UPS常见供电方式及运行方式
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摘要
不间断电源系统(UPS)为离散控制系统(DCS)供电,主要起到两个作用:一是应急使用,防止突然断电而影响正常工作,给DCS系统造成损害;二是消除市电上的电涌、瞬间高电压、瞬间低电压、电线噪声和频率偏移等"电源污染",改善电源质量,为DCS系统提供高质量的电源。结合部分石化企业实际,浅述了商业级UPS与工业级UPS两类UPS的供电方式及运行方式,旨在提供参考。
UPS plays two main roles in supplying power to the DCS system: one is emergency use to prevent the sudden power loss and affect the normal work, which causes damage to the DCS system; the other is to eliminate the"power pollution" such as surge, instantaneous high voltage, instantaneous low voltage, wire noise and frequency offset,improving the quality of power supply, and providing high-quality power supply for DCS system. Based on the practice of some petrochemical enterprises, a brief account of the power supply mode and operation mode of commercial UPS and industrial UPS is given, in order to provide a reference.
UPS plays two main roles in supplying power to the DCS system: one is emergency use to prevent the sudden power loss and affect the normal work, which causes damage to the DCS system; the other is to eliminate the"power pollution" such as surge, instantaneous high voltage, instantaneous low voltage, wire noise and frequency offset,improving the quality of power supply, and providing high-quality power supply for DCS system. Based on the practice of some petrochemical enterprises, a brief account of the power supply mode and operation mode of commercial UPS and industrial UPS is given, in order to provide a reference.
引文
[1]王其英,何春华.UPS工作原理与实用技术[M].北京:人民邮电出版社,2006.