Download e-book for kindle: Advanced DC/AC Inverters: Applications in Renewable Energy by Fang Lin Luo, Hong Ye

By Fang Lin Luo, Hong Ye

ISBN-10: 1466511389

ISBN-13: 9781466511385

DC/AC inversion expertise is of important significance for commercial functions, together with electric automobiles and renewable strength structures, which require a good number of inverters. in recent times, inversion expertise has constructed quickly, with new topologies bettering the ability issue and extending energy potency. featuring many novel techniques, complicated DC/AC Inverters: functions in Renewable power describes complex DC/AC inverters that may be used for renewable power structures. The ebook introduces greater than a hundred topologies of complicated inverters initially built by way of the authors, together with greater than 50 new circuits. It additionally discusses lately released state of the art topologies.

Novel PWM and Multilevel Inverters

The ebook first covers conventional pulse-width-modulation (PWM) inverters sooner than relocating directly to new quasi-impedance resource inverters and soft-switching PWM inverters. It then examines multilevel DC/AC inverters, that have triumph over the drawbacks of PWM inverters and supply higher scope for business purposes. The authors suggest 4 novel multilevel inverters: laddered multilevel inverters, super-lift modulated inverters, switched-capacitor inverters, and switched-inductor inverters. With easy constructions and less parts, those inverters are compatible for renewable power systems.

Get the simplest Switching Angles for Any Multilevel Inverter

A key subject for multilevel inverters is the necessity to deal with the switching angles to procure the bottom overall harmonic distortion (THD). The authors define 4 equipment for locating the simplest switching angles and use simulation waveforms to ensure the layout. The optimal switching angles for multilevel DC/AC inverters also are indexed in tables for fast reference.

Application Examples of DC/AC Inverters in Renewable strength Systems

Highlighting the significance of inverters in enhancing power saving and power-supply caliber, the ultimate bankruptcy of the booklet offers layout examples for purposes in wind turbine and sun panel power platforms. Written by means of pioneers in complicated conversion and inversion know-how, this publication publications readers in designing more advantageous DC/AC inverters to be used in renewable strength platforms.

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DC/AC inversion know-how is of significant significance for commercial purposes, together with electric cars and renewable power structures, which require various inverters. in recent times, inversion expertise has constructed speedily, with new topologies enhancing the ability issue and extending strength potency.

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There are some drawbacks using bipolar modulation: (1) if the inverter is VSI, a dead time has to be set to avoid a short circuit; (2) the zero output voltage corresponds to the equal-pulse width of positive and negative pulses; (3) power losses are high since two devices work, and hence the efficiency is lower; and (4) two devices should be controlled simultaneously. 17. There are two triangle signals in positive and negative levels. When the control signal is positive, only the top switch works and when the control signal is negative, only the lower switch works.

3 Soft Switching Methods The soft switching technique has been widely used in switching circuits for a long time. It effectively reduces the power losses of equipment and greatly increases the power transfer efficiency. A few soft switching technique methods will be introduced in this book. Luo, F. L. and Ye, H. 2010. Power Electronics: Advanced Conversion Technologies, Boca Raton, FL: Taylor & Francis. 2. Luo, F. , and Rashid, M. H. 2005. Digital Power Electronics and Applications. Boston: Academic Press Elsevier.

A ZSI has both buck and boost operation function. Its output voltage peak value can be higher or lower than the DC link voltage. 4 Circuits of DC/AC Inverters The generally used DC/AC inverters are as follows: 1. Single-phase full-bridge VSI 3. , Undeland, T. , and Robbins, W. P. 2003. Power Electronics: Converters, Applications and Design (3rd edition). New York: John Wiley & Sons. 2. Holtz, J. 1992. Pulsewidth modulation—A survey. IEEE Trans. Ind. , pp. 410–420. 3. Peng, F. Z. 2003. Z-source inverter.

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