Precise speed control method for power grid based on virtual substation technology
A technology, a grid technology, applied in the field of precise speed control of the grid based on virtual substations, which can solve problems such as complex logic and long command execution time
Inactive Publication Date: 2019-05-24
国家电网公司东北分部 +1
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[0004] In view of this, the present disclosure proposes a precise speed control method for power grids based on virtual substation technology, through direct data communication between the control master station and the execution station, so that the power grid system is composed of the conventional "control master station-substation-execution station "The three-tier structure is converted into a point-to-point two-tier structure of "control master station-execution station", which achieves the purpose of simplifying the power grid system structure, thereby solving the problems of complex logic and long command execution time under the traditional three-tier structure, and realizing The purpose of precise speed control of the control object
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[0030] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
[0031] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.
[0032] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...
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The invention relates to a precise speed control method for a power grid based on the virtual substation technology. The method comprises the steps: receiving operation information collected by each execution station in a power grid system through a control main station, and judging the current state of the power grid system; determining a to-be-cut capacity and a control object of the power gridsystem in a current state according to a fault type and the operation information when it is judged that the current state of the power grid system is a fault state; sending a corresponding cutting command to each execution station after determining the to-be-cut capacity and the control object, so that each execution station executes the corresponding cutting operation according to the cutting command. Therefore, the power grid system is converted into a point-to-point two-layer structure of the control master station-the substation-the execution station from a conventional three-layer structure of the control master station-the substation-the execution station, and the purpose of simplifying the power grid system structure is achieved, thereby solving the problems that logic is complex and command execution time is long under a traditional three-layer structure, and achieving the purpose of precise speed control over the control object.
Description
technical field [0001] The present disclosure relates to the field of electric power technology, in particular to a method for precise speed control of a power grid based on a virtual substation. Background technique [0002] Conventional large-area interconnected grid stability control systems generally adopt a "layered and partitioned" approach to architecture design. Among them, layering refers to dividing the system into a three-layer structure of main station, sub-station and execution station according to the function setting; partitioning refers to dividing the system into multi area. Finally, the hierarchical and partitioned control of the power grid is realized through the coordinated actions of the various devices in the stability control system. Using the above-mentioned conventional power grid stability control system architecture, the division of control strategies is relatively clear. The master station mainly implements emergency control related to the regio...
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IPC IPC(8): H02J3/00H02H7/26
Inventor 夏德明张玉含王震宇娄霄楠阴宏民李劲君王克非段刚刘洋秦红霞侯凯元牛胜南宋阳雷瑞丰李泽宇谭士杰
Owner 国家电网公司东北分部