CN212459844U - Synchronous phasor measuring device with GPS synchronization function - Google Patents
Synchronous phasor measuring device with GPS synchronization function Download PDFInfo
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- CN212459844U CN212459844U CN202020150146.5U CN202020150146U CN212459844U CN 212459844 U CN212459844 U CN 212459844U CN 202020150146 U CN202020150146 U CN 202020150146U CN 212459844 U CN212459844 U CN 212459844U
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Abstract
The utility model discloses a synchronous phasor measuring device with GPS synchronization function, including the device body, the device body includes insulating casing body, and the display screen is installed to the terminal surface before the device body, and a plurality of control button are installed to the display screen below, and a plurality of data transmission interfaces are installed to insulating casing body one side, and insulating casing body internally mounted has the controller, is equipped with singlechip, signal processing unit, synchronous signal acquisition unit, low pass filter, GPS synchronous control unit, memory cell, interface conversion unit and treater in the controller, the utility model discloses the theory of operation is simple, can accurately measure dynamic synchronous phasor, and the interference killing feature is strong moreover, and measurement accuracy is high.
Description
Technical Field
The utility model relates to a synchronous phasor measurement technical field specifically is a synchronous phasor measurement unit with GPS synchronizing function.
Background
At present, the scales of power grids of various countries are increasingly huge, the trend of interconnection of large power grids is preliminarily formed, on the premise that a GPS (global positioning system) provides accurate time signals, a power distribution network synchronous Phasor Measurement Unit (PMU) realizes synchronous monitoring and measurement of various parameters of a power system in a large range, and the power system synchronous phasor measurement unit is necessarily popularized and applied in the near future.
The existing synchronous phasor measurement device has single function and low synchronous precision, so the improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a synchrophasor measuring device with GPS synchronization function to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a synchronous phasor measuring device with GPS synchronization function, includes the device body, the device body includes insulating casing, the display screen is installed to the terminal surface before the device body, a plurality of control button are installed to the display screen below, a plurality of data transmission interface are installed to insulating casing one side, insulating casing internally mounted has the controller, be equipped with singlechip, signal processing unit, synchronous signal acquisition unit, low pass filter, GPS synchronous control unit, memory cell, interface conversion unit and treater in the controller, synchronous signal acquisition unit input connects electric network voltage and current signal respectively, synchronous signal acquisition unit output connects low pass filter, low pass filter passes through signal processing unit and connects the treater, the treater is connected respectively, GPS synchronous control unit, memory cell, And an interface conversion unit.
Preferably, the GPS synchronous control unit comprises a main control MCU, a GPS module and a power supply module, wherein the power supply module comprises a power supply input circuit, a power supply conversion circuit and a power supply output circuit, the power supply input circuit is connected with the power supply conversion circuit, the power supply conversion circuit is respectively connected with the main control MCU and the GPS module, the GPS module is connected with the main control MCU, the main control MCU is connected with the power supply output circuit, and the power supply conversion circuit is used for converting the power supply voltage of the power supply input circuit into the working voltage of the main control MCU and the GPS module.
Preferably, the plurality of data transmission interfaces include a USB interface, an RS485 interface, an RS232 interface, and a ZigBee interface.
Preferably, the master MCU is embedded with a Kaiser weighted convolution squaring window FIR filter.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses the theory of operation is simple, can accurately measure the dynamic synchronization phasor, and the interference killing feature is strong moreover, and measurement accuracy is high.
(2) The utility model discloses a GPS synchro-control unit control accuracy is high, can realize remote synchronous function.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a control schematic block diagram of the present invention;
fig. 3 is a schematic block diagram of the GPS synchronous control unit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a synchronous phasor measuring device with a GPS synchronization function comprises a device body, wherein the device body comprises an insulating outer shell 1, a display screen 2 is installed on the front end face of the device body, a plurality of control buttons 3 are installed below the display screen 2, a plurality of data transmission interfaces 4 are installed on one side of the insulating outer shell 1, a controller 5 is installed inside the insulating outer shell 1, a single chip microcomputer 6, a signal processing unit 7, a synchronous signal acquisition unit 8, a low-pass filter 9, a GPS synchronous control unit 10, a storage unit 11, an interface conversion unit 12 and a processor 19 are arranged in the controller 5, the input end of the synchronous signal acquisition unit 8 is respectively connected with a network voltage and a current signal, the output end of the synchronous signal acquisition unit 8 is connected with the low-pass filter 9, the low-pass filter 9 is connected with the processor 19 through the signal processing unit 7, the processor 19 is respectively connected with the GPS synchronous control unit 10, the storage unit 11 and the interface conversion unit 12; the processor 19 embeds a Kaiser weighted convolution squaring window FIR filter; the data transmission interfaces 4 comprise a USB interface, an RS485 interface, an RS232 interface and a ZigBee interface.
The utility model discloses in, GPS synchronous control unit 10 includes master control MCU13, GPS module 14 and power module 15, and wherein, power module 15 includes power input circuit 16, power conversion circuit 17 and power output circuit 18, power input circuit 16 connects power conversion circuit 17, and master control MCU13 and GPS module 14 are connected respectively to power conversion circuit 17, master control MCU13 is connected to GPS module 14, master control MCU13 connects power output circuit 18, power conversion circuit 17 is used for converting the mains voltage of power input circuit into the operating voltage of master control MCU and GPS module. The utility model discloses a GPS synchro-control unit control accuracy is high, can realize remote synchronous function.
To sum up, the utility model discloses the theory of operation is simple, can accurately measure the dynamic synchronization phasor, and the interference killing feature is strong moreover, and measurement accuracy is high.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a synchronous phasor measuring device with GPS synchronization function, includes the device body, its characterized in that: the device body comprises an insulating shell body (1), a display screen (2) is installed on the front end face of the device body, a plurality of control buttons (3) are installed below the display screen (2), a plurality of data transmission interfaces (4) are installed on one side of the insulating shell body (1), a controller (5) is installed inside the insulating shell body (1), a signal processing unit (7), a synchronous signal acquisition unit (8), a low-pass filter (9), a GPS synchronous control unit (10), a storage unit (11), an interface conversion unit (12) and a processor (19) are arranged in the controller (5), the input end of the synchronous signal acquisition unit (8) is respectively connected with a power grid voltage signal and a current signal, the output end of the synchronous signal acquisition unit (8) is connected with the low-pass filter (9), and the low-pass filter (9) is connected with the processor (19) through the signal processing unit (7), the processor (19) is respectively connected with the GPS synchronous control unit (10), the storage unit (11) and the interface conversion unit (12).
2. The synchrophasor measurement device according to claim 1, wherein: GPS synchronous control unit (10) includes main control MCU (13), GPS module (14) and power module (15), wherein, power module (15) are including power input circuit (16), power conversion circuit (17) and power output circuit (18), power conversion circuit (17) are connected in power input circuit (16), and main control MCU (13) and GPS module (14) are connected respectively in power conversion circuit (17), main control MCU (13) is connected in GPS module (14), power output circuit (18) are connected in main control MCU (13), power conversion circuit (17) are used for converting the mains voltage of power input circuit into the operating voltage of main control MCU and GPS module.
3. The synchrophasor measurement device according to claim 1, wherein: the data transmission interfaces (4) comprise USB interfaces, RS485 interfaces, RS232 interfaces and ZigBee interfaces.
4. The synchrophasor measurement device according to claim 2, wherein: the master MCU (13) is embedded with a Kaiser weighted convolution squaring window FIR filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020150146.5U CN212459844U (en) | 2020-01-23 | 2020-01-23 | Synchronous phasor measuring device with GPS synchronization function |
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| CN202020150146.5U CN212459844U (en) | 2020-01-23 | 2020-01-23 | Synchronous phasor measuring device with GPS synchronization function |
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| CN212459844U true CN212459844U (en) | 2021-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115079225A (en) * | 2022-07-07 | 2022-09-20 | 深圳市海伊石油技术有限公司 | Navigation positioning method and device of marine receiver |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115079225A (en) * | 2022-07-07 | 2022-09-20 | 深圳市海伊石油技术有限公司 | Navigation positioning method and device of marine receiver |
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