International Journal of Industrial Electronics and Electrical Engineering(IJIEEE).
Paper Title - Harmonic Filtering in a Power Grid with Power Generation
With the advancement of technology, electricity generation using wind has drawn an increased attention in the
world. As the amount of wind power integrated into the system is increased, it causes power quality and stability problems.
Therefore power utilities are developing stringent grid codes which are to be satisfied by the wind power producers. Voltage
control capability, reactive range capability, frequency control ability and fault ride through capability are among the major
requirements stipulated in the grid codes. Due to the variable speed operation capability of Doubly Fed Induction Generators
(DFIGs), they are becoming popular in wind power generation. The voltage control of the DFIG wind farm has been
identified as the latest challenge with the present grid code requirements. In this paper, for bus voltage control and to reduce
power system harmonics, the active filtering technique is used in the mechanism of wind turbine control. Here a gridconnected
doubly fed induction generator (DFIG) is considered in a wind turbine. In addition to harmonics that are related to
the DFIG, a nonlinear load is also added to the system to simulate loads that produce more harmonics. The active filtering
approach is implemented to mitigate current and voltage harmonics, which is one of the main concerns of distribution
systems. A bus voltage control strategy is also used for this purpose. The main advantages of this article are using a simple
and effective active filtering technique and applying a voltage control method to mitigate the mentioned harmonics. The
presented methodology is examined in both local and remote control conditions and also for both normal and contingency
(load change) situations. Simulation results obtained from applying the presented method on a distribution test system
confirm suitable performance of the proposed strategy to mitigate current and voltage harmonics.
Keyword - WECS, Doubly fed induction generator (DFIG), Harmonic reduction, Active filter, Voltage control,
Author - Glaoui Hachemi
Citation - Glaoui Hachemi ,
Glaoui Hachemi " Harmonic Filtering in a Power Grid with Power Generation " ,
International Journal of Industrial Electronics and Electrical Engineering (IJIEEE) , Volume-7,Issue-4 ( Apr, 2019 )