子器件?4、续流二极管在全控桥整流电路和半控桥整流电路中的作用有何不同?5、 交流调压器的晶闸管常用
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答题(每小题6分,共30分)1、 有源逆变产生的条件?2、 电力变换包含哪些变换?3、 什么是电力电
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、基本术语(每小题3张家口58同城分,共15分)1、 导通角2、 维持电流3、 失控4、 换流5、 移相范围三、简
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的电流()。16、升压斩波电路中,已知电源电压ud=12v,导通比=1/3,则负载电压u0为()。二
de dian liu 16 sheng ya zhan bo dian lu zhong yi zhi dian yuan dian ya ud=12v dao tong bi =1/3 ze fu zai dian ya u0 wei er
、在型号kp200—14中,数字200—14表张家口58同城示()。15、晶闸管元件并联时,要保证每一路元件所分担
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两个电动势()相连。13、在无源逆变与直接斩波电路中,都必须设置(),强迫导通的晶闸管可靠关断。14
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可控整流电路中,如与不考虑漏抗相比,则使输出电压平均值()。12、在晶闸管有源逆变电路中,绝对不允许
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只有()的瞬时值大于负载的反电动势,整流桥路中的晶闸管才能随受正压而触发张家口58同城导通。11、考虑变压器漏抗的
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结构的半导体器件。9、()可控整流电路,是三相可控整流电路最基本的组成形式。10、在反电动势负载时,
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()。7、三相桥式可控整流电路适宜在()电压而电流不太大的场合使用。8、可关断张家口58同城晶闸管gto是一种()
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要的触发脉冲共有六个,它们在相位上依次相差()。6、将直流电能转换为交流电能馈送给交流电网的变换器是
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。4、igbt张家口58同城的开通与关断是由()控制的。5、三相全控桥式整流电路在宽脉冲触发方式下,一个周期内所需
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是在负载两端并联一个()。3、三相半波可控整流电路,电阻性负载,控制角为(),输出电流波形会出现零点
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且在门张家口58同城极与阴极间加()才能使其开通。2、单相半控桥式整流大负载电路中,为避免失控现象发生,采取的措施
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电力电子技术一、填空题(每空1分,共16分)1、处于阻断状态的晶闸管,只有在阳极与阴极间加正向电压,
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