【摘要】 为解决交直系统的低功率因数问题,本文提出了功率因数为1的新型交直直电力机车变流器的新思想。本文对主电路、控制电路及系统做了理论上的分析,用GTO做为开关元件,对系统做了小功率实验。实验结果表明,该系统交流输入端的电流波形为正弦,其相位与电网电压的相位基本上相同,功率因数近于1,它是一种有前途的电力机车变流系统。更多还原

【Abstract】 The conception of a new type power converter is introduced to solve the the problem of low power factor in AC-DC systems. Theoretical analysis is given to the main circuit; the control circuit and the system operation principle. The results of a low power test experiment which has been carried out with a GTO being used as the switching element, indicate that the shape of the input current in the AC side is sinusoidal, about in phase with the line voltage, and that the power factor of the system is approximately equal to one. The system is fairly promising for use in electrical locomotives.更多还原