Effects of harmonics on electric energy metering
YAN Wei-jia,JIANG Ping,LI Feng(Dept.of Electrical Engineering,Southeast Univ.,Nanjing 210096,China)
Since the harmonic pollution of the grids is becoming more and more serious due to the increase of the non-linear loads in power systems,the effect of harmonics on electric energy metering has obtained high attention among people.The influence of harmonic sources on electric energy metering is analyzed theoretically,and it is concluded that the customers who send out harmonics have their metered electric energy reduced,while the customers who are non-harmonic sources have their metered electric energy increased since they absorb harmonics.The conclusion is verified by simulation.
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