By getting the direction function from the output AC current, the applied time of voltage vectors in one PWM period was chosen, the direction of central current was controlled for DC voltage balance.
该方法通过实时检测三相交流输出电流方向得到方向函数,利用该函数选择一个PWM周期内不同电压矢量作用时间来控制中点电流的方向,实现电压平衡。
The cathode polarization: dc through electrode, the cathode potential deviating from the balance to the negative potential moves in the direction of the phenomenon.
阴极极化:直流电通过电极时,阴极电位偏离平衡电位向负的方向移动的现象。
The cause that transition current of DC-load in rectifier unit without balance reactor exceeds the range of permission is discussed.
分析了导致不带平衡电抗器的整流机组直流负载拐点电流超出许可范围的成因;
Based on the single DC motor model, the mathematic model of dual-motors was established to analyze the problem of output torque balance of dual-motors.
这一特殊结构使得正反转电机的驱动问题尤其是输出转矩平衡问题显得尤为突出。
Furthermore, DC voltage control is achieved adopting power balance theory.
采用能量平衡原理实现了逆变器直流侧电压的控制。
Base on power balance control, the article introduce the minimum capacitance design to be able to make quantitative analysis for the DC-side capacitors.
文章还在功率平衡控制基础上,为了能够对直流侧支撑电容进行定量分析,进一步引入电容值最小化设计。
Subsequently, a novel controller for DC bus voltage regulation is put forward according to the small signal model based on the instantaneous power balance in AC and DC sides of three-phase SAPF.
然后根据交流侧和直流侧的功率平衡方程,推导了电压环的小信号模型。最后基于该模型设计了一种高动态性能的直流电压调节器。
A DC voltage outer loop control for power balance and PI correction and an ac current inner loop control for feedback are designed to ensure the current quality and stabilize the DC voltage.
通过直流电压外环的功率平衡控制及比例积分校正,配合内环并网电流反馈控制,使并网逆变器在保持并网电流质量的同时更好地控制直流电压。
In this paper, the AC-DC-AC structure commonly used in wind turbine is introduced, and introduce the concept of power balance control.
本文结合风力发电机组中常用的交直交结构,将功率平衡概念引入并网变流器控制。
Feedforward signal includes the information of both grid voltage and DC side load. Power balance between the input and output can be maintained by adjusting AC side currents.
前馈信号同时包含了电网电压和负载的信息,通过快速调节交流侧进线电流,使得系统功率平衡得以维持。
DC voltage balance is the key issues of cascaded dynamic voltage restorer.
直流侧电压平衡是级联型动态电压恢复器的关键问题。
Based on the principle of power balance, the DC-side line resister of a 12-phase synchronous generators-rectifier system is reduced to the corresponding AC-side.
本文根据功率平衡的原则,将十二相发电机整流供电系统直流侧线路电阻折算到相应的交流侧各相绕组。
The estimate method of DC load and AC load based on the bus in microcomputer application system is introduced. The load driver and the balance of single direction and dual direction bus are focused.
介绍了总线直流负载和交流负载的估算办法,也为解决单向总线和双向总线的负载驱动及平衡问题提出了具体的解决方案。
The DC sensor based on magnetic potential self-balance and feed-back compensation is brought forward based on the research of basic principles about traditional DC transformer and magnetic magnifier.
磁势自平衡回馈补偿式直流传感器是在传统直流互感器、双向磁放大器基本原理的基础上设计出的一种新型的直流大电流传感器。
The systematic test principle and realization technique of dynamic balance method for self-driving outer rotor DC motor based on influence coefficient separate method are described in this paper.
描述了基于影响系数分离算法平衡自驱动外转子直流电机的测试系统原理及其实现方法。
The detection circuit has a major influence on the accuracy and sensitivity of DC sensor based on magnetic potential self-balance and feedback compensation.
在磁势自平衡回馈补偿式直流传感器中,检测补偿回路对系统的精度有很大影响。
The estimate method of DC load and AC load based on the bus in microcomputer application system is introduced. The load driver and the balance of single direction…
介绍了总线直流负载和交流负载的估算办法,也为解决单向总线和双向总线的负载驱动及平衡问题提出了具体的解决方案。
Then, in chapter 4 of this thesis, the reliability analysis on the DC sensor based on magnetic potential self-balance and feedback compensation is processed.
然后,本文在第四章对磁势自平衡回馈补偿式直流传感器进行了可靠性分析。
It is controlled by computer and driven by DC brushless motor without carbon powder pollution. It is self-balance running with low noise and slight vibration. The speed rise or drop quickly.
微机控制,直流无刷电机驱动,无碳刷粉尘污染,快速升降速,操作简便,自动平衡,噪声低,振动小。
A fully-digital DC drive, a programmable controller to balance the complete line.
采用全数字直流传动,可编程控制器协调整机工作。
A fully-digital DC drive, a programmable controller to balance the complete line.
采用全数字直流传动,可编程控制器协调整机工作。
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