Technical cost of PV-STATCOM applications

Lourenço, Luís F. Normandia; Salles, Mauricio Barbosa de Camargo; Monaro, Renato M.; Quéval, Loïc

doi:10.1109/icrera.2017.8191118

Cited by 7 publications

(2 citation statements)

References 19 publications

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“…Therefore, alternative models were investigated [36,[41][42][43][44][45]. The evaluation of these losses was carried out using the look-up table approach proposed by [45] with the same approximation as [28][29][30]: the junction temperature was assumed constant at 125 • C, so that only manufacturer data are considered instead of experimental data. The look-up table approach consists of comparing the switch currents' values pre and post the switching transitory.…”

Section: Pv System Lossesmentioning

confidence: 99%

“…According to [30], the technical costs of operating a PV farm as a STATCOM during daytime "are associated with the electric power that must be bought from the grid to supply the difference between the system losses with and without reactive power support". Therefore, for a given irradiance, by subtracting the PV system losses without reactive power support P total (Q = 0) from the losses with reactive power support P total (Q = 0), one can derive the technical costs:…”

Section: Technical Costsmentioning

confidence: 99%

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Evaluation of the Reactive Power Support Capability and Associated Technical Costs of Photovoltaic Farms’ Operation

et al. 2018

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Abstract:The share of photovoltaic (PV) farms is increasing in the energy mix as power systems move away from conventional carbon-emitting sources. PV farms are equipped with an expensive power converter, which is, most of the time, used well bellow its rated capacity. This has led to proposals to use it to provide reactive power support to the grid. In this framework, this work presents a step-by-step methodology to obtain the reactive power support capability map and the associated technical costs of single-and two-stage PV farms during daytime operation. Results show that the use of two-stage PV farms can expand the reactive power support capability for low irradiance values in comparison to single-stage ones. Besides, despite losses being higher for two-stage PV farms, the technical cost in providing reactive power support is similar for both systems. Based on the obtained maps, it is demonstrated how the profits of a PV farm can be evaluated for the current ancillary services policy in Brazil. The proposed method is of interest to PV farm owners and grid operators to estimate the cost of providing reactive power support and to evaluate the economic feasibility in offering this ancillary service.

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