University of South Wales Master of Sciences Thesis
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- Điều hướng trang này:
- Figure 3-4
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Then, what is required here is, to determine the number of PV-panels forming PV-arrays and can be determined as: 3.7 With the simulations in this paper, the number of the PV-panels is determined using Eq- (3.7). It requires computational manipulations of series of loops and with N pv and E pv , and E load representing the number of PV-panels, the daily energy obtained from the PV-arrays and the daily energy demand of the loads respectively, the following schematic shows the PV-arrays sizing algorithm from the perspective of the energy demand and energy supply. Figure 3-4: The algorithm to determine the number of PV-panels with only PV-array source From the above algorithm block diagram, it can be observed the energies from the PV-panel(s) and the demand are compared. As far as the daily demand is larger than the PVarray supply, the number of PV-panels increases and the energy from the RESs is compared with the energy demand, and this repeats each and every loop until the condition There is also a general relationship between the average daily demand and the watts needed from PV- arrays can be given by the following preliminary solar PV-array capacity sizing formula [25]. 3.8 Where E ave_ daily _ demand is the average daily energy demand (refer to Appendix-A for values used), DSH is the daily sun hours (6-hrs/day considered here) and η dd is the DC/DC converter (regulator) efficiency (98%). Then, the maximum number of PV-panels forming a PV-array is: 3.9 Standalone hybrid generation system for the remote area of Thar, Pakistan 3.3.3. Sizing of the renewable energy sources in hybrid systems To size the energy sources used in the HPSs, the power generated from the PV-panel and wind turbine during each hour is first computed as: 3.10 Where, P res(t) is the equivalent power to the energy generated from the renewable sources at a tải về 6.62 Mb. Chia sẻ với bạn bè của bạn:
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