Capacitor switching frequency control method and device
By acquiring the switching position information of the capacitor bank, calculating the number of switching actions, and using the discreteness analysis method, the problem of faults caused by frequent switching of the capacitor bank was solved, achieving balanced switching and fault early warning of the capacitor bank, and improving equipment life and reactive power compensation efficiency.
CN114678878BActive Publication Date: 2026-06-05GUANGDONG POWER GRID CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG POWER GRID CO LTD
- Filing Date
- 2022-05-07
- Publication Date
- 2026-06-05
AI Technical Summary
Technical Problem
In existing technologies, frequent switching of capacitor banks leads to a high failure rate of switches and capacitor banks themselves, affecting equipment lifespan and lacking centralized management and fault early warning analysis.
Method used
By acquiring the switching position information of the capacitor bank, calculating the number of switching actions, and using the discreteness analysis method to determine whether control is needed, a master ledger of the capacitor bank equipment is established to achieve balanced switching and fault early warning of the capacitor bank.
Benefits of technology
It reduced the failure rate of capacitor banks and switches, extended their service life, and optimized the reactive power compensation control strategy.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN114678878B_ABST
Abstract
The application discloses a capacitor switch number control method and device, and the method comprises the following steps: obtaining the reactive power of a capacitor bank of a transformer substation and all switch displacement information of the capacitor bank; the switch displacement information contains time information, opening instruction information and closing instruction information; according to the time information, the opening instruction information and the closing instruction information are sorted and analyzed to obtain the switch action number corresponding to the capacitor bank; based on the reactive power of the capacitor bank, the capacitor bank is classified and counted to obtain a total account of capacitor bank equipment; the total account of capacitor bank equipment is associated with the switch action number corresponding to the capacitor bank to obtain capacitor switch information account based on the bus of the transformer substation; whether all the capacitors in the capacitor switch information account need to be controlled in terms of switch number is determined by using a dispersion analysis method. Therefore, the service life of the capacitor bank and the switch is prolonged, and the strategy optimization of the reactive power compensation control is realized.
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