CAJ | 학술논문

直流系统是变电站的重要组成部分，其设计方案的合理性直接影响变电站的安全、可靠运行。针对500 kV 变电站实现无人值班新模式，对直流电源的安全性、可靠性提出更高的要求；统计分析现有有人值班的500 kV变电站直流用电负荷，介绍了近年来变电站直流电源技术的发展；分析变电站内的各种直流负荷，提出满足实际需要的蓄电池容量和充电装置容量的选择方案；最后，以安徽某500 kV 无人值班变电站直流系统为例，计算并配置该变电站直流电源容量，为同类直流电源改造提供了参考。
직류계통시변전참적중요조성부분，기설계방안적합이성직접영향변전참적안전、가고운행。침대500 kV 변전참실현무인치반신모식，대직류전원적안전성、가고성제출경고적요구；통계분석현유유인치반적500 kV변전참직류용전부하，개소료근년래변전참직류전원기술적발전；분석변전참내적각충직류부하，제출만족실제수요적축전지용량화충전장치용량적선택방안；최후，이안휘모500 kV 무인치반변전참직류계통위례，계산병배치해변전참직류전원용량，위동류직류전원개조제공료삼고。
As an important part of a substation,correct design of DC system directly affects the substation safety and reliability.For the new operation model of unattended 500kV substation, the DC system was with high requirements compared to manned substation.The development of substation DC power technology was introduced,the DC load of substation was analyzed,the configuration schemes for cumulator capacity and charging device capacity were proposed in this paper.An example of DC load typical design and cumulator capacity and the charging device ca-pacity calculation was presented for a 500 kV substation,it will be a reference for the same DC power capacity configuration rehabilitation.