描述
中性点钳位的三电平电压型变频器。其整流电路常采用12脉冲或24脉冲二极管整流结构,逆变部分采用IGBT或IGCT,在逆变器部分采用钳位电路,解决了功率器件的串联的问题,并使相电压输出具有三个电平。该变频器的主回路结构环节少,与二电平结构相比,其逆变器件承受的电压降低,输出电压波形也有较大的改善。三电平电压型变频器效率较高,动态性能较好,过载能力较强。其不足是虽然通过网侧配置,可实现12或24脉冲整流,减少网侧谐波,但du/dt仍较大,电动机电流总谐波仍可达17%以上,所以一般需配特殊电机,若要使用普通电机,必须附加输出滤波器。另外,其现在最高输出电压只能做到4.16KV,采用这种变频器,必须采用变通的方法,改变电机的电压或在输出侧加升压变压器,这是制约其使用的最大问题。
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力士乐等各大品牌的DCS系统配件,机器人系统配件,大型伺服系统备件。
Force Computers SYS68K CPU-40B/4-01 VME MVME
Force SYS68K/CPU-6 880-12537-101.A?2 LAM 810-17034-300-1
FORCE COMPUTERS SYS68K/CPU-6A
Force SYS68K CPU-30Lite
FORCE COMPUTER VME SYS68K CPU-30ZBE PROCESSOR BOARD
FORCE SYS68K DRAM VME BOARD MVME MAINFRAME MOTOROLA
Force SYS68K CPU-33B/4 VME Board
Force SYS68K ISIO-1 Serial I/O Board
FORCE SYS68K SRAM-4A VME BOARD MVME MAINFRAME MOTOROLA
FORCE PROCESSOR BOARD Model SYS68K ASCU-2
FORCE SYS68K ISCSI-1 VME BOARD MVME MAINFRAME MOTOROLA
FORCE COMPUTERS SYS68K CPU-6A
FORCE CONTROL BOARD SYS68K ISI0-2/C2(P/N 220062)
FORCE SYS68K CPU-2VF VME SINGLE BOARD COMPUTER MOTOROLA
Force SYS68K/CPU-6A A7307 Rev D VME MVME Board
Force SYS68K/SASI-1 Lam research 810-017035-001 Rev.B
Force SYS68K/Eagle-01?C User’s Manual
Force SYS68K/SASI-1
FORCE SYS68K ISIO-2 MODULE ASSY
Force SYS68K CPU-40 B/16 VME Board
BUS TRONIC FORCE SYS68K MAINFRAME BOARDS NICE LOT
Force SYS68K/CPU-6A/C?3 810-017034-300 rev.A
Force SYS68K/CPU-30BE SYS68K/CPU-30BE?/16/C2 VME Module
Force SYS68K/CPU-33B/?4 VME Board CAT#:510098 PN:600-1
FORCE SYS68K/WFC-1 Floppy Controller VME Board 300001
Force SYS68K/ISIO-1FP I/O Controller Dual Board w Cable
Force SYS68K/CPU-33B/?4 VME Board CAT#:510098
FORCE SYS68K CPU BOARD 310004 WORKING
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
Force SYS68K/ISIO-2 I/O Controller Board PN:310031
FORCE COMPUTER CPU BOARD SYS68K CPU-1B NEW-NO BOX
FORCE COMPUTER VME BOARD MODEL SYS68K REV C
FORCE COMPUTERS SYS68K/CPU-6A USPP SYS68KCPU6A
FORCE COMPUTER MODEL SYS68K SASI-1441 LAM REV A
Force SYS68K CPU30ZBE CPU-30ZBE CPU Module VMEbus VME
FORCE COMPUTERS SYS68K/CPU-6VA USPP SYS68KCPU6VA
Force SYS68K/ISIO-2 I/O Controller Board PN:310031
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
FORCE COMPUTERS SYS68K/PWR-09A USPP SYS68KPWR09A
Force SYS68K/CPU-33B/?4 VME Board CAT#:510098
特价现货处理:
6GK1161-3AA00
6GK1161-3AA01
6ES7972-0AA01-0AA0
6ES7307-1EA00-0AA0
6ES7341-1AH01-0AE0
6ES7332-5HD01-0AB0
6ES7443-1EX11-0XE0
6ES7331-7PF10-0AB0
6ES7318-2AJ10-0AB0
6ES7321-1BL00-0AA0
6ES7322-1HH01-0AA0
6ES7972-0BA52-0XA0
6AV6545-0BA15-2AX0
6AV6545-0BC15-2AX0
6AV6545-0CC10-0AX0
SAFTRONICS EZ6-125
Starter EZ6-40
Saftronics AA1049