Selecting method of discrete reactive equipment based on weighting operation factors

Abstract

The invention relates to a selecting method of discrete reactive equipment based on weighting operation factors, belonging to the technical field of automatic voltage control of power systems. The method comprises the following steps of: quantizing various constraints for restricting the reactive equipment from being put into operation or cut off and effects for putting the reactive equipment into operation or cutting off the reactive equipment in a numerical way according to different importance, defining each equipment to have 7 operation factors, and calculating the corresponding intermediate variables of the values of the 7 operation factors and the corresponding weighting coefficient of each operation factor; summing by multiplying the calculated value of each operation factor by thecorresponding weighting coefficient, and finally selecting the equipment with a maximum weighting operation factor X as the discrete reactive equipment for realizing the control target. By selecting the equipment with the maximum weighting operation factor, the invention better realizes the optimization and the rationalization for selection of the discrete reactive equipment.

Description

technical field [0001] The invention belongs to the technical field of automatic voltage control of power systems, in particular to a method for selecting discrete reactive power equipment based on weighted operation factors in substation automatic voltage control Background technique [0002] Automatic Voltage Control (AVC, Automatic Voltage Control) system is one of the most important automatic control systems in power systems. Among them, the automatic voltage control capability and effect of the substation directly affect the overall control results of the automatic voltage control of the power system. The substation is equipped with a certain capacity of discrete reactive power equipment (capacitors, reactors) to achieve the goal of automatic voltage control. However, since substations are equipped with multiple capacitors and reactors, and when choosing to put in or cut out a specific capacitor or reactor, it is necessary to consider that putting in (cutting out) diff...

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Problems solved by technology

[0003] In the existing substation control system, after receiving the control requirement of putting in (removing) the capacitive reactor, the traditional experience is used to determine which reactive device will perform the control task. There is a lack of quantitative and reliable decision-making standards, which is difficult to meet Complicated, control requirements under special circumstances, and its solidified evaluation criteria do not have the ability to deal with different requirements for various performance indicators of discrete reactive power equipment under different control strategies

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