Modified Control Technique of DFIG for Power Quality Improvement

Patel, Krishna S.; Makwana, Vijay H.

doi:10.1080/09747338.2021.1930591

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…For a known value of wind speed,  is calculated as a function of rotor speed ( ) m  as shown in (4). At the optimum power case, (4) can be formulated as (5).…”

Section: A Wind Turbine Modellingmentioning

confidence: 99%

“…Therefore, the process used in controlling back-to-back converters proves to display a vital role for the operating characteristics in DFIG. Because of its flexibility in the real power and reactive power decoupled control, vector control strategy is frequently employed in DFIG systems [5]. The working range for variable speed WECS is primarily divided into four regions, Region-1 (R-1), R-2, R-3, and R-4, as represented in Fig.…”

Section: Introductionmentioning

confidence: 99%

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An SSM-PSO Based MPPT Scheme for Wind Driven DFIG System

et al. 2022

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In this work, a searching space minimization-based particle swarm optimization (SSM-PSO) scheme has been proposed for maximum power point tracking (MPPT) in a doubly fed induction generator (DFIG) based wind energy conversion system (WECS). DFIG displays non-linearity in 𝑃 − 𝜔 characteristics. So different types of conventional and optimization-based schemes are developed for MPPT. The drawbacks in the conventional perturb and observe (P&O) scheme has been successfully abolished by the proposed SSM-PSO method. Because of its weather-insensitive nature, the conventional P&O MPP tracking scheme results in the fluctuation of DFIG output under a sudden change in wind speed. To avoid this problem, maximum and minimum limits for the optimal rotor speed have been determined in the proposed SSM-PSO scheme. Further, the obtained limits for rotor speed are employed to improve the searching space within the non-linear 𝑃 − 𝜔 curve. This initial confinement of particles to a limited searching space in SSM-PSO results in a faster response of the system. Since the proposed SSM-PSO is atmosphere sensitive, it avoids fluctuations under an abrupt variation in wind velocity. The improved initialization part of SSM-PSO leads to better dynamic characteristics compared to existing P&O and optimization-based schemes. The proposed SSM-PSO scheme is implemented for a 2MW DFIG system in MATLAB Simulink atmosphere and showed satisfactory results.

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“…For a known value of wind speed,  is calculated as a function of rotor speed ( ) m  as shown in (4). At the optimum power case, (4) can be formulated as (5).…”

Section: A Wind Turbine Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An SSM-PSO Based MPPT Scheme for Wind Driven DFIG System

et al. 2022

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“…Clients ranging from domestic to industrial are demanding the utility companies to enhance the quality of power delivered. Power electronics devices integrated with unbalanced reactive loads generate PQ problems introducing source currents that are'distorted and unbalanced' (Mangarajand Sabat, 2021;Patel and Makwana, 2021). Generally, capacitor banks and passive filters are employed to enhance the PQ in PUN.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of BB-QZSI-Based DSTATCOMUnder Dynamic Load Condition

Mangaraj¹,

Sabat²,

Barisal³

et al. 2022

Power Electronics and Drives

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This paper presents the shunt compensation performance of quasi-Z-source inverter (QZSI) and back to back connected QZSIs (BB-QZSI) to address the power quality (PQ) issues in the three-phase three-wire power utility network (PUN). Generally, these PQ issues are poor voltage regulation, low power factor (PF), source current distortion, unbalanced voltage, etc. The proposed BBQZSI-based distribution static compensator (DSTATCOM) consists of two QZSIs with a common dc-link capacitor. Because the QZSI could achieve buck/boost conversion as well as DC to AC inversion in a single-stage and the back to back configuration decreases the system down time cost (if a fault occurs in one QZSI the other can continue the shunt compensation). Particularly, icos ϕ control algorithmcontrol algorithm is implemented to generate proper switching pulses for the switches of DSTATCOM. The effectiveness of the BB-QZSI is verified through simulation studies over QZSI using MATLAB/Simulink software satisfying the recommended grid code.

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Reduction of power conversion losses in AC-DC coupled hybrid micro-grid under grid distorted voltage scenario

Nagaraj

2022

Electric Power Systems Research

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Modified Control Technique of DFIG for Power Quality Improvement

Cited by 3 publications

References 15 publications

An SSM-PSO Based MPPT Scheme for Wind Driven DFIG System

An SSM-PSO Based MPPT Scheme for Wind Driven DFIG System

Performance Evaluation of BB-QZSI-Based DSTATCOMUnder Dynamic Load Condition

Reduction of power conversion losses in AC-DC coupled hybrid micro-grid under grid distorted voltage scenario

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