AbstrakPada pembangkit listrik, besarnya energi yang diperlukan untuk auxiliary load sendiri berkisar antara 1-10% dari produksi energi yang dihasilkan. Jenis beban pada jaringan auxiliary load di pembangkit listrik kebanyakan adalah berupa motor listrik, seperti: pompa uap pengendali turbin, dan pompa sirkulasi air. Ada kecendrungan faktor daya rendah pada busbar beban di jaringan auxiliary load ( < 0,85), diakibatkan banyak nya konsumsi daya reaktif sehingga mengakibatkan tingginya rugi-rugi daya pada saluran. Pada penelitian ini, dibahas mengenai optimisasi penempatan kapasitor bank untuk mereduksi faktor daya menggunakan FPA. Metode optimasi ini terinspirasi dari proses penyerbukan bunga oleh serangga yang ada di alam semesta. Metode ini akan membangkitakan sekawanan serangga yang tiap-tiap individunya membawa nilai konfigurasi kapasitor yang berbeda satu sama lain. Nilai-nilai inilah yang nantinya akan diselesaikan oleh algoritma metode ini untuk mendapatkan nilai yang paling optimal. Hasil penelitian membuktikan bahwa dengan menempatkan 53 kapasitor dengan total rating 1060 kVAR pada bus 24 , 26, 28, 30, 34, 36, 38, 40, 42, 44, 50, 52, 54, 56, 60, 62, dan 66 mampu menurunkan rugi daya aktif sebesar 22,6 kW dan rugi daya reaktif menurun sebesar 28,1 kVAR sehingga didapatkan penghematan sebesar $12.952,1681dalam kurun waktu 5 tahun. AbstractAt power plants, the amount of energy required for the auxiliary load itself ranges from 1-10% of the energy produced. The type of load on auxiliary load network in most power plants is in the form of electric motors, such as turbine steam pumps, and water circulation pumps. There is a low power factor trend in the load busbar in the auxiliary load network (<0.85), due to the large amount of reactive power consumption resulting in high loss of power in the channel. In this research, we discussed the optimization of bank capacitor placement to reduce power factor using FPA. This optimization method is inspired by the pollination process of flowers by insects in the universe. This method will spawn a flock of insects that each individually carry different capacitor configuration values to each other. These values will be solved by the algorithm of this method to get the most optimal value. The results show that by placing 53 capacitors with a total rating of 1060 kVAR on buses 24, 26, 28, 30, 34, 36, 38, 40, 42, 44, 50, 52, 54, 56, 60, 62, and 66 are able reducing active power losses by 22.6 kW and reactive power loss decreased by 28.1 kVAR to obtain savings of $ 12,952,1681 within 5 years.
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