Performance of PMSG Based Variable Speed WECS with Parallel Back-to-Back Converters Using Separate Zero d-axis Current Control

Porate, Dhanashree K.; Gawande, S. P.; Porate, K. B.; Nagpure, R. N.; Waghmare, Manoj A.; Kadwane, Sumant G.

doi:10.1109/pedes.2018.8707805

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…During the boosting process, the output current of the generator can be regulated. The working current of the generator is linear with the working torque when using zero d-axis current control [31]. Here, it is assumed that the working current of the generator during the boosting process is regulated by the control circuit as follows:…”

Section: Control Strategy For Low-flow Stagementioning

confidence: 99%

Research on an All-Flow Velocity Control Strategy for a 120 kW Variable-Pitch Horizontal Axis Tidal Current Turbine

Wang

Zhang

et al. 2022

JMSE

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Horizontal-axis tidal current turbines have considerable potential to harvest renewable energy from ocean tides. The pitch control system is a critical part of variable-pitch tidal turbines. Existing control strategies for tidal turbines mainly rely on flow measurement devices to obtain tidal velocities, which are costly and subject to many limitations in practical applications, making them unsuitable for small off-grid tidal turbines. In this paper, we propose a pitch control strategy for a 120 kW horizontal-axis tidal current turbine based on the output power of the generator. The torque of the turbine was calculated based on the blade element momentum theory, and a dynamic model of the tidal turbine was established. The dynamic characteristics of the turbine and generator were studied under various flow rates and pitch angles. On the basis of the characteristic analysis, the generating efficiency of the unit was improved under a low flow rate, and the output power was limited to a rated value under high-current velocity by regulating the pitch angle. Furthermore, a novel protection and start up strategy is proposed to protect the unit and make full use of the tidal energy when the tidal current velocity exceeds the limit value. We performed simulations, the obtained results of which demonstrate the effectiveness and advantages of the designed control strategies.

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Section: Control Strategy For Low-flow Stagementioning

confidence: 99%

Research on an All-Flow Velocity Control Strategy for a 120 kW Variable-Pitch Horizontal Axis Tidal Current Turbine

Wang

Zhang

et al. 2022

JMSE

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“…Due to the benefit of the DC-link capacitor which decouples between both the MSC and GSC, and enables independent control of them, a 2-level back-to-back (2LBTB) converter is a dominant topology used in PMSG wind systems (Apata and Oyedokun, 2020; Porate et al, 2018; Yaramasu and Wu, 2017; Yaramasu et al, 2015, 2017), according to trends in converter topologies which represent the highest percentage figure (35.89%). For small-scale systems, the researchers have put a strong focus on a low-cost topology consisting of a diode-rectifier cascaded by a boost converter (Deng et al, 2020; Nannam et al, 2019).…”

Section: Trends In Technology and Research Status (Statistics Analysis)mentioning

confidence: 99%

Wind-driven permanent magnet synchronous generators connected to a power grid: Existing perspective and future aspects

et al. 2021

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Scholars are motivated to work in the field of renewable energy systems (RESs) especially on grid-connected wind generators because of the exciting and noticeable developments going on in this area. This progress is utilized to obtain the maximal, efficient, and stable electric power from the RESs and integrating it into existing systems to improve its efficiency, stability, reliability, and overall power quality. Recently, permanent magnet synchronous generators (PMSGs) have become the main pillar of advanced wind systems thanks to their fascinating pluses over other types of wind generators. This paper presents the up-to-date trends in converter topologies, control approaches, maximal power production methods, and grid integration issues for PMSG-based wind systems. The performed statistical analyses assure the dominance of the two-level back-to-back converter among the studied power converter topologies, field-oriented control method for the machine side converter, voltage oriented control method for the grid side converter control, perturb and observe algorithm amongst the studied maximum power point techniques, and fault ride-through capability out of grid integration issues. Further, recent general trends in technological advancements for PMSG wind system components are illustrated as a pie chart in terms of percentage figures. It is expected that the researchers working in this field would benefit from this article in terms of the presented state-of-the-art statistical analyses and its related literature given in this study.

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“…Compared to some synchronous machines, which use converters traversed by the entire rated power, DFIG's converters are sized to allow only 25% of the rated power to pass through [4]. They are therefore less cumbersome and less expensive [5,6].…”

Section: Introductionmentioning

confidence: 99%

Indirect power control of DFIG based on wind turbine operating in MPPT using backstepping approach

Dbaghi

Farhat

Mediouni

et al. 2021

IJECE

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This paper describes a MPPT control of the stator powers of a DFIG operating within a wind energy system using the backstepping control technique. The objective of this work consists of providing a robust control to the rotor-side converter allowing the stator active power to be regulated at the maximum power extracted from the wind turbine, as well as maintaining the stator reactive power at zero to maintain the power factor at unity, under various conditions. We have used the Matlab/Simulink platform to model the wind system based on a 7.5 kW DFIG and to implement the MPPT control algorithm in a first step, then we have implemented the field-oriented control and the backstepping controller in a second step. The simulation results obtained were very satisfactory with a fast transient response and neglected power ripples. They furthermore confirmed the high robustness of the approach used in dealing with the variation of the internal parameters of the machine.

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Performance of PMSG Based Variable Speed WECS with Parallel Back-to-Back Converters Using Separate Zero d-axis Current Control

Cited by 5 publications

References 10 publications

Research on an All-Flow Velocity Control Strategy for a 120 kW Variable-Pitch Horizontal Axis Tidal Current Turbine

Research on an All-Flow Velocity Control Strategy for a 120 kW Variable-Pitch Horizontal Axis Tidal Current Turbine

Wind-driven permanent magnet synchronous generators connected to a power grid: Existing perspective and future aspects

Indirect power control of DFIG based on wind turbine operating in MPPT using backstepping approach

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