电力电子及驱动课程应掌握词汇

1、Introductionpower electronicselectric powerDC(Direct Current)AC(Alternating Current)magnitudefrequencyphaseconverter电力电子电力 直流电交流电幅值频率相数、相位变流器Power Electronic Devicesuncontrolled devicehalf-controlled devicefull-controlled deviceswitching stateon-state(conducting)off-state(blocking)Power DiodeAnodeCa

2、thodespecificationaverage rectified forward currentforward voltagepeak repetitive reverse voltagefast recovery diodeSchottky diodeThyristor不可控器件半控型器件全控型器件开关状态通态断态电力二极管阳极阴极参数正向平均电流正向电压反向重复峰值电压快恢复二极管肖特基二极管晶闸管Gate门极、栅极equivalent circuitpositive feedbackforward biasedreversed biasedaverage on-state curr

3、entholding currentlatching currentGTO(gate trun-off thyristor)GTR(giant transistor)Power MOSFET(Power metal-oxide-semiconductor field effect transistor)IGBT(insulated-gate bipolar transistor)等效电路正反馈正向偏置反向偏置通态平均电流维持电流擎住电流门极可关断晶闸管电力晶体管电力场效应管绝缘栅极双极性晶体管BaseEmitterCollectorDrainSource基极发射极集电极漏极源极AC to DC

4、 Converters(Rectifiers)rectifierresistive loaddelay angleinductive loadfreewheeling diodemaximum forward voltagemaximum reverse voltagecommutationRMS(effective value)整流器电阻负载延迟触发角阻感负载续流二极管最大正向电压最大反向电压换流有效值rating voltagerating currentEMF(electro-motive-force) loadnatural commutation pointinverter mode

5、 operationThyristor-DC motor systemfour quadrant operationmotoringbraking(regenerating)speed-torque characteristic(mechanic characteristic)reversible DC motor drive system额定电压额定电流反电动势负载自然换向点有源逆变状态晶闸管直流电动机系统四象限运行电动状态再生发电制动状态机械特性直流可逆电力拖动系统DC to DC converters(Chopper)ChopperBuck converterBoost converte

6、rcompositesmall ripple approximationinductor volt-second balancecapacitor charge balancecurrent reversible chopperbridge chopper斩波器降压斩波器升压斩波器复合小纹波分析电感伏秒平衡电容电荷平衡电流可逆斩波电路桥式可逆斩波电路AC to AC convertersAC voltage controllerCycloconverterphase voltageline to line voltage交流调压电路周波变流器相电压线电压modilation调制DC to AC

7、 Converters(Inverters)InverterVSI(voltage source inverter)CSI(current source inverter)device commutationline commutationload commutationforced commutationleading laggingdead time(blanking time)逆变器电压源型逆变器电流源型逆变器器件换流电网换流负载换流强迫换流超前滞后死区时间PWM TechniquesPWM(Pulse Width Modulation)the equal-area theoremsin

8、usoidal PWM(SPWM)triangular wave samplingnatural samplinguniform samplingselective harmonics eliminationhysterics controlsynchronous modulationasynchronous modulationuni-polar PWMbi-polar PWM脉宽调制面积等效原理正弦PWM波三角波采样自然采样规则采样特定谐波消去法滞环控制同步调制异步调制单极性PMW双极性PWMComposite convertersindirect AC to AC converter间接交流变流电路Indirect DC to DC convert