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E513T
Wind Power Generation Essential Concepts (Timed & Monitored)

Jurandir Primo, P.E.

This course of Wind Power Generation Essential Concepts is a basic introduction, of the most common wind turbines. Wind power turbine can be defined as a huge fan or a propeller moved by the wind, consisting of 3 blades that rotate, in a way that the axis of rotation must be aligned with the directionof the blowing wind. A gear box is used for converting the electric energy, using mechanical methods; hence, it is termed as a high-precision mechanical system. There are many different types of wind turbines, but the frequently used wind turbines are horizontal axis turbines and vertical axis turbines.

Renewable energy sources, such as, solar, wind, tidal, hydro, biomass, and geothermal have become significant sectors of the energy market. Wind turbines used in wind farms for electricity production are usually three-bladed, generally mounted onshore or offshore with computer-controlled motors. These have high tip speeds of over 320 km/h (200 mph), high efficiency and low torque, which contribute to good reliability. The blades are usually colored white for daytime visibility by aircraft, and range from 20 to 40 meters (66 to 131 ft) or more. The tubular steel towers range from 60 to 90 meters (200 to 300 ft) tall.

Two different types of turbines are common today: geared wind turbines or direct drive turbines. Direct drive turbines need a huge generator due to low rotation speed. Geared wind turbines are using a direct coupled gear box, also used for stepping up the speed of the small generator. Some models operate at constant speed, but more energy can be collected by variable-speed turbines which use a solid-state power converter to interface to the transmission system. All turbines are equipped with protective features to avoid damage at high wind speeds, by feathering the blades into the wind which ceases their rotation, supplemented by brakes.

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.


User's Guide to Timed & Monitored Online Courses:

For Timed & Monitored (T&M) online courses, you need to log into your account to view the course content. You must complete the required study time (min. 50 minutes for each PDH) before you can submit your quiz answers and obtain your certificate of completion. However, you may print out the quiz questions anytime after purchase.

You do not need to complete the T&M course in one sitting. You may view the course content from office or home using different devices with Internet connection. Our website will keep track of your total time spent. If necessary, you may print the course content for ease of reading while you are online. You may also preview the content of E513T by viewing the content of E513 since they are identical.

For T&M courses, You need to actively view course content online - at least click your mouse once in a while. The on-screen tracking clock may stop due to inactivity at your end. If that happens, you may resume your clock by pressing F5 key on your keyboard or by refreshing your screen. Thank you for your cooperation.

Note: This course requires users to pay first before viewing the course content.

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NY PE & PLS: You must choose courses that are technical in nature or related to matters of laws and ethics contributing to the health and welfare of the public. NY Board does not accept courses related to office management, risk management, leadership, marketing, accounting, financial planning, real estate, and basic CAD. Specific course topics that are on the borderline and are not acceptable by the NY Board have been noted under the course description on our website.

AIA Members: You must take the courses listed under the category "AIA/CES Registered Courses" if you want us to report your Learning Units (LUs) to AIA/CES. If you take courses not registered with AIA/CES, you need to report the earned Learning Units (not qualified for HSW credits) using Self Report Form provided by AIA/CES.

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