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【简答题】
逆变器按直流侧提供的电源的性质来分,可分为 _______ 型逆变器和 _________ 型逆变器,电压 型逆变器直流侧是电压源,通常由可控整流输出在最靠近逆变______ 电容 器进行滤波,电压型三相桥式逆变电路的换流是在桥路的 本桥_________换流,每只晶闸管导电的角度是 ____ 度;而电流型逆变器直流侧是电流源,通常由可控整流输出在最靠近逆变桥侧是用 电感 滤波,电流型三相桥式逆变电路换流是在 元件之间元件之间换流,每只晶闸管导电的角度是 ______ 度。
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