Study On Application Of DC Power Supply System Of Lithium Iron Phosphate Battery Substation

Substation DC battery system is the entire DC power system provides power protection for network equipment last line of defense, its importance is self-evident, so battery quality performance is good or bad to some extent determines the substation DC power operation quality, especially the implementation of substation integration and smart grid power substation applications designed to run on the reliability of the DC power supply system put forward higher requirements.VRLA Battery presence Battery overvoltage, undervoltage, charging a greater impact on the battery life and capacity, likely to cause the battery pack early retirement, once the operation and maintenance is not in place at Substation Power outage situation, pole could easily lead to power grid accident, movement to bring security and stability to the grid potential risks. Lithium iron phosphate battery has a long life, safety, environmental protection, high current charge and discharge, high temperature, since small discharge rate, no memory effect, small size, light weight and other characteristics. It is because of the relative VRLA batteries, lithium iron phosphate batteries with incomparable superiority, to carry DC power substation application of lithium iron phosphate batteries is significant.Application of Substation DC Power Supply System Based on lithium iron phosphate batteries, lithium iron phosphate battery through the charging process, the battery equalization system study of lithium iron phosphate battery DC power system functional design of each unit, the DC power system AC voltage, charging voltage, DC bus voltage, current, battery voltage monitoring. Further research papers DC power system dual power supply automatic switching devices, in the original, based on the DC power supply system, the installation of a lithium iron phosphate battery DC power systems. DC system via two diodes in parallel operation, under normal circumstances by a lithium iron phosphate battery power supply system to the feeder screen, the original DC power system in hot standby, in the lithium iron phosphate battery DC power system failure, then the original DC Power systems for power feeder screen.By setting the lithium iron phosphate battery charging DC power system parameters, the monitoring device controls the charging operation of the charging process automatically, lithium iron phosphate battery charging DC power system test procedures for lithium iron phosphate battery charge and discharge test data, charts, and analyzed Compared.Throughout the trial run, lithium iron phosphate battery DC power system running smoothly, the battery voltage balance is good, single battery voltage monitoring accurate. Preparation of lithium iron phosphate battery power to run the operating principle of the system on-site, to further standardize the operation and maintenance of on-site safety operation, lithium iron phosphate battery in substation explore the road and accumulated operating experience.