Investigation of DC distribution network with renewables and DC load
The rise of digitalisation in recent years has demanded for significantly larger use of DC loads such as laptops, cell phones and data centres. There is also an expanding percentage of consumers who are turning to DC appliances and products such as solar panels and LEDs for improved home energy savi...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2023
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| Online Access: | https://hdl.handle.net/10356/166898 |
| _version_ | 1826111284114882560 |
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| author | Low, Dennis Bo Xiang |
| author2 | Wang Peng |
| author_facet | Wang Peng Low, Dennis Bo Xiang |
| author_sort | Low, Dennis Bo Xiang |
| collection | NTU |
| description | The rise of digitalisation in recent years has demanded for significantly larger use of DC loads such as laptops, cell phones and data centres. There is also an expanding percentage of consumers who are turning to DC appliances and products such as solar panels and LEDs for improved home energy savings. In addition, there is a growing trend for electric vehicles of which the local government is also installing increasingly more EV chargers in public spaces to encourage the use of EV in an effort to reduce carbon emissions. Along with the increase in DC loads in the current network, there is increasing power loss due to multiple conversion stages involved. Therefore, this surge in usage of renewables and DC loads and shift in consumer needs have called for engineers to relook into the current AC electricity network.
In this paper, a framework was formulated to analyse the efficiency impact of conventionally used low voltage levels of 400V in AC against 380V in DC, serving to small-scale residential complex with loads of voltage ratings 400Vac, 380Vdc, 48Vdc and 24Vdc loads, of which resulted in 8% higher efficiency in DC system. The degree of efficiency mainly draws on factors such as cable length, DC voltage levels and loads connected. Subsequently, the result of efficiency was evaluated against potential challenges such as DC protection systems and the associated costs of DC systems. The findings ultimately suggest the relatively low feasibility of transiting the current grid to DC distribution entirely, and propose for a hybrid AC/DC distribution system network. |
| first_indexed | 2024-10-01T02:48:10Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/166898 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:48:10Z |
| publishDate | 2023 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1668982023-07-07T18:08:28Z Investigation of DC distribution network with renewables and DC load Low, Dennis Bo Xiang Wang Peng School of Electrical and Electronic Engineering epwang@ntu.edu.sg Engineering::Electrical and electronic engineering The rise of digitalisation in recent years has demanded for significantly larger use of DC loads such as laptops, cell phones and data centres. There is also an expanding percentage of consumers who are turning to DC appliances and products such as solar panels and LEDs for improved home energy savings. In addition, there is a growing trend for electric vehicles of which the local government is also installing increasingly more EV chargers in public spaces to encourage the use of EV in an effort to reduce carbon emissions. Along with the increase in DC loads in the current network, there is increasing power loss due to multiple conversion stages involved. Therefore, this surge in usage of renewables and DC loads and shift in consumer needs have called for engineers to relook into the current AC electricity network. In this paper, a framework was formulated to analyse the efficiency impact of conventionally used low voltage levels of 400V in AC against 380V in DC, serving to small-scale residential complex with loads of voltage ratings 400Vac, 380Vdc, 48Vdc and 24Vdc loads, of which resulted in 8% higher efficiency in DC system. The degree of efficiency mainly draws on factors such as cable length, DC voltage levels and loads connected. Subsequently, the result of efficiency was evaluated against potential challenges such as DC protection systems and the associated costs of DC systems. The findings ultimately suggest the relatively low feasibility of transiting the current grid to DC distribution entirely, and propose for a hybrid AC/DC distribution system network. Bachelor of Engineering (Electrical and Electronic Engineering) 2023-05-15T07:49:56Z 2023-05-15T07:49:56Z 2023 Final Year Project (FYP) Low, D. B. X. (2023). Investigation of DC distribution network with renewables and DC load. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/166898 https://hdl.handle.net/10356/166898 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Electrical and electronic engineering Low, Dennis Bo Xiang Investigation of DC distribution network with renewables and DC load |
| title | Investigation of DC distribution network with renewables and DC load |
| title_full | Investigation of DC distribution network with renewables and DC load |
| title_fullStr | Investigation of DC distribution network with renewables and DC load |
| title_full_unstemmed | Investigation of DC distribution network with renewables and DC load |
| title_short | Investigation of DC distribution network with renewables and DC load |
| title_sort | investigation of dc distribution network with renewables and dc load |
| topic | Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/166898 |
| work_keys_str_mv | AT lowdennisboxiang investigationofdcdistributionnetworkwithrenewablesanddcload |