An Improved Control Strategy for DVR in order to Achieve both LVRT and HVRT in DFIG Wind Turbine

Liasi, Sahand Ghaseminejad; Afshar, Zakaria; Harandi, Mahdi Jafari; Kojori, Shokrollah Shokri

doi:10.1109/icepe.2018.8559605

Cited by 15 publications

(4 citation statements)

References 14 publications

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“…These methods either use external devices such as energy storage systems as in [29], [30] or use improved control techniques. In [31], a fuzzy controller is utilized to assist in the case of grid faults via reactive current injection, as required by the standard. In [32], a control strategy has been proposed for a utility-connected PMSG to reduce the transient event oscillations.…”

Section: Volume 4 2016mentioning

confidence: 99%

Sliding Mode Control for Grid Integration of Wind Power System Based on Direct Drive PMSG

Osman

Alsokhiry

2022

IEEE Access

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Wind energy is predicted to account for a higher share of the world's total power generation in the future. However, as wind power becomes more prevalent in the grid, it poses new challenges in terms of grid reliability and stability. This opens up new possibilities for the development of control methods capable of supporting the grid during voltage disruptions as well as enhancing power quality issues. This paper proposes a sliding mode control scheme for a direct-drive PMSG based wind energy conversion system. Nonlinear Sliding Mode Control (SMC) has the merit of robustness and good disturbance rejection capability, making it effective in responding to grid disturbances. The SMC chattering effect, on the other hand, increases the overall harmonic distortion injected into the grid. In this paper, the demerit of SMC has been minimized with the proper selection of SMC reaching law and the inclusion of an LCL filter and its dynamics in the design of the SMC control law. Moreover, MATLAB/Simulink simulation results have shown that the proposed control strategy has a better performance than the optimally tuned proportionalintegral control during grid voltage disturbances.INDEX TERMS Grid-side converter control, machine-side converter control, permanent magnet synchronous generator, sliding mode control, wind energy.

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Section: Volume 4 2016mentioning

confidence: 99%

Sliding Mode Control for Grid Integration of Wind Power System Based on Direct Drive PMSG

Osman

Alsokhiry

2022

IEEE Access

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“…DVR: It has the ability to maintain voltage of the load side within certain range even while there is disturbance in voltage of the source. DVR uses the concept of "Dynamic voltage restoration" for overcoming voltage surges that occur in electrical networks [25]. In order to govern the real power as well as the reactive power of the distribution system, the parameters of the injected voltage can be varied by using DVR [26].…”

Section: Facts Devicesmentioning

confidence: 99%

“…GUPFC [18], [19], [20] Ability to damp power system oscillations; control voltage; control active and reactive power flow of multiple transmission lines; reduce harmonic distortion IPC [1], [21] Control power flow; mitigate fault current IPFC [22], [23], [24] Balance power between transmission systems; monitor real and reactive power flow; minimize power losses and generation cost; maximize loadability of system; transfer power from more loaded lines to less loaded or unloaded lines DVR [25], [26], [27] Ability to generate or absorb controllable real and reactive power; mitigate voltage swells and distortions SVC [28], [29], [30], [31] Can absorb or generate reactive power dynamically; power factor correction; dynamic and static security enhancement; voltage regulation; harmonics mitigation SSSC [32], [33], [34] Ability to change reactance character from capacitive to inductive without changing line current; can alternate the power flow VSC [1], [46] Ability to generate AC voltages without relying on AC system; rapid control of active and reactive power UPFC [35], [36], [37], [47] Deploy active and reactive power control; improve system voltage stability; power angle stability and Damping system harmonics TCPAR [38], [39] Ability to mitigate congestion issues; adjust power flow; reduce transmission losses STATCOM [40], [41], [42] Supply inductive and capacitive reactive power; improve power factor; voltage regulation; dampen system oscillation; improve harmonic filtration TCSC [43], [44], [45] Elimination of sub-synchronous resonance; damping active power oscillations; provide inductive or capacitive compensation; loss reduction; congestion relief Optimization of FACTS devices: classification, recent trends, and future outlook VI....…”

Section: Facts Device Reference Featuresmentioning

confidence: 99%

Optimization of FACTS Devices: Classification, Recent Trends, and Future Outlook

Mirsaeidi

Devkota

Tzelepis

et al. 2021

2021 IEEE 4th International Electrical and Energy Conference (CIEEC)

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Since the inception of industrialization, power system has been an indispensable aspect of economy. With the progression of time, technology has impalpably commingled into our lifestyle. Alongside blooming technologies, energy demand is proliferating and power companies are begetting energy at their best to quench it. Growing reliance on power system has brought its quality into more advertence. Various electronic devices and topologies have been invented to enhance power quality and reliability; numerous others are still underway. During the course, power system has grown to an intricate network of sources, loads and control devices, leading to various issues such as transmission congestion and high losses. This paper discusses ways to ameliorate congestion and gives an overview of relationship between our present energy resources and ecological threats like global warming. Moreover, it points out various power system problems such as energy losses and transients. The necessity of FACTS devices has also been elaborated alongside their classification and comparison. Finally, numerous topologies and optimization methods proposed in the technical literature have been classified and analyzed to alleviate power system conundrums, and a glimpse into future energy trends is presented.

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“…The LVRT grid codes can be met using an extensive variety of devices. To increase LVRT capability, series devices such as the dynamic voltage restorer (DVR), the thyristorcontrolled voltage regulator (TCVR) in a position to inject series voltage, and super-conducting fault-current limiters (SFCL) have the intended results [7,8]. Additionally, it is not cost-effective to increase this capacity using a shunt device similar the static synchronous compensator (STATCOM) [9].…”

Section: Introductionmentioning

confidence: 99%

Improvement of Fault Ride-Through Capability of Grid Connected Wind Turbine Based on a Switched Reluctance Generator Using a Dynamic Voltage Restorer

Abouelatta

2023

Sustainability

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This paper presents an improvement to the fault ride-through (FRT) capabilities for a wind turbine that employs a switched reluctance generator (SRG) using a dynamic voltage restorer (DVR). The wind turbine may be disconnected from the grid by voltage sag, swell, and faulty line voltage in the grid. To improve the stator voltage of an SRG during grid failures, the DVR is applied to inject voltage at the point of common coupling (PCC) into the grid voltage. A control strategy for the DVR based on fuzzy logic controller (FLC) is proposed in this study to improve the FRT capability and meet the grid codes while avoiding the disconnection of the turbine from the grid. MATLAB/SIMULINK simulation validated the effectiveness and performance of this approach under three test cases: balanced sag, unbalanced sag, and a single line-to-ground fault. In addition, the total harmonic distortions utilizing different controllers were compared in sag mode. Furthermore, the simulation results exhibited significant improvement in transient and steady-state response, thus verifying the effectiveness of the control strategy compared to traditional methods.

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An Improved Control Strategy for DVR in order to Achieve both LVRT and HVRT in DFIG Wind Turbine

Cited by 15 publications

References 14 publications

Sliding Mode Control for Grid Integration of Wind Power System Based on Direct Drive PMSG

Sliding Mode Control for Grid Integration of Wind Power System Based on Direct Drive PMSG

Optimization of FACTS Devices: Classification, Recent Trends, and Future Outlook

Improvement of Fault Ride-Through Capability of Grid Connected Wind Turbine Based on a Switched Reluctance Generator Using a Dynamic Voltage Restorer

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