Efficient operation of AC voltage controller fed induction machine for wave power generation

Naikodi, A.L.; Rao, G. Sridhara

doi:10.1109/pedes.1996.539551

Cited by 7 publications

(3 citation statements)

References 6 publications

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“…The worldwide wave power potential is approximately 2.5 TW. One percent to five percent of the annual total worldwide electricity demand could be easily supplied by wave energy [2][3][4]. That is why we focus on the tidal current turbine technology in this paper, particularly on the sizing of the electrical generator.…”

Section: Introductionmentioning

confidence: 99%

Design Optimization of a Direct-Drive Electrically Excited Synchronous Generator for Tidal Wave Energy

et al. 2022

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In the field of marine renewable energies, the extraction of marine currents by the use of tidal current turbines has led to many studies. In contrast to offshore wind turbines, the mass minimization is not necessarily the most important criterion. In that case, Direct-Drive Electrically Excited Synchronous Generators (EESG) can be an interesting solution in a context where the permanent magnet market is more and more stressed. In the particular case of a tidal turbine, the electric generator operates at variable torque and speed all the time. Its sizing must therefore take into account the control strategy and check that all the constraints are respected during the working cycle, particularly the thermal one because its permanent regime is never reached. There is no solution today that can completely solve such a sizing problem. The paper presents a specific solution. In particular, we will see that the method presented allows an avoidance of an oversizing of the generator compared to conventional methods while finding the optimal control strategy. Thus, the design optimization of an EESG is conducted considering the variable torque and speed profiles related to marine currents. The analytical model used in the paper is presented at first. In a second step, the innovative and original method that allows solving at the same time the design optimization and the control strategy (dq stator currents and rotor current) are presented. It shows how it is possible to minimize both the lost energy during the working cycle and the mass while fulfilling all the constraints (especially the thermal constraint with its transient temperature response) and keeping a reduced computation time. The case of a 2 MW tidal wave turbine is chosen to illustrate this study. Finally, the optimal design selected is validated by a 2D magnetic Finite Element Analysis (FEA).

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Section: Introductionmentioning

confidence: 99%

Design Optimization of a Direct-Drive Electrically Excited Synchronous Generator for Tidal Wave Energy

et al. 2022

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“…The world wide wave power potential is assumed about 2.5TW and approximately 1% to 5% of the annual worldwide electricity demand can be supplied by the wave energy [2,3]. Since the wave energy has abundance, green features and also wave power intensity is about five and ten times bigger than the wind and solar energy intensities, respectively that make it attractive and practical alternative energy source [4].…”

Section: Introductionmentioning

confidence: 99%

A novel fuzzy logic tansigmoid controller for Wave Energy Converter-grid interface DC energy utilization farm

Ozkop

Altaş

Sharaf

2009

2009 Canadian Conference on Electrical and Computer Engineering

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The paper presents a digital simulation and validation study of a novel control system for control of a Wave Energy Converter (WEC)-Battery renewable energy system for DC type loads. The performance and dynamic characteristics of the controllers to any load nonlinear J, B parameters and load torque is examined for PMDC Motor Drives. The proposed dynamic error driven control system is digitally simulated using the MATLAB/Simulink/SimPowerSystems software. The dynamic performance of the unified green energy Wave Energy-DC utilization system is examined for the proposed controller. IndexTermsRenewable energy, wave energy/battery system, modeling, control system

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“…Many studies dealt with renewable green energy sources, efficient utilization and renewable green energy technologies for sustainability. The world wide wave power potential is assumed about 2.5TW and approximately 1% to 5% of the annual total worldwide electricity demand can be easily supplied by the wave energy alone [2,3]. Since the wave energy has both abundance and green features with wave power potential about five to ten times bigger than the wind and solar energy sources, it is attractive and viable alternative energy source [4][5].…”

Section: Introductionmentioning

confidence: 99%

Optimal self regulating stand-alone wave energy conversion scheme

Sharaf

El-Gammal

2009

2009 IEEE Electrical Power &Amp; Energy Conference (EPEC)

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The paper presents a novel AC and DC stabilization scheme system for a Wave Energy Converter (WEC) using Permanent Magnet Linear Generator PMLG connected to a six pulse diode rectifier. The proposed dynamic controller of the WEC-Battery renewable energy system is based on Particle Swarm Optimization PSO technique. The optimization search algorithm is implemented to control a novel low cost dynamic AC side dynamic filter/capacitor compensation green plug filter and PMDC speed controller scheme. The Dynamic Modulated Filter Capacitor Compensation scheme (MPFC) serves as an AC side voltage stabilization regulator for wave energy utilization enhancement. The objective is to extract available power from the wave energy system (WES) and transfer this power efficiency to the local isolated stabilized DC side electric load while dynamically controlling the speed of the PMDC motors.

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Efficient operation of AC voltage controller fed induction machine for wave power generation

Cited by 7 publications

References 6 publications

Design Optimization of a Direct-Drive Electrically Excited Synchronous Generator for Tidal Wave Energy

Design Optimization of a Direct-Drive Electrically Excited Synchronous Generator for Tidal Wave Energy

A novel fuzzy logic tansigmoid controller for Wave Energy Converter-grid interface DC energy utilization farm

Optimal self regulating stand-alone wave energy conversion scheme

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