The wind data of a site is listed below. The data summarizes the wind speeds and their respective frequencies at the hub height of the turbine described below: Parameters: Turbine rotor diameter: 70.0 m Overall efficiency: 33% Site air density 1.16 kg/m generator disengaged for the input values below 30% of the rated power Generator cutoff low speeds: High speeds: load dumping up to 3 times the rated power
The wind data of a site is listed below. The data summarizes the wind speeds and their respective frequencies at the hub height of the turbine described below: Parameters: Turbine rotor diameter: 70.0 m Overall efficiency: 33% Site air density 1.16 kg/m generator disengaged for the input values below 30% of the rated power Generator cutoff low speeds: High speeds: load dumping up to 3 times the rated power
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:The wind data of a site is listed below. The data summarizes the wind speeds and their respective frequencies
at the hub height of the turbine described below:
Parameters:
Turbine
rotor diameter:
70.0 m
Overall efficiency:
33%
3
Site
air density
1.16 kg/m
generator disengaged for the input values below 30%
of the rated power
Generator cutoff
low speeds:
High speeds:
load dumping up to 3 times the rated power
Determine a generator size that maximizes the annual energy output. Consider generator ratings in increments
of 25 kW. Express the final answer in kWh.
Transcribed Image Text:wind energy
assignment 3/ wind profile
windspeed (m/s)
frequency (hr)
1.5
25
2
40
2.5
70
120
3.5
195
4
290
4.5
430
535
5.5
595
640
6.5
670
7
655
7.5
630
8
585
8.5
520
430
9.5
320
10
245
10.5
190
11
170
11.5
200
12
215
12.5
210
13
195
13.5
155
14
115
14.5
80
15
60
15.5
46
16
35
16.5
26
17
19
17.5
14
18
18.5
7
19
19.5
4
20
3
20.5
2
21
2
21.5
1
22
1
23
1
8760
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