CAJ | 학술논문

本文提出一种基于配对静止无功发生器（SVG）的无功潮流大电流防冰法，据此构建电气化铁路接触网在线防冰系统。为了在接触网防冰的同时使牵引网电压也稳定在允许范围内，以直供单线供电方式为例，推导防冰系统投入后防冰电流与供电臂末端电压的关系，以确定各电气参量之间的关联性。结合贵昆线实测数据，并基于牵引网网压要求，给出不同工况下允许的防冰电流动态范围，分析实际运行工况下在线防冰过程中的接触网沿线温度分布和电压分布，验证了基于SVG在线防冰方案及其电流决策的可行性与有效性。
본문제출일충기우배대정지무공발생기（SVG）적무공조류대전류방빙법，거차구건전기화철로접촉망재선방빙계통。위료재접촉망방빙적동시사견인망전압야은정재윤허범위내，이직공단선공전방식위례，추도방빙계통투입후방빙전류여공전비말단전압적관계，이학정각전기삼량지간적관련성。결합귀곤선실측수거，병기우견인망망압요구，급출불동공황하윤허적방빙전류동태범위，분석실제운행공황하재선방빙과정중적접촉망연선온도분포화전압분포，험증료기우SVG재선방빙방안급기전류결책적가행성여유효성。
A reactive power flow large current anti‐icing technology based on static var generator (SVG) was pro‐posed ,whereby the on‐line anti‐icing system for catenary of electrified railway was developed .In order to keep the voltage of the traction power net within the allowable range while eliminating ice on the catenary , under the direct power supply mode , the relations between anti‐icing current and the voltage of the end of power sup‐ply arm after the anti‐icing system was put into service were deduced , to determine the relevance between dif‐ferent electrical parameters .Based on measured data of Guiyang‐Kunming line and the voltage requirement of traction power net , the dynamic range of anti‐icing currents were calculated under different operating condi‐tions . T he electro‐thermal temperature distribution and voltage distribution of catenary during online anti‐icing process under actual operating conditions were analyzed . Results and analysis indicated the effectiveness and feasibility of the on‐line anti‐icing method using SVG .