VISHAY铝电解电容在工业及新能源中的应用.pdf

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Aluminum Electrolytic Capacitors
赵晓磊
Peter Zhao
VISHAY 产品线市场工程师
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Aluminum Electrolytic Capacitors
for Motor Drives
Introduction to the application
Motor drives are used to control the
s speed of various motors in all kinds of
e systems, from the small pumps and
v
motors in household washing machines
r i and central heating and air-conditioning
D systems to the large motors found in
industrial machinery.
Selecting the best capacitor
for your motor drive
o t o r application
M
Aluminum capacitors are often used
as DC link capacitors in motor drives,
o r both in 1-phase and 3-phase designs.
f
The aluminum capacitor is used as an energy buffer to ensure stable operation of the switch mode inverter driving
s the motor. The aluminum capacitor also functions as a flter to prevent high-ponents from the switch
mode inverter from polluting the mains voltage.
The key selection criterion for the aluminum capacit