定電圧高速運転時における三相かご形誘 導電動機のギャップ長に対する
Contents
1. 2 IM WE An XE Ft HH Table 2 Characteristics of rated load for IMs a Characteristics of driven at fs Exciting current A 3 48 4 33 4 58 5 29 5 80 6 35 Power ictor V us b Characteristics of driven at 20 Power ictor DI SS c Characteristics of driven at 3fs Power ictor DI Ir d Characteristics of driven at 3 5 5 Power feeri 80 Su ero a 708 eoo 5 amp 1 sss s26 507 Was 2 TINV Bk War 0 Weas Wear Was E Wes Wis Was t b TINV B2. XU Wa MM 4 IM 1 EE 2 8 IM QUSS du 1 P LAlger Induction Machines Gordon and Breach Science Pub Ee 0 2 WAL 58 1963 8 3
3. E Gei WE OU P t xq Jee RU Experimental Study for the Losses to Gap Length of a Three Phase Squirrel Cage Induction Motors at Constant Voltage High Speed Operation Satoshi GOTO Isao HIROTSUKA Masanori NAKAMURA Kazuo TSUBOI and Takayuki MIZUNO KKK Recently three phase squirrel cage induction motors IMs have been frequently used as variable speed motors driven by an inverter system However the losses generally increase and the efficiency decreases when an IM is operated over a wide speed range In this paper the losses for ten IMs which are driven by either a sinusoidal wave source or PWM inverter are measured by a method based on the dynamometer method defined by the Electrotechnical Committee JEC Standard of the Japanese This paper discusses the losses of test motors having different gap lengths from experimental results Keywords Dynamometer Gap length High speed constant voltage operation Induction motor 1 IM TIM sj
4. 967 2004 8 4 fr 8 IM RM 08 127 2008 11 5 For example S Goto I Hirotsuka M Nakamura K Tsuboi T Mizuno Experimental Study of Losses During High Speed Constant Voltage Operation of Three PhaseSquirrel Cage Induction Motor ICEMS2014 DS1H2 1 2014 10 60 HIOKI 3331 TAH 2003 12 7 JEC 2187 2000 PEIR 8 zb 81 878 p 1826 1961 11 HHH 00000 50 molr 43 O Secondary resistance loss Wo O Primary resistance loss Wa El Stray load loss We t4Mechanical loss Wm Iron loss W Inverter driving frequency fs D E oO Sinusoidal driving frequency s D 1 1 _ e e o O o eo 1C UD AA CN m pole 8 1nd3no D91Br 03 SSO 3uoo1oq 0 45 0 40 mm e 8 pole driving frequen
5. Electrical and Electronic Engineering Department of Electrical Engineering Meidensha Corporation 0000 HHHHH S50 RO TIM 2 d M INV IM 83 Table 1 Specifications of test motors Abbreviation Number of poles P Gap length g mm Rated output Rated frequency Rated voltage V Rated current A 5 4 IM Q 5350
6. 200V 1000min 4 fig IM 33 4Hz 668Hz 2 100 2Hz 3 13 KU 116 9Hz 3 5 9 8 IN 66 8Hz 138 6Hz 27 200 4Hz 3 233 8Hz 3 5 JEC 2137 1 uide citate EHAA 1 3 Si 2 8
7. 50 2014 ISSN 21877408 Experimental Study of the Losses to Gap Length of a Three Phase Squirrel age Induction Motors with Constant Voltage High Speed Operation Goto Satoshi ER Hirotsuka Isao KE THAT Nakamura Masanori BRZ Tsuboi Kazuo Mizuno Takayuki SUBJECT Dynamometer Gap length High speed constant voltage operation Induction motor H ABSTRACT Recently three phase squirrel cage induction motors IMs have been frequently used as variable speed motors driven by an inverter system However the losses generally increase and the efficiency decreases when an IM is operated over a wide speed range In this paper the losses for ten IMs which are driven by either a sinusoidal wave source or PWM inverter are measured by a method based on the dynamometer method defined by the Standard of the Japanese Electrotechnical Committee JEC This paper discusses the experimental results concerning the losses to test motors having different gap lengths from experimental results y
8. PWM IS INV CE 0000 HHHHH S50 RO 0 33 kW 100 2 Hz 3 3 0 29 kW 116 9 Hz 3 5f5 Based speed min 920 at fs 41 5 1 00 kW 33 4 Hz f 0 50 kW 66 8 Hz 2 0 45 0 80 kW 66 8 Hz fs 0 40 kW 133 6 Hz 2f5 0 27 kW 200 4 Hz 3 3 0 23 kW 233 8 Hz 3 5 s 200 5 9 at fs 945 at fs 3331 2 LT X A D R INV
9. 0 25 de CHE S D m E QD II a NCC NCC NN 9 EE T T3 3 T o QD MES gt E E EE E SEKR e z d ee CH SE Eu jah Q ci 5 m E Q gt QD e PES amp e uS op c o E e m e 5 iQ 2 o N Kan 10 x f 3 sv E S S a 8 3 SS Lei e ERE gt c0 5 5 e H 5 o op O E 2 o E e co E op d We S E ER gt E a O SS 177 S n xD 3 J gt o 1C UD CO CN m mdmo Dag 03 sso U99 9J 60 AH frequency 3 5fs Inverter bp p RE DO KKH LI WEE TT SE e o e o o o 1C UP CO CN m mdmo DBr 0 sso 1U99 9J m e Wei m O 5 a m Le E e 2 QO d QD 5 o QD m o0 c m b eri Sa Eil QD m O SI sch c e 0O a mM A e 1nd3no D91Br 0 sso 3uo24doq 0 40 0 45 mm 0 35 Gap length h 4 pole driving frequency 3 5fs Inverter 0 30 0 25 0 35 0 40 0 45 Gap length mm d 4 pole driving frequency 3 5 s Sinusoidal 0 30 0 25 Fig 3 Percent loss to rated output for 4 pole IM at rated load 45 OO HHHHH s molar
10. 815 IM INV JH 2 1 4 8 0 80mm 0 05 0 15mm 0 05mm 5 10 IM 4 IM 0 25mm IMs 8 IM 0 25mm IMs Tripole joint Volt slid Digital power meter Power amplifier or inverter PC Fig 1 Arrangement of experimental apparatus 1 INV 5 5kVA
11. R Wen Wa Wis b Wes Was Was Walk W 9 8 IM INV 2 e 2 f 2 g 2 h We 8 IM 2 OO HHHHH S50 mola 42 b 4 IM Wa2vke ol 4 IM DHA 3 XU 3 fs 3 5 X Wg Wa DH 3fs43k0 8 5 fs E Wa Wa
12. cy fs Inverter 0 35 Gap length 0 30 0 45 40 0 0 35 Gap length mm a 8 pole driving frequency fs Sinusoidal 30 0 25 FI D gt EA D gt S EDO driving frequency 2 5 o O o o e T UP CO CN m m e Wei m O 5 a rm Le Er 2 d QD 5 ey QD a op rm b Sa QD m O Gm o0 O e O o co 1C CN m mdmo Dag 03 SSO U99 9J 0 35 0 40 0 45 Gap length 0 30 0 25 0 30 0 35 0 40 0 45 0 25 f 8 pole driving frequency 2 s Inverter mm Gap length mm b 8 pole driving frequency 2 5 Sinusoidal 4 eea anan ESSA 1nd3no Dag 03 sso 3uo21oq qo El LI Ur GE ee m UI O O o O e o co 1C UP en CN m e Wei m O 5 mL LU Le e 2 Q c QD 5 o jab m op c El b eri Sa jab m O Gm 0 1nd3no Dag 03 sso JU9949d 0 35 0 40 0 45 Gap length 0 30 0 25 0 40 0 45 0 35 Gap length c 8 pole driving frequency 3fs Sinusoidal 0 30 0 25 g 8 pole driving frequency 3fs Inverter mm mm puso M a A I OP S M x OO NN co 1C ch CO CN A SC E 0 8 pole driving frequency 3 5fs Inverter becht c eo 1 ch CO IN m e We m O 5 dq m go Le S CO 2 QO d QD 5 o m o0 C El b eri Sa jab m O Gm ee 1nd3no
13. pIEI 0 SSO JUI dq 0 40 0 45 0 35 Gap lengthImm h 8 pole driving frequency 3 5fs Inverter 0 30 0 25 0 45 40 0 95 0 Gap length mm d 8 pole driving frequency 3 5 s Sinusoidal 30 0 25 0 Fig 2 Percent loss to rated output for 8 pole IM at rated load OO HHHHH S50 MRO Stray load loss Wg Mechanical loss H Iron loss W D Secondary resistance loss Wis O Primary resistance loss Wa RE 4 pole driving frequency fs Inverter 60 50 40 30 20 1 e TC eri rj ge lt gt e 3 c D dm op a DS gt DS EQ OI mi e ch c Ne 1 KR CO CN m 95 13nd3no Dag 03 sso 1U99 9J 0 40 0 45 0 35 Gap lengthlmm e 4 pole driving frequency fs Inverter 0 30 0 25 0 45 40 0 0 35 Gap length mm a 4 pole driving frequency fs Sinusoidal 30 0 25 0 c eo c eo m e Wei m O 5 C m LU Le er 2 QO d QD 5 ees QD m o0 m b eri Sa jab m O Gm sch EST 4 pole driving frequency 2fs Inverter la NP bp CN TA EZAT io a o ANA ei 95 1nd3no D91Br 03 sso 1U99 9J 0 45 0 40 mm 0 35 Gap length f 4 pole driving frequency 2fs Inverter 0 30 0 25 0 45 0 35 0 40 Gap length mm b 4 pole driving frequency 2 s Sinusoidal 0 30
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