ҵ˾ͨרҵ
ͨŵԴ
1ж
1) ͬͺŵزʹÿߵѹʹõĿ
2) ϵԴϵͳƽھ״̬ڸʱڸ״̬
3) ϵԴϵͳʱӦģȹҽڽϣԱ֤ƽ,ߵϵͳϡ̣
4) ķŵԽ󣬷ŵʱԽ̣ʵʷųԽСŵԽСŵʱԽʵʷųԽ󣨼ŵԽ̣ 
5) ִͨŻϵͳıءӦɢӣнӵء
̣
6) һ˵ĸƵصԴϵͳָнģ顢ֱģ顢ƵģͼģɵֱԴϵͳ
̣
7) ƵģУ˲ǽڽģ֮˲ װãΨһƽеĸƵŴģ顣
8) ڷʽǦʹڼˮصά˿ά
9) һǦأڲͬŵ·ŵ磬в̣ͬ
10) ¶ȶԵصӰܴһĻ¶ȷΧʹ¶ȵ߶ӣ¶ȵĽͶС̣
11) Ǧǵشٵı־صĶָڻȫӦųĵ

2ѡ
1 Ҫ:( A )
A⽻ѹ/	     Bṩ
Cṩźŵ        DΪƵԪṩźţӴ
2 صԴбû·ĸ·ȷģ A 
    
            A                          B
       
C D

3 ¶ȲܵϵԴϵͳϵͳѹᣨ C 
   A¶ȵ߶ߣͶͣ趨¶Ȳϵв
   B¶ȵ߶ͣͶߣ趨¶Ȳϵв
   Cһ¶ȷΧڣ¶ȵ߶ͣͶߣ趨¶Ȳϵв
   Dһ¶ȷΧڣ¶ȵ߶ߣͶͣ趨¶Ȳϵв
4 ڰװϵԴϵͳĽʱرҪעⱣ֤·ߵĿɿӺߵĿɿýӵأκʱߣ A вôӿء
   Aɶ·ɸ               Bɶ·ɸ
   Cɶ·ɸ                   Dɶ·ɸ
5 ͨϵԴϵͳ߱ǿķ粿õOBOʾڣڲûе壬ɫʱʾ C ʱʾϡ
   Aɫ        Bɫ          Cɫ        Dɫ
6 ʹõ( A )Ǳ֤Ĺؼ¶ȹߣеĻѧӦӾ磬ڳصļѹƵʧˮٶȣӶŵԼŵֹѹ֮ĹϵҲǷǳеġ
   A.¶ȡŵȣ              B. ŵ
   C.ĺã              D. ά
7 ͨŻĽӵطʽͨϽӵطʽغͣ  D һӵ塣
   A        B         C ׵      D 
8 UPS豸Ӧѭ˳У A 
   AɴС    BС     C豸   D˳Ҫ
9 ƵģѹΪ380VʱΧ  ( B )
A320420 V      B323418 V   
 C318418 V       D 325420 V    
11 ʿ˵ǿصԴ࣬һֿǿصԴõ( C )
AMOSFETʳЧӦ   BIGBTԵդ˫ 
 CGTRբ            DBJT˫;     
12 ǦڷŵУϵĻʶϵתΪ( B )
AǦ   BǦ  C   DǦ     
13 ԵضȷǣA
A25滷10Сʱʵŵ˵ѹܵ
B25滷3Сʱʵŵ˵ѹܵ 
C25滷1Сʱʵŵ˵ѹܵ
DڻȫӦųĵ
14 ͨҵ׼涨ʽǦڻ¶Ϊٵʹá( A )
A-15+45   B-5+45   C5+30   D5+25     

3
1 ڿصԴϵͳУĳ·õĲĹΪ75mv/500Añô˷˵ѹΪ5mv·صǶ
C=500*5/75=33.3A
2 ϵԴϵͳ200AHأ豸30MҪѹ0.5v,ѡ¡سϵ0.15㣻Rͭ絼=57S, R絼=34S
µĵΪ200*0.15=30A
ֱ¼㹫ʽS=IL/RU=30*30/(57*0.5)=31.57mm2
ѡ35ƽ׵ͭо¡
3 ĳͨվһ48/50صԴһף3ģ飬400Ah飬ص
Լ40A, ǷҪݣдɡ
Ic+IfܣN-1Im0.9
   N(Ic+If)/ (Im0.9)+1=(40+80)/45+1=3.7
   N=4
 һģ顣
4 ϵͳ๩磬9̨DZY-48/40ϵͳ轻빦ʣ

1㵥̨ĽʣP156.440/0.9.2500VA
2ÿ㵥빦ʣPz=P13250037500VA)
3ϵͳ轻ܹʣP=Pz322500VA
5 ĳͨվҪһվõԴվڵüõ£ͨ豸ĸص20AΪ400AH2顣0.12CCΪضǣ1õΪ30AĵԴģ飬ӦҪ2N+1ǣҪģ飿
Ϊ0.12C0.12800=96A20AصԴ96A+20A=116A
1116/30=3.87,ȡҪ430Aģ
2ΪӿɿԣԴģ鰴N+1ǣվԴҪ530Aģ顣
6 ֪һΪ500AhķʽǦ飬50Aŵʵ飬ŵʱΪ9.5Сʱ1صĲCt2ŵʵл¶Ϊ20棬׼¶ȵʵCe
𣺣1Ct=509.5=47.5(Ah)
     2Ce=475/[1+0.006(20-25)]=475/0.97=489.7(Ah)

4
1 ͨѶԴϵͳУصԪܹʱԴϵͳֻһֱڸ״̬ܶؽо
 ׵ΣԴϵͳȡ״ʩڻⲿڴװнϵͳĵһףһΪѡ䣩ϵͳĽԴװнϵͳĵڶסҪղѹװģڲ
 ڽزԴϵͳǰӦȰϵͳѹصѹͬŲ˿ص¡
 صԴƵԽߣ俪عܵľԽ󣬿صԴԽС
 һ400AHĵأڵĳֵһΪ40AתֵһΪ4A
6 ʽǦصľѹΧһΪ2.302.35V,һȡ2.35V,һϵͳľѹΪ56.4VעеĵزҪ䣬ɰѾѹΪͬһֵ
 ָشλðʱʾ
 ģййʵıֵΪЧʡ
 ͨŵԴϵͳУֱϵͳҪɲ֡еʱйƽ˲ãе쳣ʱص𵽱á
̫ܵǰ̫ͨЧӦתɵܵĹ⡪ת
֮󣬵һʹûûʹõأʹǰȲ硣
1 صļĸʴʹ¶ȡѹȶӰصʹ

5
1 ִͨϵԴϵͳһ岿ɣ 
ɽ絥Ԫֱ絥Ԫģ顢صԪ岿ɡ
2 гõԴӢдĺ壺PWMAPFCZVZCSAC/DCDC/DC
PWMƣ
APFCԴУ
ZVZCSѹأ
AC/DC/ֱ任
DC/DCֱ/ֱ任
3 Դϵͳµʵֹ̼䱣ܡ
𣺶µʵֹ̣еͣظع磬صûõһµѹֵʱصԪźţֱ·жһµһ鸺أصѹûõĶµѹʱصԪٴηźţһ·ֱ·ж϶µһ鸺ء
µıܣ1ӳҪصĹʱ䣻2زŶ𻵡
 ˨δšʲôΣ
ɢӴ󣬳ŵмʱ·ȡ𣬷¹ʡһڰװͶ˺ճάжҪرע⡣
5 üԭ
𣺱׵ѹ·ڣΣ豸ľԵӦ뱻豸ڱ豸ĵԴࡣ·ϳΣ豸ԵĹѹʱĻ𻨼϶ͱɸΪ裬ʹѹԵطŵ磬Ӷ豸ľԵ
6 ܷʽǦͨΪʹãѹѡԵصӰ죿ӰΣ
𣺸ѹѡԵصкܴӰ죬Ӧݸ˵Ĺ涨ȷѡ񸡳ѹѹ󣬻ʹع䣬ʧˮӴذդĸʴߣͣʹ̣ѹͣʹǷ䣬ڲλɵ̡ͣ
 øƵ任СѹΪǸƵĺļƵ任Сѹԭ
 Ƶ50HzƵתֱȻùת·ٽֱתΪƵڽѹõıѹ书һʱƵѹоɷȣ߱ѹĹƵʣȻо棬ӶС˱ѹ
 ѹԭʱƣTRCԭ˵ʱƵĺʲô巽ʽļ֣
 νʱԭͨı俪ؽͨʱ͹ڵıѹ巽ʽУȵƷʽƵʵƷʽϵƷʽ
 ʽǦʧˮҪԭʲô
ٻϵЧʵͣӵؿˮդʴˮԷŵʧˮȫʧЧƵ
 򵥵̫ͨܵصԴϵͳĹɼֵã
 򵥵̫ͨܵصԴϵͳһ̫ܵط󡢴װáװɣĻеѹ任װá̫ܵطȡܲйתװһΪ飬ܣװüν̫̫ܿܶĳͨ豸ķŵ磻ѹ任װֻͬʱͬѹͨ豸ʱá
 11 ҳ  11 ҳ

