Patent
Transformer area phase identification method based on synchronous sampling of concentrator and electricity meter
Ru Liming,Wang Peihui +1 more
TLDR
In this article, a transformer area phase identification method based on synchronous sampling of a concentrator and an electricity meter is proposed, where the concentrator is synchronized with a collector, and the collector does not include time delay almost.Abstract:
The invention relates to a transformer area phase identification method based on synchronous sampling of a concentrator and an electricity meter. The concentrator is synchronized with a collector, theconcentrator and the collector do not include time delay almost, and thus, after that the concentrator issues an ordered sampling instruction to the collector, the concentrator and the collector start data collection in the same ordered sampling time point, and the accuracy of the transformer area phase identification is improved; three-phase voltage data, collected by the concentrator, of a master meter of a transformer area and voltage data, obtained by the concentrator from the collector, of the single-phase electricity meter are processed to obtain standard deviations of the voltage of the single-phase electricity meter relative to phases of voltages of the master meter of the transformer area, and the phase connected to the single-phase electricity meter is determined according to whether voltage fluctuation curves between the single-phase electricity meter and the three phases of the master meter of the transformer area are similar on the basis of the three standard deviations.The phase identification rate of the single-phase electricity meter in the transformer area can be improved.read more
Citations
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Patent
Multi-meter-position meter case electric energy meter phase identifying method and system based on data correlation
Shao Zhimin,Li Lisheng,Zhang Shidong,Zhang Linli,Zhang Bingliang,Zhang Duqing,Sun Yong,Fan Di,Liu Hejin,Liu Yang,Leng Chuntian,Wang Zeyuan,Wang Feng,Su Guoqiang +13 more
TL;DR: In this paper, a multi-meter position meter case electric energy meter phase identification method based on data correlation is proposed, which includes the steps: enabling a meter case monitoring unit to be powered on, comparing similarity of acquired voltage of a single-phase energy meter and three-phase voltage, and determining a belonging phase of the single phase energy meter according to most similar voltage; normally running the meter case monitor unit, continuously comparing change trend of an acquired multi-group single-group energy meter voltage value and three phase voltage and correcting the belonging phase according to the most similar change
Patent
Station area phase identification method based on association degree
Wang Peihui,Zou Lianming +1 more
TL;DR: In this article, the association degree between the voltage of any single-phase electricity meter in the station area and the three-phase voltage of a total meter is calculated, and the phase voltage of the total meter corresponding to the maximum correlation degree among all the correlation degrees obtained is used as thevoltage connected to a single phase electric meter.
Patent
Courts phase identification method based on linear regression processing
Wang Peihui,Cai Jun +1 more
TL;DR: In this article, the authors proposed a linear regression processing method to identify the voltage level connected to each single-phase electricity meter in the courts by upgrading a program designed based on the scheme without changing the existing courts.
Patent
Zone area camera recognition method
Xu Qing,Huang Qifeng,Zhao Shuangshuang,Tian Zhengqi,Liu Jian,Duan Meimei,Xia Guofang,Ouyang Zengkai,Zhou Chao,Zhu Yunan,Gong Dan +10 more
TL;DR: In this paper, a zone area camera recognition method was proposed, which comprises the following steps: correspondingly obtaining a general ammeter three-phase voltage data change tendency sequence and a single-phase ammeter voltage data data changing tendency sequence after acquiring the collected threephase voltage real value set of the total ammeter and the voltage data actual value set selected any single phase ammeter, and then obtaining a change tendency goodness of fit sequence for representing the change consistency of each ammeter.
Patent
Phase recognition method and device for residential single-phase electric energy meter and computer device
TL;DR: In this paper, a phase recognition method and device for a residential single-phase electric energy meter and a computer device is presented, which includes acquiring the single phase change instantaneous power of a single phase electric meter; acquiring three phase instantaneous powers of a three phase electric energy meters of the courts according to a power collection time of the singlephase change instantaneous powers; identifying three-phase power variation parameters of the threephase instantaneous powers and identifying single phase power variations parameters ofthe single phase variation instantaneous power; and determining a mounting phase of the residential singlephase electric meter at the three phase
References
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Patent
Electric energy meter phase identification method
Long Xianglin,Zhang Enyou,Ma Yiping,Jiang Weiping,Zhang Chuan,Liu Xiufeng,Yao Xiaofeng,Zhang Junqiang +7 more
TL;DR: In this paper, the phases A, B and C of a general meter in a transformer area are used as reference and correlation operation is carried out on the voltage values of a user electric energy meter at a plurality of moments.
Patent
Time setting system and time setting method in PLC-based electricity utilization information collecting system
TL;DR: In this article, the authors proposed a time setting system and a time-setting method in a PLC-based electricity utilization information collecting system, where the time setting service device, a collecting device and a concentrator are connected with the time-set service device and the collecting device through the PLC.
Patent
Transformer area recognition method and device
TL;DR: In this paper, the authors proposed a transformer area recognition method and device, and the method comprises the steps that a central coordinator enabled processed alternating current to be transmitted to a station STA; the station STA recognizes the number of the transformer area, to which the alternating current belongs, from the processed alternating currents.
Patent
Transformer district identification system and transformer district identification method thereof
TL;DR: In this paper, a transformer district identification system was proposed for intelligent meter reading technology, and the system consisted of a concentrator and a user meter based on carrier communication, and a transformer transformer identification instruction in communication connection with the concentrator.
Patent
Electronic transducer sampling synchronization method
TL;DR: In this article, an electronic transducer sampling synchronization method for intelligent substation sampling is presented. But the sampling time can be controlled through hardware, and the sampling interval or the sampling period can be adjusted randomly, thereby solving the problem of sampling synchronization without depending on software computation.