Electric energy metering automation simulation laboratory

Abstract

The invention provides an electric energy metering automation simulation laboratory which is used for experimenting, researching and producing an electric energy metering meter or evaluating the running capability of a traditional electric energy meter. A mode of simulating a true power utilization environment is adopted, an actual power utilization site environment is reproduced by using the modes of an interference signal source, a lightning stroke surge signal source, three-phase independent impedance simulation, the true access of an electric appliance and the like, the interference noiseof a power utilization network is recorded by a real-time frequency spectrum and waveform recording system, the running conditions of an electric energy metering device and a remote meter reading system under various power utilization environments are also observed, recorded and calculated, the obtained mass data are analyzed, and the relevant performance parameters of the electric energy metering device and a remote electric energy data collection system are summarized so as to obtain concrete quantitative data and provide a data support for constructing a relevant standard.

Description

Technical field [0001] The invention is an electric energy measurement automation simulation laboratory used in the electric power industry for experiments, research, and production of electric energy meters or for evaluating the operation capability of existing electric energy meters. Background technique [0002] Under the background that the State Grid Corporation of China and China Southern Power Grid are fully promoting the construction of a strong smart grid characterized by informatization, digitization, automation and interaction, electric energy measurement has become the basic unit of data collection for the entire grid and the key to the success or failure of the construction of a smart grid Link: With the development of communication technology, a variety of communication technologies have become important communication means for electric energy metering devices and even become standard components. The addition of these communication functional components will more or ...

AI Technical Summary

Problems solved by technology

[0003] At present, the number of electric energy meters used by urban residents and rural households is huge, about 150 million. The two major power grid companies have plans to build electricity information collection systems in the next few years, but a large number of consumer electric energy meters are due to cost. Considering the quantity and quantity, the power line carrier and short-distance wireless will be mainly used as the means of communication, and the communication signal of the carrier energy meter is transmitted on the power supply line together. Communication signals have a serious impact, resulting in great differences in communication signal performance, and it is difficult to determine the probability and intensity of interference. Before the purchase of carrier meters and the construction of power collection systems, it is difficult for power supply departments to have a prior understanding of the operating environment of electric meters. It is to use the manufacturer's carrier wave energy meter and electric energy information acquisition system to carry out pilot operation first, evaluate the results after long-term operation, and then promote it. However, there is still a lack of measurement data for specific environmental interference signals, and in what environment the equipment Can work normally, under what kind of electrical conditions, the performance evaluation standard of the equipment partially or completely unable to work

When multiple suppliers provide electric energy meters and electric energy information collection systems, it is impossible to determine the performance of the products and systems. Whether it will work is still uncertain

How to collect and evaluate the frequency spectrum and intensity of electromagnetic interference signals in various power supply lines from the perspective of the electricity operating environment, and measure the anti-interference ability of the electric energy meters and electric energy information acquisition systems that have been built and are planned to be selected, still remains is a big problem

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