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高速公路机电系统中的变压器、照明灯具、不间断电源等机电产品会产生较多谐波,谐波的产生会对整个供电系统产生不利影响,从而使高速公路的运维面临很大问题。根据高速公路供电系统现状,分析谐波产生的原因及谐波对高速公路供电系统和机电设备的危害,提出了几种可实施抑制谐波的方法,并以实例测试数据说明谐波抑制的效果。
The electromechanical products such as transformers, lighting fixtures and uninterruptible power supplies in the highway electromechanical system will generate more harmonics, and the generation of harmonics will have an adverse effect on the entire power supply system, so that the operation and maintenance of the expressway faces great problems. According to the current situation of expressway power supply system, the causes of harmonic generation and the harm of harmonics to the power supply system and electromechanical equipment of expressway are analyzed, and several methods to suppress harmonics are proposed. The example test data shows the effect of harmonic suppression .