Capacitance value online calculation method and device, electronic equipment and storage medium

A calculation method and capacitance value technology, applied in CAD circuit design, CAD numerical modeling and other directions, can solve the problems of high computing resource requirements, poor accuracy, low accuracy, etc., to achieve accurate calculation results, overcome poor accuracy, capacitance value accurate effect

CN114757132APending Publication Date: 2022-07-15GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-07-15

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Abstract

The invention discloses a capacitance value online calculation method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring capacitor loop data; based on the charging and discharging state of the capacitor, slicing the capacitor loop data to obtain a plurality of data slices, each data slice including the capacitor loop data in a preset time period; calculating a capacitance value corresponding to each data slice according to the capacitor loop data in each data slice; and calculating a weighted average value of the capacitance values according to a preset weight and the capacitance value corresponding to each data slice, and taking the weighted average value as the capacitance value of the capacitor. According to the method provided by the invention, useless data can be eliminated through a data slicing process, and the calculation amount is reduced. By calculating the capacitance value corresponding to each data slice and calculating the weighted average value, the capacitance value result can balance the difference in each charging and discharging process, the obtained capacitance value is more accurate, and the defects of poor accuracy, low precision and high calculation resource requirement in the prior art are overcome.
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Description

technical field

[0001] The present invention relates to the technical field of high-voltage power electronics, in particular to an on-line calculation method, device, electronic device and storage medium for capacitance value. Background technique

[0002] Capacitors are key components of high-voltage power electronic equipment, and have been widely used in large-scale energy transmission, wind-solar renewable energy grid integration and other fields. In high-voltage power electronic equipment, capacitors are usually in continuous operation. Under the combined effect of long-term electrical, thermal stress and environmental factors, the capacitor electrodes and dielectrics are degraded, and their capacitance values ​​gradually decrease. When the capacitance value drops to a certain level, the capacitor will not work according to the designed working state, that is, the capacitor will fail, and may cause damage to other related components in the circuit, and even cause the p...

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Embodiment Construction

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must hav...