Abstract
The resolution of the environment pollution depends on renewable energy sources, such as wind energy systems. These systems face transient and voltage stability issues with wind energy employing fixed-speed induction generators to be augmented with resistive type Superconducting Fault Current Limiter (SFCL) and Superconducting Magnetic Energy Storage (SMES) devices. The use of a combined model based on SFCL and SMES for promoting transient and voltage stability of a multi-machine power system considering the fixed-speed induction generators is the primary focus of this study. Our contribution is the development of a new model that combines the advantages of SFCL and SMES. The proposed model functions assure flexible control of reactive power using SMES controller while reducing fault current using superconducting technology-based SFCL. The effectiveness of the proposed combined model is tested on the IEEE11-bus test system applied to the case of a three-phase short circuit fault in one transmission line.
Highlights
With the increased penetration of the distributed generations (DGs), the mostly used induction machines are wind generators
To investigate the efficiency and the robustness of the proposed Superconducting Fault Current Limiter (SFCL) and Superconducting Magnetic Energy Storage (SMES) based controller on the power system transient stability in the presence of distributed wind generation, the model is integrated in the IEEE benchmark four-machine two-area test system in the case of a three phase short circuit fault in the transmission line
Bus 9 is considered as the Point of Common Coupling (PCC) where the WG is connected and the main role of the SMES is to compensate for this reactive power
Summary
With the increased penetration of the distributed generations (DGs), the mostly used induction machines are wind generators. In power system stability studies, the term transient stability usually refers to the ability of the synchronous machines to remain in synchronism during brief periods that follow large disturbances, such as severe lightning strikes, loss of heavily loaded transmission lines, loss of generation stations, or short circuits on buses [34]. The potential influence of the combined application of SFCLs and shunt controller SMES is proposed and investigated for improving both transient stability and voltage regulation of the power system containing a distributed wind generation based on conventional fixed speed induction generator. Simulation results for the system under study are presented and discussed They show that the optimal location selected by the proposed method improves the transient stability of the power system when a fault occurs
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