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Device and method for generating day-ahead reactive power dispatch of power distribution network containing wind/photovoltaic power generation

A technology for photovoltaic power generation and generation devices, applied in photovoltaic power generation, circuit devices, reactive power adjustment/elimination/compensation and other directions, can solve the problems of long time, complex actual lines are not applicable, and achieve optimality and savings The effect of computing time

Inactive Publication Date: 2015-05-06
STATE GRID CORP OF CHINA +2
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AI Technical Summary

Problems solved by technology

Most of the existing research focuses on reactive power optimization on the day-ahead time scale, but it takes a long time and is not applicable to complex actual lines

Method used

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  • Device and method for generating day-ahead reactive power dispatch of power distribution network containing wind/photovoltaic power generation
  • Device and method for generating day-ahead reactive power dispatch of power distribution network containing wind/photovoltaic power generation
  • Device and method for generating day-ahead reactive power dispatch of power distribution network containing wind/photovoltaic power generation

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Experimental program
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Embodiment Construction

[0024] Such as figure 1 As shown, this kind of generating device including wind / photovoltaic power generation and distribution network reactive power scheduling ahead of time, the device includes:

[0025] The off-line formation module of the scene optimization scheduling library is used to cluster and combine the historical data of wind power / photovoltaic power generation to form a scene set, and calculate the scheduling plan of each scene to form an optimized scene library;

[0026] The next day state pattern matching module is used to perform pattern matching according to the predicted 24-hour state of the next day to form a solution set of the next day's scheduling plan;

[0027] Capacitor switching scheme correction module, used to correct the capacitor switching scheme for 24 hours the next day;

[0028] The multi-attribute decision-making module is used to obtain the optimal plan and the suboptimal plan for the reference of dispatchers.

[0029] Preferably, the off-li...

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Abstract

The invention discloses a device for generating day-ahead reactive power dispatch of a power distribution network containing wind / photovoltaic power generation. The device comprises a scene optimization dispatching base off-line formation module for clustering and combining wind / photovoltaic power generation historical data to form a scene set and calculating the dispatching scheme of each scene to form an optimized scene base, a next-day state mode matching module for performing mode matching according to the predicted 24-hour state of the next day to form a next-day dispatching scheme solution set, a capacitor switching scheme correction module for correcting a next-day 24-hour capacitor switching scheme, and a multi-attribute decision-making module for obtaining the optimal scheme and a second-best scheme for the reference of the dispatching personnel. The invention also provides a method utilizing the device.

Description

technical field [0001] The invention belongs to the technical field of electric power system automation, and in particular relates to a generating device and method for day-ahead reactive power scheduling of distribution networks including wind power / photovoltaic power generation. Background technique [0002] Distributed power has the characteristics of inexhaustible, clean and pollution-free. As an effective supplement to centralized power generation, its access to the distribution network has become an inevitable trend. Therefore, distributed power based on renewable energy is widely used in various provinces. Municipal power grid companies have been vigorously developed, researched and demonstrated. Recent research literature shows that distributed power generation can not only provide active power, but also provide reactive power support for the system and participate in reactive power dispatching of distribution network. The size of its reactive power output depends on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18G06Q10/04G06Q50/06
CPCG06Q10/06312G06Q50/06H02J3/18H02J2203/20Y02E10/56Y02E40/30
Inventor 张科廖荣涛邹澄澄余铮徐焕查志勇王逸兮朱小军
Owner STATE GRID CORP OF CHINA
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