CN104362744A - Integrated measurement and control device - Google Patents

Integrated measurement and control device Download PDF

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Publication number
CN104362744A
CN104362744A CN201410577745.4A CN201410577745A CN104362744A CN 104362744 A CN104362744 A CN 104362744A CN 201410577745 A CN201410577745 A CN 201410577745A CN 104362744 A CN104362744 A CN 104362744A
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CN
China
Prior art keywords
plug
unit
dsp
control device
signal
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201410577745.4A
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Chinese (zh)
Inventor
陈桂友
周强
朱何荣
徐东方
刘永钢
李广华
王自成
魏明磊
孙辰军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Hebei Electric Power Co Ltd
NR Engineering Co Ltd
Original Assignee
State Grid Hebei Electric Power Co Ltd
NR Engineering Co Ltd
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.)
Filing date
Publication date
Application filed by State Grid Hebei Electric Power Co Ltd, NR Engineering Co Ltd filed Critical State Grid Hebei Electric Power Co Ltd
Priority to CN201410577745.4A priority Critical patent/CN104362744A/en
Publication of CN104362744A publication Critical patent/CN104362744A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

Abstract

The invention discloses an integrated measurement and control device comprising an alternating-current input plug-in, an optical communication plug-in, a DSP (digital signal processing) plug-in and a CPU (central processing unit) plug-in. The alternating-current input plug-in is used for receiving alternating current and voltage input signals, converting the current and voltage input signals into small signals and sending the small signals to the DSP plug-in; the optical communication plug-in is used for receiving sampled data and sending the sampled data to the DSP plug-in; the DSP plug-in is used for calculating cumulative electric quantity and telemetering amount and measuring synchronous phasor based on a global positioning system (GPS) according to the small signals and the sampled data and sending calculated and measured results to the CPU plug-in; the CPU plug-in is used for receiving and unloading the telemetering amount, the cumulative electric quantity, input and GPS based synchronous phasor; the optical communication plug-in, the DSP plug-in and the CPU plug-in are all connected with an HTM bus and a CAN (controller area network) bus for data transmission.

Description

A kind of integrated measure and control device
Technical field
The present invention relates to transformer station's technology, particularly relate to a kind of integrated measure and control device.
Background technology
Along with newly-built, enlarging, the transformation of the construction of electrical network and transformer station, especially second generation intelligent substation is newly-built, more and more higher to the integration level necessitates of electric device.At present, the measure and control device of electric power system, metering device and electric power system are based on global positioning system (GlobalPosition System, GPS) synchronous phasor measurement (PMU, Phasor MeasurementUnit) device independently purchases, installs, like this, not only need very large space to place above-mentioned three kinds of devices, and cost is high.But, the while that current industry being not a kind of, while integral measuring controlling functions, electricity computing function and PMU function, support the measure and control device of analog sampling and digital sample.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of and integrates the support routine sampling of Survey control function, electric quantity accumulation computing function and PMU function and the integrated measure and control device of digital sample.
For achieving the above object, the technical scheme of the embodiment of the present invention is achieved in that a kind of integrated measure and control device, and it is characterized in that, described device comprises:
Receive alternating current, voltage input signal described electric current, voltage input signal are converted to the interchange input plug-in unit that small-signal sends to DSP plug-in unit;
Receive sampled data and described sampling data transmitting given the optical communication plug-in unit of Digital Signal Processing DSP plug-in unit;
Calculate accumulative electricity and remote measurement amount and the measurement synchronized phasor based on global position system GPS according to described small-signal or described sampled data, and calculating and measurement result are sent to the Digital Signal Processing DSP plug-in unit of CPU card;
Receive and on send remote measurement amount, accumulative electricity, intake and the synchronized phasor based on GPS, and receive external control order and be transmitted to the central processor CPU plug-in unit outputing plug-in unit;
Described DSP plug-in unit and CPU card are all connected with the HTM bus and controller area network bus of carrying out transfer of data.
In such scheme: calculate the first meter of accumulative electricity, measure based on the synchronized phasor of GPS the second meter and calculate the 3rd meter of remote measurement amount.
In such scheme, described integrated measure and control device also comprises:
Receive the outside man-machine interface plug-in unit opening the Output rusults into plug-in unit, the power insert outputed plug-in unit, provide power supply providing externally ported signal, displaying CPU card opened into signal.
In such scheme, described optical communication plug-in unit is opened into data for the transformer substation case GOOSE of receiving plane to general object, and receives the CPU control command from DSP plug-in unit.
In such scheme, described optical communication plug-in unit is optical fiber interface.
In such scheme, described sampled data is electric current and the magnitude of voltage of power line.
In such scheme, described CPU card sends control command to DSP plug-in unit;
Described control command for receiving the control command from CPU card, and sends to and outputs plug-in unit by described DSP plug-in unit after the described control command of verification is correct;
Described plug-in unit of outputing receives from the CPU control command of DSP plug-in unit.
In such scheme, described in open and receive establishing by cable into signal from outside into plug-in unit, and convert numeral to and open and send to described CPU card and DSP plug-in unit into signal.
In such scheme, described first meter, the second meter and the 3rd meter share input/output port.
The integrated measure and control device that the embodiment of the present invention provides, be integrated in DSP plug-in unit by there is the first meter of calculating accumulative electricity function and there is the second meter measured based on the synchronized phasor function of GPS, DSP plug-in unit is by remote measurement amount, accumulative electricity and send to CPU card based on the synchronized phasor of GPS by HTM bus, is exported by CPU card; So, the Survey control function at the single interval of transformer station, electric quantity accumulation computing function and PMU function can be realized simultaneously.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of the integrated measure and control device of the embodiment of the present invention;
Fig. 2 is the composition structural representation of embodiment of the present invention DSP plug-in unit;
Fig. 3 is the realization flow schematic diagram of the integrated investigating method of the embodiment of the present invention.
Embodiment
In embodiments of the present invention, be integrated in DSP plug-in unit by there is the first meter of calculating accumulative electricity function and there is the second meter measured based on the synchronized phasor function of GPS, DSP plug-in unit is by remote measurement amount, accumulative electricity and send to CPU card based on the synchronized phasor of GPS by HTM bus, exported by CPU card, complete Survey control function, electric quantity accumulation computing function and PMU function.
It is following that according to Figure of description and embodiment, the present invention is further elaborated.
As shown in Figure 1, the integrated measure and control device 10 described in the embodiment of the present invention, comprising: exchange input plug-in unit 110, optical communication plug-in unit 210, DSP plug-in unit 120, CPU card 130, HTM bus 180 and controller local area network (CAN) bus 190; Described DSP plug-in unit 120, CPU card 130 are all connected with the HTM bus 180 and CAN 190 that complete transfer of data; Wherein,
Exchange input plug-in unit 110, for receiving alternating current, voltage input signal described electric current, voltage input signal are converted to small-signal and send to DSP plug-in unit;
Concrete, exchange input plug-in unit 110, be connected with the voltage transformer 11 outside integrated measure and control device 10 by cable, receive the ac voltage signal from voltage transformer 11, described ac voltage signal is the voltage of power line;
Exchange input plug-in unit 110, be connected with the current transformer 12 outside integrated measure and control device 10 by cable, receive the ac current signal from current transformer 12, described ac current signal is the magnitude of current of power line;
Interchange input plug-in unit 110 is to the ac voltage signal from voltage transformer 11 and change from the ac current signal of current transformer 12, converts small-signal to and sends to DSP plug-in unit 120;
Here, specifically how converting voltage small-signal to ac voltage signal and ac current signal is mature technology, does not repeat them here.
Optical communication plug-in unit 210, for receiving sampled data and giving DSP plug-in unit by described sampling data transmitting;
Concrete, optical communication plug-in unit 210 can be optical fiber interface, be connected with the merge cells 15 outside digitlization measure and control device 10 by optical fiber, receive the sampled data by IEC61850-9-2 format transmission from merge cells 15, described sampled data is the current/voltage value of power line;
Optical communication plug-in unit 210 decoding is carried out to the sampled data from merge cells 15 and synchronous after, send to DSP plug-in unit 120 by HTM bus 180;
Here, specifically how decoding carried out to sampled data and synchronously belong to prior art, not repeating them here.
Optical communication plug-in unit 210 is also connected with the intelligent terminal 16 outside digitlization measure and control device 10 by optical fiber, the GOOSE received from intelligent terminal 16 opens into data, after data decode is opened to described GOOSE, CPU card 130 is sent to, for showing or sending to backstage or send to DSP plug-in unit 120 to verify for remote control by CAN 190.
DSP plug-in unit 120, for calculating accumulative electricity and remote measurement amount and the measurement synchronized phasor based on GPS respectively according to the small-signal received or sampled data, and sends to CPU card 130 by HTM bus 180 by calculating and measurement result.
Here, the concrete composition structure of DSP plug-in unit 120 as shown in Figure 2, comprises the first meter 21, second meter 22 and the 3rd meter 23; Wherein,
First meter 21, for calculating accumulative electricity;
Second meter 22, for measuring the synchronized phasor based on GPS;
3rd meter 23, for calculating remote measurement amount;
Concrete, how the described distant current/voltage value being measured as electric power system power line, calculate accumulative electricity and remote measurement amount and the synchronized phasor measured based on GPS and all belong to prior art, repeat no more here.
CPU card 130, for receiving the calculating and measurement result that DSP plug-in unit 120 sends, and on send remote measurement amount, accumulative electricity and the synchronized phasor based on GPS;
Concrete, CPU card 130 uses IEC61850 stipulations and transformer station's integrated system to carry out communication by Ethernet, realize remote measurement amount on give;
CPU card 130 uses IEC61850 stipulations and electric quantity acquisition apparatus 13 to carry out communication by Ethernet, and the accumulative charge value of realization send;
CPU card 130 uses IEC1344 stipulations and PMU collector 14 to carry out communication by Ethernet, realize based on GPS synchronized phasor on give;
Wherein, transformer station's integrated system, electric quantity collector 13 and PMU collector 14 are the device outside described integrated measure and control device 10.
CPU card 130, also for sending control command to DSP plug-in unit 120;
Accordingly, DSP plug-in unit 120, also for receiving the control command from CPU card 130, verifies described control command, when check results is correct, described control command is sent to and outputs plug-in unit 150;
Here, how DSP plug-in unit 120 specifically belongs to prior art to control command verification, does not repeat them here.
Output plug-in unit 150, for receive DSP plug-in unit 120 verify after CPU control command, control output plug-in unit 150 self with relay outlet;
Wherein, described control command comprises remote control conjunction and remote control divides.
Described integrated measure and control device 10 also comprises: open into plug-in unit 140, power insert 160, man-machine interface plug-in unit 170; Wherein,
Open into plug-in unit 140, establishing by cable into signal for receiving outside integrated measure and control device, by CAN 190, described opening being sent to CPU card 130 and DSP plug-in unit 120 into signal;
Accordingly, CPU card 130, opens opening into signal for showing or sending to backstage into plug-in unit 140 transmission for receiving.DSP plug-in unit 120, opens opening into signal for participating in the verification of control command into plug-in unit 140 transmission for receiving.
Power insert 160, for providing power supply for described integrated measure and control device; Wherein, described power insert 160 can be ac/dc power supply.
Man-machine interface plug-in unit 170, for showing the Output rusults of CPU card 130; Wherein, described man-machine interface plug-in unit 170 can be display device, as display screen etc.;
Accordingly, CPU card 130 is connected with man-machine interface plug-in unit 170, exports final result;
Wherein, described final result comprises current/voltage amplitude, electricity, PMU phasor, opens into signal and control command record.
The realization flow of the integrated investigating method of the present invention, as shown in Figure 3, comprises the following steps:
Step 301, received current, voltage signal;
Concrete, exchange input plug-in unit, be connected with the voltage transformer outside integrated measure and control device by cable, receive the ac voltage signal from voltage transformer, be connected with the current transformer outside integrated measure and control device by cable, receive the ac current signal from current transformer, exchange plug-in unit and ac current signal and ac voltage signal are converted to small-signal, and send to DSP plug-in unit.
Step 302, receives sampled data;
Concrete, optical communication plug-in unit receives the sampled data of the IEC61850-9-2 form sent from the merge cells outside digitlization measure and control device, and to described sampled data carry out decoding and synchronously after, send to DSP plug-in unit by HTM bus; Wherein, described sampled data is power line current magnitude of voltage;
Concrete how decoding carried out to sampled data and synchronously belong to prior art, not repeating them here.
Step 303, calculating and sending send accumulative electricity, based on the synchronized phasor of GPS and remote measurement amount;
Concrete, the first meter in DSP plug-in unit calculates accumulative electricity, second meter measurement is based on the synchronized phasor of GPS, 3rd meter calculates remote measurement amount, after above-mentioned calculating and measurement result are sent to CPU card by DSP plug-in unit, CPU card, by the backstage of above-mentioned metering and measurement result being given outside integrated measure and control device or harvester, completes subsequent treatment;
Wherein, how to calculate accumulative electricity and remote measurement amount and measure synchronous vector and belong to prior art, do not repeat them here;
Here, the described distant current/voltage value being measured as electric power system power line; Described first meter, the second meter and the 3rd meter share input/output port.
Step 304, receives and establishes by cable into signal;
Open to receive into plug-in unit and establish by cable into signal from the outside of integrated measure and control device, and convert numeral to and open and send to described CPU card into signal, for showing or sending to backstage.Open and send to DSP plug-in unit into signal, for verifying control command into numeral being opened the while of plug-in unit.
Step 305, receives GOOSE and opens into data;
Concrete, the GOOSE that optical communication plug-in unit receives from the intelligent terminal outside digitlization measure and control device opens into data, after data decode is opened to described GOOSE, send to CPU card by CAN, for showing or sending to backstage or send to DSP plug-in unit for controlling verification.
Step 306, receives external control order;
Concrete, CPU card receives the control command from backstage, and described control command is sent to DSP plug-in unit;
Wherein, described control command comprises remote control conjunction and remote control divides.
Step 307, verifies and sends control command;
Concrete, DSP plug-in unit receives the control command that CPU card sends, according to the remote measurement amount that DSP plug-in unit calculates, and the numeral opened into plug-in unit transmission is opened into signal checking control command, sent to by CAN after verification control command is correct and output plug-in unit, output plug-in unit and control self to carry out relay outlet.
In said method, step 301 and 302 can not realize simultaneously, realizes step 301, be elected to and realize step 302 with during light communication plug when selecting and exchanging input plug-in unit; The sequencing of step 303,304,305 and 306 not life period in implementation procedure.
In sum, the present invention proposes a kind of integrated measure and control device, when not changing existing measure and control device composition structure, realizing Survey control function, calculate the integration of accumulative electricity function and PMU function, not only save the space of placing device, and save cost.
Here, described DSP plug-in unit 120, CPU card 130, open into plug-in unit 140 in actual applications, can by being positioned at the digital signal processor (DSP) of integrated measure and control device, microprocessor (MPU), the realization such as central processing unit (CPU) or programmable gate array (FPGA) chip.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (9)

1. an integrated measure and control device, is characterized in that, described device comprises:
Receive alternating current, voltage input signal described electric current, voltage input signal are converted to the interchange input plug-in unit that small-signal sends to DSP plug-in unit;
Receive sampled data and described sampling data transmitting given the optical communication plug-in unit of Digital Signal Processing DSP plug-in unit;
Calculate accumulative electricity and remote measurement amount and the measurement synchronized phasor based on global position system GPS according to described small-signal or described sampled data, and calculating and measurement result are sent to the Digital Signal Processing DSP plug-in unit of CPU card;
Receive and on send remote measurement amount, accumulative electricity, intake and the synchronized phasor based on GPS, and receive external control order and be transmitted to the central processor CPU plug-in unit outputing plug-in unit;
Described DSP plug-in unit and CPU card are all connected with the HTM bus and controller area network bus of carrying out transfer of data.
2. integrated measure and control device according to claim 1, is characterized in that, described DSP plug-in unit comprises: calculate the first meter of accumulative electricity, measure based on the synchronized phasor of GPS the second meter and calculate the 3rd meter of remote measurement amount.
3. integrated measure and control device according to claim 1, is characterized in that, described integrated measure and control device also comprises:
Receive the outside man-machine interface plug-in unit opening the Output rusults into plug-in unit, the power insert outputed plug-in unit, provide power supply providing externally ported signal, displaying CPU card opened into signal.
4. the integrated measure and control device according to claim 1,2 or 3, is characterized in that, described optical communication plug-in unit is opened into data for the transformer substation case GOOSE of receiving plane to general object, and receives the CPU control command from DSP plug-in unit.
5. integrated measure and control device according to claim 4, is characterized in that, described optical communication plug-in unit is optical fiber interface.
6. the integrated measure and control device according to claim 1,2 or 3, is characterized in that, described sampled data is electric current and the magnitude of voltage of power line.
7. the integrated measure and control device according to claim 1,2 or 3, is characterized in that,
Described CPU card sends control command to DSP plug-in unit;
Described control command for receiving the control command from CPU card, and sends to and outputs plug-in unit by described DSP plug-in unit after the described control command of verification is correct;
Described plug-in unit of outputing receives from the CPU control command of DSP plug-in unit.
8. integrated measure and control device according to claim 3, is characterized in that, described in open and receive establishing by cable into signal from outside into plug-in unit, and convert numeral to and open and send to described CPU card and DSP plug-in unit into signal.
9. integrated measure and control device according to claim 2, it is characterized in that, described first meter, the second meter and the 3rd meter share input/output port.
CN201410577745.4A 2014-10-24 2014-10-24 Integrated measurement and control device Pending CN104362744A (en)

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Application Number Priority Date Filing Date Title
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CN105391169A (en) * 2015-11-20 2016-03-09 国家电网公司 Shore-based power supply controller
CN106163026A (en) * 2015-03-25 2016-11-23 福建吉星智能科技股份有限公司 Quick control implementation method is dodged in the synchronization of a kind of modulator
CN107329428A (en) * 2017-07-11 2017-11-07 中国南方电网有限责任公司 A kind of measure and control device switched based on double gps satellite positioning system signal source interfaces
CN107612141A (en) * 2017-09-13 2018-01-19 南京南瑞继保电气有限公司 A kind of active and standby integral measure and control device based on virtual machine technique
CN108469545A (en) * 2017-12-13 2018-08-31 南京南瑞继保电气有限公司 A kind of substation's wideband measuring device
CN109521272A (en) * 2018-08-06 2019-03-26 许继集团有限公司 A kind of synchronous phasor measuring device
CN110865633A (en) * 2019-12-04 2020-03-06 国网湖北省电力有限公司电力科学研究院 Detection system and detection method for integrated measurement and control host of transformer substation
CN110890790A (en) * 2019-12-09 2020-03-17 国网上海市电力公司 Multi-interval integrated digital measurement and control device and main/standby machine switching method thereof
CN111999690A (en) * 2020-08-25 2020-11-27 中电普瑞电力工程有限公司 Batch factory detection system and method for adaptive PMU device
CN112952997A (en) * 2019-12-10 2021-06-11 国网上海市电力公司 Total station integrated digital measurement and control device and method
CN114143628A (en) * 2021-11-15 2022-03-04 国网湖北省电力有限公司电力科学研究院 Multi-rate digital acquisition device and method

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CN201726203U (en) * 2010-07-26 2011-01-26 合肥德盛电器有限责任公司 Comprehensive mining protection, measurement and control device
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Cited By (16)

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CN106163026A (en) * 2015-03-25 2016-11-23 福建吉星智能科技股份有限公司 Quick control implementation method is dodged in the synchronization of a kind of modulator
CN106163026B (en) * 2015-03-25 2018-11-20 福建吉星智能科技股份有限公司 A kind of synchronous quick control method of sudden strain of a muscle of modulator
CN105391169B (en) * 2015-11-20 2018-11-09 国家电网公司 A kind of shore-based power supply controller
CN105391169A (en) * 2015-11-20 2016-03-09 国家电网公司 Shore-based power supply controller
CN107329428A (en) * 2017-07-11 2017-11-07 中国南方电网有限责任公司 A kind of measure and control device switched based on double gps satellite positioning system signal source interfaces
CN107612141A (en) * 2017-09-13 2018-01-19 南京南瑞继保电气有限公司 A kind of active and standby integral measure and control device based on virtual machine technique
CN108469545B (en) * 2017-12-13 2023-08-08 南京南瑞继保电气有限公司 Broadband measuring device for transformer substation
CN108469545A (en) * 2017-12-13 2018-08-31 南京南瑞继保电气有限公司 A kind of substation's wideband measuring device
CN109521272A (en) * 2018-08-06 2019-03-26 许继集团有限公司 A kind of synchronous phasor measuring device
CN110865633A (en) * 2019-12-04 2020-03-06 国网湖北省电力有限公司电力科学研究院 Detection system and detection method for integrated measurement and control host of transformer substation
CN110890790A (en) * 2019-12-09 2020-03-17 国网上海市电力公司 Multi-interval integrated digital measurement and control device and main/standby machine switching method thereof
CN112952997A (en) * 2019-12-10 2021-06-11 国网上海市电力公司 Total station integrated digital measurement and control device and method
CN111999690A (en) * 2020-08-25 2020-11-27 中电普瑞电力工程有限公司 Batch factory detection system and method for adaptive PMU device
CN111999690B (en) * 2020-08-25 2023-08-22 中电普瑞电力工程有限公司 Batch delivery detection system and method for self-adaptive PMU devices
CN114143628A (en) * 2021-11-15 2022-03-04 国网湖北省电力有限公司电力科学研究院 Multi-rate digital acquisition device and method
CN114143628B (en) * 2021-11-15 2024-03-15 国网湖北省电力有限公司电力科学研究院 Multi-rate digital acquisition device and method

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Application publication date: 20150218