• 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.

    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方向,实现电压平衡。

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  • This paper provides the major results of research for the automatic phase balance of AC bridge.

    本文提供了关于电桥相位自动平衡研究主要结果

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  • We analyzed the characteristics of the PCH model of ac machine. These included: energy balance, dissipation, passivity etc.

    并且分析了各种交流电机pch系统模型特性包括能量平衡特性,耗散特性,无源特性等等。

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  • 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.

    然后根据交流侧直流功率平衡方程,推导了电压信号模型。最后基于模型设计一种高动态性能直流电压调节器

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  • 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常用直交结构,将功率平衡概念引入并网变流器控制。

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  • This paper presents balanced condition of ac bridge anda kind of fact-adjusting method on ac bridge balance which in a effective method while being applied for teaching.

    本文介绍交流电桥平衡条件一种快速调节交流电桥平衡方法对初学者大有益处。

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  • 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.

    前馈信号同时包含电网电压负载信息通过快速调节交流进线电流,使得系统功率平衡得以维持。

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  • 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.

    本文根据功率平衡原则将十二相发电机整流供电系统直流侧线路电阻折算相应交流侧各相绕组。

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  • 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.

    通过直流电压功率平衡控制比例积分校正,配合内环并网电流反馈控制,使并网逆变器保持并网电流质量同时更好地控制直流电压。

    youdao

  • 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.

    介绍总线直流负载交流负载估算办法解决单向总线和双向总线的负载驱动平衡问题提出了具体解决方案

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  • 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…

    介绍总线直流负载交流负载估算办法,也为解决单向总线和双向总线负载驱动平衡问题提出了具体的解决方案。

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  • Coefficient of linear expansion of metal and density of liquid are measured by the experiment device which is composed of AC bridge and Joly spring balance.

    利用交流电桥和约利弹簧秤组成实验装置测量金属线系数液体密度

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  • If you transfer the balance to a warmer area, make sure to condition it for about 2 hours at room temperature, leaving it unplugged from AC power.

    台放在较低环境温度中的仪器搬环境温度较高的工作间后,应仪器工作间里静放2小时,并切断电源。

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  • Make absolutely sure to unplug the balance from ac power before you connect or disconnect a peripheral device (printer or PC) to or from the interface port.

    辅助仪器(打印机计算机)数据接口连接或者切断之前,电子天平必须断电。

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  • Make absolutely sure to unplug the balance from ac power before you connect or disconnect a peripheral device (printer or PC) to or from the interface port.

    辅助仪器(打印机计算机)数据接口连接或者切断之前,电子天平必须断电。

    youdao

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