A statcom configuration planning method, device and equipment

Abstract

The invention discloses a STATCOM configuration planning method, which obtains short-term voltage instability fault sets of the power grid by scanning weak areas of the power grid, thereby establishing a STATCOM fixed-point and constant-capacity mixed integer programming model of the power grid. By introducing a corresponding decision-making substitution variable for each preset installation node of the mixed integer programming model, and convexizing the mixed integer programming model, and then relaxing the decision-making substitution variable to a continuous value interval, we finally get Continuous optimization model. By solving the continuous optimization model, when all the decision-making substitution variables meet the binary conditions, the configuration planning results of STATCOM are output. The present invention also discloses the corresponding planning device and equipment. By adopting the technical means of the embodiment of the present invention, the planning of the installation nodes and installation capacity of STATCOM can be considered uniformly, and the overall optimal configuration planning result of the installation nodes and installation capacity of STATCOM can be obtained. It effectively saves the economic cost of configuring STATCOM and improves the efficiency of configuration planning.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a STATCOM configuration planning method, device and equipment. Background technique [0002] With the rapid development of power technology and the improvement of users' living standards, many new electrical appliances appear in thousands of households, which put forward higher requirements for power supply safety and power supply quality. During the operation of the power system, if a serious three-phase short-circuit fault occurs, it is necessary to quickly remove the fault and restore the power supply at the normal voltage level to ensure the power demand of users. By installing a certain number and capacity of STATCOMs on the load side, after the fault is cleared, it can provide sufficient reactive power and restore the stability of the grid voltage, improve the quality of grid power supply, avoid long-distance transmission of reactive power, and reduce the overall po...

AI Technical Summary

Problems solved by technology

However, in the process of implementing the present invention, the inventors found that the prior art has at least the following problems: the fixed-point and constant-volume programming of STATCOM is a mixed integer programming problem, and the configuration planning method of the prior art completely separates the fixed-point and constant-volume programming of STATCOM It turns out that fixed-point and constant-volume planning cannot be considered as a whole, and the effect of configuring STATCOM is not good.

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