例句與造句

1. Through theoretic reckoning and simulating analyzing , several control strategies for shunt apf were compared and chose ip - iq arithmetic of the instantaneous reactive power theory control strategy as the right scheme to produce the instructing current . based on it , some new control arithmetic was subjoined to suppress the resonance in system and balance the dc side capacitor voltage . two topologies of main circuit were compared and chose the three - phase voltage - source converter with a split - capacitor as its main circuit structure
   通過理論計算和仿真分析，比較了并聯(lián)型apf的幾種控制策略的優(yōu)點和缺點，從中選擇瞬時無功理論控制策略i _ p - i _ q計算方式為指令電流產(chǎn)生的算法，并在此基礎(chǔ)上增加了抑制系統(tǒng)諧振和平衡直流側(cè)電容電壓的控制；比較了并聯(lián)型apf主電路的兩種常見形式，從中選擇了三相電壓型變流器的主電路形式；算出適合該apf的直流側(cè)電容和出線電感的參數(shù)；設(shè)計出能有效消除apf產(chǎn)生的高次諧波的高通濾波器。
2. It's difficult to find voltage-source converter in a sentence. 用voltage-source converter造句挺難的