Abstract
Micro Hydro Power Plant (MHPP) is emerging as one of the most clean, renewable and reliable energy technology for harnessing power. In MHPP hydro governors are avoided, that results in turbine speed fluctuation. MHPP requires either speed or torque amplification of generator for constant power generation. To achieve this, planetary gear transmission system is explored for MHPP due to its higher efficiency and compact size. A conceptual planetary gearbox system is developed for MHPP to maintain constant generator speed. The conceptual gearbox is designed, modelled and analysed using ADAMS software. Simulation results are found to be in close agreement with analytical results. Hence, conceptual design of planetary gearbox can be used to govern constant generator speed. In this paper, a MHPP which generate constant power of 5 kW at constant generator speed of 1490 rpm is analysed and validated
Highlights
Electric energy is an essential requirement and its availability plays an important role in day to day life
Micro Hydro Power Plant (MHPP) is one of the emerging solutions for rural electrification, since it is built near valley, small rivers which are located far away from the national grid [1]
In MHPP, the powerhouse is directly placed on the runway stream with minimal arrangement for directing water towards powerhouse and hydro governor can be avoided
Summary
Electric energy is an essential requirement and its availability plays an important role in day to day life. A new design of transmission system is required to govern constant generator speed for variable input turbine speed [4]. In direct transmission turbine shaft is directly coupled to generator shaft, which yields in very high efficiency. Both turbine and generator needs to be designed as per the requirement which is uneconomic. When ring gear is fixed, input is given to turbine coupled to carrier and output is extracted from sun gear coupled to generator, planetary gear transmission acts as speed multiplier. If the input motion is given to sun gear and output is extracted from carrier, planetary gear transmission act as speed reducer. There is a need to develop a novel concept to maintain constant generator speed
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