EFFECTS OF HARMONIC SOURCES ON CUSTOMER LOADS

This paper provides practical guidelines that would help power system engineers analyze certain harmonic related problems heuristically, The interaction between a given harmonic source and any other harmonic so urce(s) on line is studied. Two important factors pertaining to the in jected harmonic currents, harmonic order and phase, are considered in the evaluation of the effects of one harmonic load on another. A harmo nic load flow program based on the bus admittance matrix method was de veloped for purposes of this study. While this study suggests the use of a quantitative metric, the real power P, to correctly determine the effects of one customer on another, it is obvious that a study like t his has immediate applications which include the design of power facto r correction schemes, filter design and power system planning.