Power system stability control using Voltage Source Converter based HVDC in power systems with a high penetration of Renewables

2014 ◽  
Author(s):  
Markus Imhof ◽  
Goran Andersson
Keyword(s):  
Power Systems ◽  
Power System ◽  
Power System Stability ◽  
Stability Control ◽  
System Stability ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
High Penetration

scholarly journals Quasi-Z-Source Inverter-Based Photovoltaic Power System Modeling for Grid Stability Studies

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 508
Author(s):  
Lluís Monjo ◽  
Luis Sainz ◽  
Juan José Mesas ◽  
Joaquín Pedra
Keyword(s):  
Power Systems ◽  
Power System ◽  
System Modeling ◽  
Power Conversion ◽  
System Stability ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Stability Problems ◽  
Sensitivity Studies ◽  
And Control

Quasi-Z-source inverters (qZSIs) are becoming a powerful power conversion technology in photovoltaic (PV) power systems because they allow energy power conversion in a single stage operation. However, they can cause system resonances and reduce system damping, which may lead to instabilities. These stability problems are well known in grid-connected voltage source converter systems but not in quasi-Z-source inverter (qZSI)-based PV power systems. This paper contributes with Matlab/Simulink and PSCAD/EMTDC models of qZSI-based PV power systems to analyze transient interactions and stability problems. These models consider all power circuits and control blocks of qZSI-based PV power systems and can be used in sensitivity studies on the influence of system parameters on stability. PV power system stability is assessed from the proposed models. The causes of instabilities are analyzed from numerical simulations and possible solutions are proposed.

scholarly journals Technical impacts of high penetration levels of wind power on power system stability

2016 ◽  
Vol 6 (2) ◽  
pp. e216 ◽  
Author(s):  
D. Flynn ◽  
Z. Rather ◽  
A. Ardal ◽  
S. D'Arco ◽  
A.D. Hansen ◽  
...  
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power System Stability ◽  
System Stability ◽  
High Penetration
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