RANCANG BANGUN PEMBANGKIT LISTRIK TENAGA MIKROHIDRO DENGAN PEMANFAATAN ALIRAN ANAK SUNGAI MENGGUNAKAN CONTINUOSLY VARIABLE TRANSMISSION

Abstract

ndonesia has set ambitious targets to increase the share of renewable energy in its
energy mix, with Micro-Hydro Power Plants (PLTMH) being one of the renewable energy
solutions. This study focuses on developing a PLTMH utilizing the flow of the Tukad Sungi
tributary in Banjar Ganter, Desa Abian Tuwung, employing a Continuously Variable Transmission
(CVT) as the transmission mechanism between the turbine and generator. A water flow rate of
0.44 m³/s was capable of generating up to 8.580 kW, while a flow rate of 0.026 m³/s was used to
produce a hydraulic power of 484.12 watts and a generator output of 313.227 watts. Testing
revealed a decrease in turbine speed from 527.88 rpm to 315.8 rpm (40%), while the generator
speed increased from 315.8 rpm to 1509.8 rpm (378%). Although the CVT improved generator
speed, the system efficiency decreased due to the inability of the CVT to stabilize rotations and
the occurrence of v-belt slippage caused by water splashes. The reduction in turbine speed and
insufficient torque indicated that the CVT's performance was not significantly different from that
of conventional pulley systems.