控制策略有阶梯波法、载波相移法和电压空间矢量法等。
There are many control strategy, such as stair waveform, carrier phase shift, voltage space vector and so on.
而空间矢量法谐波特性好、电压利用率高、控制方法简单便于数字实现。
SVPWM has low harmonic and high voltage utilization. The control method is simple and easy for digital realization.
并以三电平逆变器为例，推导了三角载波调制法和空间矢量法的本质联系。
And to three-level inverter as an example, the nature contact of the triangular-carrier modulation method and space vector method is derived.
介绍了目前国内外几种主要电磁暂态计算方法。对贝杰龙法和空间矢量法作了重点的介绍和评价。
Some transient computation methods presently used, particularly the methods of Begeron and space phasor components are introduced and evaluated in this paper.
然后是三相四线制无功补偿发生器的理论基础（主要是瞬时无功功率理论和IGBT脉冲产生的空间矢量法）；
Thirdly, this paper introduces academic base used in this equipment , mainly are instantaneous Var power theory and Special Vector Method for generating pulse used springing IGBT;
不同于传统的模拟滞环比较器，采用基于三维空间矢量脉宽调制(3dSVPWM)法控制补偿电流的产生。
Instead of the conventional analog hysteresis comparator, the compensatory current is produced by 3-dimensional space vector modulation (3d SVPWM) technique.
为了计算周期结构包层多孔光纤的等效阶跃折射率，采用了全矢量基本空间充填模式法。
In order to calculate the equivalent step index of the periodic structure of the cladding holey optical fiber, all-vectorial fundamental space filling mode approach was utilized.
较详细地论证了空间等值线和矢量轨迹线在定量解释中应用的基本方法——量扳法。
Then the application of the spatial contour and the vector track in quantitative interpretation was discussed in detail.
把空间矢量数据的压缩方法道格拉斯-普克法引入到断面数据的抽稀处理中，并对算法进行改进。
This paper introduced the method of vector data compression-Douglas-Peucher algorithm into profile data compression and improved the algorithm.
提出一种矢量压缩编码新方法—矢量线上投影法，它将输入矢量用它在某条空间直线上的投影近似表示。
The dissertation proposes a novel method for vector coding, i. e. Vector Projection method, which approximately represents a vector with the orthogonal projection of its endpoint onto a straight line.
在传统的PWM整流控制的基础上，论文利用开关函数建模法，提出了基于预测电流的PWM电压空间矢量控制方法。
Based on the traditional control on PWM rectifier, space vector PWM predictive current controller is presented using the switching function model.
采用D-H后置法建立了4R机器人运动方程，建立机器人执行机构在空间相对位置关系的数学模型，由此可解出手部位置和用单位矢量方向余弦表示的姿态。
A kinematics model by post D-H method for 4R-robot was offered in this paper, which derived the manipulator finger position and its attitude with unit vectors of direction cosine.
利用该耦合方程对空间三波导和四波导进行求解，得出场分布的解析表达式，并用三维全矢量光束传输法验证了分析结果。
The analytical intensity distributions in the two specific cases are given, and the three-dimensional full-vector beam propagation method is used to verify the analytical results.
其次，基于CR列式法推导出了大旋转小应变空间杆单元及平面梁单元的内力矢量及切线刚度矩阵；
Then, based on the CR formulation, the internal force vector and tangent stiffness matrix of large rotation and small strain space bar and plane beam element are deduced.
从有限高斯背景下空间暗光孤子诱导折射率分布出发，用等效衰减矢量法得到它所自诱导的波导的色散特性。
We use the equal-attenuation-vector method, to numerically study dispersion characters of dark spatial soliton induced waveguide under limited background.
把空间矢量数据的压缩方法道格拉斯-普克法引入到断面数据的抽稀处理中，并对算法进行改进。
The thesis introduces the method of vector data compression-Douglas-Peucker algorithm into profile data compression, and makes the improvement to the algorithm.
该系统主电路采用三电平PWM变频器，以16位单片机80 98为核心组成数字控制系统，并采用空间电压矢量法的控制方法。
The device uses three-level PWM transducer as the main electric circuit of the system, 16 bits CPU 8098 as the the core of the digital control system.
与传统图解法相比，极坐标矢量法设计空间凸轮廓线工作量减少了约5 0 %，并有利于凸轮廓线的精确数控加工。
Comparing to the traditional graphic method, the workload of new method is about 50% less than that of the graphic method and it is more suitable for the numerical controlled manufacturing.
与传统图解法相比，极坐标矢量法设计空间凸轮廓线工作量减少了约5 0 %，并有利于凸轮廓线的精确数控加工。
Comparing to the traditional graphic method, the workload of new method is about 50% less than that of the graphic method and it is more suitable for the numerical controlled manufacturing.
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