零矢量

词组短语

zero vector

与零矢量相关的网络例句 [注：此内容来源于网络，仅供参考]

It used chebyshev polynomials to calculate sine function for improving its accuracy. It adopted optimized null vector distribution strategy to decrease switching times and switching current.

其采用Chebyshev多项式计算三角函数，提高了运算精度；采用零矢量象限间交错分布的优化策略，以减小开关次数，降低开关电流。

Also in this paper, the magnitude of the common-mode voltage of the system is analyzed and the method of choosing reasonable zero-vectors to restrain the common-mode voltage is presented.

详细分析了基于该控制策略的电机共模电压大小，提出了合理选用零矢量以降低电机共模电压幅值的方法。

At last, the influence of modulation index and zero-vector distribution variable on the modulation signal and output voltage harmonic characteristics of the three-phase inverter is investigated.

对SVPWM常规算法和快速算法进行了综合分析，并给出了其数字化实现方法；针对不同的零矢量分配因子和不同的调制比，对三相SVPWM逆变器的调制信号及其输出电压谐波特性进行了比较分析。

An input phase voltage is divided into a main range and a transition range in which new P, M, N conditions and PM, NP, MN transition conditions are defined, some null vector is selected and the condition combination sequence of bidirectional power switches are adjusted in each modulation period to realize the safe, reliable and rapid commutation and the stable operation of the matrix converter.

本发明属于矩阵变换器控制技术，为一种用于矩阵变换器的控制方法，通过把输入相电压划分为主区间和过渡区间、在过渡区间定义新的P、M、N状态和PM、NP、MN暂态以及在每个调制周期内选择特定的零矢量并调整双向功率开关状态组合顺序，实现矩阵变换器安全、可靠、快速换流和稳定运行。

Based on this model, interaction between the parallel grid-connected inverters is analyzed and the influence on circulating current when it is adopted zero vector with space vector pulse width modulation is also analysed.

在这模型的基础上，分析并网逆变器并联运行时的相互影响；分析了并网逆变器采用间矢量脉宽调制算法时零矢量对环流的影响。

A new SVM method suitable for four-switch inverter fed PMSM DTC system was proposed. By analyzing the property of the equivalent zero space vector and its imitation scheme in detail, the paper introduced a zero-vector partition idea, which is usually adopted in the SVPWM modulation, to the composition of desired space vector.

该文针对四开关逆变器供电PMSM DTC系统的特殊性，采用了一种新型SVM方法，分析了等效零矢量模拟技术，将传统SVPWM调制中的劈零思想引入到空间矢量的合成上。

After transformation, larger coefficients lie on those pixels with smaller distance according to the zero vector.

变换后，较大的变换系数集中在四维子矩阵中下标矢量与零矢量距离较小的元素上。

By theory analysis and using zero voltage vector,a PMSM DTC control system model has been established in Matlab,and the simulation study shows that zero voltage vector can effectively diminish the torque ripple and improve the system performance.

在理论分析的基础上采用零矢量的控制方案，建立了基于Matlab/Simulink的PMSM直接转矩控制伺服系统模型。仿真结果验证了加入零电压矢量可以有效地抑制转矩脉动，提高系统性能。

The main works include: The topology structure and the switching function of the TSMC,the widely employed space vector modulation strategy without zero vector at rectifier stage and the transrectification of the TSMC were introduced.

论文的主要工作包括：介绍了TSMC的拓扑结构和开关传递函数、目前普遍采用的整流级无零矢量的空间矢量调制策略以及TSMC的换流。

Second,. according to the sector of voltage space vectors, adjacent switching state vectors are selected to calculate on-durations under volt-second balance principle. The questions of judging sectors and sector transition are discussed and qualitative analysis of performance is carried out.

由三相电压源型逆变器输出电压波形得到六个有效开关状态矢量，这六个开关矢量和两个零矢量合成一组等幅不同相的电压空间矢量，去逼近圆形旋转磁场。

与零矢量相关的网络解释 [注：此内容来源于网络，仅供参考]

central force：有心力

可以证明1.行星受太阳引力作用,这个力始终指向太阳中心,此为有心力(central force)作用于行星,此力对太阳中心的力矩为零. 因此行星对太阳中心参考点的角动量守恒:r× mv=恒矢量L(r 为太阳中心到行星的矢径,

Nonzero voltage space vector：非零电压矢量

电压空间矢量:voltage space vector | 非零电压矢量:Nonzero voltage space vector | 空间电压矢量:space voltage vector

null set：空集,零集

null hypothesis 原假设,零假设,虚假设 | null set 空集,零集 | null vector 零向量,零矢量

null vector：零向量,零矢量

null set 空集,零集 | null vector 零向量,零矢量 | number pattern 数型

Systolic Array：脉动阵列

处理速度的脉动阵列(systolic array)结构来实现QR-RLS算法.通过建立以最优干扰抑制器权矢量为状态矢量的状态方程和以期望信号的多线性回归模型为观测方程得到实现最优干扰抑制的Kalman滤波.以上自适应方法的不足是需要期望信号.本文通过约束矩阵的零空间矩阵将约束MMOE问题转化为低维无约束MMSE问题,

zero vector：零矢量

zero state 零状态 | zero vector 零矢量 | zeroing 调整零点

Zero Voltage Vector：零电压矢量

空间电压矢量:voltage spave-vector | 零电压矢量:Zero Voltage Vector | 电压空间矢量控制:voltage space vector control

zeroing：调整零点

zero vector 零矢量 | zeroing 调整零点 | Zinsser inconsistency 津泽不协调现象 津泽不协调现象

Cyclical fluctuations：周期性波动 周期性变动

cyclical field || 循环场, 周期场, 旋场(旋度不等于零的矢量场) | cyclical fluctuations || 周期性波动 周期性变动 | cyclical income index || 周期性收入指数

Shoot apex of Cotton：棉花茎尖

不定芽分化:adventitious shoot differentiation | 棉花茎尖:Shoot apex of Cotton | 短路零矢量:shoot through zero state