CAJ | 학술논문

内蒙古国合电力有限责任公司国合220 kV 开闭站及国奥双回线承担着向蒙古国奥尤陶勒盖（OT）项目送电的任务。对国奥双回线进行多种运行方式潮流计算，分析不同运行电压和负荷情况下国奥双回线的供电能力。针对在OT侧负荷较低时国合开闭站运行功率因数偏低问题，从电网电压、OT侧负荷大小、功率因数、补偿容量等方面进行分析，提出按照OT侧负荷大小分阶段控制OT侧负荷功率因数的控制策略，即在OT侧负荷较低时，通过控制OT侧功率因数，吸收一部分由线路充电功率产生的无功功率。通过计算，验证了该策略的可行性和经济性。
내몽고국합전력유한책임공사국합220 kV 개폐참급국오쌍회선승담착향몽고국오우도륵개（OT）항목송전적임무。대국오쌍회선진행다충운행방식조류계산，분석불동운행전압화부하정황하국오쌍회선적공전능력。침대재OT측부하교저시국합개폐참운행공솔인수편저문제，종전망전압、OT측부하대소、공솔인수、보상용량등방면진행분석，제출안조OT측부하대소분계단공제OT측부하공솔인수적공제책략，즉재OT측부하교저시，통과공제OT측공솔인수，흡수일부분유선로충전공솔산생적무공공솔。통과계산，험증료해책략적가행성화경제성。
The 220 kV switching station and Guoao double circuit lines owned by Inner Mongolia International Cooperation Co.,Ltd. assume the Mongolian Oyu Tolgoi (OT) power transmission project tasks. Calculate power flow for Guoao double-circuit lines on a variety of operating modes to analyze power supply capacity of Guoao double circuit lines under different operating voltages and loads. For Guohe switching station′ s low operating power factor under condition of low load on the OT side, analyzed from the grid voltage, OT side load size, power factor, compensation capacity, etc., according to size of load on OT side. Proposed phased control strategy to control load power factor of OT side, that was, when the lower load on OT side, by controlling the power factor of OT side, absorbed partial reactive power produced by line charging power. By calculation, verified the feasibility and economy of the strategy.