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Multi-user smart meter energy saving principle introduction

Views: 信息来源:山东科大中天电子有限公司 发布时间:2019/5/20 Secondary source of information: Shandong University of Science and Technology Zhongtian Electronics Co., Ltd.Release time: 2019/5/20
Multi-user smart meter is an electric energy metering device that relies on modern high-end smart technology and excellent information automation technology. It not only has the basic metering function of traditional meters, but also has a variety of other functions, such as user monitoring, Position communication, power stealing control, etc., the application of multi-user smart meters in the power system has completed the power measurement, environmental protection measurement, and improved the measurement efficiency and accuracy.
       当标定电流范围为5~400%时,其计量误差到达-2~+2%, 随着智能化技术的开展以及计量技术等的进步,使得多用户智能电表的计量误差进一步减小。 When the calibration current range of the multi-user smart meter is 5 ~ 400%, its measurement error reaches -2 ~ + 2%. With the development of intelligent technology and the advancement of metering technology, the measurement error of multi-user smart meters has been further reduced small. However, the inductive watt-hour meter has certain disadvantages and shortcomings in practice, and is prone to wear, which makes the measurement error larger. After scientific investigation, it appears that the inductive watt-hour meter will gradually increase its error with the extension of its operating time. Large, deviation from the regular value, which affects the accuracy of the measurement.
       Multi-user smart meters benefit from the support of modern communication technology, computer technology, network technology, etc., can play the functions of electricity cost measurement, power measurement, information communication and other functions, and can establish an automated service relationship with electricity customers, based on the customer's electricity costs Recharge and balance of electricity charges to perform related power supply and power off operations can also reach the remote management and control of users, thereby completing multiple functions of multi-user smart meters.
       Based on its intelligent characteristics and advantages, multi-user smart meters have their own operating principles: collect and collect the voltage and current used by the user, and at the same time, properly handle the sampled voltage signals and current signals with the help of specific energy meter integrated circuits , Convert it to a higher level, form a pulse output signal that has a positive correlation with electrical energy, and then rely on a single-chip computer to handle this information.

       Adjust the pulse and display the corresponding customer power consumption. The measurement accuracy of multi-user smart meters is largely affected by the pulse constant. The number of pulses is related to the A / D converter. Therefore, the one-to-one principle is used to properly serve the A / D converter. Multi-user smart meter.


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