Comparison of different ways for VAWT aerodynamic control

Самсонов, В. А.; Baklushin, P.

doi:10.1016/0167-6105(92)90566-s

Cited by 9 publications

(9 citation statements)

References 0 publications

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“…Kelebihan dari turbin angin sumbu vertikal dibandingkan dengan yang sumbu horizontal adalah memiliki sumbu rotasi bertepatan dengan arah angin serta kesederhanaan rancangan sudu-sudu VAWT terutama memiliki bagian simetris dengan chord konstan [4].…”

Section: Pendahuluanunclassified

Penggunaan Cyclone Ventilator sebagai Kincir Angin penggerak Generator

Indarto

Achaddiad

Indrawati

et al. 2016

JFA

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IntisariTelah dilakukan penelitian dengan menggunakan generator ceiling fan 12 W, dengan jumlah gear 35 dan 60 serta cyclone ventilator dengan jumlah gear 95. Pada kecepatan angin yang sama kecepatan poros generator pada pasangan gear 95/35 lebih besar dibandingkan dengan pasangan gear 95/60. Tegangan keluaran generator untuk pasangan gear 95/35 lebih besar dibandingkan pasangan gear 95/60. Pada pasangan gear 95/35 daya listrik yang dihasilkan generator sebesar 2,0 mW pada kecepatan angin 4,0 m/s dan kecepatan poros 40,2 rpm. AbstractThe research has been conducted using the generator ceiling fan 12 W, the number of gear are 35 and 60 as well as the number of gear cyclone ventilator is 95. At the same wind speed at the generator shaft speed gear pair 95/35 is greater than that 95/60. The output voltage generator for gear pair 95/35 is larger than gear pair 95/60. In the gear pair 95/35 generator power output of 2.0 mW at a wind speed is 4.0 m/s and spindle speed is 40.2 rpm .KATA KUNCI: cyclone ventilator, daya listrik, kecepatan poros, generator I. PENDAHULUANAkhir-akhir ini perhatian pada fenomena penggunaan energi terbarukan khususnya energi angin meningkat dengan cepat. Hal ini disebabkan semakin langkanya keberadaan sumber daya energi tak terbarukan seperti minyak, gas bumi, batu bara. Oleh karena itu perlu adanya reformasi penggunaan energi di berbagai bidang kegiatan yang akan mendorong penggunaan teknologi baru [1]. Salah satu alternatif dari energi terbarukan adalah energi angin. Energi ini mudah diperoleh dan mudah proses produksinya. Energi angin telah banyak digunakan di berbagai bidang seperti pembangkit listrik, tenaga gerak pompa air [2].

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Section: Pendahuluanunclassified

Penggunaan Cyclone Ventilator sebagai Kincir Angin penggerak Generator

Indarto

Achaddiad

Indrawati

et al. 2016

JFA

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“…Here, the efficiency is assumed to be fairly constant. However, the decreasing generator efficiency at low wind speeds might influence results slightly, see Figures 6,7, and 8 in Results and Discussion section. The estimation of the tip speed ratio is based on equations (2), (3), and (4) as…”

Section: Control Strategymentioning

confidence: 99%

“…The turbine is controlled electrically by controlling the power output and rotational speed of the generator, that is, no mechanical control as described in [7] is needed. The generator can be designed for robustness and efficiency in the absence of weight and volume constraints, as it is placed on ground level.…”

Section: Introductionmentioning

confidence: 99%

Tip speed ratio control of a 200 kW VAWT with synchronous generator and variable DC voltage

Eriksson

Kjellin

Bernhoff

2013

Energy Science & Engineering

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A novel control method for a fixed-pitch variable speed wind turbine is introduced and experimental results are presented. The measured absorbed power and rotational speed, together with a look-up table for the aerodynamic efficiency, are used to estimate the wind speed reaching the turbine as well as the tip speed ratio. Thereby, the control is independent on wind speed measurements and the wind turbine itself is used as an anemometer. Tip speed ratio control is implemented by comparing the estimated tip speed ratio to a reference value and adjusting the DC voltage level accordingly. Tip speed ratio control benefits from that the aerodynamic efficiency hardly varies with changing tip speed ratio when close to its optimum value. Experimental results from a 200 kW vertical axis wind turbine are presented. The voltage from the permanent magnet generator is passively rectified and the alternating DC voltage is then inverted, filtered, transformed, and grid connected. The estimated wind speed is compared with the measured wind speed. The absorbed power when tip speed ratio control has been implemented is shown. It is concluded that the presented control method works and some future improvements are discussed.

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“…Hence, the maintenance cost is expected to be lower than for conventional wind turbines. The turbine is controlled electrically by controlling the power output and rotational speed of the generator; that is, no mechanical control as described in [3] is needed. In wind speeds above nominal, the electrical system is accommodated by passive stall.…”

Section: Introductionmentioning

confidence: 99%

Electric Control Substituting Pitch Control for Large Wind Turbines

Kjellin

Eriksson

Bernhoff

2013

Journal of Wind Energy

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A completely electrical control of a variable speed wind turbine is experimentally verified. A vertical axis wind turbine with a direct driven generator and an electrical system with diode rectification and full inverter connected to the electric grid is presented. This is the first paper that presents this novel 200 kW wind power plant erected at the west coast of Sweden. The turbine has fixed pitch and is only controlled electrically accommodated by passive stall of the blades. By electrically controlling the generator rotational speed with the inverter, passive stall regulation is enabled. The first results on experimental verification of stall regulation in gusty wind speeds are presented. The experiments show that the control system can keep the turbine rotational speed constant even at very gusty winds. It is concluded that electrical control accommodated by passive stall is sufficient as control of the wind turbine even at high wind speeds and can substitute mechanical control such as blade pitch.

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Comparison of different ways for VAWT aerodynamic control

Cited by 9 publications

References 0 publications

Penggunaan Cyclone Ventilator sebagai Kincir Angin penggerak Generator

Penggunaan Cyclone Ventilator sebagai Kincir Angin penggerak Generator

Tip speed ratio control of a 200 kW VAWT with synchronous generator and variable DC voltage

Electric Control Substituting Pitch Control for Large Wind Turbines

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