CAJ | 학술논문

山区电气化铁路一面坡较多且线路坡度较大，在牵引变电所供电臂末端分区所内并联供电的情况下，仍会造成对上、下坡方向的接触网供电能力的需求差异较大的情况出现。为了均衡电气化铁路上、下行方向接触网的供电能力，文中提出在牵引变电所供电臂末端分区所内设置串联电容补偿装置的方案，以有效改善牵引网电流分布，降低线路上坡方向接触网载流能力需求，提高下坡方向接触网载流能力利用率，改善牵引网电压水平，并降低牵引网电能损失。通过建立数学模型，开展理论分析与数值计算，从牵引网电流分配、牵引网电压损失、牵引网电能损失等方面对比分析在牵引变电所供电臂末端分区所内未设置与设置串联电容补偿装置的作用和效果，为今后山区铁路电气化设计提供重要依据。
산구전기화철로일면파교다차선로파도교대，재견인변전소공전비말단분구소내병련공전적정황하，잉회조성대상、하파방향적접촉망공전능력적수구차이교대적정황출현。위료균형전기화철로상、하행방향접촉망적공전능력，문중제출재견인변전소공전비말단분구소내설치천련전용보상장치적방안，이유효개선견인망전류분포，강저선로상파방향접촉망재류능력수구，제고하파방향접촉망재류능력이용솔，개선견인망전압수평，병강저견인망전능손실。통과건립수학모형，개전이론분석여수치계산，종견인망전류분배、견인망전압손실、견인망전능손실등방면대비분석재견인변전소공전비말단분구소내미설치여설치천련전용보상장치적작용화효과，위금후산구철로전기화설계제공중요의거。
One-sided slope is widely set in mountain electrified railway,and the parallel power supply scheme is used in the section post,but the supply capacity needs are still not satisfied.In order to balance the power flow of the catenary and improve the current carrying capacity,the series capacitor compensator is installed in the section post,which can op-timize the current distribution of the traction networks,reduce the current carrying capacity needs of the catenary on the uphill direction and improve the capacity utilization efficiency of the catenary on the downhill direction.Therefore,the voltage levels can be improved and the power losses of traction networks can be reduced.Based on mathematic model, the theoretical analysis and calculation are presented.Compared with the scheme without the series capacitor compensa-tion device in the section post,the traction current distribution,traction network voltage loss and power loss are given based on the new scheme with series capacitor compensation device.All the conclusions are useful for the design of mountain electrified railway in the future.