Control strategy of PMSG based wind energy conversion system under strong wind conditions

Matayoshi, Hidehito; Howlader, Abdul Motin; Datta, Manoj; Senjyu, Tomonobu

doi:10.1016/j.esd.2018.07.001

Cited by 56 publications

(15 citation statements)

References 22 publications

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“…The proposed MPS is compared with the conventional PI controller. Table 1 lists the WTG simulation parameters [5]. In the simulated scenario, the constraints of the proposed MPC controller are imposed on the control pitch angle.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…The power coefficient is a nonlinear function of the blade pitch angle and the blade tip speed ratio (TSR). The following equation is used to approximate C in the full load region [5]:…”

Section: Wtg Modellingmentioning

confidence: 99%

“…This control method is termed as maximum power point tracking (MPPT) [4]. When the wind speed exceeds the rated value the pitch angle control is activated to maintain the generated output power constant at its rated value [5].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A New Pitch Angle Control Method of Wind Turbine Generators Based on Feedforward Wind Speed Information

Sahib

Nayl

2019

E3S Web Conf.

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In this work, a new strategy to control the pitch angle of wind turbine generator is proposed. The strategy is based on designing an intelligent control system capable of maintaining a stable minimum fluctuating power generation. This can be achieved by providing the wind speed information to the controller in advance and hence allowing the controller to take the optimum action in controlling the blade pitch angle. A model based optimizer uses Model Predictive Control (MPC) technique to predict the wind turbine generator future behaviour and select the optimal control actions assisted by the wind speed information while satisfying the power generation constraints. The simulation results show that a significant improvement can be made using the proposed control method.

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Section: Simulation Resultsmentioning

confidence: 99%

“…The power coefficient is a nonlinear function of the blade pitch angle and the blade tip speed ratio (TSR). The following equation is used to approximate C in the full load region [5]:…”

Section: Wtg Modellingmentioning

confidence: 99%

See 1 more Smart Citation

A New Pitch Angle Control Method of Wind Turbine Generators Based on Feedforward Wind Speed Information

Sahib

Nayl

2019

E3S Web Conf.

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“…By keeping dc link voltages ( V dcx1 and V dcx2 ) constant at their reference values, the amplitude of “ V acx ” can be controlled at the required grid voltage . Wind turbines (WT) extracted the wind kinetic energy and gives the mechanical power output ( P w ) that is calculated by using Betz theory and expressed as follows:

P_{w} = \frac{1}{2} C_{P} ((),, λ_{w}, β) ρ {Av}_{w}^{3}

where “ ρ ” is the air density in kg/m 3 , “ v w ” is the wind velocity in m/s, “ A ” is the area swept by the turbine blades, and “ C P ( λ , β )” is the turbine power coefficient, which is a function of “ λ w ” tip speed ratio and “ β ” blade pitch angle and given as in Equation .

C_{P} ((),, λ_{w}, β) = c_{1} ((), c_{2} \frac{1}{λ_{i}} - c_{3} β - c_{4} β^{c 5} - c_{6}) exp ((), - c_{7} \frac{1}{λ_{i}})

where, “ c 1 to c 7 ” are the WT constant coefficients.…”

Section: Proposed Wecs Descriptionmentioning

confidence: 99%

Capacitor voltage balancing in cascaded H‐bridge multilevel inverter and its modelling analysis for grid integrated wind energy conversion system application

Sharma

Dahiya

Nakka

2019

Circuit Theory & Apps

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windmills may operate at variable speeds. 5 Because of variable speed operation and better performance, the doubly fed induction generator (DFIG) has been conventionally used in WECSs. However, permanent magnet synchronous generator (PMSG) has gained broad attention in wind energy applications due to its high efficiency operation, extended speed operating range, self-excitation capability, and leading to a high power factor. For obtaining high efficiency in WECS, it is essential to manage WT such that they can produce maximum power. MPPT algorithm is required for maximal power extraction from the wind energy sources (WES). 1,[6][7][8][9] The output of wind turbine generator (WTG) coupling are inherently unstable dc voltage. The unstable output of WTG contribute to the power quality and stability issues like voltage variations, harmonic generation, and flickers in the grid network. Unwanted harmonics are produced due to the presence of power converters. In addition, due to the varying wind speed, flicker or voltage variation occurs in output power supply. Thus, for the grid integration of WECS, the need of advanced power electronic converters (rectifier, boost converters, and inverters) under transient and steady-state operating condition configuration and their proficient control are necessary to standardize the converter output voltage, even under changing environmental conditions. 3,10 Nowadays, in this type of applications, the multilevel inverters are mostly used in comparison to elementary two-level inverters due to several advantages. [11][12][13][14] Among all standard MLI topologies, "cascaded H-bridge inverter (CHBI)" is primarily used for grid-integrated WECS applications owing to its simpler layout, modular design, reduced number of components as compared with other classical MLI topologies and the use of low voltage rated switches for achieving high or medium power level. [14][15][16][17][18][19] In proposed WECS, WTG coupled systems are connected to two individual H-bridges per phase of CHBMLI through isolated dc link along with respective independent boost converter-based maximum power point tracking (MPPT) system. In addition, by cascading these two H-bridges, the desired five-level output phase voltage is obtained.The major advantage of adopted CHBMLI topology possessing the isolated dc links plays the prominent role to legitimate in connecting two WECS with unequivocal power generation because of deviation of the wind speeds among the windmills at any point of time. In addition, this MLI support to adjoin two medium voltage WECS to feed the total power generated into the high voltage grid without any transformers, but at the same time, the system achieves the better synchronization along with calibrated and controlled power flow. It is an important note to consider that either the CHB topology used as an inverter or a rectifier the mandate of possessing equal dc link voltages is essential to justify identical permissible voltage stress among all switching devices in multilevel topologies at high ...

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“…The continuous increase of the world population and technological developments constantly boosts the energy demand of countries. The energy generation with conventional fuels raises serious concerns, such as lack of resources and global warming [1], [2]. However, the share of renewable energy sources in energy generation has been growing particularly in the last 10 years.…”

Section: Introductionmentioning

confidence: 99%

Second-Order Fast Terminal Sliding Mode Control for MPPT of PMSG-based Wind Energy Conversion System

Dursun

Kulaksız

2020

ELEKTRON ELEKTROTECH

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This article proposes a new maximum power point tracking (MPPT) controller based on voltage-mode Second-Order Fast Terminal Sliding Mode Control (SO-FTSMC) to obtain better performance in the power extraction from Permanent Magnet Synchronous Generator (PMSG)-based Wind Energy Conversion System (WECS). The major objective of the study is the design of SO-FTSMC that can ensure the operation of the system in maximum power reference with higher efficiency, less steady-state error, and voltage fluctuation. Maximum power references are determined by mechanical sensorless MPPT approach. The small-scale WECS configuration incorporates wind turbine, PMSG, uncontrolled rectifier, boost converter, and MPPT controller. SO-FTSMC method has not been performed before as a voltage regulator in such a topology. The proposed controller has been validated for two different wind speed test scenarios in simulation environment, which can be applied effectively to PMSG-based WECS. Moreover, Conventional SMC (C-SMC) is created and then performance of controllers is compared in these wind speed scenarios according to maximum extracted average power, output voltage fluctuation, and voltage error in steady-state, MPPT efficiency, and performance indices. Obtained results indicate that proposed SO-FTSMC-based MPPT controller achieves superior performance.

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Control strategy of PMSG based wind energy conversion system under strong wind conditions

Cited by 56 publications

References 22 publications

A New Pitch Angle Control Method of Wind Turbine Generators Based on Feedforward Wind Speed Information

A New Pitch Angle Control Method of Wind Turbine Generators Based on Feedforward Wind Speed Information

Capacitor voltage balancing in cascaded H‐bridge multilevel inverter and its modelling analysis for grid integrated wind energy conversion system application

Second-Order Fast Terminal Sliding Mode Control for MPPT of PMSG-based Wind Energy Conversion System

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