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1)  sampling method based on median rule
中值规则采样法
1.
The pulse width of the key control signal SPWM is acquired by the sampling method based on median rule.
关键的控制信号SPWM的脉冲宽度采用中值规则采样法来求取。
2)  regular sampling
规则采样法
1.
In addition,the precision of tangent-sampling is compared with regular sampling.
介绍了用计算机控制的交流变频调速系统中产生SPWM波的一种新算法,阐述了该算法的原理,分析了该算法实时计算量及其采样精度,并与规则采样法作了比较。
3)  rule sampling method
规则采样法
1.
Three algorithms for SPWM waves are analyzed in this paper,which are symmetry rule sampling method, asymmetry rule sampling method and equiarea algorithm.
本文对SPWM波形生成的三种算法--对称规则采样法、不对称规则采样法和等效面积法分别加以分析,并通过高精度定点32位DSP微处理器TMS320F2812在线生成SPWM波形。
2.
Considering intermediate frequency Switching Mode Power Supply,we generate the three-phase SPWM waveform by rule sampling method based on TMS320F2812 DSP to control three-phase inverter and produce frequency-convertible sine voltage output.
针对频率可调中频开关电源,采用TMS320LF2812定点32位DSP芯片,通过规则采样法产生三相SPWM波控制三相逆变器,实现频率可调的正弦电压输出。
4)  regular sampling/nature sampling
规则采样法/自然采样法
5)  improved regular sampling method
改进规则采样法
1.
The harmonic analysis software and a hybrid active power filter with improved regular sampling method are described.
系统采用快速傅里叶变换进行谐波分析 ,并提出一种改进规则采样法对混合有源滤波器进行谐波跟踪控制 。
6)  Regular sampling
规则采样
1.
Comparing with regular sampling,the method increases sampling precision by little increasing in computational complex.
本文介绍了一种切线采样方法以产生三相SPWM波,与规则采样法相比,提高了采样精度,而计算的复杂度稍有增加。
2.
This paper introduces a new algorithm of SPWM sequence used in the AC motor s VF SR system with microcomputer, in which regular sampling can be improved.
该算法改进了规则采样法。
3.
This paper introduces the theory of PWM control, and specially analyses some methods of SPWM, including Natural Sampling, Regular Sampling, and so on.
介绍了脉宽调制(PWM)的原理,重点分析了各种正弦脉宽调制(SPWM)方法,其中包括自然采样法,规则采样法等,并利用基于DSP的脉宽调制实验平台对各种SPWM方法进行了比较分析,得出了一些有益的结果。
补充资料:净现值规则
净现值规则要求厂商应该从事净现值为正的投资项目。投资的净现值是投资未来现金流的现值减去投资的成本。

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