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随着智能化的兴起和信息处理技术的普及,电子计算机、彩色电视机和电子节能照明光源等电子设备和元件已广泛进入到我们的学习、工作、生活中。这些元件和设备属于非线性负载,其非线性产生的谐波电流,如果不加以抑制,会使低压电网的电压电流波形产生畸变,影响电能质量。电子元件和设备已成为低压电网中不可忽视的谐波源。现对最常用的电子设备和元件的谐波及其影响进行了分析,提出相应的对策。
With the rise of intelligence and the popularization of information processing technologies, electronic devices and components such as electronic computers, color television sets and electronic energy-saving lighting sources have been widely introduced to our study, work and life. These components and devices are non-linear load, the nonlinear harmonic current, if not suppressed, will make low-voltage power grid voltage and current waveform distortion, affecting power quality. Electronic components and devices have become an indispensable source of harmonics in low voltage networks. Now the most commonly used electronic devices and components of the harmonics and its impact were analyzed and put forward corresponding countermeasures.