基于配电变压器逆向升压的低压发电机转供电技术研究与应用

Research and Application of Low-voltage Generator-to-power Supply Technology Based on Reverse Boost of Distribution Transformer

用户供电可靠性是指配电网向用户持续供电的能力,是对电力用户服务水平的综合体现,也是供电企业主要的供电质量衡量指标。转供电技术作为一种有效减少用户停电,提高用户供电可靠性的重要技术手段,在保障电力供应过程中发挥了巨大的作用。本文研究了在10 kV中压直馈线路供电且缺少中压发电机支援的情况下,将低压发电机发出的400 V电压升压至10 kV供给中压线路,保障多个中压用户的电力供应。从理论分析和实际应用两个方面介绍了不同情况下通过配电变压器逆向升压后完成低压发电机转供电的方式,为中西部地区供电企业的用户供电可靠性提升提供一种有效途径。

The reliability of power supply to users refers to the ability of the distribution network to continuously supply power to users.As an important technical means to effectively reduce user power outages and improve the reliability of user power supply,power transfer technology has played a huge role in ensuring power supply.In this paper,under the condition of 10 KV medium voltage direct feeder line and lack of medium voltage generator support,the 400 V voltage from low voltage generator is boosted to 10 KV for medium voltage line,so as to ensure the power supply of multiple medium voltage users.From two aspects of theoretical analysis and practical application,the method of converting low-voltage generator to power supply through reverse boosting of distribution transformer under different conditions is introduced,which provides an effective way to improve the reliability of power supply for users of power supply enterprises in the central and western regions.