Power distribution network stability evaluation system and method, terminal equipment and readable storage medium
A distribution network and stability technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of reducing the accuracy of state evaluation, increasing the workload of calculation, increasing the range of state evaluation of distribution network, etc., to achieve the goal of power distribution The effect of network structure simplification
Active Publication Date: 2021-06-11
STATE GRID BEIJING ELECTRIC POWER +1
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The method of adding pseudo-measurements helps to increase the range of state assessment of the distribution network, but increases the computational workload and easily reduces the accuracy of state assessment
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[0043] 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 and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0044] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The invention discloses a power distribution network stability evaluation system and method, terminal equipment and a readable storage medium. The power distribution network stability evaluation method comprises the steps of: calling a power distribution network frame model of a to-be-analyzed region from a power system, and acquiring an existing power distribution network topological structure; extracting all equipment information of a to-be-analyzed regional power distribution network; traversing all element information of the to-be-analyzed region and determining key elements; carrying out elastic topology reduction on all non-key elements by adopting a topology reduction method based on the key elements to obtain a simplified topology network; carrying out power distribution network load flow calculation by adopting a PQ decomposition method; and according to the node voltage and power flow distribution condition, analyzing the voltage and load condition of a power distribution network node after the new load is accessed, thereby mastering the reliability condition of the power distribution network after the new load is accessed. According to the power distribution network stability evaluation system and the method, a power distribution network framework diagram in the power system is fully utilized, elastic and precise reduction is carried out on the basis of an original power distribution network topology, the structure of the power distribution network is greatly simplified, and meanwhile, a power distribution network visualization technology can be developed on the basis.
Description
technical field [0001] The invention belongs to the technical field of distribution network stability evaluation, and relates to a distribution network stability evaluation system, method, terminal equipment and readable storage medium. Background technique [0002] During the operation of the distribution network, it is easy for loads to enter or exit the nodes of the distribution network, which changes the topology of the distribution network and the power flow of the distribution network changes, so it is necessary to efficiently evaluate the operating status of the distribution network. Especially when a large new load is connected to the nodes of the distribution network, it is easy to cause insufficient local power supply, voltage drop, etc., which affect the reliable and efficient operation of the distribution network. [0003] Current main technology: new load access reliability analysis, involving distribution network status evaluation. The current distribution net...
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CPCH02J3/00H02J2203/20
Inventor 肖万芳刘博文贾东强韩学森马经纬高高黄赫
Owner STATE GRID BEIJING ELECTRIC POWER
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