They are based on a predictive instantaneous current PWM control.
它们是基于预测瞬时电流的PWM控制。
Impact current: current process through the instantaneous current.
冲击电流:电流过程中通过的瞬时大电流。
A starting device and its method can be used in inductive circuit such as motor to decrease instantaneous current produced when inductive circuit being started.
一种应用于电感电路,如马达的启动装置及方法,其可降低电感电路启动时所产生的瞬间电流。
The structure of capacitor unit adopts the design of protruding electrode plate to basically eliminate the resistance loss and enhance the capacity of instantaneous current.
电容单元的结构采用极板凸出设计,可基本消除电阻损耗,提高瞬时过电流能力。
The principle of instantaneous current differential protection is applied in the calculation of distributed busbar protection, which takes the advantage of unsaturated current transducer.
利用非传统电流互感器无饱和的优点,将瞬时值电流差动保护原理应用到分布式母线保护计算中。
In this article the equations of the instantaneous current, which take account of the thermal effect during a sine-shaped pulse current flowing in the magnet, are presented for the first time.
本文第一次建立了在一个正弦型脉冲通过磁体期间考虑热效应时的瞬态电流方程。
The term “pancake people” is largely seen as a negative commentary on the current age of instantaneous information.
在当前这个即时信息时代,“煎饼人”这个词很大程度上被看作是一个贬义词。
This paper presents four-phase transmission harmonic current detecting method based on instantaneous reactive power theory.
该文提出了基于瞬时无功功率理论的四相输电谐波电流检测方法。
Through dial switches the circuit breaker can set rated current, tripping time, instantaneous multiple and so on.
该断路器通过拨码开关完成整定电流、脱扣时间、瞬动倍数等参数的设定。
In this paper, we propose and discuss two new control methods for three phase shunt APFs: the sinusoidal line current control method and the instantaneous reactive power compensation control method.
本论文提出三相并联型有源滤波器的两种新的控制方法,即正弦波化控制和瞬时无功功率的控制方法。
Instantaneous reactive power theory applied on harmonic and reactive current real-time detection is presented in this paper.
介绍了瞬时无功功率理论在谐波和无功电流实时检测方面的应用。
The significant factors which exert an influence on instantaneous fluctuation of motor current are in sequence :Vari-speed wave form, vari-speed amplitude and vari-speed frequency.
在变速参数中影响电机瞬时电流波动最为显著的因素依次为变速波形、变速幅度和变速频率。
A class of compensating current calculating circuit based on instantaneous power theory is presented.
介绍一类基于瞬时功率理论的实时无功电流计算电路。
The instantaneous voltage PID control inverter has advantage on circuit and cost, compared with voltage current dual-loop control inverter.
逆变器瞬时电压PID控制与电压电流双环控制相比,在电路结构、成本等方面更具优越性。
It is found that the gas flow is mainly controlled by instantaneous arc power and the maximum of gas flow appears not at peak pressure, but at current zero.
结果显示,气流的改变主要受电弧瞬时功率控制,最大流量不是发生于压力峰值时刻而是出现在电流过零时。
Adopting sinusoidal instantaneous voltage and current, a new algorithm for measuring sinusoidal electrical parameters has been put forward.
提出了一种利用正弦交流电压和电流的瞬时值测量正弦交流电参量的新算法。
The common methods of current measurement for motor are presented, for example, instantaneous value measurement, integral measurement, etc.
同时阐述了电动机电流测定的常用方法,如瞬时值的测定,积分测定等。
Based on the instantaneous reactive power theory, the method of detecting reactive current of agricultural power network is studied.
基于瞬时无功功率理论,对农用电网无功电流的检测方法进行了研究。
A unified model for harmonics and reactive current closed-loop or open-loop detection was established based on instantaneous reactive power theory.
基于瞬时无功功率理论建立了谐波及无功电流检测系统闭环、开环的统一模型。
A new method is proposed, based on the instantaneous reactive power theory, to detect high frequency harmonic current and instantaneous reactive current applying high pass filter simultaneously.
基于瞬时无功功率理论提出了一种应用高通滤波器同时检测高次谐波电流和无功电流的新方法。
In this paper, a simple and practical instantaneous harmonic current detecting method based on the phase distinguishing technology is introduced.
介绍了一种简单实用的基于鉴相原理的瞬时谐波电流检测方法。
Based on the instantaneous reactive power theory the method correctly detects the active positive-ord current from unsymmetrical currents and applies calculated command current to compensate system.
论述了利用瞬时无功功率理论从三相不对称电流中正确检测出三相正序有功电流,并用计算出的指令电流对系统进行补偿的原理。
How to define instantaneous reactive current and reactive power in three-phase non-sinusoidal asymmetrical systems is still a concerned problem by academia.
如何定义三相系统的瞬时无功电流、瞬时无功功率一直是学术界关心的问题。
The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.
应用瞬时值对称分量变换,可提取电压、电流故障分量的正序空间向量。
To improve the steady state operation and dynamic response, a dual-loop control strategy which incorporates the inductor current and the instantaneous output voltage has been used.
该方案采用电感电流和输出电压瞬时值双环控制,以提高输出稳定性和动态响应。
In the authors opinion, the poet denied the circulating time and linear time, while affirm the instantaneous time and current time.
本文认为,诗人否定了循环时间和线性时间,但肯定了作为“瞬时性”与“当下性”的时间。
The end point of titration is controlled by instantaneous titration controller and titre is measured by Mariotte constant current titrator and timer.
瞬时滴定控制器可准确地控制滴定终点,使分析结果准确可靠。
The end point of titration is controlled by instantaneous titration controller and titre is measured by Mariotte constant current titrator and timer.
瞬时滴定控制器可准确地控制滴定终点,使分析结果准确可靠。
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