IEC61850-based distributed photovoltaic cluster dynamic modeling method

Abstract

The invention discloses an IEC61850-based distributed photovoltaic cluster dynamic modeling method. The method is characterized by comprising the following steps of: 1) establishing a distributed photovoltaic unit model on the basis of an IEC61850 standard modeling method; 2) carrying out cluster dynamic division on all the photovoltaic units in an area according to different regulation targets; and 3) aggregating an IEC61850-based photovoltaic unit layer information model according to the distributed photovoltaic cluster division result, and importing a cluster regulation ability and a topological structure logic node to establish a final photovoltaic cluster information model. The method is capable of achieving the beneficial effects of dynamically selecting distributed photovoltaic stations which participate in clusters according to different regulation functions, carrying out standard modeling on the clusters by combining characteristics of IEC61850, completing the efficient communication between the clusters, realizing the stable operation of photovoltaic power supplies and ensuring the safe control of distributed photovoltaic.

Description

technical field [0001] The invention relates to a dynamic modeling method of a distributed photovoltaic cluster based on IEC61850, and belongs to the technical field of distributed intelligent micro-grids. Background technique [0002] In recent years, with the increasingly serious problems of global energy shortage, environmental pollution and climate deterioration, vigorously developing renewable energy has become an important energy strategy for our country. The large-scale distributed photovoltaic power access poses a challenge to the safe and reliable operation of the future power grid, which will have a major impact on the security, stability and economic operation of the local power grid. Therefore, in order to promote the further development of distributed power and ensure the safe and stable operation of the entire network, it is necessary to effectively manage and control distributed power. Run monitoring schedules. [0003] The traditional way is to use the mode...

AI Technical Summary

Problems solved by technology

[0003] The traditional method is to use the mode of direct control of all distributed photovoltaics in the region by grid dispatching, which has high requirements for distribution network dispatching system and communication, poor economy and general control effect

At present, only a small number of medium-voltage access distributed photovoltaics can be monitored and dispatched, and distribution network scheduling has not yet formed a dedicated control function for distributed photovoltaic applications.

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