Performance Analysis of an Electromagnetic Frequency Regulator under Parametric Variations for Wind System Applications

Nascimento, Thiago F. do; Nunes, Evandro Ailson de Freitas; Villarreal, Elmer Rolando Llanos; Pinheiro, Ricardo Ferreira; Salazar, Andrés O.

doi:10.3390/en15082873

Cited by 3 publications

(3 citation statements)

References 19 publications

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“…Thus, the rotor is responsible for maintaining the voltage and frequency stability of the power supplied to the resistive load. More information about EFR features are found in [9,10,15].…”

Section: Speed Conversionmentioning

confidence: 99%

“…However, the controller's performance was not evaluated for parametric variation of the system. Thus, a system dynamic analysis considering variations in the EFR's parameters was proposed in [15]. The analysis based on transient and steady-state response specifications showed the varying influence of the EFR device parameters on its dynamic behavior.…”

Section: Introductionmentioning

confidence: 99%

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Fuzzy Control Strategy Applied to an Electromagnetic Frequency Regulator in Wind Generation Systems

et al. 2022

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This paper presents the implementation of a fuzzy control strategy for speed regulation of an electromagnetic frequency regulator (EFR) prototype, aiming to eliminate the dependence on knowledge of physical parameters in the most diverse operating conditions. Speed multiplication is one of the most important steps in wind power generation. Gearboxes are generally used for this purpose. However, they have a reduced lifespan and a high failure rate, and are still noise sources. The search for new ways to match the speed (and torque) between the turbine and the generator is an important research area to increase the energy, financial, and environmental efficiency of wind systems. The EFR device is an example of an alternative technology that this team of researchers has proposed. It considers the main advantages of an induction machine with the rotor in a squirrel cage positively. In the first studies, the EFR control strategy consisted of the conventional PID controllers, which have several limitations that are widely discussed in the literature. This strategy also limits the EFR’s performance, considering its entire operating range. The simulation program was developed using the Matlab/Simulink platform, while the experimental results were obtained in the laboratory emulating the EFR-based system. The EFR prototype has 2 poles, a nominal power of 2.2 kW, and a nominal frequency of 60 Hz. Experimental results were presented to validate the efficiency of the proposed control strategy.

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“…Thus, the rotor is responsible for maintaining the voltage and frequency stability of the power supplied to the resistive load. More information about EFR features are found in [9,10,15].…”

Section: Speed Conversionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fuzzy Control Strategy Applied to an Electromagnetic Frequency Regulator in Wind Generation Systems

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, the controllers performance was not evaluated for parametric variation of the system. Thus, a dynamic analysis of the system considering variations in the EFR's parameters was proposed in [15]. The analysis based on transient and steady-state response specifications showed the varying influence of the EFR device parameters on its dynamic behavior.…”

Section: Introductionmentioning

confidence: 99%

Fuzzy Artificial Intelligence Based Control Strategy Applied to an Electromagnetic Frequency Regulator in Wind Generation Systems

Crisóstomo¹,

Nascimento²,

Nunes³

et al. 2022

Preprint

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This paper presents the implementation of a control strategy based on fuzzy logic artificial intelligence (AI) for speed regulation of an electromagnetic frequency regulator (EFR) prototype, aiming to eliminate the dependence on knowledge of physical parameters in the most diverse operating conditions. Speed multiplication is one of the most important steps in power generation wind. Gearboxes are generally used for this purpose. However, they have a reduced lifespan and a high failure rate and are still noise sources. The search for new ways to match the speed (and torque) between the turbine and the generator is an important research area to increase the energy, financial and environmental efficiency of wind systems. The EFR device is an example of an alternative technology that this team of researchers has proposed. It counts the fact of taking advantage of the main advantages of an induction machine with the rotor in a squirrel cage positively. In the first studies, the EFR control strategy consisted of the conventional PID controllers, which has several limitations widely discussed in the literature. This strategy also limits the EFR's performance, considering its entire operating range. The simulation program was developed using the Matlab/Simulink platform, while the experimental results were obtained in the laboratory emulating the EFR-based system. The EFR prototype used has 2 poles, a nominal power of 2.2 kW, and a nominal frequency of 60 Hz. Experimental results were presented to validate the efficiency of the proposed control strategy.

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Implementation and Validation for Multitasks of a Cost-Effective Scheme Based on ESS and Braking Resistors in PMSG Wind Turbine Systems

et al. 2022

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This study deals with fault ride-through (FRT) capability and output power fluctuation suppression of wind turbine systems (WTS) having PMSG (permanent-magnet synchronous generator) for mitigating grid frequency variation and voltage flicker in the distribution system. The coordinated control of a cost-effective scheme based on energy storage supercapacitors (ESSs) and braking resistors (BR) is introduced to perform the multiple tasks of the WTS. In this hybrid scheme, the ESSs are initially used to absorb the fluctuated power component with the constraints of their ratings during the grid faults and wind speed variation conditions prior to the activation of the BRs when the ESSs cannot fully consume the mismatched power between the PMSG and grid during severe grid faults. With the additional BRs, the capacity of the costly ESSs is remarkably reduced, while the performance of the fault ride-through capability and power smoothening for the WTS are still kept satisfactory and in compliance with the requirements of advanced grid codes. Detailed experimental implementation and its results for a down-scaled prototype in a laboratory are shown to verify the effectiveness of the introduced scheme along with the simulation results with the high-power rating WTS.

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Performance Analysis of an Electromagnetic Frequency Regulator under Parametric Variations for Wind System Applications

Cited by 3 publications

References 19 publications

Fuzzy Control Strategy Applied to an Electromagnetic Frequency Regulator in Wind Generation Systems

Fuzzy Control Strategy Applied to an Electromagnetic Frequency Regulator in Wind Generation Systems

Fuzzy Artificial Intelligence Based Control Strategy Applied to an Electromagnetic Frequency Regulator in Wind Generation Systems

Implementation and Validation for Multitasks of a Cost-Effective Scheme Based on ESS and Braking Resistors in PMSG Wind Turbine Systems

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