正弦表 meaning in Chinese

sine table
table of sines

In this section , with time _ sharing method and the symmetry of sine wave , the look - up table needed to generate three - phase sine wave is reduced to one twelfth of the table before , and the optimization will have no any effect on precision , at the same time , the generation way of the monopolar spwm is improved
在这一部分，还对产生二相正弦波的正弦表进行了优化，利用分时复用和正弦波的对称性，把所需的正弦表减少为原来的1 / 12 ，并保持优化后的精度不变。同时改进了单极性spwm的产生方法。
This paper put forward a method of using amending sine value in the spwm sine table . this method can correct the distortion of the output voltage waveform , which resulted from the dead time used to the voltage type whole bridge main circuit . the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable , so dynamic response is improved
本文提出了一种采用修补spwm正弦表值的方法，用以改善电压型全桥逆变主电路因上下桥的功率器件切换时先关断后导通的死区时间而引起的输出电压波形畸变；逆变系统采用带前馈校正的变比例变积分系数的模糊控制器，提高了系统的动态响应指标；系统设计了完善的保护措施，并具有市电电网的故障诊断功能。