A multi-source data modeling method for distribution network with d-pmu

Abstract

The invention relates to a multi-source data modeling method applicable to a distribution network containing a D-PMU, which belongs to the technical field of electric power engineering; the D-PMU is split into measurement value modules already existing in the CIM, and the equipment is connected to the measurement module The terminal modules and equipment modules at the end are sorted and classified, and the missing synchronous clock module, timekeeping module, and synchrophasor measurement module are added in the CIM. Correlate between modules, increase the relationship between equipment modules and terminal modules, terminal modules and measurement modules; establish distribution network measurement data acquisition systems D‑PMU, SCADA, fault filtering, metering Data, marketing data, GIS data, and photovoltaic models cover the integrated model of the distribution grid of "substation - 10kV feeder - distribution transformer - low voltage line - power customer". Provide a more complete data foundation for the advanced decision-making application of the smart grid, and realize the full informationization of the distribution network.

Description

technical field [0001] The invention relates to a multi-source data modeling method applicable to a distribution network containing a D-PMU, belonging to the technical field of electric power engineering. Background technique [0002] With the large-scale access of flexible loads such as distributed power sources and electric vehicles and the frequent interaction between users and the grid, the phenomenon of interweaving and integration of power sources and loads has appeared on the user side, and the trend of power electronics in the distribution network has become more obvious and the phase angle between nodes The difference is subtle, and the difficulty of distribution network data monitoring and decision-making control is increasing. The emergence of micro-synchronized phasor measurement unit (D-PMU) with chip, low cost, high precision and high sampling rate can collect phasor data with time scale of distribution network, which better solves the problem of distribution n...

AI Technical Summary

Problems solved by technology

However, most of the power information is only oriented to the needs of a certain department, which often leads to poor data sharing, low system integration, and multiple information "islands", which brings difficulties to information sharing, and causes repeated construction and waste of funds.

The main reason for this state is the lack of data standardization specifications that require data consistency, accuracy and timeliness

[0004] Unified data specification is the key to data sharing of distribution network. Data information interaction covers D-PMU, GIS system, photovoltaic system, distribution automation system, etc. At present, CIM of distribution network is not perfect, and relevant models are lacking, and some information is in the current There is no corresponding description in some CIMs, and new classes need to be added to supplement

Images