On this basis, the influences to unbalance current of line tower type, wire parameters and phase sequence arrange are analyzed.
在此基础上分析线路塔型、导线参数、相序排列等因素对不平衡电流的影响。
The effect of track circuit unbalance current to the signal device in the electrified section and protection schemes are introduced in the paper.
论述了轨道电路不平衡问题对电化区段信号设备的影响及预防处理措施。
It has been proved in practice that the unbalance degree of the three-phase side current of this transformer can meet the requirements of the related regulations.
实践证明,这种变压器三相侧电流的不平衡程度可以满足有关规定。
Larger system voltage unbalance degree causes larger capacitor voltage pulsation and negative sequence current.
不对称度的增加将进一步增大电容电压的脉动和负序电流的大小。
The SVC can not only compensates the reactive power, but also dish the negative sequence current produced by the unbalance loads, which mostly depend on the control scheme.
静止无功补偿器(SVC)在补偿负荷无功的同时,还具备补偿三相负荷不平衡的能力,其关键在于SVC所采取的控制策略。
The characteristic of the torque and power loses are analyzed under the performance of unbalance operation, a current balance control method is brought forward and the experimental results are given.
分析了该电机工作在各种不平衡状态下的转矩与功率损耗的特性,提出了一种电流均衡控制方法,并且给出了试验结果。
The current unbalance between production and demand is due to a low proven resource base, a clear shortage of proven recoverable reserves, and a dramatic cxpan- sion in petroleum consumption.
目前产量与需求量严重失衡的主要问题在于资源探明程度低,探明可采储量严重不足,石油消费增长失控。
Based on this requirement, this paper introduced the theory of power quality monitoring, include RMS of voltage and current, power, three-phase unbalance, harmonic and flicker.
在此基础上研究了电能质量监测理论,详细介绍了电压电流有效值、功率、三相不平衡度、谐波和闪变的数字测量方法。
A new detection method for random harmonic current which was suitable for 3-wire and 3-phase unbalance system was put forward.
提出了一种适用于三相三线制不平衡系统的任意次谐波电流检测方法。
Establish the fuzzy set based on modulus component, three phases and residual current, which can distinguishing unbalance faults from power swing rapidly and reliably.
建立了基于模分量大小和三相及零序电流大小的模糊数学模型,能快速准确的识别振荡中发生的不对称故障。
The mechanism of current-unbalance of 1/2-level is analyzed in detail by simulation. By using current-feedback control, a new PWM control method with the capability of current-balance is proposed.
结合仿真,详细分析了产生1/2电平电流不均衡的机理,并提出了一种通过直流侧电流反馈来实现均流调节的脉宽调制(PWM)控制方法。
The mechanism of current-unbalance of 1/2-level is analyzed in detail by simulation. By using current-feedback control, a new PWM control method with the capability of current-balance is proposed.
结合仿真,详细分析了产生1/2电平电流不均衡的机理,并提出了一种通过直流侧电流反馈来实现均流调节的脉宽调制(PWM)控制方法。
应用推荐