Building automation system is an important intelligentized subsystem of intelligent building, also known as the groundwork of intelligent integration, which aims at automatic device management, efficiently saves energy and reduces use-cost. Building automation system stems from the latest technological combination of architecture, computer, control and communication, still keep up with their going paces. For the widely used computers and electronic devices in intelligent building, the quality of power supply will affect the normal operation of the intelligent system devices. Moreover, the effective protection methods to improve the quality of power supply were presented.%楼字自动化是智能建筑重要的智能化子系统之一,是建筑智能化集成的基础系统,主要作用是实现对建筑设备高效的自动化管理,有效地节约建筑能耗,降低建筑成本.楼宇自动化系统融合了现代建筑、计算机、控制、通信的最新成果,并随着这些技术的发展而快速发展.由于智能建筑中运用了大量的计算机和电子设备,供电电源的质量直接影响到智能化系统设备的正常运行.分析了在智能建筑中影响电源质量的各种因素,提出了提高、改善电源质量的有效防护措施.
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