By Alireza Khaligh
Also known as power scavenging, power harvesting captures, shops, and makes use of "clean" strength assets by means of making use of interfaces, garage units, and different devices. not like traditional electrical strength iteration structures, renewable strength harvesting doesn't use fossil fuels and the new release devices might be decentralized, thereby considerably lowering transmission and distribution losses. yet complicated technical equipment needs to be constructed to extend the potency of units in harvesting power from environmentally pleasant, "green" assets and changing them into electric energy.
Recognizing this desire, Energy Harvesting: sunlight, Wind, and Ocean strength Conversion Systems describes a variety of strength harvesting applied sciences, diverse topologies, and plenty of kinds of energy digital interfaces for stand-alone usage or grid connection of power harvesting purposes. in addition to delivering all of the priceless thoughts and theoretical historical past, the authors increase simulation types through the textual content to construct a realistic realizing of approach research and modeling.
With a spotlight on solar power, the 1st bankruptcy discusses the I-V characteristics of photovoltaic (PV) platforms, PV types and an identical circuits, solar monitoring platforms, greatest strength element monitoring platforms, shading results, and gear digital interfaces for grid-connected and stand-alone PV platforms. It additionally provides sizing standards for purposes and glossy solar power purposes, together with residential, vehicular, naval, and area functions. the subsequent bankruptcy reports varieties of wind generators and electric machines in addition to a variety of strength digital interfaces. After explaining the power new release applied sciences, optimum operation rules, and attainable usage suggestions of ocean tidal strength harvesting, the ebook explores close to- and offshore techniques for harvesting the kinetic and strength power of ocean waves. It additionally describes the mandatory absorber, turbine, and generator kinds, in addition to the facility digital interfaces for grid connection and commercialized ocean wave strength conversion functions. the ultimate bankruptcy bargains with closed, open, and hybrid-cycle ocean thermal strength conversion systems.
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Additional info for Energy Harvesting: Solar, Wind, and Ocean Energy Conversion Systems (Energy, Power Electronics, and Machines)
26. In this case, there are five fuzzy levels, which are NB (negative big), NS (negative small), ZE (zero), PS (positive small), and PB (positive big). To increase the accuracy, a greater number of fuzzy levels can be used. 26. In the membership function, some specific fuzzy levels can be designed as unsymmetrical to make them more dominant, in other words to give them more importance [49,53,57,58]. The error E and its variation (ΔE) are inputs to the fuzzy logic-based MPPT controller. E and ΔE can be calculated based on the users’ preferences.
36) where k3 is a positive constant. 38, MPP will be continuously tracked. 38 are generally difficult to calculate. Therefore, alternatively, AC-coupled measurements of the PV array current and voltage can be used. It will be easier to calculate the derivatives of AC-coupled current and voltage, since they have the necessary phase information. In © 2010 by Taylor and Francis Group, LLC 32 Energy Harvesting: Solar, Wind, and Ocean Energy Conversion Systems another way, the high-pass filters with higher cut-off frequencies than the ripple frequency can be used to estimate the derivatives.
Therefore, higher than 8 kHz frequency components of the AC voltage will be eliminated. 48 Inverter input voltage in the fly-back converter. 50. This voltage has reduced harmonic distortion and switching noise. 46 can be modified. 51 shows a series resonant DC/DC converter plus a full bridge grid-connected inverter that is modified by adding two additional diodes [83,84]. ” Switching losses are reduced by a resonant tank through zero-voltage switching. The switching losses from the converter can be reduced in this way.