Method, device, power supply system, computer equipment and storage medium for judging effect of voltage deviation isolation
A technology of power supply system and voltage deviation, which is applied in measurement devices, measurement of electricity, and measurement of electric variables, etc., can solve problems such as the inability to quantify the isolation effect of voltage deviation and the inability to accurately evaluate the difference of voltage deviation.
Active Publication Date: 2022-02-08
SHENZHEN POWER SUPPLY BUREAU
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[0003] The traditional evaluation index of voltage deviation isolation is generally the percentage of voltage deviation that describes the magnitude of the deviation, or the voltage overrun time index that is statistically calculated from a larger time scale. Accurately evaluate the voltage deviation difference, and cannot quantitatively judge its isolation effect on voltage deviation
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[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0036] figure 1 It is a schematic flow chart of a method for judging the voltage deviation isolation effect in an embodiment, such as figure 1 As shown, in one embodiment, a method for judging the effect of voltage deviation isolation is provided. This method is applicable to but not limited to single-ended power supply systems. For example, it can also be applied to multi-terminal power supply systems. Specifically, it includes the following steps:
[0037] Step S120: Select a monitoring node in the middle link of the power supply system in the power supply system, and t...
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The application relates to a method, device, computer equipment and storage medium for judging the effect of voltage deviation isolation. The above method includes: selecting a monitoring node in the middle link of the power supply system in the power supply system, and the monitoring node includes a power supply point and a power receiving point; collecting a preset time period The voltage qualification time in the internal monitoring node; wherein, the voltage qualification time is the sum of the time when the power supply voltage deviation does not exceed the preset threshold, and the voltage qualification time includes the first voltage qualification time of the power supply point and the second voltage qualification time of the power receiving point ; Calculate the voltage qualification time promotion ratio according to the first voltage qualification time and the second voltage qualification time; judge the isolation effect of the power supply intermediate link on the voltage deviation based on the voltage qualification time promotion ratio. The above method selects a suitable monitoring node in the power supply system, collects the voltage qualified time at the monitoring node and calculates the voltage qualified time increase ratio, so as to quantify and judge the isolation effect of the intermediate link of the power supply on the voltage deviation.
Description
technical field [0001] The present invention relates to the technical field of voltage monitoring, in particular to a method, device, power supply system, computer equipment and computer-readable storage medium for judging the effect of voltage deviation isolation. Background technique [0002] With the development of power technology, the proportion of sensitive loads in the power system continues to increase, and the requirements for power quality are increasing. The voltage deviation in the power system will directly affect the normal operation of the load. Therefore, at present, many control devices for voltage deviation are installed in the middle link of the power supply system in series or parallel to isolate voltage harmonics. [0003] The traditional evaluation index of voltage deviation isolation is generally the voltage deviation percentage describing the deviation size, or the voltage overrun time index for statistics on a large time scale. The difference in vol...
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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 刘国伟赵宇明王静艾精文
Owner SHENZHEN POWER SUPPLY BUREAU