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介绍一种基于单片机的多功能智能功率因数控制系统的设计方法，可实现对供电电网功率因数进行自动检测和控制，使电网负荷自动保持平衡状态；还可以分时段检测及显示电能。实用表明，该系统可降低线损，节约能源，缓解了供电紧张的问题。
This paper introduces a design method of multi-function intelligent power factor control system based on single-chip microcomputer, which can automatically detect and control the power factor of the power supply network so as to keep the load of the power grid in balance automatically. It also can detect and display the power in different time periods. Practical shows that the system can reduce line losses, save energy and ease the power supply problems.