Experimental verification of variable speed wind power generation system using permanent magnet synchronous generator by boost converter circuit

Tammaruckwattana, Sirichai; Ohyama, Kazuhiro

doi:10.1109/iecon.2013.6700322

Cited by 6 publications

(4 citation statements)

References 4 publications

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“…Magnetic materials are of key importance in a large variety of scientific and technological applications such as data storage, 1,2 biomedicine, 3,4 and electric motors. 5 Since the discovery of high performance rare-earth magnets, conventional ferrite magnets have attracted less attention. However, recent geopolitical circumstances have sparked the need for new and cheaper magnetic materials with reduced content or even free of rare-earth elements.…”

Section: Introductionmentioning

confidence: 99%

Improved performance of SrFe₁₂O₁₉bulk magnets through bottom-up nanostructuring

et al. 2016

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The influence of synthesis and compaction parameters is investigated with regards to formation of high performance SrFe12O19 bulk magnets. The produced magnets consist of highly aligned, single-magnetic domain nanoplatelets of SrFe12O19. The relationship between the magnetic performance of the samples and their structural features is established through systematic characterization by Vibrating Sample Magnetometry (VSM) and Rietveld refinement of powder X-ray diffraction data (PXRD). The analysis is supported by complementary techniques including Transmission Electron Microscopy (TEM), Atomic Force Microscopy (AFM) and X-ray pole figure measurements. SrFe12O19 hexagonal nanoplatelets with various sizes are synthesized by a supercritical hydrothermal flow method. The crystallite sizes are tuned by varying the Fe/Sr ratio in the precursor solution. Compaction of SrFe12O19 nanoplatelets into bulk magnets is performed by Spark Plasma Sintering (SPS). Rietveld refinement of the pressed pellets and texture analysis of pole figure measurements reveal that SPS pressing produces a high degree of alignment of the nanoplatelets, achieved without applying any magnetic field prior or during compaction. The highly aligned nanocrystallites combined with crystal growth during SPS give rise to an enormous enhancement of the magnetic properties compared to the as-synthesized powders, leading to high performance bulk magnets with energy products of 26 kJ m(-3).

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Section: Introductionmentioning

confidence: 99%

Improved performance of SrFe₁₂O₁₉bulk magnets through bottom-up nanostructuring

et al. 2016

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“…DC-DC converters are widely used in a number of applications, such as power factor correction [33], fuel cell [34] applications, maximum power point tracking of solar and wind energy systems [35], [36]. Figure 2 shows schematic of DC/DC boost converter.…”

Section: Boost Converter Design and Thermal Analysismentioning

confidence: 99%

Towards More Reliable Renewable Power Systems - Thermal Performance Evaluation of DC/DC Boost Converters Switching Devices

Batunlu

Albarbar

2015

IJPEDS

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<span style="font-family: "Times New Roman",serif; font-size: 10pt; mso-fareast-language: EN-US; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA;">Power electronic converters (PECs) are one of the most important elements within renewable power generation systems. The reliability of switching elements of PECs is still below expectations and is a major contributor to the downtime of renewable power generation systems. Conventional technology based elements such as Silicon Insulated Gate Bipolar Transistors (IGBTs) operate as switching components in PECs. Recent topological improvements have led to new devices called Silicon Carbide (SiC) MOSFETs which, are also being used as switching elements for PECs. This paper presents detailed investigations into the performance of those switching devices with a focus on their reliability and thermal characteristics. Namely, trench gate NPT, FS IGBT topologies and SiC MOSFET are firstly modelled using 3-D multi-physics finite element modelling to gain clear understanding of their thermal behaviour. Subsequently, modelling outcomes are verified by using those devices as switching elements in operational boost converters. The purposely-developed test setups are utilised to critically assess the performances of those switching devices under different loading and environmental conditions. In general, <span style="font-family: "Times New Roman",serif; font-size: 10pt; mso-fareast-language: EN-GB; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-GB; mso-bidi-language: AR-SA;">SiC device was found to exhibit about 20 °C less in its operating temperature and therefore expected to offer more reliable switching element.

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“…The differences must be compensated because wind velocity, V 0 , always changes. The difference can be compensated by the following equation: [9], [10] Fig . 7 shows the duty ratio control system for BCC.…”

Section: B Mechanical Modelmentioning

confidence: 99%

“…The wind turbine torque is regulated by the pitch angle control system as follows: (10) When the pitch angle control is activated, the DC link voltage reference is calculated by the following equation of PI power controller:…”

Section: E Inverter Control System For the Bcc Schemementioning

confidence: 99%

Experimental Assessment with Wind Turbine Emulator of Variable-Speed Wind Power Generation System using Boost Chopper Circuit of Permanent Magnet Synchronous Generator

Tammaruckwattana¹,

Ohyama²,

Yue³

2015

Journal of Power Electronics

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This paper presents experimental results and its assessment of a variable-speed wind power generation system (VSWPGS) using permanent magnet synchronous generator (PMSG) and boost chopper circuit (BCC). Experimental results are obtained by a test bench with a wind turbine emulator (WTE). WTE reproduces the behaviors of a windmill by using servo motor drives. The mechanical torque references to drive the servo motor are calculated from the windmill wing profile, wind velocity, and windmill rotational speed. VSWPGS using PMSG and BCC has three speed control modes for the level of wind velocity to control the rotational speed of the wind turbine. The control mode for low wind velocity regulates an armature current of generator with BCC. The control mode for middle wind velocity regulates a DC link voltage with a vector-controlled inverter. The control mode for high wind velocity regulates a pitch angle of the wind turbine with a pitch angle control system. The hybrid of three control modes extends the variable-speed range. BCC simplifies the maintenance of VSWPGS while improving reliability. In addition, VSWPGS using PMSG and BCC saves cost compared with VSWPGS using a PWM converter.

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Experimental verification of variable speed wind power generation system using permanent magnet synchronous generator by boost converter circuit

Cited by 6 publications

References 4 publications

Improved performance of SrFe₁₂O₁₉bulk magnets through bottom-up nanostructuring

Improved performance of SrFe₁₂O₁₉bulk magnets through bottom-up nanostructuring

Towards More Reliable Renewable Power Systems - Thermal Performance Evaluation of DC/DC Boost Converters Switching Devices

Experimental Assessment with Wind Turbine Emulator of Variable-Speed Wind Power Generation System using Boost Chopper Circuit of Permanent Magnet Synchronous Generator

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Experimental verification of variable speed wind power generation system using permanent magnet synchronous generator by boost converter circuit

Cited by 6 publications

References 4 publications

Improved performance of SrFe12O19bulk magnets through bottom-up nanostructuring

Improved performance of SrFe12O19bulk magnets through bottom-up nanostructuring

Towards More Reliable Renewable Power Systems - Thermal Performance Evaluation of DC/DC Boost Converters Switching Devices

Experimental Assessment with Wind Turbine Emulator of Variable-Speed Wind Power Generation System using Boost Chopper Circuit of Permanent Magnet Synchronous Generator

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Improved performance of SrFe₁₂O₁₉bulk magnets through bottom-up nanostructuring

Improved performance of SrFe₁₂O₁₉bulk magnets through bottom-up nanostructuring