CN112147560A - Simple carrier module detection method based on inversion technology and split-phase detection technology - Google Patents
Simple carrier module detection method based on inversion technology and split-phase detection technology Download PDFInfo
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- CN112147560A CN112147560A CN201910559149.6A CN201910559149A CN112147560A CN 112147560 A CN112147560 A CN 112147560A CN 201910559149 A CN201910559149 A CN 201910559149A CN 112147560 A CN112147560 A CN 112147560A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The invention discloses a simple detection method of a carrier module based on an inversion technology and a split-phase detection technology. The invention generates the current frequency same as that of a three-phase circuit through the micro inverter, loads the carrier signal on the alternating current signal and transmits the carrier signal, and can realize whether each phase of the three-phase concentrator or the three-phase carrier meter is damaged or not under the condition of no three-phase alternating current by comparing the statistical data of the three-phase concentrator or the three-phase carrier before and after detection and combining a split-phase detection technology.
Description
Technical Field
The invention belongs to the technical field of circuit detection, and particularly relates to a simple carrier module detection method based on an inversion technology and a split-phase detection technology.
Background
With the advance of the construction of national power grids and southern power grid smart power grids, the number of electric energy meters in the electric energy meters is more and more, and with more and more acquisition equipment in the electric energy meters, tens of millions of single acquisition equipment in the national power grids can be obtained. The acquisition success rate of the device for centralized meter reading AMI (advanced metering infrastructure) is the most important index of the device, the current automatic meter reading acquisition mode mainly comprises RS-485, micropower wireless and carrier waves, the 485 as the traditional wired mode needs wiring, has higher construction difficulty and is only suitable for the centrally installed electric energy meter device, the meter reading mode without wiring gradually becomes the mainstream, the micropower wireless has great limitation due to the problem of communication space, so the carrier wave mode in the acquisition device occupies most parts at present, the success rate of field acquisition is directly influenced by the quality of a carrier wave communication module in the actual use process, and the practical and reliable carrier wave module detection method can practically solve the judgment of the quality of the carrier wave module in the field operation and maintenance process and solve the waste loss caused by field wild replacement of a new module.
Disclosure of Invention
The invention aims to provide a simple carrier module detection method based on an inversion technology and a split-phase detection technology, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a simple detection method of a carrier module based on an inversion technology and a split-phase detection technology adopts a micro inverter with loading capability, and a carrier signal can be loaded on an alternating current signal through the micro inverter to be transmitted, and the method specifically comprises the following operation steps:
s1: detecting the phase A, connecting a current signal with the micro inverter by using a wire clamp, connecting an I + terminal of the micro inverter with the phase A in the three-phase line, connecting an I-terminal of the micro inverter with the phase N in the three-phase line, starting the micro inverter to send a carrier signal, and starting detection;
s2: b phase detection, after A phase detection is finished, switching an I + terminal of the micro inverter to be connected with a B phase line in the three phase lines, keeping the I-terminal of the micro inverter connected with an N phase line in the three phase lines, and starting detection;
s3: c phase detection, after B phase detection is finished, switching an I + terminal of the micro inverter to be connected with a C phase line in the three phase lines, keeping the I-terminal of the micro inverter connected with an N phase line in the three phase lines, and starting detection;
s4: and respectively collecting carrier data signals of the A phase detection, the B phase detection and the C phase detection, and judging whether the three-phase concentrator or the three-phase carrier meter is damaged.
Preferably, the micro-inverter generates a 50Hz sinusoidal AC 100V with an AC signal of less than 1W, and the micro-inverter has a small volume and can be used as a functional module of a handheld device.
Preferably, the I + terminal is an ac signal current outgoing terminal, and the I-terminal is an ac signal current incoming terminal.
Preferably, the statistical data of the three-phase concentrator or the three-phase carrier meter is observed before detection, the statistical data of the three-phase concentrator or the three-phase carrier meter is observed again after the detection is started, and the data before and after the detection are compared, if the data are different, the three-phase concentrator or the three-phase carrier meter is normal, and if the data detected by a certain phase are not different, the item is damaged.
The invention has the technical effects and advantages that:
the invention generates the current frequency same as that of a three-phase circuit through the micro inverter, loads the carrier signal on the alternating current signal and transmits the carrier signal, and can realize whether each phase of the three-phase concentrator or the three-phase carrier meter is damaged or not under the condition of no three-phase alternating current by comparing the statistical data of the three-phase concentrator or the three-phase carrier before and after detection and combining a split-phase detection technology.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A simple detection method of a carrier module based on an inversion technology and a split-phase detection technology adopts a micro inverter with loading capability, and a carrier signal can be loaded on an alternating current signal through the micro inverter to be transmitted, and the method specifically comprises the following operation steps:
s1: detecting the phase A, connecting a current signal with the micro inverter by using a wire clamp, connecting an I + terminal of the micro inverter with the phase A in the three-phase line, connecting an I-terminal of the micro inverter with the phase N in the three-phase line, starting the micro inverter to send a carrier signal, and starting detection;
s2: b phase detection, after A phase detection is finished, switching an I + terminal of the micro inverter to be connected with a B phase line in the three phase lines, keeping the I-terminal of the micro inverter connected with an N phase line in the three phase lines, and starting detection;
s3: c phase detection, after B phase detection is finished, switching an I + terminal of the micro inverter to be connected with a C phase line in the three phase lines, keeping the I-terminal of the micro inverter connected with an N phase line in the three phase lines, and starting detection;
s4: and respectively collecting carrier data signals of the A phase detection, the B phase detection and the C phase detection, and judging whether the three-phase concentrator or the three-phase carrier meter is damaged.
The micro inverter generates a 50Hz sine alternating current of 100V and carries an alternating signal with the load less than 1W, has small volume and can be used as a functional module of handheld equipment.
The I + terminal is an alternating current signal current outflow end, and the I-terminal is an alternating current signal current inflow end.
And observing the statistical data of the three-phase concentrator or the three-phase carrier meter before detection, observing the statistical data of the three-phase concentrator or the three-phase carrier meter again after the detection is started, and comparing the data before and after the detection, wherein if the data is different, the three-phase concentrator or the three-phase carrier meter is normal, and if the data detected by a certain phase is not different, the item is damaged.
The invention generates the current frequency same as that of a three-phase circuit through the micro inverter, loads the carrier signal on the alternating current signal and transmits the carrier signal, and can realize whether each phase of the three-phase concentrator or the three-phase carrier meter is damaged or not under the condition of no three-phase alternating current by comparing the statistical data of the three-phase concentrator or the three-phase carrier before and after detection and combining a split-phase detection technology.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. A simple detection method of a carrier module based on an inversion technology and a split-phase detection technology adopts a micro inverter with loading capability, and a carrier signal can be loaded on an alternating current signal through the micro inverter to be transmitted, and is characterized in that: the method specifically comprises the following operation steps:
s1: detecting the phase A, connecting a current signal with the micro inverter by using a wire clamp, connecting an I + terminal of the micro inverter with the phase A in the three-phase line, connecting an I-terminal of the micro inverter with the phase N in the three-phase line, starting the micro inverter to send a carrier signal, and starting detection;
s2: b phase detection, after A phase detection is finished, switching an I + terminal of the micro inverter to be connected with a B phase line in the three phase lines, keeping the I-terminal of the micro inverter connected with an N phase line in the three phase lines, and starting detection;
s3: c phase detection, after B phase detection is finished, switching an I + terminal of the micro inverter to be connected with a C phase line in the three phase lines, keeping the I-terminal of the micro inverter connected with an N phase line in the three phase lines, and starting detection;
s4: and respectively collecting carrier data signals of the A phase detection, the B phase detection and the C phase detection, and judging whether the three-phase concentrator or the three-phase carrier meter is damaged.
2. The simple detection method for the carrier module based on the inversion technique and the split-phase detection technique according to claim 1, characterized in that: the micro inverter generates a 50Hz sine alternating current of 100V and carries an alternating signal with the load less than 1W, has small volume and can be used as a functional module of handheld equipment.
3. The simple detection method for the carrier module based on the inversion technique and the split-phase detection technique according to claim 1, characterized in that: the I + terminal is an alternating current signal current outflow end, and the I-terminal is an alternating current signal current inflow end.
4. The simple detection method for the carrier module based on the inversion technique and the split-phase detection technique according to claim 1, characterized in that: and observing the statistical data of the three-phase concentrator or the three-phase carrier meter before detection, observing the statistical data of the three-phase concentrator or the three-phase carrier meter again after the detection is started, and comparing the data before and after the detection, wherein if the data is different, the three-phase concentrator or the three-phase carrier meter is normal, and if the data detected by a certain phase is not different, the item is damaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559149.6A CN112147560A (en) | 2019-06-26 | 2019-06-26 | Simple carrier module detection method based on inversion technology and split-phase detection technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910559149.6A CN112147560A (en) | 2019-06-26 | 2019-06-26 | Simple carrier module detection method based on inversion technology and split-phase detection technology |
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| CN112147560A true CN112147560A (en) | 2020-12-29 |
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| CN201910559149.6A Pending CN112147560A (en) | 2019-06-26 | 2019-06-26 | Simple carrier module detection method based on inversion technology and split-phase detection technology |
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Citations (7)
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| CN101900801A (en) * | 2010-07-15 | 2010-12-01 | 田卫华 | Intelligent electric energy meter field test device and test method thereof |
| CN103091624A (en) * | 2013-01-18 | 2013-05-08 | 宁波三星电气股份有限公司 | Test method based on final circular test (FCT) multi-station test device |
| CN105866726A (en) * | 2016-06-06 | 2016-08-17 | 哈尔滨电工仪表研究所 | Portable assessment device based on reliable data of electric energy meter |
| CN105897306A (en) * | 2016-05-19 | 2016-08-24 | 江苏通灵电器股份有限公司 | Composite communication system and composite communication mode of micro inverter based on PLC/ZigBee (Power Line Carrier/ZigBee) |
| CN206149266U (en) * | 2016-11-24 | 2017-05-03 | 江苏通灵电器股份有限公司 | Power line carrier communication system based on micro inverter |
| CN106772206A (en) * | 2016-12-26 | 2017-05-31 | 国网冀北电力有限公司张家口供电公司 | Portable carrier module detector |
| CN107356897A (en) * | 2017-07-20 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | Carrier electric energy meter detecting system and detection method |
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2019
- 2019-06-26 CN CN201910559149.6A patent/CN112147560A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900801A (en) * | 2010-07-15 | 2010-12-01 | 田卫华 | Intelligent electric energy meter field test device and test method thereof |
| CN103091624A (en) * | 2013-01-18 | 2013-05-08 | 宁波三星电气股份有限公司 | Test method based on final circular test (FCT) multi-station test device |
| CN105897306A (en) * | 2016-05-19 | 2016-08-24 | 江苏通灵电器股份有限公司 | Composite communication system and composite communication mode of micro inverter based on PLC/ZigBee (Power Line Carrier/ZigBee) |
| CN105866726A (en) * | 2016-06-06 | 2016-08-17 | 哈尔滨电工仪表研究所 | Portable assessment device based on reliable data of electric energy meter |
| CN206149266U (en) * | 2016-11-24 | 2017-05-03 | 江苏通灵电器股份有限公司 | Power line carrier communication system based on micro inverter |
| CN106772206A (en) * | 2016-12-26 | 2017-05-31 | 国网冀北电力有限公司张家口供电公司 | Portable carrier module detector |
| CN107356897A (en) * | 2017-07-20 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | Carrier electric energy meter detecting system and detection method |
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