[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fyAFrKpZ4C9s8YY2UNdFA_8Fmb9YFjvzgsVstc7Dr100":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-06-10 20:01:10",150092460,[8,9,10,11],"蓄电池","电感","电容","电动机",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},34,"95dc68bdc6041331c95ab5b5ced9f47b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48eba3395437dd881b1b9275a0ad1028.png","电力电子技术","work_35536188","chapter 12 test","电流型逆变器中间直流环节贮能元件是( )",[21,33,42,51,54,59,66,71,80,85],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-06-10 20:01:09",150092457,[26,27,28,29],"采用的功率半导体器件不同","将交流电变成直流电","把直流电变成交流电","负载不同","下列哪一个是无源逆变和有源逆变电路的不同点?( )","v1",0,{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":31,"type":32},[],150092458,[37,38,39,40],"选择3","选择1","选择2","选择4","可实现有源逆变的电路为 . A、三相半波可控整流电路, B、三相半控桥整流桥电路, C、单相全控桥接续流二极管电路, D、单相半控桥整流电路",{"answer":43,"createTime":5,"id":44,"options":45,"question":50,"source":31,"type":32},[],150092459,[46,47,48,49],"直流侧为电压源","交流侧输出电流波形和相位因负载阻抗情况的不同而不同","直流侧串联一个大电感","交流侧输出电压波形为矩形波,并且与负载阻抗角无关","下列哪一个不是电压型逆变电路的特点?( )",{"answer":52,"createTime":5,"id":6,"options":53,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":55,"createTime":5,"id":56,"options":57,"question":58,"source":31,"type":32},[],150092461,[37,40,38,39],"一般可逆电路中的βmin选 合理. A、30º-35º, B、10º-25º, C、0º-10º, D、0º",{"answer":60,"createTime":5,"id":61,"options":62,"question":65,"source":31,"type":32},[],150092462,[63,27,28,64],"交流侧可接电网","既可升压也可降压","下列关于无源逆变器的说法哪一个是正确的?( )",{"answer":67,"createTime":5,"id":68,"options":69,"question":70,"source":31,"type":32},[],150092463,[38,37,40,39],"串联谐振式逆变电路晶闸管的换流方式为( ). A.器件换流 B.电网换流 C.负载换流 D.脉冲换流",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":31,"type":32},[],150092464,[75,76,77,78],"三相桥式全控整流电路","含有续流二极管的单相半波整流电路","单相桥式半控整流电路","单相不控整流电路","下面电路可以工作在有源逆变状态的是( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":84,"source":31,"type":32},[],150092465,[39,40,38,37],"能够实现有源逆变的电路为( ). A、三相桥式全控整流电路, B、三相半控桥整流电路, C、单相全控桥接续流二极管电路, D、单相半控桥整流电路",{"answer":86,"createTime":5,"id":87,"options":88,"question":89,"source":31,"type":32},[],150092466,[38,39,37,40],"并联谐振型电流逆变电路的输出电压波形为( ). A 矩形波 B 三角波 C 正弦波 D 与负载性质有关"]