Abstract
In recent years, a significant number of large-scale solar photovoltaic (PV) plants have been put into operation or been under planning around the world. The model accuracy of solar PV plant is the key factor to investigate the mutual influences between solar PV plants and a power grid. However, this problem has not been well solved, especially in how to apply the real measurements to validate the models of the solar PV plants. Taking fast-responding generator method as an example, this paper presents a model validation methodology for solar PV plant via the hybrid data dynamic simulation. First, the implementation scheme of hybrid data dynamic simulation suitable for DIgSILENT PowerFactory software is proposed, and then an analysis model of solar PV plant integration based on IEEE 9 system is established. At last, model validation of solar PV plant is achieved by employing hybrid data dynamic simulation. The results illustrate the effectiveness of the proposed method in solar PV plant model validation.
Highlights
IntroductionWith the rapid increase of solar photovoltaic (PV) power integration, its impact on the power grid has received extensive concern and excited wide research interests [1]
With the rapid increase of solar photovoltaic (PV) power integration, its impact on the power grid has received extensive concern and excited wide research interests [1].The model accuracy of solar PV is the key factor to investigate the mutual influences between it and a power grid
The fastresponding generator method injects bus voltage and frequency, and it does not require the phase-angle data, so it is more suitable for solar PV plant model validation
Summary
With the rapid increase of solar photovoltaic (PV) power integration, its impact on the power grid has received extensive concern and excited wide research interests [1]. The model accuracy of solar PV is the key factor to investigate the mutual influences between it and a power grid. This problem has not been well solved. Most research of solar PV model validation is concentrated in solar PV inverter and solar PV unit, and is not enough for solar PV plant or plants. With the wide application of PMU (phasor measurement unit) and WAMS (widearea measurement system), hybrid data dynamic simulation method is proposed and has been successfully applied in synchronous generator model validation, load model validation, and so on [2,3,4]
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