Undervoltage collection copy system detecting device based on virtual electric energy meter module

Abstract

The invention discloses a testing device for a low-voltage integrated metering system based on electric energy meter module and relates to product quality testing equipment for a low-voltage integrated metering system. The testing device of the invention comprises a concentrator (9), a collector (10), a triphase meter (11) and a single-phase meter (12) in a low-voltage integrated metering system; a PC machine (1), a digital signal source (2), a voltage powder amplifier (3), a current powder amplifier (4), a communication and verification switching circuit (5), a voltage switching circuit (6), an isolation-used current transformer switching circuit (7), an isolation-used voltage transformer switching circuit (8), and an external power supply (13). The invention adopts virtual electric energy meter technique to generate required electric energy meter history data, so as to remarkably shorten the testing time and improve the testing efficiency and performs integrated testing of the function and performance of the concentrator, the collector, the user electric energy meter and other equipment, resulting in a high cost performance. Therefore, the invention has extensive application prospects.

Description

technical field [0001] The invention relates to a product quality inspection device of a centralized meter reading system for low-voltage power users (referred to as a low-voltage centralized meter reading system), in particular to a detection device for a low-voltage centralized meter reading system based on a virtual electric energy meter module. Background technique [0002] The low-voltage centralized reading system is a network meter reading system that centrally reads the electric energy data and related power consumption information of multiple electric energy meters by the master station through a remote communication channel (public network channel), and can implement value-added services for power consumption management. The system is mainly composed of user electric energy meters, station area master meters, collectors, concentrators, local communication channels (between concentrators and collectors, user electric energy meters), remote communication channels (bet...

AI Technical Summary

Problems solved by technology

[0005] However, at present, due to the lack of detection devices for low-voltage centralized copying systems, and the lack of complete software and hardware testing methods, it is difficult to simulate various operating conditions on site, and it is impossible to conduct a comprehensive test on the functions and performance of each component of the low-voltage centralized copying system. The product quality hidden danger of the low-voltage centralized copying system directly restricts the promotion of the low-voltage centralized copying system

[0006] When conducting the conformance test of the uplink communication protocol of the concentrator, it is necessary to check the correctness of the historical data such as the daily and monthly power read by the concentrator, but the existing test methods are too time-consuming and cannot meet the needs of the work

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