This study presents an improved, communication-free Fault Ride-Through (FRT) strategy for type-3 and type-4 wind turbine integrated modular multilevel converter-based high-voltage direct current (MMC-HVDC) systems in offshore power plants (OWPPs). The research aims to enhance the reliability resilience of OWPPs by ensuring their connection with AC grids remains intact during after faults. Simul...

Abstract In this paper, an overview of several strategies for fault ride-through (FRT) capability improvement a doubly-fed induction generator (DFIG)-based wind turbine is presented. Uncertainties and parameter variations have adverse effects on the performance these strategies. It desirable to use control method that robust such disturbances. Auto disturbance rejection (ADRC) one most common m...

As the number of converter-interfaced distributed energy resources connected to power system continues increase rapidly, recent grid codes require these grid-tied converters maintain connection during faults ensure supply security and reliability. In this work, we analyze oscillation in injected real reactive that a voltage source converter (VSC) introduces as it attempts contribute quality imp...

Due to a limitation in the magnitude of three-phase output inverter currents, active power photovoltaic (PV) unit has been de-rated during low voltage ride through, which brings great instability risk system. With increase penetration rate new energy, impact shortage on system transient stability increases. It is significance analyze this stability. This article explores methods improve capabil...

Voltage source converter (VSC)-based high voltage direct current (VSC-HVDC) interconnectors can realize accurate and fast control of power transmission among AC networks, and provide emergency power support for AC networks. VSC-HVDC interconnectors bring exclusive fault characteristics to AC networks, thus influencing the performance of traditional protections. Since fault characteristics are r...

The aim of this work is to describe the behavior three-phase inverters connected a faulty grid by means parametric approach which gives rise limaçon Pascal curves and 3D figures formed injected currents during fault. analytical study given in complex form transformed Park variables, simulation results are obtained MATLABTM. show that analysis can be an easy useful tool predict operating under v...