather power quality parameter; And utilize PowerPC that power quality data format transformation PQDIF is stored and handles, and can solve the compatibling problem of multi-source data, can also realize the multi-angle overview function of quality of power supply physical attribute; The recorder data storage format adopts the COMTRADE file memory format of standard, specifically describes as follows:

Information acquisition module also comprises some groups of mutual inductors, signal conditioning circuit and controlling of sampling circuit; Some groups of mutual inductors comprise a plurality of voltage transformer pts and a plurality of current transformer CT; The voltage transformer pt summation current transformer CT sum here is no more than 24; Can make up use according to the configuring condition of actual track; It is digital signal that signal conditioning circuit is used for analog signal conversion, and the controlling of sampling circuit is used to control the SF of FPGA, and each mutual inductor is connected with FPGA through signal conditioning circuit; FPGA is used for each mutual inductor place passage is sampled; The amplitude of the quality of power supply of each passage of primary Calculation, phase angle and frequency, the FPGA PowerPC inner with being arranged on message processing module is connected, the PowerPC configuration 512M internal memory here; Be used to realize the quick computing of data to the FPGA transmission, message processing module comprises storage unit circuit, communication unit circuit, man-machine interaction unit circuit, control relay circuit and the real-time clock element circuit that is connected with PowerPC.

Said storage unit circuit is provided with the two SATA hard disks of 500G to PQDIF data and comtrade file storage, be used to carry out power quality index Measurement Algorithm, historical data and event information storage, record ripple, to the time, data such as relay signal control storage.

Said communication unit circuit comprises usb circuit and ethernet interface circuit, and message processing module can carry out data communication through usb circuit or ethernet interface circuit and host computer.

Said man-machine interaction unit circuit comprises touch-screen, LED and key circuit, and touch-screen is connected with PowerPC through the RS232 serial port circuit, and LED and key circuit are connected with the I/O port of microprocessor respectively; Touch-screen can provide checking and inquiring about of power quality data; Adopt WinCE operating system, size is 800*480, friendly interface; Be designed beautifully; LED in LED and the key circuit is used to show equipment running such as operation, master control, communication, hard disk, and button is used to check the shortcut of data, can switch to checking and manual activation incident, function such as record ripple etc. of data such as vector, harmonic wave fast.

Said real-time clock element circuit is provided with B sign indicating number time setting circuit, is used for the real-time time of adjusting gear, is consistent with external time, and is presented on the touch-screen.Control relay circuit is used for the information of leaving of control device, and device is unusual, start the corresponding relays action when clock step-out, quality of power supply incident, record ripple.

The concrete course of work of electric energy quality monitoring of the utility model and failure wave-recording integrated apparatus is following: based on the integrated apparatus of the built-in Linux operating system software platform after the cutting; The analog signals of the quality of power supply is linked into signal conditioning circuit respectively through a plurality of voltage transformer pts, a plurality of current transformer CT; Behind signal conditioning circuit, be connected to FPGA; Carry out signal sampling and conversion by FPGA; Then AD transformation result data delivery is arrived PowerPC, PowerPC obtains the relevant parameter value of original signal data computation that the transformation result data comprise three-phase current and voltage, and PowerPC can be connected with touch-screen through the RS232 serial port circuit; Connect in the interface to touch-screen measuring the data presentation that obtains after the calculating; Be convenient to user real time observation, can also carry out data communication through usb circuit or ethernet interface circuit and host computer, the FPGA of the utility model satisfies in electric energy quality monitoring and the failure wave-recording requirement to AD conversion accuracy and real-time fully; In addition; FPGA also carries out measuring power angle to AD and calculates, and every 10ms uploads a secondary data to PowerPC, and the PowerPC of the utility model can accomplish functions such as Power Quality Detection algorithm, failure wave-recording, clock synchronization, incident judgement, communication and data storage.

More than show and described ultimate principle, principal character and the advantage of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims (7)

1. electric energy quality monitoring and failure wave-recording integrated apparatus; Comprise information acquisition module, message processing module; Said information acquisition module is connected with message processing module; It is characterized in that: said information acquisition module comprises programmable logic controller (PLC) spare and some groups of mutual inductors; The said mutual inductor of respectively organizing is connected with programmable logic controller (PLC) spare through signal conditioning circuit, and the said programmable logic controller (PLC) spare microprocessor inner with being arranged on said message processing module is connected, and said message processing module comprises storage unit circuit, communication unit circuit and the man-machine interaction unit circuit that is connected with microprocessor.
2. electric energy quality monitoring according to claim 1 and failure wave-recording integrated apparatus is characterized in that: said information acquisition module also comprises the controlling of sampling circuit that is used to control programmable logic controller (PLC) spare SF that is connected with said programmable logic controller (PLC) spare.
3. electric energy quality monitoring according to claim 1 and failure wave-recording integrated apparatus is characterized in that: said message processing module also comprises control relay circuit and the real-time clock element circuit that the little processing inner with being arranged on said message processing module is connected.
4. electric energy quality monitoring according to claim 1 and failure wave-recording integrated apparatus is characterized in that: said some groups of mutual inductors comprise a plurality of voltage transformer (VT) and a plurality of current transformer.
5. electric energy quality monitoring according to claim 3 and failure wave-recording integrated apparatus is characterized in that: said real-time clock element circuit is provided with B sign indicating number time setting circuit.
6. electric energy quality monitoring according to claim 1 and failure wave-recording integrated apparatus; It is characterized in that: said communication unit circuit comprises usb circuit and ethernet interface circuit; Said man-machine interaction unit circuit comprises touch-screen and LED and key circuit; Said touch-screen is connected with microprocessor through serial port circuit, and said LED and key circuit are connected with the I/O port of microprocessor respectively.
7. electric energy quality monitoring according to claim 1 and failure wave-recording integrated apparatus is characterized in that: said programmable logic controller (PLC) spare adopts FPGA, and the said inner microprocessor of said message processing module that is arranged on adopts PowerPC.
CN 201220260750 2012-06-05 2012-06-05 Integrated device of electric energy quality monitoring and fault recording CN202614876U (en)

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CN 201220260750 CN202614876U (en) 2012-06-05 2012-06-05 Integrated device of electric energy quality monitoring and fault recording

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Application Number Priority Date Filing Date Title
CN 201220260750 CN202614876U (en) 2012-06-05 2012-06-05 Integrated device of electric energy quality monitoring and fault recording

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CN202614876U true CN202614876U (en) 2012-12-19

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103675440A (en) * 2013-05-22 2014-03-26 国家电网公司 Power efficiency monitoring terminal and monitoring method thereof
CN103915895A (en) * 2013-01-06 2014-07-09 上海电力通信有限公司 Comprehensive information acquiring system for transformer substation
CN104090187A (en) * 2014-07-15 2014-10-08 浙江群力电气有限公司 Ring main unit electrical capacity collecting and fault recording device
CN104393674A (en) * 2014-10-28 2015-03-04 许继电气股份有限公司 Intelligent transformer station electronic mutual inductor state monitoring system and method
CN104914326A (en) * 2015-04-30 2015-09-16 许继集团有限公司 Electric energy quality on-line monitoring method and device
CN105548642A (en) * 2016-02-19 2016-05-04 浙江华仪电器科技有限公司 Collection circuit, electric energy quality monitoring device and ring main unit
CN106093627A (en) * 2016-06-01 2016-11-09 武汉中元华电科技股份有限公司 Digital transformer substation power quality event record ripple monitoring device and monitoring method
CN107607805A (en) * 2017-07-31 2018-01-19 国网山东省电力公司电力科学研究院 A kind of distribution overhead line synchronous phasor measurement and operational monitoring terminal and method
CN109298666A (en) * 2018-11-08 2019-02-01 湖北汽车工业学院 A kind of pilotless automobile intelligent control node hardware structure
CN109830931A (en) * 2018-10-29 2019-05-31 全球能源互联网研究院有限公司 A kind of embedded type fault wave recording device suitable for DC control and protection system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103915895A (en) * 2013-01-06 2014-07-09 上海电力通信有限公司 Comprehensive information acquiring system for transformer substation
CN103675440A (en) * 2013-05-22 2014-03-26 国家电网公司 Power efficiency monitoring terminal and monitoring method thereof
CN104090187A (en) * 2014-07-15 2014-10-08 浙江群力电气有限公司 Ring main unit electrical capacity collecting and fault recording device
CN104393674A (en) * 2014-10-28 2015-03-04 许继电气股份有限公司 Intelligent transformer station electronic mutual inductor state monitoring system and method
CN104914326A (en) * 2015-04-30 2015-09-16 许继集团有限公司 Electric energy quality on-line monitoring method and device
CN104914326B (en) * 2015-04-30 2018-11-09 许继集团有限公司 A kind of power quality on-line monitoring method and device
CN105548642A (en) * 2016-02-19 2016-05-04 浙江华仪电器科技有限公司 Collection circuit, electric energy quality monitoring device and ring main unit
CN106093627A (en) * 2016-06-01 2016-11-09 武汉中元华电科技股份有限公司 Digital transformer substation power quality event record ripple monitoring device and monitoring method
CN106093627B (en) * 2016-06-01 2019-04-19 武汉中元华电科技股份有限公司 Digital transformer substation power quality event recording monitoring device and monitoring method
CN107607805A (en) * 2017-07-31 2018-01-19 国网山东省电力公司电力科学研究院 A kind of distribution overhead line synchronous phasor measurement and operational monitoring terminal and method
CN109830931A (en) * 2018-10-29 2019-05-31 全球能源互联网研究院有限公司 A kind of embedded type fault wave recording device suitable for DC control and protection system
CN109298666A (en) * 2018-11-08 2019-02-01 湖北汽车工业学院 A kind of pilotless automobile intelligent control node hardware structure

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