Multivariate heterogeneous data fusion method for panoramic power grid based on big data

Abstract

The present invention proposes an effective method based on big data to solve multiple heterogeneous data fusion of panoramic power grids, defines the communication protocols of conventional wide-area measurement systems, fault recorders, and light-duty wide-area measurement systems, and defines the respective measurement data formats and types ; Then decode the data frames monitored by the master station, efficiently extract, store, clean, and standardize the data in the memory, and manage large-scale heterogeneous data in a multi-machine distributed non-relational database; finally, in the underlying data interface Online analysis of big data and offline knowledge discovery. Beneficial effects of the present invention: the present invention unifies the three power grid monitoring systems under one platform framework for comprehensive analysis through large-scale heterogeneous data fusion, realizes panoramic dynamic behavior monitoring of multiple voltage levels of the power grid, and makes full use of existing equipment resources to reduce duplication At the same time of investment, the operation and control level of the power grid has been comprehensively improved.

Description

technical field [0001] The invention relates to the field of power system state monitoring, in particular to a multivariate heterogeneous data fusion method for a panoramic power grid based on big data. Background technique [0002] At present, my country is in a critical period of energy revolution and industrial transformation. It has become a national development strategy to greatly increase the proportion of new energy power generation to reduce the proportion of coal, and vigorously develop electric vehicles to reduce the proportion of oil use. Intermittent new energy grid connection increases the number of low-voltage grid power sources, and the dynamic behavior is more complex. According to the UHV power grid construction planning and deployment of the State Grid Corporation, the operation of multiple regional power grids will face a more complex operating environment such as UHV networking, multiple DC feed-in, large-scale access to new energy, and in-depth interacti...

AI Technical Summary

Problems solved by technology

At present, the above three power grid monitoring systems operate independently and do not give full play to their complementary advantages; however, the three systems all have GPS time stamps. If sufficient data integration is carried out, without a significant increase in hardware investment, it is possible to establish a network covering all parts of the power grid. The panoramic synchronous monitoring system of voltage level provides strong support for comprehensive monitoring, analysis and mastery of the dynamic process of the high and low side power grids

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