Novel Energy Saving Motor Drive with Minimum Harmonics for Refrigeration and Air-Conditioning Application

M.H. Jodeyri and S.B. Tennakoon (UK)


Power quality, air-conditioning, energy saving, induction motor, harmonics and PWM.


A new PWM AC chopper for application to refrigeration and air-conditioning is presented. The chopper achieves energy savings by voltage regulation and reduced input current harmonics compared with the conventional thyristor technology. An experimental chopper to supply a 1.1kw motor was built and the results are presented.

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