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"Penelitian ini dilakukan untuk mengetahui kerugian minimum akibat emisi harmonisa dalam suatu populasi konsumen industri, kualitas tenaga listrik yang buruk akan menimbulkan biaya, harmonisa pada instalasi penyediaan dan pemanfaatan tenaga listrik menimbulkan kerugian berupa penurunan kapasitas pada trafo tenaga dan pada kabel, sehingga kedua pihak akanberusaha mengurangi dampak kerugian tersebut dengan tambahan biaya investasi berupa penambahan kapasitas trafo dan kabel serta pemasangan filter, dengan menghitung biaya yang ditimbulkan di sisi penyediaan dan di sisi pemanfaatan maka total kerugian dikedua pihak akan minimum pada suatu nilai total harmonics distortion (distorsi harmonisa total) tertentu.

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This research was conducted to detemine the minimum losses due to emission of harmonics in an industrial consumer population, poor quality of electrical power would cost, harmonics in the installation of electricity reduced capacity of the power transformer and the cables, so that both parties will try reduce un the impact of these losses with the additional investment cost of adding capacity transformers cables and the installation of filters, by calculating the costs incurred on the supply side and on the utilization side, the total cost in both parties will be minimum at a particular value of total harmonics distortion."

"The dual-inverter fed open-end winding configuration can be categorized as a new breed of multi-level converters. The structure is simple and offers a lot of advantages. However, the development of suitable PWM schemes is more complicated, due to the availability of a large number of switching states and existence of the multiple two-dimensional planes. An overview of attempts to develop suitable modulation techniques for the dual-inverter fed five-phase machine drives recognizes that progress has been made over the past few years. This paper presents a performance comparison of three PWM schemes of the dual-inverter fed five-phase, open-end winding motor drives. The quality of the phase output voltages are compared and the adequate analyses are provided. The simulation results show that the Carrier Based Phase Disposition (PD) PWM scheme enables generation of the most excellent output voltage among the three PWM schemes. The Total Harmonics Distortion (THD) of the output voltages generated by the carrier based PWM scheme reduces by 65% and 15% on average compared to the THD of the output voltages produced by the URS PWM scheme and the decomposition PWM scheme respectively."