AU2019218021B2 - Non-intrusive load identification-based submetering smart electricity meter - Google Patents
Non-intrusive load identification-based submetering smart electricity meter Download PDFInfo
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- AU2019218021B2 AU2019218021B2 AU2019218021A AU2019218021A AU2019218021B2 AU 2019218021 B2 AU2019218021 B2 AU 2019218021B2 AU 2019218021 A AU2019218021 A AU 2019218021A AU 2019218021 A AU2019218021 A AU 2019218021A AU 2019218021 B2 AU2019218021 B2 AU 2019218021B2
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- load
- power meter
- load identification
- smart power
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- 230000005611 electricity Effects 0.000 title abstract 9
- 238000005070 sampling Methods 0.000 claims description 31
- 238000004364 calculation method Methods 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 9
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
Description
Claims (6)
- CLAIMS 1. A smart power meter based on non-intrusive load identification, comprising a non-intrusive load identification module integrated in the smart power meter, wherein: the non-intrusive load identification module is printed on a main circuit board of the smart power meter, or installed in a module placement chamber of the smart power meter and connected to the main circuit board by a connector; the non-intrusive load identification module comprises a signal input unit, a load identification and calculation unit, a load model library, and a communication unit and is configured to identify different types of loads installed indoors, to calculate a metering result for each load type, and to output the metering result; the signal input unit is connected to a metering chip voltage and current acquisition signal line on the main circuit board and configured to sample digital signals at a sampling frequency lower than 1 Khz, or connected to voltage and current analog signal lines at an incoming line terminal of the smart power meter and configured to sample analog signals at a sampling frequency in the range of1 kHz-OkHz; the load identification and calculation unit is connected to the signal input unit and configured to call the load model library and identify load types according to voltage and current signals received in real time, and to calculate a metering result of each load type; the load model library is configured to store feature models of known load types classified according to load characteristics of electric appliances, and is configured to be called by a load identification algorithm unit, wherein each feature model comprises a fixed identifier and operation characteristic information of the corresponding load type; and the communication unit is respectively connected to the load identification and calculation unit and the load model library, and is configured to output load type identification results of the load identification and calculation unit and metering results of each load type, wherein the output comprises on-site display and remote display, wherein the load identification and calculation unit is configured to call the load model library and identify load types according to the voltage and current signals received in real time by: step (A), extracting current sampling data in all acquisition periods within a current 2 minute time period, and performing Fourier decomposition to obtain the 1st-19th harmonic components in the current sampling data; step (B), respectively calculating differences between the 1st-1 9th harmonic components in the current sampling data and harmonic component feature values corresponding to the various types of loads in the load model library, and calculating a weighted sum value corresponding to each harmonic component; and step (C), selecting the smallest weighted sum value and a corresponding load type to complete the identification of the load type.
- 2. The smart power meter of claim 1, wherein the load identification and calculation unit isfurther configured to calculate the metering result of each load type by extracting, according tothe voltage and current signals received in real time, data required by said metering, wherein thedata comprises one or more of a current value, a voltage value, a start/stop time, a duration, astart/stop current, each harmonic, a current waveform, and a crest coefficient.
- 3. The smart power meter of claim 2, wherein the metering result of each load typecomprises a load start/stop time, a load operation duration, power consumption of the load, andload power of the load type, and wherein the power consumption of the load refers to the sum ofpower consumed by the type of loads or the power consumed within a certain time period.
- 4. The smart power meter of claim 1, wherein the load model library is configured to updateitself by adding new load types to the load model library.
- 5. The smart power meter of claim 1,being a single-phase smart power meter or athree-phase smart power meter.
- 6. The smart power meter of claim 1, wherein the non-intrusive load identification modulefurther comprises a power supply unit configured to provide a voltage for the non-intrusive loadidentification module.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810132483.9A CN108362938B (en) | 2018-02-09 | 2018-02-09 | Metering separate intelligent electric energy meter based on the identification of non-intrusion type load |
CN201810132483.9 | 2018-02-09 | ||
PCT/CN2019/072503 WO2019154050A1 (en) | 2018-02-09 | 2019-01-21 | Non-intrusive load identification-based submetering smart electricity meter |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2019218021A1 AU2019218021A1 (en) | 2020-10-01 |
AU2019218021B2 true AU2019218021B2 (en) | 2024-06-06 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2019218021A Active AU2019218021B2 (en) | 2018-02-09 | 2019-01-21 | Non-intrusive load identification-based submetering smart electricity meter |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN108362938B (en) |
AU (1) | AU2019218021B2 (en) |
GB (1) | GB2585588B (en) |
WO (1) | WO2019154050A1 (en) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108362938B (en) * | 2018-02-09 | 2019-10-22 | 国网江苏省电力有限公司电力科学研究院 | Metering separate intelligent electric energy meter based on the identification of non-intrusion type load |
CN109188040B (en) * | 2018-11-06 | 2021-09-07 | 浙江方大智控科技有限公司 | Multi-mode intelligent ammeter |
CN109188041B (en) * | 2018-11-06 | 2021-08-31 | 浙江方大智控科技有限公司 | Intelligent electric meter with electricity utilization control function |
CN109596917A (en) * | 2018-12-07 | 2019-04-09 | 江苏智臻能源科技有限公司 | A kind of non-load identification efficient detection method of registering one's residence |
CN110018344A (en) * | 2019-02-21 | 2019-07-16 | 国网山东省电力公司临沂供电公司 | The electric energy metering device for having identification power load function |
CN109870600B (en) * | 2019-04-04 | 2021-07-02 | 江苏林洋能源股份有限公司 | Non-invasive load identification method with self-learning capability and intelligent electric meter |
CN110297125A (en) * | 2019-06-12 | 2019-10-01 | 国网浙江省电力有限公司电力科学研究院 | A kind of intelligent electric energy meter having non-intrusion type load monitoring function |
CN110297137A (en) * | 2019-06-12 | 2019-10-01 | 国网浙江省电力有限公司电力科学研究院 | A kind of module having non-intrusion type load monitoring function |
CN110554351B (en) * | 2019-09-30 | 2022-03-29 | 国网山东省电力公司营销服务中心(计量中心) | Real load detection method and system of non-invasive load electric energy meter |
CN111009110A (en) * | 2019-11-28 | 2020-04-14 | 江苏智臻能源科技有限公司 | Method and hardware equipment for collecting load identification data of user electric meter |
CN111060745A (en) * | 2019-12-06 | 2020-04-24 | 江苏智臻能源科技有限公司 | Electric energy meter intelligent base with load identification function and implementation method |
CN111221288A (en) * | 2020-03-09 | 2020-06-02 | 浙江中新电力工程建设有限公司自动化分公司 | Information acquisition module based on non-invasive load identification technology and control method thereof |
CN111600380B (en) * | 2020-03-28 | 2023-10-13 | 青岛鼎信通讯股份有限公司 | Household transformer relation identification method based on variable load and constant current detection |
CN111934318B (en) * | 2020-08-13 | 2024-02-27 | 彭浩明 | Non-invasive power load decomposition method, apparatus, device and storage medium |
CN111965419A (en) * | 2020-08-25 | 2020-11-20 | 广东电网有限责任公司广州供电局 | Non-invasive measuring device for sampling and identifying distributed installation |
CN112383143A (en) * | 2020-10-29 | 2021-02-19 | 国网河南省电力公司郑州供电公司 | Power consumer power monitoring device and power load identification method |
CN112485516B (en) * | 2020-11-27 | 2024-04-05 | 杭州万高科技股份有限公司 | Electric energy meter and chip architecture for non-intervention load identification |
CN113009220B (en) * | 2021-02-23 | 2022-07-12 | 江苏盛德电子仪表有限公司 | Intelligent electric energy meter based on non-intrusive load identification technology |
CN113156202B (en) * | 2021-03-11 | 2023-08-29 | 国电南瑞科技股份有限公司 | Non-invasive identification method and device for charging of battery car based on harmonic wave and time characteristics |
CN113050486B (en) * | 2021-03-12 | 2022-06-17 | 南京工程学院 | Electric power system edge calculation and data distribution device based on industrial personal computer |
CN113030566A (en) * | 2021-03-30 | 2021-06-25 | 国网江苏省电力有限公司营销服务中心 | Single-phase non-home load identification module |
CN113030565B (en) * | 2021-04-01 | 2022-07-19 | 国网江苏省电力有限公司营销服务中心 | Load identification intelligent electric meter with input protection function |
CN113223287B (en) * | 2021-04-02 | 2022-05-24 | 国电南瑞南京控制系统有限公司 | SPI-based communication method and system for intelligent electric energy meter and load identification module |
CN113191600A (en) * | 2021-04-13 | 2021-07-30 | 清科优能(深圳)技术有限公司 | Intelligent house non-invasive load identification method based on data mining |
CN113238517A (en) * | 2021-06-08 | 2021-08-10 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Novel electric energy meter data acquisition terminal |
CN113341262A (en) * | 2021-07-13 | 2021-09-03 | 国网江苏省电力有限公司营销服务中心 | Platformization load data acquisition device |
CN114050846A (en) * | 2021-11-08 | 2022-02-15 | 国网四川省电力公司营销服务中心 | Non-invasive load monitoring system and method based on HPLC communication |
CN114640111B (en) * | 2022-03-31 | 2024-10-01 | 哈尔滨益达中能节能设备技术开发有限公司 | Load identification control system of power supply system |
CN114895085A (en) * | 2022-04-27 | 2022-08-12 | 威胜集团有限公司 | Three-phase electric energy meter circuit board structure |
CN115144633B (en) * | 2022-08-01 | 2023-11-14 | 广东电网有限责任公司广州供电局 | Modularized intelligent ammeter box |
CN116051910A (en) * | 2023-03-10 | 2023-05-02 | 深圳曼顿科技有限公司 | Non-invasive load identification method, device, terminal equipment and storage medium |
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---|---|---|---|---|
CN100464194C (en) * | 2007-04-03 | 2009-02-25 | 天津大学 | Method for recognizing dynamic parameter of electrical system non-invasive induction motor dynamic parameter |
WO2009140777A1 (en) * | 2008-05-23 | 2009-11-26 | Gloor Engineering | Power measuring device |
US20100305889A1 (en) * | 2009-05-27 | 2010-12-02 | General Electric Company | Non-intrusive appliance load identification using cascaded cognitive learning |
CN105186693A (en) * | 2015-09-28 | 2015-12-23 | 南方电网科学研究院有限责任公司 | Non-invasive electrical load identification system and method |
CN106093565B (en) * | 2016-08-05 | 2018-12-11 | 华南理工大学 | A kind of electricity subentry measurement method and device based on steady state characteristic Waveform Matching |
CN206223887U (en) * | 2016-11-10 | 2017-06-06 | 华北电力大学 | A kind of intelligent apparatus for possessing load identification function |
CN108362938B (en) * | 2018-02-09 | 2019-10-22 | 国网江苏省电力有限公司电力科学研究院 | Metering separate intelligent electric energy meter based on the identification of non-intrusion type load |
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2018
- 2018-02-09 CN CN201810132483.9A patent/CN108362938B/en active Active
-
2019
- 2019-01-21 AU AU2019218021A patent/AU2019218021B2/en active Active
- 2019-01-21 WO PCT/CN2019/072503 patent/WO2019154050A1/en active Application Filing
- 2019-01-21 GB GB2014179.2A patent/GB2585588B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN108362938A (en) | 2018-08-03 |
WO2019154050A1 (en) | 2019-08-15 |
AU2019218021A1 (en) | 2020-10-01 |
GB2585588B (en) | 2022-03-16 |
CN108362938B (en) | 2019-10-22 |
GB202014179D0 (en) | 2020-10-21 |
GB2585588A (en) | 2021-01-13 |
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Legal Events
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DA3 | Amendments made section 104 |
Free format text: THE NATURE OF THE AMENDMENT IS: AMEND THE NAME OF THE INVENTOR TO READ LIU, JIAN; ZHU, YUNAN; XU, QING; TIAN, ZHENGQI; DUAN, MEIMEI; HUANG, QIFENG; WU, WEIJIANG; ZHU, JUN AND CHEN, FEI |
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HB | Alteration of name in register |
Owner name: STATE GRID JIANGSU ELECTRIC POWER CO., LTD Free format text: FORMER NAME(S): STATE GRID JIANGSU ELECTRIC POWER RESEARCH INSTITUTE; STATE GRID CORPORATION OF CHINA; STATE GRID JIANGSU ELECTRIC POWER COMPANY ; JIANGSU ELECTRIC POWER RESEARCH INSTITUTE CO., LTD. Owner name: JIANGSU ELECTRIC POWER RESEARCH INSTITUTE CO., LTD. Free format text: FORMER NAME(S): STATE GRID JIANGSU ELECTRIC POWER RESEARCH INSTITUTE; STATE GRID CORPORATION OF CHINA; STATE GRID JIANGSU ELECTRIC POWER COMPANY ; JIANGSU ELECTRIC POWER RESEARCH INSTITUTE CO., LTD. Owner name: STATE GRID JIANGSU ELECTRIC POWER RESEARCH INSTITUTE Free format text: FORMER NAME(S): STATE GRID JIANGSU ELECTRIC POWER RESEARCH INSTITUTE; STATE GRID CORPORATION OF CHINA; STATE GRID JIANGSU ELECTRIC POWER COMPANY ; JIANGSU ELECTRIC POWER RESEARCH INSTITUTE CO., LTD. Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER NAME(S): STATE GRID JIANGSU ELECTRIC POWER RESEARCH INSTITUTE; STATE GRID CORPORATION OF CHINA; STATE GRID JIANGSU ELECTRIC POWER COMPANY ; JIANGSU ELECTRIC POWER RESEARCH INSTITUTE CO., LTD. |
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FGA | Letters patent sealed or granted (standard patent) |