Investigation of a Modified Flux-Coupling-Type SFCL for Low-Voltage Ride-Through Fulfillment of a Virtual Synchronous Generator

Chen, Lei; Li, Guocheng; Chen, Hongkun; Ding, Meng; Zhang, Xuyang; Li, Yanhong; Xu, Ying; Tang, Yuejin

doi:10.1109/tasc.2020.2970628

Cited by 31 publications

(6 citation statements)

References 23 publications

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“…Figure 14(a) depicts the FC-structural SFCL's layout. It is made up of a superconducting coil, a MOV, a controlled switch S, and a coupling transformer [97,98]. S is closed in a regular condition, and SC has no resistance; and when S is open, considerable resistance is found.…”

Section: Sfcl Technique Te Gs Application Of Sfcl Raises the Terminal...mentioning

confidence: 99%

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

Mahmoud

Atia²,

Esmail

et al. 2023

International Transactions on Electrical Energy Systems

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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.

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Section: Sfcl Technique Te Gs Application Of Sfcl Raises the Terminal...mentioning

confidence: 99%

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

Mahmoud

Atia²,

Esmail

et al. 2023

International Transactions on Electrical Energy Systems

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“…At the same time, 𝐷 affects the steady-state characteristics of 𝐺 ∆ , so the existence of 𝐺 ∆ makes the output active power unable to realize the zero error tracking of the command value. The steady-state value of active power is [16]:…”

Section: Influence Of Grid Frequency Deviation On Active Frequency Of...mentioning

confidence: 99%

Automatic coordination control technology of interconnected medium voltage direct current (MVDC) distribution network based on frequency deviation

Ji¹

2023

J. vibroeng.

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The automatic coordination control technology of interconnected medium voltage direct current (MVDC) distribution network based on frequency deviation is studied to improve the influence of frequency deviation on the operation of MVDC distribution network. Firstly, two regional interconnected MVDC distribution networks are built, and connected and operated in parallel with the AC power grid through the medium voltage single-phase AC port, to realize the interconnection of different regions of the distribution network according to the MVDC feeder. Through the mutual power support of each division of the distribution network, the frequency of each division of the distribution network is the same, and the frequency deviation of each division is reduced. According to the zoning frequency characteristics of the interconnected MVDC distribution network, the control strategy of the flexible interconnection device and the control strategy of the photovoltaic power generation system are combined to realize the automatic coordinated control of the frequency deviation of the interconnected MVDC distribution network. The experimental results show that this technology can improve the frequency deviation of the interconnected MVDC distribution network, realize the automatic coordinated control of the distribution network, and the fluctuation range of the tie line power deviation in each region decreases significantly.

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“…The placement of the SFCL considers the value of the sensitivity analysis of the network. Attempts have been made to improve transient stability with flux-coupling modifications [9]. The RSFCL has achieved better results than the LSFCL in this regard.…”

Section: Introductionmentioning

confidence: 99%

Optimal placement of resistive superconducting fault current limiter by considering short‐circuit current and transient stability of power system

Hafidz,

Mahendra,

Pujiantara

et al. 2023

IET Generation Trans & Dist

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High level of fault currents has become one of the most challenging issues, along with increased electrical energy consumption and power grid expansion. However, some of the previous work was limited to installing limiters on designs and installing them on small plans. Here, the optimal placement of a resistive‐type superconducting fault current limiter (RSFCL) to achieve good power system transient stability is proposed. The proposed method has several advantages. First, procedure fault analysis is applied to consider the magnitude of the short‐circuit currents and the line located close to the generator for the placement of the device. Compared with other methods, it can directly find the exact line to be installed RSFCL. Second, the stability assessment is validated using the time domain simulation by installing limiters with varying capacities in any location. Third, parameters were analysed to evaluate the proposed method's effectiveness, including angular speed, rotor angular velocity, and generator rotor angle in a multi‐machine system. The result reveals that the placement of the limiter on the line with the most significant short‐circuits value on the line closest to the generator increases the power system stability more than the placement in other locations.

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Investigation of a Modified Flux-Coupling-Type SFCL for Low-Voltage Ride-Through Fulfillment of a Virtual Synchronous Generator

Cited by 31 publications

References 23 publications

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

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

Automatic coordination control technology of interconnected medium voltage direct current (MVDC) distribution network based on frequency deviation

Optimal placement of resistive superconducting fault current limiter by considering short‐circuit current and transient stability of power system

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