field weakening ratioとは 意味・読み方・使い方

As shown in Fig. (c), in a region that the number of target rotations exceeds the number Rb of base rotations, an inverter and the booster are controlled by a field-weakening current and a boosting ratio in which the sum of a field-weakening loss and a boosting loss becomes the minimum.例文帳に追加

目標回転数が基底回転数Ｒｂを超える領域において、弱め界磁損失と昇圧損失との和が最小となる弱め界磁電流と昇圧比によりインバータと昇圧器を制御する（図６の（ｃ））。 - 特許庁

On the other hand, a d-axis correction current setting means 38a sets a field weakening current (a d-axis current) according to a voltage saturation (a duty ratio=driving voltage of the electric motor/power supply voltage) output from a voltage saturation calculating means.例文帳に追加

一方、ｄ軸補正電流設定手段３８ａは、電圧飽和度算出手段から出力された電圧飽和度（デューティ比＝電動機の駆動電圧／電源電圧）に応じて界磁弱め電流（ｄ軸電流）を設定する。 - 特許庁