zero-sequence造句
例句与造句
- A study of adaptive zero - sequence current protection
自适应零序电流保护的研究 - In this thesis , we study the exponents of convergence of the zero - sequence and the hyper - order of solutions of linear differential equations
本文研究了线性微分方程解的零点收敛指数和超级。 - Under some conditions , we obtain the precise estimates of the orders of growth and of the exponents of convergence of the zero - sequence of the solutions of the above equations
在一定的条件下，得到了上述方程解的增长级与零点收敛指数的精确估计。 - In chapter 2 , we investigate the problem on the orders of growth and the convergences of the zero - sequence of the solutions of second linear differential equations with entire coefficients to the functions with smaller order of growth
其中第二章研究了二阶整函数系数线性微分方程的解取慢增长函数时的增长级与零点收敛的问题；第三章研究了一类高阶亚纯系数线性微分方程解的超级。 - Main functions : 3 - stage complex - voltage blocked overcurrent protection , 3 - stage zero - sequence overcurrent protection , clearance discharging zero - sequence overcurrent protection , zero - sequence overvoltage protection , overvoltage alarming , overload alarming , fan start stop , tap changer blocking , pt wire broken blocking and alarming , etc
其保护配置：复合电压闭锁过流段保护，零序过流段保护，间隙放电零序过流保护，零序过压保护。 - It's difficult to find zero-sequence in a sentence. 用zero-sequence造句挺难的
- This article has studied the deficiency and shortcoming of various kinds of methods of the parameter measurement of transmission line at present , proposed the measurement under operation on the basis of gps , researched gps application way and error that may appear in the power system synchronal sampling , put forward the parameter computing technology based on the information of both sides of transmission line , which solved some problems that exist in the parameter measurement , especially the problem that exist in the zero - sequence parameter measurement of transmission line with mutual inductance
本文研究了目前输电线路参数测量的各种方法，分析了其中存在的不足和缺点，提出了基于gps的输电线路参数在线测量方法，研究分析了gps在电力系统同步采样中的应用方式以及可能出现的误差，在同步采样的基础上提出了基于双端信息的线路参数计算方法，较好地解决了输电线路参数测量中存在的一些问题，尤其是多回互感线路零序参数测量困难的问题。 - In order to optimize the modulation performance , the relationships between the modulation signals ( include fundamental signals and zero - sequence signal ) and space vectors , between the modulation signals and space - vector sectors were discussed , then three kinds of optimal switching pattern of space - vector modulation are established
文章首先从研究svpwm调制中零序信号与零电压矢量和非零电压矢量之间的关系这一独特角度出发，探讨了svpwm的优化调制方法，找出了三种开关损耗小、适用于高频化逆变器的优化开关模式。 - In chapter 2 , we discuss the problem of the relationship between the solution of non - homogeneous linear differential and small function . in chapter 3 , we investigated the relationship between exponent of convergence to zero - sequence of the solution of certain homogeneous linear differential equation f ( k ) + a ( z ) f = 0 and the order of growth of a ( z )
其中第二部分讨论了非齐次线性微分方程解取小函数的收敛指数，第三部分研究了齐次线性微分方程f ~ ( k ) + a ( z ) f = 0的解的零点收敛指数与a ( z )的级的关系 - To resolve the situation that the sensitivity of present ground fault protection schemes is low for the large - sized hydro - generators , a kind of protection scheme based on the fault component of third - harmonic voltage and two kinds of protection scheme based on the fault component of zero - sequence voltage at the terminals and neutral are developed , and they can obtain higher sensitivity and reliability and provide 100 % protection for the stator windings . the influence of noise on the stator ground fault protection based on the local modulus maximum of wavelet transform is analyzed
针对目前大型水轮发电机定子绕组单相接地保护灵敏度偏低的问题，通过分析单相接地故障后机端和中性点零序电压的变化特点，提出了一种基于机端和中性点三次谐波电压故障分量和两种基于机端和中性点零序电压故障分量的高灵敏度、高可靠性保护方案，并实现定子绕组的100 %保护。 - The device can protect start - up status and running status of asynchronous motors by differential protection , over current protection , negative - sequence current protection , zero - sequence current protection , inverse time current protection , under - voltage protection and so on , can measure every kind of electricity , and can process the function of telecontrol , telemetering and telecommunication
其依靠电流差动、速断、负序过流、反时限、零序过流和低电压等保护方法实现了片电动机的运行、启动和自启动过程进行保护，并实现各种电量的计量，同时具有遥控、遥测、遥信的功能。