CAJ | 학술논문

根据PWM整流器在两相静止坐标系下的数学模型，提出一种直接估计网侧电压用以实现无交流电压传感器控制的方法。利用滑模观测器（SMO）重构网侧电压并详细分析了观测器的原理和设计步骤，采用谐振式滤波器（RTO）从等效控制信号中提取电压信息，避免了使用低通滤波器带来的信号延时问题。为了削弱系统抖振，将电压估测值作为反馈引入观测器电流模型中，构造一种新型滑模观测器。仿真和实验结果表明使用该观测器的PWM整流器具有良好的动静态响应，验证了所提出的无交流电压传感器控制策略的有效性和准确性。
근거PWM정류기재량상정지좌표계하적수학모형，제출일충직접고계망측전압용이실현무교류전압전감기공제적방법。이용활모관측기（SMO）중구망측전압병상세분석료관측기적원리화설계보취，채용해진식려파기（RTO）종등효공제신호중제취전압신식，피면료사용저통려파기대래적신호연시문제。위료삭약계통두진，장전압고측치작위반궤인입관측기전류모형중，구조일충신형활모관측기。방진화실험결과표명사용해관측기적PWM정류기구유량호적동정태향응，험증료소제출적무교류전압전감기공제책략적유효성화준학성。
The traditional way to produce the tube filter bag is non -automatic procuctior. This article introduces an automatic production line. Itsolves the problems which restrict the technology in the production of tubular filter bag, such as the problem of the synchronization between sewing location and front IN station, back OUT station, and the problem of elastic tension control.