CAJ | 학술논문

针对采用常规分段供电方式的长初级直线感应电机由于次级的运动,其覆盖每段定子的长度不断变化,导致通电定子段电机参数不断变化,无法对负载实现精确控制的缺点,设计了带中间母排结构的分段供电网络,可以保证电机在整个运行过程中模型和参数固定不变,能够利用现有各种控制算法实现高性能控制. 对于采用反并联晶闸管作为分段供电切换开关,从晶闸管开通和关断的"数学——物理"模型出发,分析了分段供电切换过程中开关暂态过程及其对电机性能的影响. 利用某采用分段供电的长初级双边直线感应电动机原理样机进行实验,实验结果与理论分析相吻合,验证了理论分析的正确性.
침대채용상규분단공전방식적장초급직선감응전궤유우차급적운동,기복개매단정자적장도불단변화,도치통전정자단전궤삼수불단변화,무법대부재실현정학공제적결점,설계료대중간모배결구적분단공전망락,가이보증전궤재정개운행과정중모형화삼수고정불변,능구이용현유각충공제산법실현고성능공제. 대우채용반병련정갑관작위분단공전절환개관,종정갑관개통화관단적"수학——물리"모형출발,분석료분단공전절환과정중개관잠태과정급기대전궤성능적영향. 이용모채용분단공전적장초급쌍변직선감응전동궤원리양궤진행실험,실험결과여이론분석상문합,험증료이론분석적정학성.
In long-primary linear induction motor ( LPLIM) which is section powered with traditional power supply, the movement of the secondary changes the length it overlaps with every section of the primary, which leads to results that the motor parameters vary and the load can' t be precisely controlled. In order to solve this question, a power supply network with intermediate bus was designed, which made the model and parameters of the motor fix in the entire process and guaranteed various control methods to realize high per-formance. In the light of anti-parallel thyristors as the sectional power supply switch, the "Mathematical-Physical" models of a thyristor turn-on and turn-off process were established. The transient process and its influence of the transfer switches used in section powered linear induction motor were analyzed. A section powered two-primary LPLIM prototype was applied to experiment. The experimental results tally with the analytical value, which verified the correctness of the theoretical analysis.