Power consumption pattern modeling for effective distribution network planning
The demand for electricity is increasing due to population growth. The power consumption pattern become critical issues to be investigated so that the network can be planned, designed and operated efficiently to meet the increasing yearly demand. In this study, multistage cluster sampling is used...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2009
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/13682/1/Chai%20Choung%20Jung%20ft.pdf |
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| Summary: | The demand for electricity is increasing due to population growth. The power
consumption pattern become critical issues to be investigated so that the network can be planned,
designed and operated efficiently to meet the increasing yearly demand.
In this study, multistage cluster sampling is used to calculate the sample size. Power
consumption data for every 15 minutes time interval was recorded by using EDMI Mk.6 Genius
polyphase electronic (E3) meter. Once power consumption data is collected, power consumption
pattern, load factor, diversity factor, after diversity maximum demand, distribution transfonner
size and l1kV cable size can be detennined. Analysis on temperature sensitivity related to the
demand and method to improve overall load factor will be carried out.
The result shows that power consumption pattern is influenced by consumer behaviour,
time and weather. For the consumer behaviour factor, differences in numbers, sizes and types of
electrical appliance will greatly influence the demand and maximum demand of the power
consumption pattern. For time factor, demand for domestic 'consumer is high during nighttime as
compared to daytime. Weather is also a factor which can affect the demand. In this study,
analysis on temperature sensitivity related to the demand shows that when the temperature
increases, the demand will also increase. The result shows that commercial unit floor has the highest value of after diversity
maximum demand followed by detached house, semi-detached house, terrace house and
residential unit floor. Based on the value of after diversity maximum demand and the unit of
different types of consumers needed, more accurate total electrical load, distribution transformer
size and 11 kV cable size can be determined.
The power consumption pattern model had been created by using graphical user interface.
By entering the unit of different types of consumers needed, this model is able to determine
accurately total electrical load, distribution transformer size and the 11 kV cable size needed. |
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