Capacitor online monitoring system and method
A technology for monitoring systems and capacitors, which is applied in capacitance measurement, instruments, and electrical measurement. It can solve problems such as capacitor unit capacitance deviation and capacitor tripping, and achieve the effect of both system accuracy and economy.
Inactive Publication Date: 2020-09-08
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology
After the capacitor is energized for a long time, the capacitance value of the capacitor unit often deviates. If the capacitance value exceeds the standard, the capacitor protection device will be triggered to cause the capacitor to trip.
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[0038] The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0039] Such as Figure 1 to Figure 4 As shown, the present invention provides a capacitor on-line monitoring system, comprising:
[0040] The acquisition part is arranged on the circuit structure of the capacitor, and is used to acquire the operating parameters of the capacitor;
[0041] The cloud collection server is connected in communication with the collection part, and is used to receive t...
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The invention discloses a capacitor online monitoring system and method. The system comprises an acquisition part, a cloud acquisition server and a background server, wherein the acquisition part is arranged on a circuit structure of a capacitor and is used for obtaining capacitor operation parameters; the cloud acquisition server is in communication connection with the acquisition part and is used for receiving the capacitor operation parameters acquired by the acquisition part; the background server is in communication connection with the cloud acquisition server and is used for receiving, storing and processing the data of the cloud acquisition server; the background server analyzes the operation rule of the capacitor according to the obtained data, and comprehensively evaluates the operation state of the capacitor. According to the system disclosed in the invention, the operation ecology of the power capacitor is evaluated, the operation state of the capacitor is evaluated more effectively, the capacitance change rate of the capacitor is applied to online monitoring of the capacitor, the accuracy and economy of the system are considered, and the harmonic current and power-off residual voltage of the capacitor are monitored simultaneously.
Description
technical field [0001] The invention relates to the technical field of capacitor monitoring, in particular to a capacitor online monitoring system and method. Background technique [0002] At present, power capacitors are widely used in power grid systems, involving multiple voltage levels such as 66kV, 35kV, and 10kV. Capacitors play an important role in voltage adjustment during high-load periods. The change of capacitance value is an important factor affecting the stable operation of the capacitor. At present, the capacitor is detected by the staff holding the capacitance meter and the ammeter through the power failure of the equipment. [0003] In the existing technology, the capacitor bank is tested on site. Because of the large number of units in each capacitor group, the test time is long, and the capacitor needs to be powered off during the test. The periodic measurement work brings a lot of work such as power outage and safety measures. quantity. After the capacit...
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IPC IPC(8): G01R27/26G01R31/00G01K11/22
CPCG01R27/2605G01R31/00G01K11/22
Inventor叶伟标魏凌枫魏炯辉杜启业张建伟杨婧李林蔚王沛林刘国兵
OwnerGUANGDONG POWER GRID CO LTD