CAJ | 학술논문

闭式泵控马达液压调速系统具有效率高、结构紧凑、油液不易被污染等特点，现已被广泛地应用于大功率的工业场合。为了分析闭式泵控马达液压系统效率，文章以设计的闭式变转速、变排量大功率泵控马达液压调速系统为研究对象，建立了泵控马达调速系统的效率计算模型和2种调速系统的AM ESim软件仿真模型。仿真与实验研究结果表明，在相同的负载工况条件下，闭式变转速泵控马达液压系统效率始终要比变排量的高，在高速、重载工况下两者效率接近，在低速、轻载工况下变转速泵控马达调速方式节能效果更明显。
폐식빙공마체액압조속계통구유효솔고、결구긴주、유액불역피오염등특점，현이피엄범지응용우대공솔적공업장합。위료분석폐식빙공마체액압계통효솔，문장이설계적폐식변전속、변배량대공솔빙공마체액압조속계통위연구대상，건립료빙공마체조속계통적효솔계산모형화2충조속계통적AM ESim연건방진모형。방진여실험연구결과표명，재상동적부재공황조건하，폐식변전속빙공마체액압계통효솔시종요비변배량적고，재고속、중재공황하량자효솔접근，재저속、경재공황하변전속빙공마체조속방식절능효과경명현。
For the characteristics of high efficiency ,compact structure and the oil being not easily con-taminated ,the closed hydraulic pump controlled motor system has been widely applied to high-power industrial applications .In order to analyze the efficiency of the closed hydraulic pump controlled motor system with variable speed or variable displacement ,the mathematical models and AMESim software simulation model are built .The results show that under the same load working conditions ,the effi-ciency of closed variable speed pump controlled motor is always higher than that of variable displace-ment .Under the high-speed and heavy-load working conditions ,the efficiency of variable speed pump controlled motor is close to that of variable displacement .Under low-speed and light-load working conditions ,the efficiency of energy saving of variable speed pump controlled motor is more obvious .