Dynamic modelling of an aggregated solar-PV system for power system transient stability studies.

Ghosh, A 2018, Dynamic modelling of an aggregated solar-PV system for power system transient stability studies., Masters by Research, Engineering, RMIT University.


Document type: Thesis
Collection: Theses

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Title Dynamic modelling of an aggregated solar-PV system for power system transient stability studies.
Author(s) Ghosh, A
Year 2018
Abstract With the increased penetration of renewable sources, such as solar and wind power generation, the power grid is going through rapid structural changes leading to instability issues. Hence, to assess the impact of solar PV generation on the transient stability of the overall system, a dynamic model should be developed. While developing the dynamic model, some of the key system components considered are maximum power point tracking (MPPT) algorithm and current control strategies. In this research Perturb and Observe (P&O) and Incremental Conductance (InCon) MPPT algorithms were investigated. For the current controller, two methods were investigated (i.e. synchronous frame Proportional Integral (PI) controller, stationary frame Proportional Reference (PR) controller). Then an aggregated solar-PV dynamic model was developed in DIgSILENT Power Factory with same architecture to represent the aggregated response of large-scale solar-PV generation. This aggregated model was used for transient stability analysis. It was found that integration of the solar-PV into the power system can benefit the transient stability of the overall system. As the solar-PV generation is spread across a large geographic area, the aggregated solar-PV model is not a realistic representation of a solar-PV generation. Therefore, a detailed distribution network model comprised of singlephase solar-PV systems is developed and subsequently, it is used to further validate and calibrate the aggregated solar-PV model. The calibrated aggregated model, could be used to represent the distributed solar-PV generation in transient stability studies and could prodice more accurate stability results for networks with high penetration of solar-PV generation.
Degree Masters by Research
Institution RMIT University
School, Department or Centre Engineering
Subjects Renewable Power and Energy Systems Engineering (excl. Solar Cells)
Power and Energy Systems Engineering (excl. Renewable Power)
Photodetectors, Optical Sensors and Solar Cells
Keyword(s) Dynamic Modeling
Solar PV systems
Renewable Energy
Transient Stability
Current Control Strategies
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Created: Thu, 12 Jul 2018, 14:25:48 EST by Adam Rivett
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