電力電子及驅(qū)動課程應(yīng)掌握詞匯

1、Introductionpower electronicselectric powerDC(Direct Current)AC(Alternating Current)magnitudefrequencyphaseconverter電力電子電力 直流電交流電幅值頻率相數(shù)、相位變流器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開關(guān)狀態(tài)通態(tài)斷態(tài)電力二極管陽極陰極參數(shù)正向平均電流正向電壓反向重復(fù)峰值電壓快恢復(fù)二極管肖特基二極管晶閘管Gate門極、柵極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)等效電路正反饋正向偏置反向偏置通態(tài)平均電流維持電流擎住電流門極可關(guān)斷晶閘管電力晶體管電力場效應(yīng)管絕緣柵極雙極性晶體管BaseEmitterCollectorDrainSource基極發(fā)射極集電極漏極源極AC to DC

4、 Converters(Rectifiers)rectifierresistive loaddelay angleinductive loadfreewheeling diodemaximum forward voltagemaximum reverse voltagecommutationRMS(effective value)整流器電阻負載延遲觸發(fā)角阻感負載續(xù)流二極管最大正向電壓最大反向電壓換流有效值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額定電壓額定電流反電動勢負載自然換向點有源逆變狀態(tài)晶閘管直流電動機系統(tǒng)四象限運行電動狀態(tài)再生發(fā)電制動狀態(tài)機械特性直流可逆電力拖動系統(tǒng)DC to DC converters(Chopper)ChopperBuck converterBoost converte

6、rcompositesmall ripple approximationinductor volt-second balancecapacitor charge balancecurrent reversible chopperbridge chopper斬波器降壓斬波器升壓斬波器復(fù)合小紋波分析電感伏秒平衡電容電荷平衡電流可逆斬波電路橋式可逆斬波電路AC to AC convertersAC voltage controllerCycloconverterphase voltageline to line voltage交流調(diào)壓電路周波變流器相電壓線電壓modilation調(diào)制DC to AC

7、 Converters(Inverters)InverterVSI(voltage source inverter)CSI(current source inverter)device commutationline commutationload commutationforced commutationleading laggingdead time(blanking time)逆變器電壓源型逆變器電流源型逆變器器件換流電網(wǎng)換流負載換流強迫換流超前滯后死區(qū)時間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脈寬調(diào)制面積等效原理正弦PWM波三角波采樣自然采樣規(guī)則采樣特定諧波消去法滯環(huán)控制同步調(diào)制異步調(diào)制單極性PMW雙極性PWMComposite convertersindirect AC to AC converter間接交流變流電路Indirect DC to DC convert