CN101464503A - Electric energy quality monitoring terminal - Google Patents

Electric energy quality monitoring terminal Download PDF

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Publication number
CN101464503A
CN101464503A CNA200710172628XA CN200710172628A CN101464503A CN 101464503 A CN101464503 A CN 101464503A CN A200710172628X A CNA200710172628X A CN A200710172628XA CN 200710172628 A CN200710172628 A CN 200710172628A CN 101464503 A CN101464503 A CN 101464503A
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CN
China
Prior art keywords
electric energy
unit
interface
data
power
Prior art date
Application number
CNA200710172628XA
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Chinese (zh)
Inventor
廖铀
张家宪
曹基华
田英杰
周勇
张根才
章浩然
Original Assignee
上海联能仪表有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 上海联能仪表有限公司 filed Critical 上海联能仪表有限公司
Priority to CNA200710172628XA priority Critical patent/CN101464503A/en
Publication of CN101464503A publication Critical patent/CN101464503A/en

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Abstract

The invention relates to an electric energy quality monitoring terminal which comprises a device power supply, an input signal transformation unit, an electric energy quality detecting unit, an electric energy measurement detecting unit and a network server interface unit. The technical scheme has the advantages that the electric energy quality monitoring terminal serves the functions of an electric energy quality analyzer and an electric energy measurement detecting device; a user can conveniently measure two parameters through carrying a device; and the electric energy quality detecting unit and the electric energy measurement detecting unit commonly use the identical device power supply and the network server interface unit, so that the manufacture cost of the device is saved.

Description

Electric energy quality monitoring terminal

[technical field]

The present invention relates to field of power electronics, particularly electric energy quality monitoring terminal.

[background technology]

China's electric power enterprise plays important effect in the activity of development national economy, along with the development of society, the quality of power supply more and more comes into one's own.Power quality analyzer is to detect imperative equipment in the quality of power supply work as the core instrument of the calibrating quality of power supply, and whether the duty of power quality analyzer is normal, is one of problem of paying close attention to of Power Quality Detection need of work.

The electric energy metrical checkout equipment is used for the detection of grid operating position of electric weight within a certain period of time, is one of equipment the most frequently used in the field of power.

Above-mentioned two kinds of equipment all are common equipment in the power domain, are used for the quality and the consumption of electric energy in the detection of grid.In the prior art, manufacturer independently produces and sells above-mentioned two kinds of equipment, in use, also is to use respectively as two kinds of equipment.Use the slip-stick artist of these two kinds of equipment need be, select to use which kind of equipment to measure, and be respectively two kinds of equipment power supply and data storage device independently separately are provided independently, increased the cost of manufacturing equipment according to need of work.

[summary of the invention]

Technical matters to be solved by this invention is, a kind of monitoring terminal is provided, can compatible power quality analyzer and the function of electric energy metrical checkout equipment, which kind of function the slip-stick artist can in use select to use easily, and can save power supply and data-interface and data storage device.

In order to address the above problem, the invention provides a kind of electric energy quality monitoring terminal, comprise device power supply (DPS), input signal converter unit, Power Quality Detection unit, electric energy metrical detecting unit, network server interface unit.

Optionally, described Power Quality Detection unit comprises analog/digital converter, digital signal processing chip, program storage, data-carrier store, data-interface.

Optionally, described electric energy metrical detecting unit comprises electric weight detection chip, power requirement and data-carrier store, electrical energy pulse output, data-interface, RS485 interface and power supply control interface.

Optionally, described network server interface unit comprises storage administration chip, storage card, data-interface, network interface and RS232 interface.

Optionally, the input signal converter unit with the converting electrical signal in the electrical network after, input Power Quality Detection unit and electric energy metrical detecting unit; The data fan-in network server interface unit that Power Quality Detection unit and electric energy metrical detecting unit obtain analysis; The network server interface unit is published to network after the data recording that obtains is also analyzed; Device power supply (DPS) is used to operation of entire equipment that power is provided.

The advantage of technical scheme of the present invention is: the electric energy quality monitoring terminal compatibility function of power quality analyzer and electric energy metrical checkout equipment, the user carries an equipment can carry out the measurement of two kinds of parameters easily; Common same set of device power supply (DPS) and network server interface unit, the manufacturing cost of having saved equipment used of Power Quality Detection unit and electric energy metrical detecting unit.

[description of drawings]

Accompanying drawing 1 is the device synoptic diagram of electric energy quality monitoring terminal embodiment.

[embodiment]

Introduce the embodiment of electric energy quality monitoring terminal of the present invention below in conjunction with accompanying drawing.

A kind of electric energy quality monitoring terminal comprises device power supply (DPS), input signal converter unit, Power Quality Detection unit, electric energy metrical detecting unit, network server interface unit.The Power Quality Detection unit comprises analog/digital converter, digital signal processing chip, program storage, data-carrier store, data-interface.The electric energy metrical detecting unit comprises electric weight detection chip, power requirement and data-carrier store, electrical energy pulse output, data-interface, RS485 interface and power supply control interface.The network server interface unit comprises storage administration chip, storage card, data-interface, network interface and RS232 interface.

The input signal converter unit with the converting electrical signal in the electrical network after, input Power Quality Detection unit and electric energy metrical detecting unit; The data fan-in network server interface unit that Power Quality Detection unit and electric energy metrical detecting unit obtain analysis; The network server interface unit is published to network after the data recording that obtains is also analyzed; Device power supply (DPS) is used to operation of entire equipment that power is provided.

Accompanying drawing 1 is depicted as the device synoptic diagram of electric energy quality monitoring terminal embodiment, comprises device power supply (DPS) 101, input signal converter unit 102, Power Quality Detection unit 103, electric energy metrical detecting unit 104, network server interface unit 105.

Device power supply (DPS) 101 is used to input signal converter unit 102, Power Quality Detection unit 103, electric energy metrical detecting unit 104 and the network server interface unit 105 etc. of equipment that power is provided.Power Quality Detection unit and consumption detection unit are the functions that realizes Power Quality Detection and consumption detection respectively, and both use same set of device power supply (DPS) jointly, compare with prior art, have saved a cover power-supply device.

Input signal converter unit 102 adopts the input signal translation circuit of design, the signal that the signal transformation forming apparatus in the electrical network can be discerned.The sort signal translation circuit belongs to those skilled in that art's technology in common knowledge.

Power Quality Detection unit 103 comprises analog/digital converter 103a, digital signal processing (DSP) chip 103b, program storage 103c, data-carrier store 103d, data-interface 103e.Dsp chip 103b is used for the signal analysis quality of power supply according to input, is the nucleus equipment of Power Quality Detection unit 103.Analog/digital converter 103a is used for the simulating signal of input is changed into the digital signal that dsp chip 103b can discern.Program storage 103c and data-carrier store 103d are used for storing the data of dsp chip 103b needed program of work and generation.The storage medium of program storage 103c adopts static RAM (SDRAM), and the storage medium of data-carrier store 103d adopts flash memory (FLASH).Data-interface 103e adopts Serial Peripheral Interface (SPI), is used for the data fan-in network server interface unit 105 that dsp chip 103b computing is obtained.

Electric energy quality monitoring terminal unit 104 comprises electric weight detection chip 104a, power requirement and data-carrier store 104b, electrical energy pulse output 104c, data-interface 104d, RS485 interface 104e and power supply control interface 104f.

The single-chip microcomputer of electric weight detection chip 104a adopts 16 low-power consumption MSP430 series of products.Have 60 program's memory spaces, the RAM of 2K, internal bus adopts 16 and operates.What adopt is " Feng-Nuo Yiman " structure, and ROM, RAM use a group address data bus at same address space.Transparent, high efficiency orthogonal design that simplify, high that CPU (central processing unit) has adopted, it comprises one 16 arithmetic logical unit (ALU), 16 registers, an instruction control unit, there are 4 to be specific use in 16 registers, play an important role, be respectively: programmable counter, stack pointer, status register, constant generator.Program circuit is controlled by programmable counter, and the presence states that program is carried out is embodied in the program status word (PSW).This single-chip microcomputer has disposed 2 UART Universal Asynchronous Receiver Transmitter (UART), is used for RS485 interface 104e and checks meter and the use of infrared communication mouth.

The built-in sampling with high precision chip of electric weight detection chip 104a is realized the function of electric quantity metering by the AD conversion.By having the forward and reverse active energy function of time-sharing measurement, four-quadrant reactive energy function after the MCU processing; Has the time function that forward and reverse meritorious maximum demand of time-sharing measurement and requirement take place; Measure the parameters such as voltage, current effective value, frequency and power factor of three phases in real time.

According to the needs of practical application, electric weight detection chip 104a also can adopt other this function of chip microcontroller.Data-interface 104d adopts Serial Peripheral Interface (SPI), is used for electric weight detection chip 104a collection and the data fan-in network server interface unit 105 that obtains after handling.

Network server interface unit 105 comprises storage administration chip 105a, storage card 105b, data-interface 105c, network interface 105d and RS232 interface 105e.Network server interface unit 105 is used for statistics, quality of power supply report, real time data, the issue of historical data, the preservation of incident recorder data.Data-interface 105c adopts Serial Peripheral Interface, is used to receive the data of Power Quality Detection unit 103 and 104 outputs of electric energy metrical detecting unit.Storage administration chip 105a adopts ARM7 processor, storage card 105b to adopt the SD card of 8G capacity, calculate according to Power Quality Detection unit 103 and electric energy metrical detecting unit 104 daily data growing amounts, the SD card of 8G capacity can be stored the total data that produces in 90 days at least.Network interface 105d adopts the TCP/IP interface.The result that storage administration chip 105 calculates can upload on the intranet or other computer networks that is connected to this equipment that is published to the user by network interface 105d and RS232 interface 105e.Network server interface unit 105 is Power Quality Detection unit 103 and electric energy metrical detecting unit 104 public data storage and analytical equipment.Both common same set of data storage and analytical equipments used are compared with prior art, have saved a cover power-supply device.

Input signal converter unit 102 with the converting electrical signal in the electrical network after, input Power Quality Detection unit 103 and electric energy metrical detecting unit 104; The data fan-in network server interface unit 105 that Power Quality Detection unit 103 and electric energy metrical detecting unit 104 obtain analysis; Network server interface unit 105 is published to network after the data recording that obtains is also analyzed; Device power supply (DPS) 101 is used to operation of entire equipment that power is provided.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (5)

1. an electric energy quality monitoring terminal is characterized in that, comprises device power supply (DPS), input signal converter unit, Power Quality Detection unit, electric energy metrical detecting unit, network server interface unit.
2. the electric energy quality monitoring terminal according to claim 1 is characterized in that, described Power Quality Detection unit comprises analog/digital converter, digital signal processing chip, program storage, data-carrier store, data-interface.
3. the electric energy quality monitoring terminal according to claim 1 is characterized in that, described electric energy metrical detecting unit comprises electric weight detection chip, power requirement and data-carrier store, electrical energy pulse output, data-interface, RS485 interface and power supply control interface.
4. the electric energy quality monitoring terminal according to claim 1 is characterized in that, described network server interface unit comprises storage administration chip, storage card, data-interface, network interface and RS232 interface.
5. the electric energy quality monitoring terminal according to claim 1 is characterized in that, the input signal converter unit with the converting electrical signal in the electrical network after, input Power Quality Detection unit and electric energy metrical detecting unit; The data fan-in network server interface unit that Power Quality Detection unit and electric energy metrical detecting unit obtain analysis; The network server interface unit is published to network after the data recording that obtains is also analyzed; Device power supply (DPS) is used to operation of entire equipment that power is provided.
CNA200710172628XA 2007-12-20 2007-12-20 Electric energy quality monitoring terminal CN101464503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA200710172628XA CN101464503A (en) 2007-12-20 2007-12-20 Electric energy quality monitoring terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA200710172628XA CN101464503A (en) 2007-12-20 2007-12-20 Electric energy quality monitoring terminal

Publications (1)

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CN101464503A true CN101464503A (en) 2009-06-24

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101901422A (en) * 2010-04-27 2010-12-01 夏辰安 Real-time on-line monitoring and management system for power system
CN102981069A (en) * 2011-09-07 2013-03-20 上海久隆电力科技有限公司 Electric energy comprehensive information acquisition terminal
CN102998572A (en) * 2012-12-18 2013-03-27 山东电力集团公司电力科学研究院 Playback device and method for recording power qualities
CN103185835A (en) * 2013-03-28 2013-07-03 国家电网公司 Electric energy metering device with electric energy quality monitoring function
CN103197179A (en) * 2013-03-26 2013-07-10 国家电网公司 Power quality detecting terminal used for power grids
CN105717472A (en) * 2014-12-03 2016-06-29 国家电网公司 Electric energy quality monitoring terminal simulator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101901422A (en) * 2010-04-27 2010-12-01 夏辰安 Real-time on-line monitoring and management system for power system
CN102981069A (en) * 2011-09-07 2013-03-20 上海久隆电力科技有限公司 Electric energy comprehensive information acquisition terminal
CN102998572A (en) * 2012-12-18 2013-03-27 山东电力集团公司电力科学研究院 Playback device and method for recording power qualities
CN102998572B (en) * 2012-12-18 2014-12-03 山东电力集团公司电力科学研究院 Playback device and method for recording power qualities
CN103197179A (en) * 2013-03-26 2013-07-10 国家电网公司 Power quality detecting terminal used for power grids
CN103185835A (en) * 2013-03-28 2013-07-03 国家电网公司 Electric energy metering device with electric energy quality monitoring function
CN103185835B (en) * 2013-03-28 2015-12-02 国家电网公司 A kind of electric power meter with electric energy quality monitoring
CN105717472A (en) * 2014-12-03 2016-06-29 国家电网公司 Electric energy quality monitoring terminal simulator

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