D-PMU-including power distribution network multi-source data modeling method

Abstract

The present invention relates to a D-PMU-including power distribution network multi-source data modeling method, belonging to the technical field of electric power engineering. The D-PMU is divided into a measurement value module, a terminal module connecting the equipment to a measurement end and equipment module existing in CIM, and a synchronous clock module, a punctuality module and a synchronous phasor measurement module missing in the CIM are added after sorting and classification. The modules are associated, and the association between the equipment module and the terminal module and the association between the terminal module and the measurement module are added. A power distribution network measurement data acquisition system D-PMU, SCADA, fault filtering, measurement data, marketing data, GIS data and photovoltaic model is built, including a "substation-10kV feeder-distribution transformer-low voltage line-customer" power distribution grid integration model. The method provides a more perfect data foundation for the advanced decision-making application of a smart grid and realizes full informationization of the power 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

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