CAJ | 학술논문

介绍双馈式升降机系统概况，通过理论推导、软件仿真、微型系统模拟，分析基于双馈电机的升降机与电网之间的功率流向，比较双馈式与传统 VVVF 调速式升降机的能耗，认为采用双PWM换流器对双馈电机的转子进行交流励磁，不仅可以调节定子侧的功率因数、实现无极调速，还可以把原本消耗在转子电阻上的电能回馈到电网，具有良好的节能效果。
개소쌍궤식승강궤계통개황，통과이론추도、연건방진、미형계통모의，분석기우쌍궤전궤적승강궤여전망지간적공솔류향，비교쌍궤식여전통 VVVF 조속식승강궤적능모，인위채용쌍PWM환류기대쌍궤전궤적전자진행교류려자，불부가이조절정자측적공솔인수、실현무겁조속，환가이파원본소모재전자전조상적전능회궤도전망，구유량호적절능효과。
This paper introduces the general situation of double-fed machine system,analyzes the power flow direction through theory derivation,software simulation,micro-system simulation,compares the consuming energy between the lifts based on the double-fed motor and the grid,and compares it with traditional VVVF speed lift,considers that the AC ex-citation of the double-fed motor rotor with double-PWM con-verter not only can adj ust power factor of the stator and a-chieve stepless speed regulation,but also can make the elec-trical energy consumed at the rotor resistors fed back into the grid,The result shows that the lift based on the double-fed motor has good energy saving effect.