Evaluation and Comparison of Different Methods for Improving Fault Ride-Through Capability in Grid-Tied Permanent Magnet Synchronous Wind Generators

Abstract

Several advantages make wind-driven permanent magnet synchronous generators (PMSGs) very promising in the wind energy market, especially their fault ride-through capabilities. With the high penetration levels of today, both the grid and wind power (WP) systems are being affected by each other. Due to grid faults, the DC-bus in PMSG systems typically experiences overvoltage, which can negatively affect the generator parameters and trip the system. However, advancements in power electronics, control systems, fault limiters, FACTS, and energy storage technology make it possible to find and design satisfactory solutions and approaches. The most recent FRTC-improving techniques are mainly modified or external techniques based on controllers in PMSG-based WP. This paper evaluates the in-depth schemes of FRTC, introducing the underlying theory and traits of the different approaches to highlight the advantages and drawbacks of each. Five scenarios of DC-link voltage under zero-grid voltage are carried out by using the MATLAB SIMULINK program to assess the FRTC methods. This study shows that external device-based approaches can be efficient, but some of them are expensive, thus updated controller methods are recommended to cut costs. Research findings of this study are expected to support the deployment of FRTC technologies, as well as provide valuable input into WP research on grid integration.

Application of Whale Optimization Algorithm Based FOPI Controllers for STATCOM and UPQC to Mitigate Harmonics and Voltage Instability in Modern Distribution Power Grids

“…These harmonics are fed into the PCC, and the nonlinear load current harmonics are consequently reduced in sinusoidal supply [19]. The APF family can be integrated into the shunt, series, and shunt + series configurations such as STATCOM, dynamic voltage restorer (DVR), and unified power quality conditioner (UPQC), respectively, to mitigate various PQ issues [20][21][22].…”

Applications of Kepler Algorithm-Based Controller for DC Chopper: Towards Stabilizing Wind Driven PMSGs under Nonstandard Voltages

“…After clearing the problem, the WFs must supply the PS with active power (P), following the GC. The Danish GC shown in Figure 1, states that WFs with a nominal capacity over 11 kW must maintain grid connectivity for 0.5 s in the event of PCC VD up to 80% (Area B in Figure 1a) [18]. To keep the PCC running for this brief period, the WF must inject reactive power (Figure 1b) [19].…”

Enhancing the Functionality of a Grid-Connected Photovoltaic System in a Distant Egyptian Region Using an Optimized Dynamic Voltage Restorer: Application of Artificial Rabbits Optimization

“…In actuality, 94% of the nation’s overall primary energy consumption comes from fossil fuels (FFs). With Egypt’s small oil and gas reserves, this strong reliance on FFs not only has a negative impact on the environment, but also significantly strains the government’s finances [ 13 , 14 ].…”