Download or read book Development of Three phase Source Inverter for Research and Laboratories written by Henry O. Amadasu and published by . This book was released on 2011 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The small-scale implementation of a power system that explores a three-phase voltage source inverter (VSI) controlled by a Field Programmable Gate Array (FPGA) is investigated in this thesis. The Naval Postgraduate School (NPS) continuously develops new power systems that explore FPGA control of power electronics. The development, testing and documentation of a three-phase voltage source inverter interfacing with an FPGA and hardware is focused on in this thesis. The development of a three-phase VSI, the thermal and power loss analysis of a three-phase VSI and the hardware interface between the FPGA and the three-phase VSI used for research and laboratory procedures at NPS are particularly concentrated on.
Download or read book Dynamic Modeling and Analysis of the Three phase Voltage Source Inverter Under Stand alone and Grid tied Modes written by Faleh A. Alskran and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing energy demand, rising oil prices, and environmental concerns have forced attention to alternative energy sources that are environmentally friendly and independent of fossil fuels. Renewable energy sources (RES) have become an attractive alternative to the traditional energy sources for electric power generation. However, one of the main challenges of RES adaption arises when connecting RES to the electric grid. Voltage source inverters (VSIs), typically, connect RES to the electric grid. Similar to any engineering system, detailed dynamic models of the VSIs are needed for design and analysis purposes. However, due to the non-linearity of VSIs, development of dynamic models that can accurately describe their behavior is a complex task. In this thesis, a detailed averaged-state-space model of the two-level three-phase space vector pulse width modulation VSI and its companion LCL filter is derived. Because VSIs can operate under stand-alone and grid-tied modes, two models were derived for each case. In the derived models, the VSI modulation index m and phase angle ø are initially considered constant. In practice, however, these parameters are considered the main control parameters. To model these parameters as control inputs, small-signal models of the VSI under stand-alone and grid-tied modes were derived. To verify the accuracy of the developed large-signal and small-signal models, Matlab/Simulink simulations were carried out. The simulation results were compared against the models results. Moreover, the models were verified through lab experiments. The developed models can be used as design and analysis tools. In addition, the developed models can be used as fast and efficient simulation tools for system studies, when the modeling of switching transients is not needed. Nowadays, the number of VSIs connected to the electric grid is growing exponentially. The amount of time and computation needed to simulate VSIs using simulation software packages can be significantly decreased by the use of the developed models.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Developments on Power Inverters written by Ali Saghafinia and published by BoD – Books on Demand. This book was released on 2017-06-21 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book develops some methods and structures to improve the power inverters for different applications in a single-phase or three-phase output in recent years. The reduction of the switching devices and multilevel inverters as changing structure for the power inverters and PDM and PWM methods as changing control methods for the power inverter are studied in this book. Moreover, power inverters are developed to supply open-ended loads. Furthermore, the basic and advanced aspects of the electric drives that are control based are taught for induction motor (IM) based on power inverters suitable for both undergraduate and postgraduate levels. The main objective of this book is to provide the necessary background to improve and implement the high-performance inverters. Once the material in this book has been mastered, the reader will be able to apply these improvements in the power inverters to his or her problems for high-performance power inverters.
Download or read book Development of P resonant Controller for Z source Three Phase Inverter written by Ayoub Mehda and published by . This book was released on 2015 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Evaluation of a High efficiency Power Inverter written by Eugene L. Kelsey and published by . This book was released on 1970 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Implementation and Verification of a Multipurpose Flexible Three phase Back to back Voltage source Inverter written by Elaina T. Chai and published by . This book was released on 2014 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, I designed, implemented, and verified a multi-purpose,three-phase back-to- back voltage source inverter for grid connected applications. This inverter features extensive hardware protection, opto-isolation between the power stage and the controller, and reconfigurable I/O routing. The converter is designed for both research and teaching to enable rapid prototyping and verification of advanced control algorithms for grid-connected converters, motor drives etc. I also demonstrate the utility of the power electronics converter as a vector controlled PMSM motor drive. Finally, I use the inverter to perform frequency domain validation of a hardware-in-the-loop simulator. I then design and implement a virtual spectrum analyzer, whose implementation required the creation of a DFT algorithm in python based on the Goertzel algorithm.
Download or read book Next Generation Three Phase Inverters Phase One Annual Report 1996 written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the accomplishments of Advanced Energy Systems Inc., under Phase One of their PV Manufacturing Technology (PVMaT) subcontract. These accomplishments include the development of hardware, software, product documentation, and capabilities and specifications for a PV-hybrid three-phase inverter. The document defines models, performance, electrical, and physical systemparameters; enhanced control system, liquid-crystal display interface providing intuitive, multi-lingual operator support; integrated high-precision data and event-logging capability; development of Windows-based system control and data acquisition software for remote monitoring; significant integration and simplification of the inverter control card electronics; enhanced performance of sinewavegeneration that exceeds market requirements for PV-hybrid 'village application' voltage regulation parameters; implementation of digital control core facilitating further development of integrated self-test and diagnostic procedures; compilation of comprehensive Bill of Materials with data sheets for the PV-hybrid product; development of specifications and production ability for magneticcomponents in the inverter; collaboration with WPI Power as a semi-custom manufacturing group; and development of a single-phase test inverter leg for high-power performance and design evaluation.
Download or read book Design Approach for a Three Phase Voltage Source Inverter with Low Harmonic Distortion for a Wide Range of Operating Conditions written by Karin Rezende Feistel and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: DC-AC power electronic converters, or inverters, are frequently used in AC motor drives, in AC grid interfaces of renewable energy sources and energy storage units and to supply AC power to loads in stand-alone systems. They are usually of the Voltage Source Inverter (VSI) type and are expected to operate either at a constant frequency and voltage magnitude or within a small range. Passive Low-Pass Filters (LPF) are employed to attenuate the switching harmonics providing outputs voltages with low Total Harmonic Distortion (THDV), in the order of 1% to 3%. This is a well-established commercial technology. This research work concerns a three-phase 6-switch VSI that is expected to provide an extremely low THDV for the output voltage, about 0.5%, with a wide range for the voltage magnitude, 10% to 100% of rated voltage, and frequency in the range of DC to 1 kHz . In such a case, the design of the output LPF becomes more complicated, mostly considering that the load can also vary in a wide range. The target application for this inverter is the emulation of AC rotating machines. Usually linear power amplifiers are employed in this application but they are very expensive, mostly in the power range of tens to hundreds of kVA. This Thesis proposes an approach for designing a second-order LC LPF for the demanding conditions stated above. The VSI is controlled with Sinusoidal Pulse-Width Modulation (SPWM) and an algorithm that considers the magnitudes of the voltage components of the VSI and the attenuation/amplification of the LPF is developed. It computes suitable values for L and C that allow the system to provide the required fundamental component and THDV with the VSI operating in the linear SPWM mode. Then, a voltage control loop is designed for the VSI and an assessment of the converter losses and efficiency is carried out. The performance of the proposed system is verified by means of simulation with MATLAB and PSIM.
Download or read book Three Phase Voltage Source Inverter with Very High Efficiency Based on SiC Devices written by Hani Muhsen and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three Phase Voltage Source Inverter with Very High Efficiency Based on SiC Devices written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to Wavelet Modulated Inverters written by S. A. Saleh and published by John Wiley & Sons. This book was released on 2011-03-16 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: AN INTRODUCTION TO Wavelet Modulated Inverters An authoritative guide to designing and constructing wavelet functions that accurately model complex circuits for better performance This is the first book to provide details, analysis, development, implementation, and performances of wavelet modulated (WM) inverters, a novel technique that keeps power systems stable and minimizes energy waste while enhancing power quality and efficiency. Written by experts in the power electronics field, it provides step-by-step procedures to implement the WM technique for single- and three-phase inverters. Also presented are key sample performance results for the new WM power inverters for different load types, which demonstrate the inverters’ simplicity, efficacy, and robustness. Beginning with the fundamentals of inverter technology, the book then describes wavelet basis functions and sampling theory with particular reference to the switching model of inverters. From there, comprehensive chapters explain: The connection between the non-uniform sampling theorem and wavelet functions to develop an ideal sampling-reconstruction process to operate an inverter The development of scale-based linearly combined basis functions in order to successfully operate single-phase WM inverters Performances of single-phase WM inverters for static, dynamic, and non-linear loads The simulation and experimental performances of three-phase wavelet modulated voltage source inverters for different loads at various operating conditions The book establishes, for the first time, a direct utilization of different concepts of the sampling theorem and signal processing in accurate modeling of the operation of single- and three-phase inverters. Figures are provided to help develop the basis of utilizing concepts of the sampling, signal processing, and wavelet theories in developing a new tool and technology for inverters. Also included are easy-to-follow mathematical derivations, as well as procedures and flowcharts to facilitate the implementation of the WM inverters. These items make this unique reference of great interest to academic researchers, industry-based researchers, and practicing engineers. It is ideally suited for senior undergraduate and graduate-level students in electrical engineering, computer engineering, applied signal processing, and power electronics courses.
Download or read book Design and Implementation of Three phase Inverters Using a TMS320F2812 Digital Signal Processor written by Duehee Lee and published by . This book was released on 2009 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this thesis project was to design and build a three-phase inverter controlled by the TMS320F2812 DSP by Texas Instruments. The TMS320F2812 is controlled in order to make inverters generate output waveforms which mimic the main reference signal coming from a computer. The project included building three different inverters on two platforms including auxiliary circuits and designing five pulse width modulation (PWM) switching algorithms for the inverters. The motivation was that a newly designed inverter was required as an intermediary device between a computer and a laboratory-scaled model of a wind turbine. This type of wind turbine is used to educate students and engineers and to extract experimental wind power data. However, since commercial inverters don't follow the main reference signal which is sent from the computer in order to operate the laboratory-scaled wind turbine, a controllable and variable inverter needed to be designed to receive that signal. The results are as follows. The voltage source inverter (VSI) and the current-controlled voltage source inverter (CC-VSI) were built on the VSI platform, and the current source inverter (CSI) was built on the CSI platform. Furthermore, the TMS320F2812's analog digital converter (ADC) driver circuit and the output LC filter were also designed as auxiliary circuits. Five PWM switching programs were written; three switching algorithms for the VSI, and one algorithm each for the CC-VSI and the CSI. The output waveforms from the combination of hardware and software mentioned above were captured, and they follow the main reference signal very well. Although each of the inverters performed well, the VSI in combination with the Space Vector PWM switching algorithm produced the cleanest output voltage waveforms with the least amount of noise. The inverters built in this thesis project can be applied to the laboratory-scaled wind turbine, the maximum power tracking in solar panels, and equipment for analyzing digital signal processing. However, before using the inverters in those applications, much work remains to be done to solve the problems related to the signal distortion caused by the dead band time, harmonic signals caused by the fixed switching frequency, and the reliability issues caused by mounting on the bread board. In conclusion, although this thesis does not illustrate the entire process of or explain every requirement for building the three inverters, enough information about the topology of the inverters, the hardware design, and the PWM switching algorithms is provided in this thesis to enable one to remake all three of the three-phase inverters.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inventory of Current Energy Research and Development written by Oak Ridge National Laboratory and published by . This book was released on 1972 with total page 1296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Power Electronic Converters written by Narayanaswamy P R Iyer and published by CRC Press. This book was released on 2018-03-09 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a step-by-step method for the development of a virtual interactive power electronics laboratory. The book is suitable for undergraduates and graduates for their laboratory course and projects in power electronics. It is equally suitable for professional engineers in the power electronics industry. The reader will learn to develop interactive virtual power electronics laboratory and perform simulations of their own, as well as any given power electronic converter design using SIMULINK with advanced system model and circuit component level model. Features Examples and Case Studies included throughout. Introductory simulation of power electronic converters is performed using either PSIM or MICROCAP Software. Covers interactive system model developed for three phase Diode Clamped Three Level Inverter, Flying Capacitor Three Level Inverter, Five Level Cascaded H-Bridge Inverter, Multicarrier Sine Phase Shift PWM and Multicarrier Sine Level Shift PWM. System models of power electronic converters are verified for performance using interactive circuit component level models developed using Simscape-Electrical, Power Systems and Specialized Technology block set. Presents software in the loop or Processor in the loop simulation with a power electronic converter examples.
Download or read book Parallel operating three phase voltage source inverters circulating current modeling analysis and mitigation written by Toni Itkonen and published by . This book was released on 2010 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
