Download e-book for kindle: Grid Converters for Photovoltaic and Wind Power Systems by Remus Teodorescu

By Remus Teodorescu

ISBN-10: 0470057513

ISBN-13: 9780470057513

Grid converters are the main participant in renewable strength integration. The excessive penetration of renewable strength platforms is looking for brand spanking new extra stringent grid standards. thus, the grid converters might be capable of convey complicated features like: dynamic keep an eye on of energetic and reactive energy, operation inside quite a lot of voltage and frequency, voltage ride-through power, reactive present injection in the course of faults, grid companies aid.

This e-book explains the topologies, modulation and keep watch over of grid converters for either photovoltaic and wind energy functions. as well as strength electronics, this booklet specializes in the categorical functions in photovoltaic wind energy platforms the place grid situation is an important factor.

With a overview of the newest grid requisites for photovoltaic and wind energy platforms, the publication discusses those different correct issues:

  • modern grid inverter topologies for photovoltaic and wind generators
  • islanding detection tools for photovoltaic structures
  • synchronization thoughts in line with moment order generalized integrators (SOGI)
  • advanced synchronization thoughts with powerful operation lower than grid unbalance situation grid filter out layout and lively damping thoughts
  • power keep watch over less than grid fault stipulations, contemplating either confident and unfavourable sequences

Grid Converters for Photovoltaic and Wind strength Systems is meant as a coursebook for graduated scholars with a historical past in electric engineering and in addition for pros within the evolving renewable strength undefined. for individuals from academia attracted to adopting the direction, a collection of slides is obtainable for obtain from the web site.

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Additional info for Grid Converters for Photovoltaic and Wind Power Systems

Sample text

Advantages: r Voltage across the filter is unipolar (0 → +VPV → 0 → −VPV → 0), yielding lower core losses. r The rating of the DC bypass switches is half of the DC voltage. r Higher efficiency is due to no reactive power exchange between L 1(2) and CPV1(2) during zero voltage and to a lower switching frequency in the FB and low voltage rating of S5 and S6. r VPE has only a grid frequency component and no switching frequency components, yielding a very low leakage current and EMI. P1: OTA/XYZ P2: ABC c02 BLBK295-Teodorescu November 11, 2010 19:37 Printer Name: Yet to Come Photovoltaic Inverter Structures 19 Drawbacks: r Two extra switches and two extra diodes.

Deviation from these standards represents out-of-bounds conditions and may require disconnection of the photovoltaic system from the utility. 1 DC Current Injection DC current injection in the utility can saturate the distribution transformers, leading to overheating and trips. For the conventional PV systems with galvanic isolation, this problem is minimized, but with the new generation of transformerless PV inverters increased attention is required in this matter. 5 are accepted. Observation: For IEEE 1574 and IEC 61727 the DC component of the current should be measured by using harmonic analysis (fast Fourier transform, or FFT) and there is no maximum trip time condition.

Magi, H. , ‘A New Neutral-Point-Clamped PWM Inverter’. IEEE Transactions on Industry Applications, IA-17(5), September/October 1981, 518–523. , International Patent Application, Publication Number WO 2007/048420 A1, 3 May 2007. G. , ‘Multilevel Converters for Single-Phase Grid Connected Photovoltaic Systems: An Overview’. Solar Energy, 66(5), August 1999, 325–335. , Undeland, T. and Robbins, P. , Power Electronics. Converters, Applications and Design, John Wiley & Sons, Ltd, Chichester, 2003, ISBN 0471226939.

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Grid Converters for Photovoltaic and Wind Power Systems by Remus Teodorescu

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