Three unbalanced phase loads varies randomly to lead to three phases unbalance in low voltage distribution system, which brings a series of problems on power grid.
在电网中，三相负荷随机变化，产生三相不平衡，从而给电网带来了一系列的问题。
Three unbalanced phase loads varies randomly to lead to three phases unbalance in middle and low voltage distribution system, whi ch brings a series of problems on power grid.
在中低压配电网中，三相负荷随机变化，产生三相不平衡，从而给电网带来了一系列的问题。
The drive system includes motor, transmission, brake, transmission, etc... One end of the main shaft is provided with an Angle plate, which is used to indicate the unbalanced phase of the workpiece.
驱动系统包括电机、传动装置、制动装置、传动方式等。主轴的一端安装角度盘，用来指示工件不平衡相位。
Ways of balancing the phase current of an induction motor operating with unbalanced supply and fault diagnostics of the thyristors are discussed.
提出了在异步电动机供电不平衡的情况下平衡相间电流的方法，给出了晶闸管故障检测的方法。
The original inheritance way is hand-mouth phase mass, now is mainly scattered and unbalanced, the school education is the new attempt of Manchu tearing paper.
剪纸原始的家族传承方式是手口相传，现阶段主要是分散的、不均衡的传承方式，而学校教育是传承满族撕纸的新尝试。
The operation of unbalanced three-phase loads of distribution network will increase power loss.
配电网三相负荷不平衡运行将增加配电网的电能损耗。
This paper presents a new converter control algorithm for the direct drive permanent magnet wind generator under the unbalanced three-phase source voltage.
提出了一种用于电网侧三相电压不平衡情况下的永磁直驱式风力发电机的逆变控制算法。
The polarized light interferometer is also a kind of unbalanced interferometer which can convert the Bragg wavelength shifts into interferometer phase shifts.
偏振光干涉仪也是一种能将布拉格波长移动转化为干涉相位变化的非平衡干涉仪。
Magnitudes and phase values of unbalanced weights are obtained directly by sampling the vibration signal synchronized with reference signal.
采用基准信号作触发，分别对内、外转子进行同步采样，就可直接获取各转子相应的振动幅值和相位。
In accordance with the feature of three phase unbalanced loads, this article describes the correction principle of reactive power and the control system of single board computer.
本文针对三相不平衡负载特点，介绍了无功功率补偿原理和单板机控制系统。
The key of rotor balance lies in picking up the amplitude and phase of the rotor's unbalanced vibration.
转子动平衡的关键是提取转子不平衡振动的振幅与相位。
Phase components method may offer advantages in the analysis of unbalanced three-phase networks.
使用相分量方法在分析电力系统三相不对称网络时更加方便。
This paper analyses and compares detecting techniques of compensating currents in three-phase balanced and unbalanced systems.
对其利、偿电流在三相平衡和不平衡系统下的检测技术进行分析和比较。
The interpretation of active and reactive currents in non-sinusoidal and unbalanced three-phase four-wire systems is given based on the generalized instantaneous reactive power theory.
以通用瞬时无功功率理论为基础，阐述了电压不对称和非正弦条件时的有功和无功电流的物理意义。
The unbalanced degrees of current in primary winding under different load conditions are discussed, which are based on the general expressions of negative phase sequence current.
结合负序电流的通用表达式，讨论了在不同负荷条件下的原边电流不平衡度。
Three-phase unbalanced voltages have great effects on the performance of a line-start permanent magnet synchronous motor.
三相电压不对称对永磁同步电动机的性能影响较大。
The factors influencing the control system based on three-phase VSR are analyzed, and some theory strategies for the control system design in unbalanced power grid are provided.
通过对三相VSR在电网不平衡条件下影响其控制的因素分析，为设计三相VSR在电网不平衡条件下的控制策略提供理论基础。
Active power filter can compensate current components which include distortion and negative sequence current components when it is used in unbalanced three-phase circuit.
电力有源滤波器能动态补偿不对称三相电路的畸变电流、负序电流分量。
The control principle, design idea and engineering fulfilment of TCT static var compensator in unbalanced three-phase system are introduced.
介绍了三相不平衡系统静止型动态无功补偿装置的控制原理、设计思想及工程实现。
The reactive power and current of three-phase unbalanced load are compensated.
配电网三相负荷不平衡运行将增加配电网的电能损耗。
The experimental results show that the detection method based on the FBD method can be used in unbalanced three-phase three-wire power systems.
实验结果表明，可以用在不平衡三相三线电源系统的检测方法基于FBD法。
And some indexes of power quality: voltage deviation, real power, reactive power, harmonic content, voltage fluctuation and unbalanced three-phase voltage and current, are discussed at length.
同时本文对电能质量的有关指标：电压偏差、频率偏差、各种功率、谐波含量、电压波动和三相不平衡的计算和检测方法，进行了详尽地阐述。
And put up the compensation mode points of ingle-phase compensation and three-phase compensation together, it's more reasonable of adjustment in the three-phase reactive unbalanced situation.
并且提出以三相共补和单相分补的配合补偿方式，实现在三相无功不平衡的情况下，使无功调节更趋于合理。
The hybrid method of compensation:three-phase compensation and split-phase compensation is used to achieve a three-phase unbalanced load reactive power compensation;
采用三相共补与分相补偿的混合补偿方式，实现对三相负载不平衡的无功补偿；
Electric Arc Furnace (EAF) used in metallurgy industry often causes unbalanced three-phase load power, and therefore generates severs flicker to the grid, which seriously impact the power quality.
在冶金工业中使用的电弧炉可引起电网三相负荷不平衡，产生谐波引起电流闪变，严重影响电网电能质量。
This paper presents a new control strategy to eliminate second harmonic of dc output current in the 3-phase unbalanced network voltage PWM current-source converters (CSC).
提出一种电网电压不对称情况下抑制三相脉宽调制(PWM)电流型变流器(CSC)直流输出电流二次谐波、减少网侧电流低次谐波的控制方法。
The PWM control strategy with 3-th harmonic in addition is presented for four-leg three-phase inverter, the inverter can deal with unbalanced load and has a high utilization of dc bus voltage.
本文将三次谐波注入的PWM控制方案应用到四桥臂三相逆变器中，可以带非对称负载且具有较高的电压利用率。
The PWM control strategy with 3-th harmonic in addition is presented for four-leg three-phase inverter, the inverter can deal with unbalanced load and has a high utilization of dc bus voltage.
本文将三次谐波注入的PWM控制方案应用到四桥臂三相逆变器中，可以带非对称负载且具有较高的电压利用率。
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