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Control method and device for bus bar voltage in micro grid simulation system

A bus voltage and control method technology, applied in the field of microgrid, can solve problems such as inability to guarantee bus voltage stability control, load failure, etc.

Pending Publication Date: 2019-04-19
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this control method can only control the stability of the bus voltage floating within the normal range. When the floating value of the bus voltage exceeds the normal range, the droop control strategy cannot guarantee the stability control of the bus voltage. Easily lead to failure of loads in the microgrid system

Method used

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  • Control method and device for bus bar voltage in micro grid simulation system
  • Control method and device for bus bar voltage in micro grid simulation system
  • Control method and device for bus bar voltage in micro grid simulation system

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0060] The embodiment of the invention discloses a control method, device and equipment for the bus voltage in the microgrid simulation system. When the floating value of the bus voltage exceeds the normal range, the stability control of the bus voltage is carried out to avoid the microgrid system The load in the load fails.

[0061] See figure 1 , figure 1 It is a schematic flowchart of a control method for bus voltage in a microgrid system disclosed in the...

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Abstract

The invention discloses a control method for bus voltage in a micro grid system. After continuously collecting voltage signals of the bus voltage in the micro grid system, the collected sampling datais analyzed by a predefined rule to determine a distortion point in the sampling data. The bus voltage of the distortion point is the first abnormal bus voltage exceeding the normal floating range, and the first difference value between the first abnormal bus voltage and a standard bus voltage is calculated, so voltage corresponding to the first difference value can be provided for the bus of themicro grid system. When the floating value of the bus voltage exceeds the normal range, the stability control of the bus voltage is performed, so a load failure in the micro grid system is avoided. Inaddition, the present invention also discloses a control device and apparatus with the above effects for a bus voltage in the micro grid system.

Description

technical field [0001] The invention relates to the field of micro-grid technology, in particular to a control method, device and equipment for bus voltage in a micro-grid simulation system. Background technique [0002] With the development of the industrial revolution, modern technology requires more and more energy. The extensive use of fossil energy will cause serious pollution to the environment. Therefore, in order to meet the energy needs of various industries and avoid environmental pollution, it is necessary to develop green new energy instead of traditional fossil energy to solve the growing energy problem. need. [0003] In the micro-grid system, most of the energy is supplied by distributed energy sources, and weather, temperature, etc. have a greater impact on distributed energy sources. When distributed energy sources are affected, the power quality of the entire micro-grid system will deteriorate. The bus voltage in the grid system will also become unstable....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/12H02J3/38
CPCH02J3/12H02J3/381H02J3/388H02J2203/20
Inventor 赵文军谢云
Owner GUANGDONG UNIV OF TECH
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