交流供电网的过电压及谐波抑制电路及系统
By setting a series and parallel structure of nonlinear valve plates and silicon carbide valve plates on the power supply side and the load side, and combining it with intelligent switching and bypass discharge of the controller, the problem of insufficient overvoltage protection in the existing technology is solved, and all-round protection and stability improvement of AC power supply network are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIHUA UNIV
- Filing Date
- 2026-04-20
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot effectively provide comprehensive protection against overvoltages from different energy sources, especially on the power supply and load sides. This results in insufficient protection against resonant overvoltages and external overvoltages, which may lead to device damage or explosion. Furthermore, traditional varistors and zinc oxide surge arresters are prone to failure under prolonged high-energy overvoltages.
Overvoltage absorption components Ry and Rf are installed on the power supply side and the load side respectively. They adopt a series and parallel structure of nonlinear valve plates and silicon carbide valve plates, and are intelligently switched by the controller. Combined with bypass to ground discharge, they can effectively suppress and absorb overvoltages from different energy sources.
It achieves comprehensive protection for both the power supply side and the load side, avoids the cumulative damage of resonant overvoltage, improves the system's anti-disturbance capability and operational toughness, reduces the risk of insulation damage to devices and the burn-out time of switches, and enhances the stability and flexibility of the system.
Smart Images
Figure CN122051999B_ABST