Research On Improving The Success Rate Of Power Consumption Information Collection

The construction of a system collecting data about electricity consumption among customers helps to promote the business in smart grid, achieve inspections of and control over the grid for power management, cut down power suppliers' administrative expenses, extend the useful life of equipment and assets, meet the needs for power among the customers, enhance services and interactions for the customers as well as raise the standard of services provided. In the process of construction, the success rate of collecting accurate information about power consumption is one of the key criteria for the system. However, due to noise and other factors on the information channel, the success rate is usually low. Hence, it is of significant meaning to study how to increase the success rate and ensure the stability and reliability while collecting the data.This paper proposes the use of signal booster, external communication modules, high-gain antenna, directional antenna and medium-voltage power-line communication (PLC) to tackle the problem of weak signal in the upstream while applying zero-crossing communication, wireless relay, and noise reduction to deal with the instability in downstream PLC. Meanwhile, this paper also introduces PLC modules that can distinguish zones automatically, identifying the zones with power overload so as to switch to low-voltage power lines accordingly. Since all the improvements are achieved by PLC chips, there is no need for external devices attached to the PLC meters, hence reducing the primary costs and enhancing the reliability.Furthermore, noise in the PLC transmission could severely damage the data collection process. Building on the basis of the current situation of data collection from power grids and characters of the noise, this paper suggests a noise reducer which curtails the interference from the noise and explains how it works. By making the reducer into a plug-and-play module and connecting it with the source of the noise in parallel, the influence of the noise can be effectively filtered out. The comparison between resultant waves in PLC before and after the implementation of the reducer on the actual power grid zones shows the feasibility of such reducers. These methods improve the success rate of power consumption information collection.