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ENERGETICA

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rudi


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Am vazut la "TIBERAL" asa ceva si mi-am adus aminte de asta. Asa sa mai pun si eu cate ceva!
· Date: 10, August, 2018 · Views: 301 ·
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Keywords: ENERGETICA
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mihailo
10, August, 2018
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Un motoras de cc (cu magneti, nu stiu de la ce), o elice mesterita din lemn si un bec de lanterna plasat intr-un pahar din plastic rosu. Cocotate intr-un par inalt, luminau noaptea atunci cand adia un vanticel.
Se intampla cum mai bine de cinci decenii.
O fi scumpa una d-asta?!
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rudi
10, August, 2018
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Habar n-am, dar precis nu e ieftina, plus ca asa ceva are fro 10 m. inaltime, daca nu chiar mai mult si trebuie sa ai loc baban ca sa o pui. Gandeste-te ce fundatie trebuie sa aiba dracovenia asta. Asa, cu o sumedenie din astea, e altceva, poti alimenta si un sat intreg. Probabil ca, in functie de puterea distribuita, pot fi mai mari sau mai mici. Mai nou, prin Bucuresti, nu stiu prin alte parti, sunt montate pe stalpi panouri solare pe la treceri de pietoni nesemaforizate care-si fac datoria in timpul noptii, de asemenea prin parcuri.
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mihailo
10, August, 2018
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Panourile cu celule fotovoltaice au inceput sa apara si pe acoperisuri, pentru utilizari casnice.
Excluzand costurile inca ridicate ale intregii instalatii (in mod cert se vor ieftini) se pare ca fac treaba buna.
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Dumitru Drinovan
11, August, 2018
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UIte aciulea, e pe ebay… facuta in China 149.000 $ SH. dar are 50kW adica 6-8 familii pot trai din ce produce asta.
Ar fi bine ca o dracie de asta sa fie conectata la un system de baterii de mare capacitate care la o adica sa produca la randul ei AC daca vantul nu mai bate...

https://www.ebay.com/i/162156014670?chn=ps

Detalii tehnice aici:
50KW wind generator turbine energy Low Start Off Grid Speed High-Power Generation


• Place of Origin: China (Mainland)
•Brand Name: ORANGGE
• Model Number: OR-18.0-50KW
• Blades: 3
•Rated speed: 80r/min
• Working wind speed: 3.5-25m/s
•Type of generator: permanent-magnets- 3 phase A.C.
•After-sales Service Provided: Engineers available to service machinery overseas
•Condition: New
• Certification: CE
•Power(W): 380v/50kw
• Dimension(L*W*H): 18m
•Weight: 2200kg

The purpose of variable pitch control

The leaf angle in a certain range (0 degrees ---90), in order to adjust the output

Power, avoid fixed pitch units in determining the angle of attack, may have low power in summer, And winter super fat. At low wind speed, power optimization, better

The wind energy into electric energy.

Control strategy for variable pitch unit:

1- below the rated wind speed by controlling the rotational speed of the generator so that the tracking speed, so you can Optimal tracking Cp;

2- above the rated wind speed by the speed controller and variable interaction paddle controller, making power

The rate is relatively stable, the torque power curve is better.

The wind speed is below the rated stage: to achieve the main goal is to make as much as possible to absorb more wind impeller.

The bigger the Cp, the more wind energy absorption. Because the wind speed is below the rated wind speed is small, therefore, there is no need to pitch at this time, this will only need to set the minimum angle of the blade pitch angle regulation.

Above the rated wind speed: while playing the role of speed controller and pitch controller. The speed controller of the generator is controlled by the constant torque and constant power. Through the pitch adjusting the rotational speed of the generator, which always set point tracking speed.

Below is the Cp and lambda curves of different pitch angle corresponding to the minimum
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rudi
11, August, 2018
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Ma duc acum s-o cumpar, ce mama ciorilor!

Asa, ca o cunoastere a obiectului si a posibilitatilor sale, este interesant, dar nu pentru noi amarastenii; mai curand, pentru ca sa sunt eficace, panourile solare sunt mai interesante si, oricum, mai "ieftine".
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mariussecan
12, August, 2018
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Foarte bun unghiul de fotografiere si detaliile...
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rudi
12, August, 2018
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Multumesc Marius, daca-mi aduc bine aminte este de la Kaliakra din Bulgaria.
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Nicoleta Cimpoae
13, August, 2018
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Ordine si disciplina! "Soldatii" tai sunt mai aliniati decat cei ai lui Tiberal
Bine gasit unghiul de fotografiere ... privirea urmareste frumos sirul de turbine eoliene.
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rudi
13, August, 2018
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Imi pare bine Nicoleta ca ti-au placut soldatii mei.
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