Remigius, Tandioga and Musrady, Mulyadi and Azwar, A and Widya, Wirawati
(2021)
*Optimasi Operasi Unit-Unit Pembangkit Pada PLTU Barru.*
Sinergi, 19 (1).
pp. 62-79.
ISSN 1693-1548

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## Abstract

The problem that is often faced by a power generating unit, especially thermal generators, is the high

operating costs. In relation to operating costs, in this study, the calculation of operation optimization of thermal

power plants aims to determine the optimal operating model, compare operating costs with various methods, and

determine the lowest basic tariff cost for each generating unit. In this study, the method used for the optimal

calculation of operating costs is the Lagrange multiplier method and dynamic programming. The main criteria

that must be met is to know the input-output characteristics of the generating units. From the results of

optimization calculations, it is known that the Lagrange multiplier method is more optimal than using the

dynamic programming method even though the calculation results are almost the same. In general, the

calculation results are more optimal than the real conditions of the PLTU Barru. Especially in May 2016, the

optimal calculation results throughout the day (for 24 hours) with an average total power of 71.58 MW (71.58%)

namely on the 7th, 20th, 21st, 26th, 27th, 28th, 29th, 30, and 31. The real condition of the PLTU Barru is more

optimal than the calculation results with an average total power of 50.36 MW (50.36%) which is on the 4th at

17:00 – 24:00, the 5th at 01:00 – 16:00, the 6th at 01:00 – 17:00, the 8th at 17:00 – 24:00, the 10th at 01:00 –

08:00, the 11th at 01:00 – 12:00, date 18 hours 01:00 – 12:00, the 19th 01:00 – 02:00, the 22nd at 06:00, and the

25th at 21:00 – 22:00, and outside of that time the calculation results show the optimal value.

Item Type: | Article |
---|---|

Subjects: | T Technology > TJ Mechanical engineering and machinery |

Divisions: | Jurusan Teknik Mesin > D4 Teknologi Rekayasa Energi Terbarukan |

Depositing User: | Unnamed user with username 197202012001121002 |

Date Deposited: | 14 May 2023 13:45 |

Last Modified: | 14 May 2023 13:45 |

URI: | http://repository.poliupg.ac.id/id/eprint/1885 |