电压建立 meaning in English
build-up of voltage
Examples
- Choosing suitable feedback and bias voltage and creating a electrostatic servo system will raise the quantity range and stability
选择合适的反馈系数和偏置电压建立闭环控制系统,可以大大提高传感器的量程和稳定性。 - The main job of this research is : ( 1 ) analyze the operation situation of power system during faults ; pay attention to the traveling wave on the three - phase transmission line ; study the equation of voltage on three - phase transmission line with impedance capacitance coupling between phases ; contact the voltage on any point with the fault voltage , study the singularity of the voltage signal in fault point , and make it to be the base of the new fault detection method ; ( 2 ) apply the singularity detection theory based on wavelet analysis to the power system faults detection , give a complementary criterion to current fault detection criterion , study how to select the basic wavelet , how to filter noise , how to detect the singular point or fault point , and finally give a total solution . the simulations prove it to be a quick , correct and effective fault detection method
本文的主要工作有： ( 1 )分析电力系统在发生故障时的运行状态，尤其对三相传输线上的故障行波进行了分析和研究，推导了考虑相间耦合的三相传输线电压方程，并将传输线上任一点的电压与故障点电压建立起联系，得出了传输线上电压信号在故障点处的奇异性，并以此作为构造新的故障检测算法的理论基础； ( 2 )将基于小波变换的信号奇异性检测理论运用于电力系统故障检测中，针对目前相关研究的不足，提出了电力系统故障检测判据的补充判据，通过对基本小波的选择、除噪措施、信号奇异点也即故障点的检测方法所作的分析，给出了一个可行的解决方案；仿真研究表明：这是一个快速、准确、有效的故障检测算法。 - Because central potentials of four y windings in 12 - phase generator are not equal each other and there is no common reference inside the generator , it is difficult to identify the on / off of rectifying elements . in this paper , by using a mathematical model with line voltage substitute for phase voltage , the problem that there is no common reference in the 12 - phase generator with rectifier is solved . based on results of the studies on small prototype , 920kw charging generator applied in a submarine is improved in design , and therefore power oscillation with high magnitude when two generators are operating in parallel
由于十二相发电机中四个y绕组的中点电位不等，电机内部没有公共参考点，从而在判断整流元件导通时，不能象三相同步发电机整流系统那样认为阳极电位最高或阴极电位最低的整流元件导通，本文采用了以线电压代替相电压建立十二相整流发电机的数学模型，从而解决了十二相发电机无公共参考点的问题。