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Reactive power grid coordination control method and device

A coordinated control and power grid technology, applied in the electric power field, achieves the effect of multi-time scale reactive power rolling correction

Active Publication Date: 2014-09-10
CHINA AGRI UNIV
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Problems solved by technology

[0003] A large number of distributed power generation will make the voltage and reactive power control of the distribution network face severe challenges

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  • Reactive power grid coordination control method and device
  • Reactive power grid coordination control method and device
  • Reactive power grid coordination control method and device

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Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] In the embodiment of the present invention, reactive power scheduling of the power grid is divided into three time scales. First of all, the 24-hour output value of each generator on the second day is determined and reported at 17:00 the previous day, and the output plan is made today. In the day-ahead plan, it is necessary to predict the wind speed and light in...

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Abstract

The invention discloses a reactive power grid coordination control method and a device. The method comprises the steps of determining a current reactive plan, performing short-time reactive correction on the current reactive plan, performing real-time reactive correction on the current reactive plan after the short-time reactive correction, and adopting different prediction methods, optimization objectives, optimization variables, time dimensions and calculation methods according to the characteristic of different time scales. The method comprises the steps of determining the current reactive plan, performing the short-time reactive correction on the current reactive plan, and performing the real-time reactive correction on the current reactive plan after the short-time reactive correction, so that multi-time-scale reactive rolling correction is achieved.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a reactive power coordination control method and device for a power grid. Background technique [0002] With the increasingly serious problems of energy depletion and environmental pollution, distributed power generation based on renewable energy has become the research focus and cutting-edge technology in the field of power engineering and energy. [0003] The massive access of distributed generation will make the voltage and reactive power control of the distribution network face severe challenges. The randomness of natural resources such as wind and light makes the active and reactive output of distributed power generation intermittent. The future distribution network must have the ability to absorb a large number of random fluctuations in distributed power output; Therefore, it is necessary to study the reactive power and voltage optimization control model based on different ti...

Claims

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Application Information

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IPC IPC(8): H02J3/18
CPCY02E40/30Y02E10/563Y02E10/56
Inventor 唐巍张璐耿光飞谭煌丛鹏伟
Owner CHINA AGRI UNIV
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