The relations of the amplitude and the phase of the injected voltage by the series converter of the UPFC are defined in difference control patterns.
确定了统一潮流控制器在不同调节控制方式下所对应的串联注入电压幅值和相位关系。
It integrates advantages of present schemes and avoids the unreasonable blocking for single unqualified parameter, such as the frequency difference, the phase difference or the voltage difference.
该方法综合了现有方案的长处，可避免单一参数(频率差、相角差或电压差)不满足就闭锁快切的弊端。
The difference of output voltage of inverter and 220v is set as control signal, controller change the PWM signal to regulate buck-boost converter and three-phase rectifier.
以逆变器输出的电压和220v的差值作为控制信号。设计控制器根据控制信号改变直流变换器和三相可控整流的PWM控制信号。
Several issues of power quality are presented, including harmonics, reactive power, three phase unbalance, large difference between peak load and vale load, voltage disturbance and so on.
第一章简单介绍了目前电网存在的几种问题，包括谐波问题、无功问题、三相不平衡问题、用电峰谷差过大的问题以及电压异常、断电问题等；
This paper mainly studies the coupling error caused by induction voltage phase difference, and fluctuation of directional sensitivity caused by changes in near-field difference slope.
本文着重研究了因近场感应电压相位差引起的耦合误差，以及近场天线差斜率变化引起的定向灵敏度的变化；
The voltage difference of same-phase caused by different transformer wiring group was analysed. And the solving method was also provided in this paper.
分析变压器由于接线组别的不同引起的各个同相的电压差，以及解决方法。
Finally, this paper analyzes the influence to the current value after operations led by the variations of bus node voltage phase Angle difference and amplitude difference.
最后分析了母线节点的电压相角差和幅值差变化对合环后电流分布的影响。
The key to the detection of MOA resistive current is the detection of the phase difference between fundamental component of voltage and fundamental component of leakage current.
MOA阻性电流检测的关键在于电压基波分量与泄漏电流基波分量相位差的检测。
At the same time, the rest voltage of the motor may be 50% of normal input voltage and the phase difference with power supply switched can be up to 180 degrees.
同时，马达的休息电压也许是50%正常输入电压，并且相差与被交换的电源可以是180度。
If the signals are out-of-phase the output will be a DC voltage that is proportional to the phase difference between the two inputs.
如果信号的相位有差别就会输出一个DC(直流)电压，这个电压正比于两个输入间的相位差。
If the signals are out-of-phase the output will be a DC voltage that is proportional to the phase difference between the two inputs.
如果信号的相位有差别就会输出一个DC(直流)电压，这个电压正比于两个输入间的相位差。
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