DESIGN AND ANALYSIS OF OFF-GRID PV SYSTEM WITH HYBRID ENERGY STORAGE SYSTEM
The world is facing the problem of climate change caused by global warming. The construction of power plants that is not followed by the selection of low-carbon fuel types and the use of efficient and environmentally friendly technology will have an impact and exacerbate the problem of global war...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/62349 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The world is facing the problem of climate change caused by global warming. The
construction of power plants that is not followed by the selection of low-carbon fuel types
and the use of efficient and environmentally friendly technology will have an impact and
exacerbate the problem of global warming. One of the environmentally friendly electricity
generators is photovoltaic. However, photovoltaic system is intermittent so that if it is
operated outside the utility grid, energy storage devices are needed. The most widely used
energy storage device is the battery. A relatively inexpensive battery is a lead-acid
battery, but its life cycle is relatively short. In addition, there are long-lived energy
storage devices such as supercapacitors, but supercapacitors have low energy storage
capacities.
To reduce the impact of fluctuating photovoltaic power generation and take advantage of
battery and supercapacitor, this study designs an off-grid PV system with a hybrid energy
storage system in remote areas in Indonesia, which are batteries and supercapacitors. To
see the performance of the system, modelling is carried out on MATLAB and Simulink.
Afterwards, predictions of battery life time using the rain flow counting algorithm and
levelized cost of energy (LCOE) calculations are also carried. The results showed that
the addition of supercapacitor in energy storage system could stabilize the voltage and
current in the battery and extend battery life time. In addition, the LCOE of system with
supercapacitor is lower than in systems without supercapacitors. |
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