No abstract

Power Wheeling is cooperation of using power system network that owned by a party to transmit power from an entity to other entity. Power Wheeling scheme has been implemented in Indonesia since ministry regulation about it has been published. Implementation of Power Wheeling on a system will influence existing system condition. This paper aims to identify the effect of Power Wheeling implementation on a power system in Indonesia, that is Barito System. The result from load flow analysis shows that implementation of power wheeling affect significantly on each substation voltage. Short circuit current increases after Power Wheeling implementation but still within standard limitation. Stability analysis also shows that system is in normal condition. Intisari-Power Wheeling merupakan bentuk kerjasama pemakaian jaringan tenaga listrik milik suatu pihak untuk menyalurkan tenaga listrik dari suatu entitas ke entitas lain. Skema ini telah dapat diimplementasikan di Indonesia dengan diterbitkannya peraturan menteri terkait Power Wheeling. Penerapan Power Wheeling pada suatu sistem akan memengaruhi kondisi sistem yang sudah eksis. Makalah ini bertujuan untuk mengidentifikasi pengaruh implementasi Power Wheeling pada salah satu sistem kelistrikan di Indonesia, yaitu Sistem Barito. Hasil analisis load flow menunjukkan bahwa implementasi Power Wheeling mengakibatkan pengaruh yang cukup signifikan pada tegangan tiap GI. Adapun pengaruh pada kenaikan arus short circuit masih dalam batas standar. Hasil analisis stabilitas juga menunjukkan sistem masih dalam kondisi normal.

PT. PLN (Persero) has planned to develop a new renewable energy which has a minimum energy mix of 23% in 2025 and 31% in 2030. An intermittent renewable energy plant, which is uncontrollable and unpredictable, will begin to be massively used. Associated to the intermittent nature of the of intermittent renewable energy source (IRES), adequate system flexibility is necessary. This study determined the penetration level IRES generating unit using the systems load and existing generating unit ramping rate characteristic, IRES generating unit’s ramping rate and system’s technical minimum load (TML) on the Java Bali System based on the 2017 operation condition. The results showed that the TML value of the operating plant was 12164,69 MW. The ramping up and down capabilities of conventional power plants are 945.04 MW / 30 min and 4006.08 MW / 30 min where ± 5% of penetration of IRES was still applicable for the Java Bali System.