常見例句雙語(yǔ)例句In this paper, instantaneous reactive power theory using in three-phase four-wire system was discussed at first.討論了在三相四線制系統(tǒng)中瞬時(shí)無功功率理論和有源電力濾波器的研究結(jié)果。A method to compensate the reactive power in three-phase four-line system by using three-phase four-leg inverters is put forward.提出采用三相四橋臂結(jié)構(gòu)的逆變器實(shí)現(xiàn)三相四線制系統(tǒng)中的無功補(bǔ)償。Artificial Neural Net (ANN) applied to estimation for short-circuit characters in three-phase power system, such as impact current, equivalent coefficient and thermal stress etc;人工神經(jīng)網(wǎng)絡(luò)(ANN)用于三相短路電流特征值估計(jì),如沖擊電路、等效系數(shù)及熱效應(yīng)等; 返回 power in three-phase system