Analysis of Overvoltage Faults in UPS Parallel DC Bus
The UPS parallel system,as an important equipment to ensure the continuity and stability of power supply,plays a crucial role in modern power systems.However,with the continuous growth of electricity demand and the complexity of power networks,UPS parallel systems are also facing various potential faults and problems.Among them,DC bus overvoltage fault is a common type of fault that affects the normal operation of UPS parallel systems.DC bus overvoltage can cause damage to the UPS system itself,as well as damage or abnormal operation of connected electronic devices,thereby affecting the stability and reliability of the entire power system.This article aims to conduct an in-depth analysis of the overvoltage fault of the UPS parallel DC bus,explore its occurrence mechanism,diagnostic methods,and influencing factors,and propose corresponding optimization strategies and measures to improve the operational stability and reliability of the UPS parallel system.Through systematic research and analysis of the overvoltage fault of the DC bus,theoretical guidance can be provided for the design,operation,and maintenance of the UPS system,and it can also make positive contributions to the safe and stable operation of the power system.