English translation for "current ripples"
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- 波纹
Related Translations:
- Example Sentences:
| 1. | Rhomboid current ripple
菱形流痕 | | 2. | Modified formula for sensorless dc motor speed estimation was proposed through the test for relationship between the current ripple frequency and the rotation speed in a 4 - pole dc motor
摘要根据4极直流电动机的转速与脉动电流频率关系的实验结果，对现有的无传感器直流电动机测速公式提出了修正意见。 | | 3. | The new modified formula not only meets with our experiment result , but also can explain the examples of relationship between the speed and the current ripple frequency of dc motors in the literature
新的修正公式不仅能够解释文中的实验结果，也能满足以往文献提出的直流电动机转速与脉动电流频率之间的关系。 | | 4. | Thirdly , current ripple will be calculated in two current control mode respectively and paper will make a conclusion about its interaction with the voltage , current , frequence and so on . finally this paper will show the design of the controller and test waveforms
另外，本文分析了在两种电流控制方式下，即pwm控制和滞环控制下电流脉动和相绕组电压、相电流、转速和开关频率的关系。 | | 5. | The operation principle , stability and current ripple of the output filter inductor between serial and parallel modes are analyzed . a 1000 va serial and parallel combined dual buck half - bridge inverter ( dbhbi ) has been implemented to verify the analysis
文章分析了该逆变器的工作原理、串并联两种运行模式对输出滤波电感电流脉动、输入电压脉动、系统稳定性的影响,并以1000va双降压式半桥逆变器为例进行了实验验证。 | | 6. | With the best modulation strategy which was found on condition that it must have largest energy transfer ratio , smallest current ripple of the inductor , and realizing zvs of each switches , the converter overcomes the drawbacks presented by the conventional zvs fb converter , such as high voltage stress of each switches , large current ripple of the inductor , and severe parasitic ringing on the rectifier diodes , so it can get higher efficiency , faster respond speed , and wider application area . the operation principle of the proposed converter is analyzed and verified by a 3kw , 50khz experimental prototype . experiments and research results show that the scheme of the tl topology derivation is reasonable , adjusted modulation strategy makes some other severe problems in conventional topologies easy to solve or makes the converter more competitive
研究结果表明，本文提出的三电平拓扑变换方案合理，针对各种三电平拓扑寻找到的控制策略可以解决变换器存在的某些问题或使变换器表现出更突出的优势：例如针对单管直流变换器三电平拓扑的控制策略可以减小电感的设计值，针对推挽直流变换器三电平拓扑的控制策略可以实现开关管的软开关、解决变压器偏磁问题等，针对全桥直流变换器三电平拓扑的控制策略可以减小电感的设计值、实现开关管的软开关等。 | | 7. | Second , a direct torque control for pmsm based on stepping spwm is analyzed . in classic dtc system , the torque and current ripples are larger because of the restriction of the number of voltage vectors . by means of the vectors subdividing theory , using a new method of dividing voltage vectors based on stepping spwm , more voltage vectors on a circle in space can be achieved
其次考虑到上述的经典的dtc算法中，由于电压矢量个数(六个)的限制，使得转矩波动和电流波动都比较大；针对于此，本文利用矢量细分原理，提出了新的基于阶梯spwm的电压矢量生成方法，得到了更多的空间上均匀分布的电压矢量，可对电压矢量进行更加有效的选择。 | | 8. | In order to avoid the current ripple and the high switch frequency of fixed - band hysteresis current controllers , two hysteresis controllers of change hystersis - band are proposed . one is the sinusoidal - band hysteresis current controller , the other is the adaptive hysteresis current controller based on fuzzy theory
由于常规的滞环电流控制器不能有效地防止负载电流脉动，并且存在着容易导致逆变器的开关器件的开关频率过高的问题，论文提出了两种变环宽滞环电流控制器结构，其一是正弦环宽滞环电流控制器，其二是模糊变环宽滞环电流控制器。 | | 9. | Using the modified method , 6 kinds of tl topologies of single - switch converter are obtained . the deep research reveals that these tl topologies can have less value of the inductor by using interleaving modulation strategy compared with conventional modulation strategy on the condition that the current ripple of the inductor are the same . some drawbacks such as high voltage stress , difficulty of realizing soft - switching , and magnetic aberration were presented in the conventional push - pull converter
对基本方法进行改进，提出了适合6种单管直流变换器的三电平拓扑变换方法，成功地得到了其三电平拓扑，开关管的电压应力降为原来的一半；经过对这些三电平拓扑控制策略的深入研究，详细论述了交错开关方式可以最大幅度地减小电感的电流脉动，从而可以在电流脉动要求相同的情况下减小电感的设计值。 | | 10. | In this paper point to point control , constant frequency control and up and down frequency control are studied , in which current lagging loop control method is used to restrict over currents . and using flux tracking method , position open loop , position close loop control system are also studied . and research results indicate that larger current ripples are restricted by means of subdividing space vectors
本文以永磁同步电动机为研究对象，分别对同步电动机的点动控制、恒频控制以及升降频控制进行了分析与研究，研究中采用了电流滞环控制方法，可有效地限制过电流现象；此外采用磁链跟踪法对位置开环和位置闭环的步进控制系统分别进行了探讨与研究，研究表明，采用矢量细分后，可有效地减小电流波动。 |
- Similar Words：
- "current rip" English translation, "current riple" English translation, "current riples" English translation, "current ripple" English translation, "current ripple mark" English translation, "current rips" English translation, "current rise time" English translation, "current river" English translation, "current rose" English translation, "current rosette" English translation
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