Incorporating Switched Modulated Power Filter Compensator to Enhance Microgrid Stability Under Fault Provoked Islanding Conditions

Microgrid (MG) gains higher potential and plays a key role in grid infrastructure upgrade. Although MG have many benefits, its performance during fault caused islanding conditions still needs more attentive investigations. In this context, the MG load types and the behavior of the distributed genera...

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Bibliographic Details
Published in:Electric power components and systems 2019-07, Vol.47 (11-12), p.1046-1059
Main Authors: Salem, Ahmed A., Alaboudy, Ali H. Kasem, Abdelsalam, Abdelazeem A., Talaat, Hossam E. A.
Format: Article
Language:English
Subjects:
Control stability
Distributed generation
distributed generations
Dynamic stability
Electric potential
Electric power distribution
Electric power systems
Harmonic distortion
Induction motors
inverter control strategies
Inverters
microgrid stability
modulated power filter compensator (MPFC)
Stability analysis
total harmonic distortion (THD)
Voltage
Waveforms
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Summary:Microgrid (MG) gains higher potential and plays a key role in grid infrastructure upgrade. Although MG have many benefits, its performance during fault caused islanding conditions still needs more attentive investigations. In this context, the MG load types and the behavior of the distributed generations (DGs) control system have the significant impact on the stability of MG. This article analyzes the influence of various control techniques of the inverter DG unit on the dynamic performance MG after fault-provoked islanding conditions. To enhance the MG stability and the quality of voltage waveform, an adapted MG configuration equipped with a low-cost switched modulated power filter compensator (MPFC) is proposed. Using MPFC alongside the inverter DG unit gives adequate solution to overcome the shortcomings of the inverter and the flexibility of the interfacing control scheme. The MG structure equipped with MPFC is simulated using Matlab/Simulink software package. A wide perspective on the simulation results indicates that the MG stability is highly vulnerable to the inverter DG control techniques. Further, the MG may lose its stable operation due to some load type characteristics. The proposed MG structure with the MPFC can withstand longer fault durations and give better stability performance especially with induction motor (IM) loads. Moreover, the MG equipped with the MPFC has the ability to keep the voltage total harmonic distortion (THD) within the acceptable limits.
ISSN:1532-5008
1532-5016
DOI:10.1080/15325008.2019.1629511