Method and device for planning grid-connected electrical distance of power electronic power supply

A power electronic power supply, electrical distance technology, applied in circuit devices, electrical components, AC network circuits, etc., to eliminate the risk of instability, meet application requirements, and achieve high accuracy

Active Publication Date: 2021-07-09
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical solution of the present invention provides a method and device for planning the grid-connected electrical distance of power electronic power sources to solve the problem of how to plan the grid-connected electrical distance of power electronic power sources

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  • Method and device for planning grid-connected electrical distance of power electronic power supply
  • Method and device for planning grid-connected electrical distance of power electronic power supply
  • Method and device for planning grid-connected electrical distance of power electronic power supply

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Embodiment Construction

[0049] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0050] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a method and a device for planning a grid-connected electrical distance of a power electronic power supply. The method comprises the following steps of calculating a static uniformity stability criterion USI2 of a power electronic power supply field station, determining the maximum access electrical distance of the planned power electronic power station based on the static uniformity stability criterion USI2 of the power electronic power station, calculating a dynamic uniformity stability criterion USI1 of the power electronic power station based on the maximum access electrical distance of the power electronic power station, judging whether the power electronic power station is safe and stable or not based on the dynamic uniformity stability criterion USI1 of the power electronic power station, and when the power electronic power station is judged to be safe and stable, determining the maximum access electrical distance as an access electrical safety distance.

Description

technical field [0001] The present invention relates to the technical field of high-ratio power electronic power systems, and more specifically, to a method and device for grid-connected electrical distance planning of power electronic power sources. Background technique [0002] With the increasing energy crisis, the renewable energy power generation business represented by power electronic power generation has entered a stage of rapid development. my country's new energy power generation resources and load centers are severely unevenly distributed in time and space. High-quality new energy power generation resources are concentrated in the western and northern regions, and important load centers are concentrated in the eastern coastal areas. Therefore, the development and construction of high-voltage, large-capacity DC transmission projects has become an important means to solve our country's resource dilemma. [0003] Most power electronic power sources are asynchronous ...

Claims

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Application Information

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IPC IPC(8): H02J3/38
CPCH02J3/381
Inventor 王一鸣高磊褚晓杰孙华东郭强宋瑞华
Owner CHINA ELECTRIC POWER RES INST
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