Robust Normalized Mixed-Norm Adaptive Control Scheme for PQ Improvement at PCC of a Remotely Located Wind–Solar PV-BES Microgrid

Chishti, Farheen; Murshid, Shadab; Singh, Bhim

doi:10.1109/tii.2019.2923641

Cited by 39 publications

(7 citation statements)

References 33 publications

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“…x T (𝐷 + 𝐶)𝑥 ≥ 𝜆 1 (𝐷 + 𝐶)𝑥 𝑇 𝑥 (7) where x = {x1, ..., xn} is the state variable that should be exchanged between the neighboring DG units, ci is the interest pinning, c = diag {c1, ..., cn}, λ2 is the second smallest eigenvalue of D which is also returned to algebraic connection D and λ1 is the smallest eigenvalue of (D + C).…”

Section: A Graph Theorymentioning

confidence: 99%

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Optimized Two-Level Control of Islanded Microgrids to Reduce Fluctuations

et al. 2022

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The main problem in the operation of micro-grids is controlling the voltage and frequency. The inertia of the whole grid is low, so the operation of the system is interrupted by sudden changes in load or incidence in the absence of a proper control system. In order to solve this issue, various control structures have been proposed. In this paper, an optimal distributed control strategy for coordinating multiple distributed generation instances is presented in an islanded microgrid. A secondary frequency control method is implemented in order to eliminate voltage deviation and reduce the small signal error. In this layer, an optimized PID controller is used. PID controller optimization is carried out via the Honey Badger Algorithm, and results are obtained using the MATLAB software. According to the results, inadequate adjustment of a secondary loop leads to poor and unacceptable outcomes, and the necessary power quality is not achieved. However, by using the proposed method, a proper performance of the microgrid in the face of disturbances is achieved.

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Section: A Graph Theorymentioning

confidence: 99%

“…For each of these modes, various control structures have been presented. In [5]- [7], PQ control for the network-connected mode was proposed. Given that, in this case, the voltage and frequency are provided by the main network, only adjusting the grid's overlapping power and applying proper power sharing are required.…”

Section: Introductionmentioning

confidence: 99%

Optimized Two-Level Control of Islanded Microgrids to Reduce Fluctuations

et al. 2022

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“…However, these techniques are plagued by unsatisfactory steady‐state performances with low signal‐to‐noise ratios. To overcome the issues in convergence rate of weight signals and less mean square deviation, the mixed LMS–LMF technique has been reported in Srinivas et al 14 A robust normalized mixed‐norm (RNMN) adaptive control to overcome convergence rate and steady‐state stability problems is documented in Chishti 15 . A least mean mixed‐norm (LMMN) control with lesser mean square error (MSE) and accelerated convergence for the extrication of fundamental components is proposed in Chisti et al 16 An adaptive reweighted zero attracting least mean square (RZA‐LMS) control with self‐adjusting step size capability to minimize MSE and approached quickly is reported in Nazir et al 17 …”

Section: Introductionmentioning

confidence: 99%

Filtered X least mean fourth‐driven intelligent control for power quality augmentation and dynamic stability reinforcement of grid intertie wind–photovoltaic systems

Nazir

Ahmad

Hussain

2022

Circuit Theory & Apps

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An advanced topology comprising a wind-turbine driven synchronous generator (SG) and solar photovoltaic (PV) array to address the power quality (PQ) concerns and the uncertainty in renewable energy generation is proposed in this paper. The fluctuations in wind speed and insolation are soaked up by utilizing successively interfaced power electronic converters (PECs), namely, SG side converter (SGC) and utility grid side converter (UGC) integrated with a DC link capacitor and a PV array. SGC is controlled by estimating the rotor position from the stator voltage and current measurement data and maintains unity power factor (UPF) at stator terminals. UGC is controlled by employing filtered X least mean fourth (FXLMF) control, which ensures superior convergence performance and reduced computational complexity. Besides, it performs operations like reactive power compensation, enhancement of PQ, load and power balancing during steady-state and dynamic conditions. The notion of optimal fuzzy reasoning is instilled which generates a fuzzy scheme with inherent optimal-tuning characteristics to bring about considerable improvement in system performance. A water cycle algorithm (WCA) tuned fuzzy logic controller (FLC) is employed for dynamic stability enhancement leading to the generation of accurate loss component, i loss , which bolsters the ability of VSC to accurately extricate weight signals and the fundamental load current component. This improves regulation of DC link voltage during dynamic load, insolation and wind conditions. The veracity of the proposed model is verified under wind gusts and the bell-shaped irradiance curve. Extensive simulation results obtained in MATLAB corroborate the efficacy of the system.filtered X least mean fourth (FXLMF) control, fuzzy logic controller (FLC), power quality (PQ), SG utility grid side converter (UGC), side converter (SGC), solar photovoltaic (PV) array, synchronous generator (SG), water cycle algorithm, wind energy conversion system (WECS)

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“…grid‐connected mode), where the RESs are utilized to extract the maximum of the available power, supply it to the connected loads and the surplus power is transferred to the utility grid [4]. The main intention of grid‐connected RESs‐based generation systems is to transfer a better‐quality current to the utility grid despite the presence of local loads at the point of common coupling (PCC) [5]. However, in the grid‐connected WTs‐/PV arrays‐based DGSs, the operating conditions other than the rated wind speed/solar insolation result in low energy conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

A state‐of‐the‐art comprehensive review of modern control techniques for grid‐connected wind turbines and photovoltaic arrays distributed generation systems

Basit

Nguyen

Ryu

et al. 2022

IET Renewable Power Gen

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This paper presents a state-of-the-art comprehensive review of the modern control techniques for the widely recommended two distributed generation systems (DGSs) using permanent magnet synchronous generator (PMSG)-and doubly-fed induction generator (DFIG)-based wind turbines (WTs) and photovoltaic (PV) arrays in grid-connected applications. The already published review papers individually study each DGS and also lack a systematic discussion on the control techniques without any suitable classification. This makes it difficult to study the comparatively improved performance of each control technique and comprehensively understand the control requirements of overall DGSs. Unlike existing literature, this paper first distinctively presents the generalized control configurations for both DGSs in the form of control blocks (CBs). Second, the modern control techniques suggested for each DGS are uniquely classified based on the CBs. Third, each CB is studied in detail considering its required control operation for the particular DGS component and recently proposed control techniques for its implementation. Furthermore, a detailed data analysis and comparative graphical illustrations are provided to appropriately study the merits and demerits of every state-of-the-art control technique. Finally, the useful future research directions are presented to realize improved hardware components and control techniques for the grid-connected WTs and PV arrays DGSs.

show abstract

Robust Normalized Mixed-Norm Adaptive Control Scheme for PQ Improvement at PCC of a Remotely Located Wind–Solar PV-BES Microgrid

Cited by 39 publications

References 33 publications

Optimized Two-Level Control of Islanded Microgrids to Reduce Fluctuations

Optimized Two-Level Control of Islanded Microgrids to Reduce Fluctuations

Filtered X least mean fourth‐driven intelligent control for power quality augmentation and dynamic stability reinforcement of grid intertie wind–photovoltaic systems

A state‐of‐the‐art comprehensive review of modern control techniques for grid‐connected wind turbines and photovoltaic arrays distributed generation systems

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