Title |
Control Strategy for a Grid Stabilization of a Large Scale PV Generation System based on German Grid Code |
Authors |
Young-Sang Bae ; Rae-Young Kim |
DOI |
10.6113/TKPE/2014.19.1.41 |
Keywords |
BDEW; grid stabilization; power control; VDE-AR-N |
Abstract |
The rising penetration of renewable energy resulted in the development of grid-connected large-scale power plants. Therefore, grid stabilization, which depends on the system-type or grid of each country, plays an important role and has been strengthened by different grid codes. With this background, VDE-AR-N 4105 for photovoltaic (PV) systems connected to the low-voltage grid and the German Association of Energy and Water Industries (BDEW) introduced the medium-voltage grid code for connecting power plants to the grid and they are the most stringent certifications. In this paper, an optimal control strategy scheme for three-phase grid-connected PV system is enhanced with VDE-AR-N 4105 and BDEW grid code, where both active/reactive powers are controlled. Simulation and experimental results of 100kW PV inverter are shown to verify the effectiveness of the proposed implemental control strategy. |