A New Perspective of Wind Power Grid Codes Under Unbalanced and Distorted Grid Conditions

Islam, Monirul; Hossain, Eklas; Padmanaban, Sanjeevikumar; Brice, Charles W.

doi:10.1109/access.2020.2966907

Cited by 8 publications

(12 citation statements)

References 26 publications

(62 reference statements)

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“…The basic development for trees is related to a very rooted structure. From this point of view, underground root practices are considered cutting edge innovations [11], [25]. This notion implies that the main tree provides various roots to begin the search.…”

Section: Rto Algorithmmentioning

confidence: 99%

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Rooted Tree Optimization for the Backstepping Power Control of a Doubly Fed Induction Generator Wind Turbine: dSPACE Implementation

et al. 2021

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With the development of wind power generation in recent years, several studies have dealt with the active and reactive power control of wind power systems, along with the quality of energy produced and the connection to distribution networks. In this context, this research proposes a new contribution to the field. The major objective of this work is the development of a nonlinear adaptive backstepping control technique applied to a DFIG based wind system and an optimization technique that uses the rooted tree optimization (RTO) algorithm. The backstepping control strategy is based on the Lyapunov nonlinear technique to guarantee the stability of the system. It is applied to the two converters (i.e., machine and network sides) and subsequently improved with estimators to make the proposed system robust to parametric variation. The RTO technique is based on monitoring the behavior of the underlying foundation of trees in search of underground water in accordance with the level of underground control. The solution proposed for the control is validated using two methods: (1) a simulation on MATLAB/Simulink to test the continuation of the reference (real wind speed) and the robustness of the system and (2) a real-time implementation on a dSPACE-DS1104 board connected to an experimental bench in a laboratory. Simulation and experimental results highlight the validation of the proposed model with better performance compared with other control techniques, such as sliding mode control, direct power control, and field-oriented control.

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Section: Rto Algorithmmentioning

confidence: 99%

“…The development of bases and services for trees under the ground is highly connected to their root framework. From this perspective, the practices of roots under the ground are considered cutting-edge innovations [5], [11]- [25]. This notion implies that the primary of the tree provides various roots to begin the search.…”

Section: Rto Algorithmmentioning

confidence: 99%

Rooted Tree Optimization for the Backstepping Power Control of a Doubly Fed Induction Generator Wind Turbine: dSPACE Implementation

et al. 2021

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“…Accordingly, some new functions and features (such as LVRT) recommended by updated grid codes and standards can be added to the inverter control algorithm [19,20,23,[26][27][28][29][30][31][32][33][34]. Such regulations obligate the grid-tied inverters to withstand unintentional grid voltage sag for a specific duration based on some LVRT profiles, which are customised in many countries [19,20,31,[35][36][37][38]. A modern control technique that has been utilised in recent years to control the operation of gridtied inverters is the FCS-MPC [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55].…”

Section: Literature Reviewmentioning

confidence: 99%

“…The inverter control scheme is incorporated with an LVRT option to make it compatible with modern grid integration regulations and standards such as VDE-AR-N 4120, IEC 62477-1 and IEEE 1547 [19,20,26,27,31,[35][36][37].…”

Section: Lvrt Mode and Modification Of Reference Signalsmentioning

confidence: 99%

High performance decoupled active and reactive power control for three-phase grid-tied inverters using model predictive control

Azab

2021

Prot Control Mod Power Syst

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Finite control set-model predictive control (FCS-MPC) is employed in this paper to control the operation of a three-phase grid-connected string inverter based on a direct PQ control scheme. The main objective is to achieve high-performance decoupled control of the active and reactive powers injected to the grid from distributed energy resources (DER).The FCS-MPC scheme instantaneously searches for and applies the optimum inverter switching state that can achieve certain goals, such as minimum deviation between reference and actual power; so that both power components (P and Q) are well controlled to their reference values.In addition, an effective method to attenuate undesired cross coupling between the P and Q control loops, which occurs only during transient operation, is investigated. The proposed method is based on the variation of the weight factors of the terms of the FCS-MPC cost function, so a higher weight factor is assigned to the cost function term that is exposed to greater disturbance. Empirical formulae of optimum weight factors as functions of the reference active and reactive power signals are proposed and mathematically derived. The investigated FCS-MPC control scheme is incorporated with the LVRT function to support the grid voltage in fulfilling and accomplishing the up-to-date grid codes. The LVRT algorithm is based on a modification of the references of active and reactive powers as functions of the instantaneous grid voltage such that suitable values of P and Q are injected to the grid during voltage sag.The performance of the elaborated FCS-MPC PQ scheme is studied under various operating scenarios, including steady-state and transient conditions. Results demonstrate the validity and effectiveness of the proposed scheme with regard to the achievement of high-performance operation and quick response of grid-tied inverters during normal and fault modes.

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“…In order to reduce the problems associated with electrical quality when wind turbines are connected to the grid, transmission system operators have introduced many regulations that require wind turbines to comply with standards for voltage and frequency in the network and behavior under fault conditions [2][3]. In the event of a short circuit or voltage drop, the performance of a wind turbine should be verified to ensure that it meets the requirements specified by the regulations [4].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Dynamic Behavior of Double Feed Induction Generator and Permanent Magnet Synchronous Generator Wind Turbines in Failure Conditions

Çalik

Dabakoglu

Oğuz³

2021

IJRER

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The variable nature of the wind significantly affects the generation of electrical energy and integrating large power wind farms into the grid can cause electrical quality problems. The increase in the number of wind turbines connected to the grid is resulting in electricity quality problems including voltage instability and difficulties in reactive power and frequency control. This study investigates the resilience of two forms of wind turbine, the permanent magnet synchronous generator (PMSG) and double-feed induction generator (DFIG), to disturbances that may occur in the network, such as symmetrical and non-symmetric short circuit conditions, and voltage drops. Models of PMSG and DFIG wind turbines have been developed in the MATLAB-Simulink environment and simulated operating at nominal power level for the same network conditions and wind speed. The simulation was then used to investigate the dynamic response of the wind turbines in the case of phaseground, phase-phase-ground, and three-phase-ground short circuit failure, and voltage fluctuations, in order to determine which generator system has greatest benefit for electrical power quality. The DFIG wind turbine system was found to reach nominal active power faster than the PMSG wind turbine system. In addition, the frequency converter for the PMSG wind turbine system was more affected by failures in the power grid resulting in excessive DC bus voltages.

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A New Perspective of Wind Power Grid Codes Under Unbalanced and Distorted Grid Conditions

Cited by 8 publications

References 26 publications

Rooted Tree Optimization for the Backstepping Power Control of a Doubly Fed Induction Generator Wind Turbine: dSPACE Implementation

Rooted Tree Optimization for the Backstepping Power Control of a Doubly Fed Induction Generator Wind Turbine: dSPACE Implementation

High performance decoupled active and reactive power control for three-phase grid-tied inverters using model predictive control

Investigation of Dynamic Behavior of Double Feed Induction Generator and Permanent Magnet Synchronous Generator Wind Turbines in Failure Conditions

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