Wang Jili

Model validation of PV power generation unit based on grid voltage disturbance test

To establish accurate grid-connected photovoltaic (PV) power generation model is the basic of studying PV generation control, protection and mechanism of interaction with power grid. In the paper, the assumptions and requirements of model validation standard FGW-TG4 will be explained, and the result of grid voltage disturbance test will be compared to simulation result based on a generic modeling approach. Defining periods of before, during and after voltage drop, the deviations between simulations and measurements were calculated, and the deviation was within an allowed range.

Modeling of photovoltaic generation unit for power system studies

The photovoltaic (PV) generation is growing quickly, so it is particularly necessary to investigate the interaction of PV generation and power system. In this paper, the modeling of PV generation unit for power system studies is investigated. The model structure is introduced, and the control model is developed to meet the grid requirements of Chinese standard. The impact of solar irradiation variation is considered in the model. Finally, the simulation results are given.