电厂直流系统的母线失压补偿技术研究

Research on Compensation Technology of Busbar Voltage Loss of DC System in Power Plant

设计出一种可靠、经济的直流系统拓扑结构,结合电力电子技术,保障在交流失电、部分蓄电池故障情况下,正常蓄电池组仍可通过DC/DC升压装置继续放电,维持直流母线电压稳定,提高电厂直流电源系统的供电可靠性。试验结果表明,直流电源系统在线监测与应急电源稳压装置具备直流母线失压补偿功能。

A reliable and economical DC system topology is designed.Combined with power electronics technology,under the condition of AC power loss and partial battery failure,the normal battery pack can continue to discharge through DC/DC booster device,maintain the stability of DC bus voltage and improve the power supply reliability of DC power supply system of power plant.The test results show that the on-line monitoring and emergency voltage stabilizing device of the DC power supply system has the function of DC bus voltage loss compensation.