MPPT Control of PMSG Based Small-Scale Wind Energy Conversion System Connected to DC-Bus
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Emre Hasan Dursun
und
Ahmet Afsin Kulaksiz
Abstract
While the use of renewable energy systems in electric power generation is increasing more and more, wind energy conversion systems (WECS) receive considerable attention among these. Thanks to the ability of power generation in all wind speed range by controlling the rotor speed, Variable Speed WECSs are more preferred than fixed speed WECSs. When considering small-scale applications in variable speed WECS, Permanent Magnet Synchronous Generator (PMSG) based WECS structures are focus of the interest due to their advantages such as high efficiency and low maintenance costs. The generator must be operated at an optimum speed to obtain maximum power from the WECS. Moreover, different Maximum Power Point Tracking (MPPT) methods can be used to control and determine optimal operating speed. In this paper, WECS configuration consists of PMSG, uncontrolled rectifier, DC link capacitor, DC-DC boost converter and DC-Bus. Capturing the maximum power from WECS and supplying the DC-Bus is performed via tip speed ratio and PI control (TSR-PI) based MPPT method. Moreover, two wind speed profiles having constant and instant changes are created to test the performance of the proposed method. For comparison purposes, perturbation & observation (P&O) based MPPT method is also carried out in here. According to obtained results from this study performed in Matlab/Simulink environment, it is verified that TSR-PI based MPPT method ensures higher power and efficiency for these wind speed profiles by means of a more successful generator speed tracking.
Acknowledgements
This work is supported by the Coordinatorship of Konya Technical University’s Scientific Research Projects, OYP-Academic Training Program and also, The Scientific and Technological Research Council of Turkey (TUBITAK) BIDEB-2211/C.
Nomenclature
- CS-WECS
Constant Speed WECS.
- DFIG
Doubly-Fed Induction Generator.
- HCS
Hill Climbing Search.
- MPP
Maximum Power Point.
- MPPT
Maximum Power Point Tracking.
- M-HCS
Modified Hill-Climbing Search.
- PI
Proportional and Integrator.
- PMSG
Permanent Magnet Synchronous Generator.
- P&O
Perturb & Observation.
- POR
Perturb & Observation Regulator.
- PSF
Power Signal Feedback.
- SCIG
Squirrel Cage Induction Generator.
- TSR
Tip Speed Ratio.
- VS-WECS
Variable Speed WECS.
- WECS
Wind energy conversion systems.
- WRIG
Wound Rotor Induction Generator.
- WT
Wind Turbine.
- ρ
Air density.
- A
Swept area by turbine blades.
- CP
Power coefficient.
- vw
Wind speed.
- λ
Tip speed ratio
- β
Blade angle.
- R
Blade radius.
- ωr
Rotational speed.
- Pmax
Maximum power.
- C1 - C6
Parametric coefficients of wind turbine.
- d,q
Direct and quadratic axis.
- Vd, Vq,
d, q axis stator voltages.
- id, iq
d, q axis stator currents.
- Rs, Ls
Stator resistance and inductance.
- λm
Permanent magnet leakage flux.
- p
Number of pole pair.
- ωe
Reference frame speed.
- Vin, Vo
Input-output voltages.
- IL, IC
Inductor and capacitor currents.
- L, C
Inductor and capacitor.
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Artikel in diesem Heft
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- Research Articles
- Network Reconfiguration of Radial Active Distribution Systems in Uncertain Environment Using Super Sense Genetic Algorithm
- MPPT Control of PMSG Based Small-Scale Wind Energy Conversion System Connected to DC-Bus
- Research on Power Generation Control of Asynchronous Machine as Main Generator
- Optimized Dynamic Operation of Fixed-Speed Wind Farms Using Classical and Advanced Controllers
- Determination of efficiency of a five-level multilevel topology utilizing a single bidirectional-blocking-bidirectional-conducting switch
- Power quality (PQ) analysis in a power feeder that supply different social class consumers
- A new method to generate daily load scenario of electric vehicle charging station considering time correlation
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Artikel in diesem Heft
- Review
- Comparison Between Linear and Nonlinear Governor Power Flow Formulations
- Research Articles
- Network Reconfiguration of Radial Active Distribution Systems in Uncertain Environment Using Super Sense Genetic Algorithm
- MPPT Control of PMSG Based Small-Scale Wind Energy Conversion System Connected to DC-Bus
- Research on Power Generation Control of Asynchronous Machine as Main Generator
- Optimized Dynamic Operation of Fixed-Speed Wind Farms Using Classical and Advanced Controllers
- Determination of efficiency of a five-level multilevel topology utilizing a single bidirectional-blocking-bidirectional-conducting switch
- Power quality (PQ) analysis in a power feeder that supply different social class consumers
- A new method to generate daily load scenario of electric vehicle charging station considering time correlation
- Stochastic electrical energy management of industrial Virtual Power Plant considering time-based and incentive-based Demand Response programs option in contingency condition
- Performance analysis of an open-core type three-phase saturated iron-core superconducting fault current limiter
