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近年来,随着我国经济的快速发展,推动了交通运输业的发展,电气化铁路以其对环境污染小、功率大、能源综合利用率较高等优点,被各国广泛应用。现阶段,我国的电气化铁路在经济和技术的推动下,获得了迅猛发展,到目前为止,总里程以达到2万多公里,由其承担的运量将近50%。在电气化铁路高速发展的同时,给外部电源供电提出了更高的要求。为了尽可能降低电气化铁路度电力系统供电的影响,必须合理选择供电电源的电压等级。基于此点,本文就铁路电气化供电电源的电压等级进行浅谈。
In recent years, with the rapid economic development in our country, the development of the transportation industry has been promoted. The electrified railway has been widely used in various countries due to its advantages of low environmental pollution, high power consumption and high comprehensive utilization of energy. At this stage, China’s electrified railway has achieved rapid development under the impetus of economy and technology. So far, the total mileage has reached more than 20,000 kilometers, and the volume carried by it has reached nearly 50%. While electrified railway is developing at a high speed, higher requirements are placed on the external power supply. In order to minimize the impact of power supply on the electrified railroad power system, the voltage level of the power supply must be selected reasonably. Based on this point, this article on the railway electrification power supply voltage levels were discussed.