负载变化

• The experiment result shows that conversion efficiency in ccm is improved by 2 percent compared with that in dcm , although the on - resistance of winding in ccm is more than that in dcm . the analysis of open - loop transfer function in both dcm and ccm shows that pull - push hfl inverter at ccm
  微分补偿网络的推挽高频链逆变电路在输出从空载变化到额定阻性负载变化的过程中，逆变电路工作模式从dcm变化到ccm模式，实验结果表明电路在这两种模式下都能输出稳定的正弦电压，且具有较高的稳态精度。
• The possible factors including the deviation of temperature in length and breadth of rod , the changes of transfiguration resisting force under the changes of temperature , the adjustment of roll gap , the variation of rolling pressure , the changes of roller speed during dynamic adjusting press , the unmatched of seconds - flux under the dimension fluctuation of the coming sample and so on . the whole system was a closed loop which factors in it interacts each other
  可能的影响因素有:沿轧件纵横向温度变化、由温度引起的轧件变形抗力变化、轧机辊缝值变化、负载变化、电机调节系统由不稳定向稳定过渡过程中轧辊转速的变化(如咬钢过程中的动态速降后的回复阶段) 、来料尺寸波动造成秒流量不匹配等,整个仿真系统是各个因素相互影响关联的一个闭环系统。
• Through experimental research , the calculation formula that the pressure highly - adjusted capacity of two cylinder chambers varied with the change of step load and the formula about hydraulic elements main parameter ( rated pressure ) were both made , which had important valuation in selecting the main parameter about this hydraulic system
  通过试验研究得出了出口节流调速系统中液压缸两腔压力超调量随负载变化的计算公式以及出口节流调速系统中液压元件主参数(额定压力)计算公式，有利于正确选择系统的元件及主参数。
• Abstract : this paper deals with the simulation result analysis of three phase synchronous generator with rectified output with stator y connected , as well as with stator connected . the curves of overlap angle , displacement angle and power factor with load are presented , and the tendency of these curves are also described
  文摘:对整流负载时凸极同步发电机定子绕组及y联结仿真结果进行分析，绘出反映整流特性的换流重叠角、位移角以及功率因数随负载变化曲线，并对变化趋势进行分析。
• Zero - voltage turn - on and zero - voltage turn - off in lagging arm and leading arm of soft - switching topology , working waveform of power transformer and process of rectifier and transition are presented in detail . the influence of resonant inductance of the power transformer , resonant capacitor and variation of load to the process of soft - switching are given
  主要对软开关滞后桥臂和超前桥臂的零电压开通、关断过程，功率变压器的工作波形及整流换流过程进行了详细的仿真分析，并重点讨论了逆变器的谐振电感、谐振电容以及负载变化对软开关过程的影响。
• The theoretical and experiment results shows that the digital examine and control system which adopts vss lms algorithm can allow the apf to track changes in the system as well as produce a small steady state error , therefore ensures the speed and precision of apf . also erase / program flash on system and bootload are achieved
  实验结果表明，采用变步长lms算法的数字化检测与控制系统同时保证了谐波检测的速度与精度，在负载变化时有更好的跟踪能力，满足有源电力滤波器对谐波检测的要求。
• The soft switching , phase - shifted pwm and bi - directional dc - dc converter hang together , depress circuit switching loss and noise effectively , which provide condition to increase switch frequency , efficiency and reduce size and weight for the converter ; at the same time , it is proved the converter can achieve zvs in larger load variation , and the converter has the virtue of structure compact , voltage and current stress small such as ordinary hard switch converter
  该变换器把软开关技术和相移控制pwm技术以及双向dc - dc变换器技术有机结合在一起,有效地降低了电路的开关损耗和开关噪声,为变换器装置提高开关频率、效率以及降低尺寸及重量提供了良好的条件;同时,能拓宽零电压开关的范围,使变换器在较宽的负载变化范围内都能实现软开关。
• According to the results of the simulation and experiments , it is known that with the controller which is depended on the h algorithm the system is self - adaptive and has the robust character for the change of the model parameters . and the outside inferences and load variation can be retained effectively
  仿真和试验结果表明，本文基于h _控制算法设计的控制器可以使系统具有良好的跟踪特性和对系统参数摄动的鲁棒性，可以有效地抑制负载变化和外界干扰，满足了系统的要求。
• Each source agent possesses the capacity of learning and reasoning based on its belief and goal , and multi agents interact with each other to support the dynamic query optimization and plan execution . thus , the performance of the whole system can be improved efficiently . also , we study the process of multi - agent reinforcement learning in selecting sources with lighter load to answer quries s
  在基于agent的查询优化系统模型中，利用agent的学习能力可以根据数据源的负载变化来动态选择参与查询的数据源，详细探讨了一种基于强化学习的数据源选择优化算法，并指出了其不足之处以及未来的研究方向。