Power system dynamic reactive power compensation method, device, equipment and storage medium
A technology of power system and compensation method, which is applied in the direction of reactive power compensation, reactive power adjustment/elimination/compensation, circuit devices, etc., can solve problems such as large amount of calculation, low efficiency, and inability to find the best compensation location, and achieve fast The effect of compensating capacity and improving optimization efficiency
Active Publication Date: 2021-01-19
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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[0005] Embodiments of the present invention provide a dynamic reactive power compensation method, device, equipment, and storage medium in a power system, which can effectively solve the problems in the prior art that the optimal compensation location cannot be found, and the compensation capacity optimization process has a large amount of calculation and low efficiency.
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[0040] 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 creative efforts fall within the protection scope of the present invention.
[0041] see figure 1 , is a schematic flowchart of a method for dynamic reactive power compensation in a power system provided by an embodiment of the present invention.
[0042] A dynamic reactive power compensation method for a power system provided by an embodiment of the present invention includes:
[0043] S10, partitioning the preset power system to form several sub-regions.
[0044] Specifically, according to the electrical distance, the existing clustering a...
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The invention discloses a method for dynamic reactive power compensation of a power system, comprising: dividing the power system into several sub-regions; screening out the violation nodes in the sub-regions according to the upper boundary of the voltage safety constraint and the lower boundary of the voltage safety constraint; and calculating the track of the violation node Sensitivity index, and select the two most sensitive violation nodes as candidate compensation points; take the sub-regional power system voltage as a constraint, estimate the minimum compensation capacity of the candidate compensation points, and select the candidate compensation points corresponding to the minimum compensation capacity of each sub-region As the reactive power compensation point of each sub-area; the compensation capacity of the reactive power compensation point is estimated as the initial value, and the transient voltage of all nodes in the power system meets the requirements as constraints to optimize the power system compensation capacity. The embodiment of the present invention also provides a dynamic reactive power compensation device, equipment and storage medium for a power system, which solves the problems in the prior art that the best compensation location cannot be found, and the compensation capacity optimization process has a large amount of calculation and low efficiency.
Description
technical field [0001] The present invention relates to the technical field of power systems, in particular to a method, device, equipment and storage medium for dynamic reactive power compensation in power systems. Background technique [0002] Dynamic reactive power compensation is the main means to improve the transient voltage stability of power system. Compared with traditional switching reactive power compensation devices, dynamic reactive power compensation equipment such as SVC and STATCOM have faster response speed and better compensation effect. [0003] Dynamic reactive power programming is a typical mixed integer programming problem, which needs to solve two problems: 1) selection of compensation location; 2) optimization of compensation capacity. Due to the large solution space of this problem, the industry often adopts a two-step method, namely: first determine the compensation position, and then optimize the compensation capacity. [0004] When determining t...
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IPC IPC(8): H02J3/18
CPCH02J3/1871H02J2203/20Y02E40/30
Inventor 周保荣毛晓明朱炜锋
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD