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The sun is the only star of our solar system located at its center. The earth and other planets orbit the sun. Energy from the sun in the form of solar radiation supports almost all life on earth via photosynthesis and drives the earth’s climate and weather. Solar powered electrical generation relies on heat engines […]

Power Factor is the relationship between the active power and the apparent power. The relationship between the types of power used to run a system is usually shown as a right-angled triangle. Real power is the capacity of the circuit for performing work in a particular time. Apparent power is the product of the current and voltage

Climate change and the need for secure energy supply, are increasingly contributing to the need for creation of an integrated energy strategy at European and national level. All EU Member States are faced with the challenges of climate change, increasing of import dependence and higher energy prices. Within the European Economic Area (EEA), European Union

The objective of this paper is to identify suitable generator concepts for direct-drive wind turbines by reviewing direct-drive and geared generator systems. Usually, in literature, comparison of different generator systems is discussed with the criteria based on the energy yield, cost, and weight. Because direct-drive permanent-magnet machines are more superior in terms of the energy