Ely the analysis, this thesis gave a strategy orientation, future strategy modulation and specific strategy measures for the corporation in this case.
在此基础上,提出企业的战略定位,以及今后战略调整的方向和具体战略对策。
A photovoltaic pump system based on a new Z-source inverter, whose theory and control strategy of space vector pulse width modulation (SVPWM) with short through states were introduced.
提出了一种基于新型Z源逆变器的光伏水泵系统,阐述了Z源逆变器的工作原理及其带直通零矢量的SVPWM控制策略。
By analyzing the process of the inversion, the control strategy of resonant switch and clamped switch modulation with current hysteresis control is discussed.
通过对其换流过程的分析,提出了采用谐振开关控制,箝位开关控制的电流滞环控制的调制方式的策略。
In the second place, controlling using strategy of system parameter switching modulation in two hyperchaotic circuits is studied.
其次,采用系统参数开关调制策略,研究了两个超混沌电路的控制问题。
The key technology in it, such as interference discrimination, self-adaptive modulation strategy and channel quality estimation are discussed in this paper particularly.
对其中的关键技术:干扰辨识、自适应调制策略和信道质量估计进行了详细的讨论。
In order to study the strategy of input current modulation, the simulation model of matrix converter under unbalanced input is built with MATLAB.
通过参数设定、输入电压相位计算、控制算法实现和开关接口等环节设计,实现了输入电流偏置角动态调整的控制策略。
Next, the mix control strategy were analyzed in detail, which is the control method of combining the space vector pulse width modulation and the rotor magnetic filed directional control.
接下来,本文重点分析了基于矢量调制的组合控制策略,即将矩阵变换器的空间矢量脉宽调制和电动机转子磁场矢量控制有机结合的控制方法。
The concerted control strategy of rectifier and inverter is analyzed to keep high modulation degree of SPWM, which achieves quick response and high resolution of excitation voltage regulation.
重点分析了整流器和逆变器的协调控制策略,始终保持SPWM高调制度,达到励磁电压调节的快速响应和高分辨率。
A new direct torque control (DTC) strategy of induction motors based on fuzzy space vector modulation (SVM) technology was proposed.
提出了一种基于模糊空间矢量调制(SVM)技术的异步电机直接转矩控制(DTC)方案。
Phase disposition modulation is selected as control strategy, which is digitally realized by EPWM module of DSP.
控制策略选用的是同相载波层叠调制,并且利用DSP的EPWM模块进行了数字化的实现。
It is detailed to analyze two kinds of control strategy, -spwm and HCPM (Hysteresis Controlled Pulse Modulation).
本文详细分析两种控制策略—SPWM控制和滞环控制。
Based on the power supply for railway signal system, this dissertation investigates an inverter controlled by the strategy of unipolar modulation.
本文以铁道信号电源为背景,研究了一种单极性调制的逆变电源。
The sample-time-staggered space vector modulation (STS-SVM) is a novel modulation strategy with high performance.
错时采样空间矢量调制(STS-SVM)技术是一种高品质的新型调制技术。
The results of the experiment successfully show that it can realize the modulation of the frequency of the output voltage. meanwhile, it validates the feasibility of four-step commutation strategy.
实验结果表明本实验装置系统能成功实现对输出电压和频率进行调节,进一步验证了四步换流技术的可行性。
The simulation and experiment results are found to be mostly in agreement with the presented theories, whereby the new modulation strategy is feasible and superior in its performances.
仿真和实验结果与理论分析一致,证明了该新型调制策略的可行性和优越性。
The new three-phase drive control strategy SITRAC combines dynamic torque control, robustness and optimized modulation withselfadjustment and allows speed sensorless operation.
新的交流传动调节方法SITRAC融合动力学、耐用性和具有自调节的最佳调制为一体,其运行可不用速度传感器。
The sinusoidal pulse-width modulation (SPWM) control strategy is employed in the inverter of proposed converter to achieve well dynamic regulation.
正弦脉宽调制(SPWM)控制策略,采用建议的逆变器转换器来实现良好的动态调节。
The front stage uses the single-voltage-mode control strategy and the back stage uses the three states discrete pulse modulation hysteresis current control strategy.
前级采用电压单环调制方式,后级采用三态滞环离散脉冲调制电流滞环跟踪控制技术。
Voltage space vector PWM is an optimal modulation strategy.
电压空间矢量脉宽调制是一种先进的调制方法。
By analyzing the current ripple of the filter inductor on the condition that the phase shift is different, the reduced value of the current ripple with the interleaving modulation strategy can be got.
通过分析变换器在不同开关相角下滤波电感电流脉动的大小,得出了在同样的电流脉动要求下,采用交错开关方式与采用传统开关方式相比,滤波电感可减小的幅度。
To reduce the low speed torque ripple of induction motor based on direct torque control (DTC), a new control strategy-improved discrete space vector modulation is proposed.
针对传统的异步电机直接转矩控制在低速时存在转矩脉动较大的问题,提出了一种减小转矩脉动的直接转矩控制方法。
To reduce the low speed torque ripple of induction motor based on direct torque control (DTC), a new control strategy-improved discrete space vector modulation is proposed.
针对传统的异步电机直接转矩控制在低速时存在转矩脉动较大的问题,提出了一种减小转矩脉动的直接转矩控制方法。
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