IEC61850-based distributed photovoltaic cluster dynamic modeling method

A distributed photovoltaic and dynamic modeling technology, applied in photovoltaic power generation, system integration technology, character and pattern recognition, etc., can solve problems such as poor economy, general control effect, high distribution network scheduling system and communication requirements, etc., to achieve high efficiency Communication, achieve stable operation, and ensure the effect of safety management and control

Inactive Publication Date: 2017-11-17
NARI TECH CO LTD +4
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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 co

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  • IEC61850-based distributed photovoltaic cluster dynamic modeling method
  • IEC61850-based distributed photovoltaic cluster dynamic modeling method
  • IEC61850-based distributed photovoltaic cluster dynamic modeling method

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specific example

[0047] Based on the IEC61850 standard combined with the actual distributed photovoltaic system analysis, select the appropriate distributed photovoltaic logic nodes and data content in IEC61850-7-4 and IEC61850-7-420, and arrange the correct position according to the information interaction relationship between them , each logical node represents a minimum functional unit to be realized by the photovoltaic system.

[0048] 12) Aggregate specific instances and corresponding operations obtained at the same level to form an information model at this level:

[0049] According to the functions and requirements of photovoltaic unit equipment, 7 logical devices are established in the distributed photovoltaic system server, including photovoltaic electrical connection point logic equipment, photovoltaic unit controller logic equipment, photovoltaic power generation logic equipment, and AC-DC converter logic equipment , battery system logic device, physical measurement logic device and...

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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...

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Application Information

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IPC IPC(8): G06F17/50G06K9/62G06Q50/06H02J3/38H02J13/00
CPCH02J3/383H02J13/00G06Q50/06G06F30/20H02J2203/20G06F18/231Y04S10/123Y04S10/16Y04S40/128Y02E10/56Y02E40/70Y02E60/00Y04S10/50
Inventor 赵景涛余涛谢虎杨文祝进王海龙付明宋金燕贾玮陈于扬
Owner NARI TECH CO LTD
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