Impact of symmetrical short-circuit fault on doubly-fed induction generator controller

Nazir, Muhammad Shahzad; Wang, Qi

doi:10.1080/00207217.2020.1756447

Cited by 13 publications

(5 citation statements)

References 26 publications

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“…The authors simulated and identified the parameters only for a symmetrical fault alone which won't be helpful for the design to design the protective devices and sensors. In this paper (11) only single to-ground fault alone was analysed and crowbar protection was implemented to protect the converters from high currents. But, double line to ground fault, Line to line fault are not analysed and their parameters were also not identified.…”

Section: Double Line To Ground Faultmentioning

confidence: 99%

“…The disruption at the machine side converter (MSC) as well as the Grid side converter (GSC) during an appropriate malfunction is explored. However, symmetrical fault analysis is inadequate for the construction of predictive as well as preventive equipment (11) . The single line-to-ground fault behaviours of the DFIG wind turbine are analysed and crowbar protection is implemented to protect the wind machines from the high rotor current.…”

Section: Introductionmentioning

confidence: 99%

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Impact of an Unsymmetrical Fault on the Controller of the DFIG Wind Farm

Magesh¹,

Annie²,

Sambath³

et al. 2023

IJST

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Objectives: DFIG-based wind farms are predominant in their performance when compared to other types of generators. In the field study, due to transient events, converters at the machine side and grid side are affected. To protect the converters from an abnormal operation, overcurrent protective relays have to be designed and incorporated. Unsymmetrical fault analysis are help in the design of protective devise and speed sensors. Methods: DFIG-based wind systems are developed using the DIgSILENT power factory software and EMT simulations are executed during the unsymmetrical faults applied near the Machine Side Converter (MSC) and Grid Side Converter(GSC). Findings: During the simulation studies, various parameters are transient time, maximum current, steady-state, and voltage drop identified near the MSC and GSC. The short circuit parameters are attenuated during the unsymmetrical faults and the rotor maximum current increases by 2 to 3 times the rated current per unit, 40% to 50% voltage dip, and the current reach the steady state value after 1.213 sec during the fault. The parameters are affected more when a fault occurs near the GSC when compared to a fault near MSC. Novelty: These research findings will contribute to a better understanding and improvement of sensor sensitivity, as well as the development of control mechanisms, and protection tactics in designing more accurate and appropriate for DFIG-WT.

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Section: Double Line To Ground Faultmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of an Unsymmetrical Fault on the Controller of the DFIG Wind Farm

Magesh¹,

Annie²,

Sambath³

et al. 2023

IJST

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“…Many recent studies have focused on the capacity confguration of ESS with various RES, which are broadly classifed into two distinct groups: technical and economical [5]. Te layout of storage capacity for energy based on economic variables typically takes into account revenue and various cost factors during the power plant's lifecycle [6], as well as the total expense of operation of the optical storage facility [7].…”

Section: Introductionmentioning

confidence: 99%

Design of PV, Battery, and Supercapacitor-Based Bidirectional DC-DC Converter Using Fuzzy Logic Controller for HESS in DC Microgrid

Ramu,

Vairavasundaram,

Aljafari

et al. 2024

Journal of Electrical and Computer Engineering

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Renewable energy sources (RES) are becoming more popular globally as a reaction to critical energy concerns. Modern energy management technologies are used to maximize their efficiency while preserving the reliability of the grid. A hybrid energy storage system (HESS) connects to the DC microgrid through the bidirectional converter, allowing energy to be transferred among the battery and supercapacitor (SC). In this paper, a fuzzy logic control (FLC) technique is developed for PV-based DC microgrid systems that use both batteries and SCs. The proposed method uses the unbalanced energy from the battery pack to enhance the overall effectiveness of the HESS. The FLC approach is performed to validate under conditions of variable irradiance using MATLAB Simulink. When sudden changes in irradiance occur, the proposed FLC brings the voltage back to the desired level in terms of transient response like 33 ms settling times and 19% overshoot values. The results exhibit that the proposed method is more efficient in terms of time response, power output, increasing battery life, and ensuring a continuous supply of the PV system.

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“…In recent years, wind power generation has been one of the most mature and promising renewable energy power generation technologies [1,2]. With the increase in wind power penetration in the power system, the operation flexibility and security stability of the power system have been greatly affected and impacted [3].…”

Section: Introductionmentioning

confidence: 99%

Generation of second harmonic component of fault current in a doubly‐fed induction generator and mitigation measures for transformer protection

Zheng

Yan

et al. 2021

IET Renewable Power Gen

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The transient characteristics of short-circuit current (SCC) in doubly-fed induction generator (DFIG) are quite different from the widely researched conventional synchronous machines. However, the second harmonic characteristics of SCC that impact the reliability of the transformer protection have not been accurately analysed. This paper presents the generation mechanism of second harmonic SCC in DFIG by deducing the dynamic response of rotor-side converter, with particular attention to the influences of the voltage drop, harmonic component of stator voltage, frequency coupling, and deviation of the phase-locked loop. When grid fault occurs, the terminal voltage sag leads to fluctuations in the active power, then the response of converter to power fluctuation and the frequency coupling leads to the second harmonic current in the abc reference frame. And the second harmonic current injected into the grid leads to fluctuations in the voltage disturbance term and deviation of the phase-locked loop, which, in turn, affects the second harmonic current. Based on the analysis, the mitigation measures for the second harmonic current are proposed. Simulations are implemented to verify the theoretical analysis.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Impact of symmetrical short-circuit fault on doubly-fed induction generator controller

Cited by 13 publications

References 26 publications

Impact of an Unsymmetrical Fault on the Controller of the DFIG Wind Farm

Impact of an Unsymmetrical Fault on the Controller of the DFIG Wind Farm

Design of PV, Battery, and Supercapacitor-Based Bidirectional DC-DC Converter Using Fuzzy Logic Controller for HESS in DC Microgrid

Generation of second harmonic component of fault current in a doubly‐fed induction generator and mitigation measures for transformer protection

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