开关周期 meaning in Chinese
on off cycle
Examples
- The new approach achieved inverter switch ' s duty ratio control and made torque ripple minimum
该方法实现了逆变器开关周期的占空比控制，使感应电动机的转矩脉动达到最小。 - Based on the research on one - cycle control theory , one - cycle control is applied to three - phase four - wire apf with four - leg in this paper . analysis for the average model of the apf in switching period is performed and the control equation is derived
本文在研究单周控制理论的基础上，将单周控制用于四桥臂三相四线制有源电力滤波器，通过分析其开关周期平均模型，推导出它的控制方程。 - For ballasts with rest mode facility changeover from rest mode to normal mode shall occur automatically at greater than 0 . 9 times the off cycle extended to 3 s and the ballast put into the rest mode after 2 s of the off periods in the 500 switching cycles
带有休止状态装置的自容式应急灯具，从休止向正常状态的转换应在不大于0 . 9倍额定电压下自动运行3秒，在500次开关周期结束切断电源的2秒时间内应使自容式灯具进入休止状态。 - The mathematical model of the apf with proposed control method was found , and the according circuit was constituted . design example is given using a two - level ac - dc boost topology . a prototype of 500w was developed to demonstrate the performance of the apf with new control method
由于运用了单周控制理论，输入电流的补偿是在每一个开关周期之内完成，不存在a / d 、 d / a转换和运算延时； （ 3 ）响应快，因而具有很好的动态补偿性能。 - The twelve kinds of modes and equivalent circuits of this inverter with high frequency link within one high frequency switching period are carefully analyzed ; by using the state - space averaging approach , the inverter ’ s averaging model is presented , and the design criterion of key circuit parameters and the output characteristic curve are given ; the analyses of the system stabilization and the mathematic analyzes of the principle of high - frequency - link of this inverter have also be done . prototypes for 1kva 270v 10 % dc / 115v400hzac uni - polarity phase shifting controlled bi - directional voltage mode inverter with high frequency link is designed
以全桥桥式拓扑为例,论述了双向电压源型高频环节逆变器单极性移相控制的原理、逆变器在一个高频开关周期内的十二个工作模式及其等效电路;采用状态空间平均法建立了逆变器平均模型,获得了这类逆变器的关键电路参数的设计准则和外特性曲线;分析了系统稳定性,并对逆变器高频环节原理进行了数学分析。