低压大电流开关电源的功率因数校正技术

发布时间：2018-02-10 23:32

本文关键词： 低压大电流功率因数校正技术三相单开关谐波注入　出处：《通信电源技术》2016年06期 　论文类型：期刊论文

【摘要】：随着低压大电流开关电源在各行业中广泛应用,用户对其电能质量有了更高的要求。由于这种大功率开关电源产生的谐波电流对电网污染严重,电源功率因数较低,因此必须采取可靠措施对其改善。文中采用三相单开关Boost型PFC电路,通过谐波注入技术调制开关管的占空比,以实现抑制谐波和校正功率因数,并通过仿真验证了该方法的可行性和有效性。
[Abstract]:With the wide application of low-voltage and high-current switching power supply in various industries, users have higher requirements for its power quality. Because the harmonic current generated by this high-power switching power supply seriously pollutes the power network, the power factor of the power supply is low. Therefore, it is necessary to take reliable measures to improve it. In this paper, three-phase single-switch Boost type PFC circuit is used to modulate the duty cycle of switch through harmonic injection technology in order to suppress harmonics and correct power factor. The feasibility and effectiveness of the method are verified by simulation.
【作者单位】：山西大学;山西省电力勘测设计院;
【分类号】：TN86

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