A vacuum cleaner is an appliance that uses an air pump to create a
partial vacuum to suck up dust and dirt from floors, and other surfaces. The
dirt is collected by a dust-bag for future disposal. Hubert Cecil Booth
invented the motorized vacuum cleaner in 1901. Since then, their use has
proliferated and vacuum cleaners are now very commonly used in homes on a
regular basis to maintain a healthy living environment. Manufacturers of vacuum
cleaners include Eureca, Hoover, Bissell, and Dyson. In the past, universal
motors were mostly used for vacuum cleaners due to high operating speed with
low cost. However, these motors use a mechanical brush which wears out at high
speeds limiting the performance.
Modern vacuum cleaners with higher output power (suction) are
designed using switched reluctance motors. The power circuits used for
operation of the switched reluctance motor in vacuum cleaners. These circuits
utilize IGBTs to overcome the difficult start-up problem for switched
reluctance motors and for maintaining a high operating speed. The author’s
state: “Its lifetime is extended 4 times than that of conventional motor and
its suction power is increased 20% at the same volume of conventional universal
motor”.
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